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ANTI-LOCK BRAKING SYSTEM (ABS) AND ELECTRONIC STABILITY CONTROL
(ESC): FOR MODULAR BRAKING SYSTEM PLATFORM
(mBSP™) VERSION ECUs, 12-VOLT SYSTEMS
MAINTENANCE MANUAL
Service Notes
Information contained in this publication was in effect at the time the publication was approved for printing and is subject to change without notice or liability. WABCO reserves the right to revise the information presented or to discontinue the production of parts described at any time.
WABCO Maintenance Manual MM-1719 (Revised 08-18)
About This ManualThis manual provides maintenance procedures for WABCO’s Anti-Lock Braking System (ABS), Electronic Stability Control (ESC) and Hill Start Aid (HSA) using Modular Braking System Platform (mBSPTM) version ECUs.
Before You Begin1. Read and understand all instructions and procedures before
you begin to service components.
2. Read and observe all Warning and Caution hazard alert messages in this publication. They provide information that can help prevent serious personal injury, damage to components, or both.
3. Follow your company’s maintenance and service, installation, and diagnostics guidelines.
4. Use special tools when required to help avoid serious personal injury and damage to components.
Hazard Alert Messages and Torque SymbolsRead and observe all Warning and Caution hazard alert messages in this publication. They provide information that can help prevent serious personal injury, damage to components, or both.
WARNINGA Warning alerts you to an instruction or procedure that you must follow exactly to avoid serious personal injury and damage to components.
CAUTIONA Caution alerts you to an instruction or procedure that you must follow exactly to avoid damage to components.
@ This symbol alerts you to tighten fasteners to a specified torque value.
WARNINGTo prevent serious personal injury, always wear safe eye protection when you perform vehicle maintenance or service.
Release all air from the air systems before you remove any components. Pressurized air can cause serious personal injury.
CAUTIONWhen welding on an ABS- or ABS/ATC/HSA/ESC-equipped vehicle is necessary, disconnect the power connector from the ECU to prevent damage to the electrical system and ABS/ATC components.
How to Obtain Additional Maintenance, Service and Product InformationVisit Literature on Demand at Meritor.com to access and order additional information.
Contact WABCO North America Customer Care at 855-228-3203 (United States and Canada); 001-800-889-1834 (Mexico); or email [email protected].
If Tools and Supplies are Specified in This ManualCall Meritor’s Commercial Vehicle Aftermarket at 888-725-9355 to obtain tools and supplies.
Contents
pg. i Asbestos and Non-Asbestos Fibers1 Section 1: Introduction
ContentsAnti-Lock Braking System (ABS)System ComponentsElectronic Control Unit (ECU)Wheel Speed Sensing SystemsPressure Modulator Valves
2 Active Braking Valves (ABV)3 Foot Brake Valve (FBV)
Steering Angle Sensor (SAS)Electronic Stability Control (ESC) ModuleTrailer Modulator ValveOff-Road ABS SwitchATC Switch
4 Section 2: Stability and Safety Enhancement SystemsAutomatic Traction Control (ATC)ATC ComponentsATC SwitchElectronic Stability Control (ESC)ESC ComponentsHill Start Aid (HSA)HSA ComponentsDrag Torque Control
5 Section 3: Diagnostics, Troubleshooting and TestingMaintenance InformationTOOLBOX™ Software Diagnostics
7 TestingWheel Speed Sensor Testing
9 Modulator Valve Testing10 ABV Testing
ESC CAN Network TestingESC Module TestingESC Module MountingSAS Testing
11 Section 4: Wiring Diagrams and ConnectorsmBSPTM ABS ECU Wiring Diagram
12 Harness Connectors
16 Section 5: SPN FMI Fault CodesDTC SPN FMI Tables
Asbestos and Non-Asbestos Fibers
i WABCO Maintenance Manual MM-1719 (Revised 08-18)
ASBESTOS FIBERS WARNING The following procedures for servicing brakes are recommended to reduce exposure to asbestos fiber dust, a cancer and lung disease hazard. Material Safety Data Sheets are available from WABCO.
Hazard SummaryBecause some brake linings contain asbestos, workers who service brakes must understand the potential hazards of asbestos and precautions for reducing risks. Exposure to airborne asbestos dust can cause serious and possibly fatal diseases, including asbestosis (a chronic lung disease) and cancer, principally lung cancer and mesothelioma (a cancer of the lining of the chest or abdominal cavities). Some studies show that the risk of lung cancer among persons who smoke and who are exposed to asbestos is much greater than the risk for non-smokers. Symptoms of these diseases may not become apparent for 15, 20 or more years after the first exposure to asbestos.
Accordingly, workers must use caution to avoid creating and breathing dust when servicing brakes. Specific recommended work practices for reducing exposure to asbestos dust follow. Consult your employer for more details.
Recommended Work Practices1. Separate Work Areas. Whenever feasible, service brakes in a separate area away from other operations to reduce risks to unprotected persons. OSHA has set a maximum allowable level of exposure for asbestos of 0.1 f/cc as an 8-hour time-weighted average and 1.0 f/cc averaged over a 30-minute period. Scientists disagree, however, to what extent adherence to the maximum allowable exposure levels will eliminate the risk of disease that can result from inhaling asbestos dust. OSHA requires that the following sign be posted at the entrance to areas where exposures exceed either of the maximum allowable levels:
DANGER: ASBESTOSCANCER AND LUNG DISEASE HAZARD
AUTHORIZED PERSONNEL ONLYRESPIRATORS AND PROTECTIVE CLOTHING
ARE REQUIRED IN THIS AREA. 2. Respiratory Protection. Wear a respirator equipped with a high-efficiency (HEPA) filter approved by NIOSH or MSHA for use with asbestos at all times when servicing brakes, beginning with the removal of the wheels.3. Procedures for Servicing Brakes.a. Enclose the brake assembly within a negative pressure enclosure. The enclosure should be
equipped with a HEPA vacuum and worker arm sleeves. With the enclosure in place, use the HEPA vacuum to loosen and vacuum residue from the brake parts.
b. As an alternative procedure, use a catch basin with water and a biodegradable, non-phosphate, water-based detergent to wash the brake drum or rotor and other brake parts. The solution should be applied with low pressure to prevent dust from becoming airborne. Allow the solution to flow between the brake drum and the brake support or the brake rotor and caliper. The wheel hub and brake assembly components should be thoroughly wetted to suppress dust before the brake shoes or brake pads are removed. Wipe the brake parts clean with a cloth.
c. If an enclosed vacuum system or brake washing equipment is not available, employers may adopt their own written procedures for servicing brakes, provided that the exposure levels associated with the employer’s procedures do not exceed the levels associated with the enclosed vacuum system or brake washing equipment. Consult OSHA regulations for more details.
d. Wear a respirator equipped with a HEPA filter approved by NIOSH or MSHA for use with asbestos when grinding or machining brake linings. In addition, do such work in an area with a local exhaust ventilation system equipped with a HEPA filter.
e. NEVER use compressed air by itself, dry brushing, or a vacuum not equipped with a HEPA filter when cleaning brake parts or assemblies. NEVER use carcinogenic solvents, flammable solvents, or solvents that can damage brake components as wetting agents.
4. Cleaning Work Areas. Clean work areas with a vacuum equipped with a HEPA filter or by wet wiping. NEVER use compressed air or dry sweeping to clean work areas. When you empty vacuum cleaners and handle used rags, wear a respirator equipped with a HEPA filter approved by NIOSH or MSHA for use with asbestos. When you replace a HEPA filter, wet the filter with a fine mist of water and dispose of the used filter with care.5. Worker Clean-Up. After servicing brakes, wash your hands before you eat, drink or smoke. Shower after work. Do not wear work clothes home. Use a vacuum equipped with a HEPA filter to vacuum work clothes after they are worn. Launder them separately. Do not shake or use compressed air to remove dust from work clothes.6. Waste Disposal. Dispose of discarded linings, used rags, cloths and HEPA filters with care, such as in sealed plastic bags. Consult applicable EPA, state and local regulations on waste disposal.
Regulatory GuidanceReferences to OSHA, NIOSH, MSHA, and EPA, which are regulatory agencies in the United States, are made to provide further guidance to employers and workers employed within the United States. Employers and workers employed outside of the United States should consult the regulations that apply to them for further guidance.
NON-ASBESTOS FIBERS WARNING The following procedures for servicing brakes are recommended to reduce exposure to non-asbestos fiber dust, a cancer and lung disease hazard. Material Safety Data Sheets are available from WABCO.
Hazard SummaryMost recently manufactured brake linings do not contain asbestos fibers. These brake linings may contain one or more of a variety of ingredients, including glass fibers, mineral wool, aramid fibers, ceramic fibers and silica that can present health risks if inhaled. Scientists disagree on the extent of the risks from exposure to these substances. Nonetheless, exposure to silica dust can cause silicosis, a non-cancerous lung disease. Silicosis gradually reduces lung capacity and efficiency and can result in serious breathing difficulty. Some scientists believe other types of non-asbestos fibers, when inhaled, can cause similar diseases of the lung. In addition, silica dust and ceramic fiber dust are known to the State of California to cause lung cancer. U.S. and international agencies have also determined that dust from mineral wool, ceramic fibers and silica are potential causes of cancer.
Accordingly, workers must use caution to avoid creating and breathing dust when servicing brakes. Specific recommended work practices for reducing exposure to non-asbestos dust follow. Consult your employer for more details.
Recommended Work Practices1. Separate Work Areas. Whenever feasible, service brakes in a separate area away from other operations to reduce risks to unprotected persons.
2. Respiratory Protection. OSHA has set a maximum allowable level of exposure for silica of 0.1 mg/m3 as an 8-hour time-weighted average. Some manufacturers of non-asbestos brake linings recommend that exposures to other ingredients found in non-asbestos brake linings be kept below 1.0 f/cc as an 8-hour time-weighted average. Scientists disagree, however, to what extent adherence to these maximum allowable exposure levels will eliminate the risk of disease that can result from inhaling non-asbestos dust.
Therefore, wear respiratory protection at all times during brake servicing, beginning with the removal of the wheels. Wear a respirator equipped with a high-efficiency (HEPA) filter approved by NIOSH or MSHA, if the exposure levels may exceed OSHA or manufacturers’ recommended maximum levels. Even when exposures are expected to be within the maximum allowable levels, wearing such a respirator at all times during brake servicing will help minimize exposure.
3. Procedures for Servicing Brakes.
a. Enclose the brake assembly within a negative pressure enclosure. The enclosure should be equipped with a HEPA vacuum and worker arm sleeves. With the enclosure in place, use the HEPA vacuum to loosen and vacuum residue from the brake parts.
b. As an alternative procedure, use a catch basin with water and a biodegradable, non-phosphate, water-based detergent to wash the brake drum or rotor and other brake parts. The solution should be applied with low pressure to prevent dust from becoming airborne. Allow the solution to flow between the brake drum and the brake support or the brake rotor and caliper. The wheel hub and brake assembly components should be thoroughly wetted to suppress dust before the brake shoes or brake pads are removed. Wipe the brake parts clean with a cloth.
c. If an enclosed vacuum system or brake washing equipment is not available, carefully clean the brake parts in the open air. Wet the parts with a solution applied with a pump-spray bottle that creates a fine mist. Use a solution containing water, and, if available, a biodegradable, non-phosphate, water-based detergent. The wheel hub and brake assembly components should be thoroughly wetted to suppress dust before the brake shoes or brake pads are removed. Wipe the brake parts clean with a cloth.
d. Wear a respirator equipped with a HEPA filter approved by NIOSH or MSHA when grinding or machining brake linings. In addition, do such work in an area with a local exhaust ventilation system equipped with a HEPA filter.
e. NEVER use compressed air by itself, dry brushing, or a vacuum not equipped with a HEPA filter when cleaning brake parts or assemblies. NEVER use carcinogenic solvents, flammable solvents, or solvents that can damage brake components as wetting agents.
4. Cleaning Work Areas. Clean work areas with a vacuum equipped with a HEPA filter or by wet wiping. NEVER use compressed air or dry sweeping to clean work areas. When you empty vacuum cleaners and handle used rags, wear a respirator equipped with a HEPA filter approved by NIOSH or MSHA, to minimize exposure. When you replace a HEPA filter, wet the filter with a fine mist of water and dispose of the used filter with care.
5. Worker Clean-Up. After servicing brakes, wash your hands before you eat, drink or smoke. Shower after work. Do not wear work clothes home. Use a vacuum equipped with a HEPA filter to vacuum work clothes after they are worn. Launder them separately. Do not shake or use compressed air to remove dust from work clothes.
6. Waste Disposal. Dispose of discarded linings, used rags, cloths and HEPA filters with care, such as in sealed plastic bags. Consult applicable EPA, state and local regulations on waste disposal.
Regulatory GuidanceReferences to OSHA, NIOSH, MSHA, and EPA, which are regulatory agencies in the United States, are made to provide further guidance to employers and workers employed within the United States. Employers and workers employed outside of the United States should consult the regulations that apply to them for further guidance.
1 Introduction
1WABCO Maintenance Manual MM-1719 (Revised 08-18)
1 IntroductionContentsThis manual contains service information for the following systems.
� WABCO mBSPTM anti-lock braking system (ABS)
� Automatic traction control (ATC)
� Electronic stability control (ESC) for trucks, tractors and buses
The ABS version is marked on the ECU. Figure 1.1. If you cannot identify the ECU version installed on your vehicle, contact WABCO North America Customer Care at 855-228-3203.
Figure 1.1
Anti-Lock Braking System (ABS)ABS is a system designed to provide and maintain the best possible traction and steering control during an extreme braking event. During a potential wheel lock event, the ABS ECU, using information provided by the wheel speed sensors, sends a signal(s) to the appropriate modulator valve(s) to hold, apply or release the brakes as needed. ABS works automatically. The driver does not have to select this feature.
System Components
Electronic Control Unit (ECU)The ECU is the control center or “brain” of the ABS, ATC and ESC systems. It receives information from the sensors and CAN data link, processes data and sends signals to modulators and active braking valves to achieve different tasks.
Wheel Speed Sensing SystemsWheel speed sensing systems consist of a tooth wheel mounted on the hub or rotor of each monitored wheel and a speed sensor installed with its end against the tooth wheel. The sensor continuously sends wheel speed information to the ECU. A sensor clip holds the sensor in place and against the tooth wheel. Figure 1.2.
Figure 1.2
Pressure Modulator ValvesA modulator valve controls air pressure to an affected wheel-end brake during an ABS or ESC event to reduce speed and prevent wheel lock-up. Modulator valves are also used during ATC events to correctly gain traction on the affected wheel end.
A modulator valve is usually located on a frame rail or cross member near the brake chamber or as part of a valve package. A valve package combines two modulator valves, a service relay or quick release valve, and depending on the vehicle configuration, an active braking valve (ABV). Figure 1.3, Figure 1.4, Figure 1.5 and Figure 1.6.
Figure 1.1
4013279a
Figure 1.2
1002009bSENSOR
CLIP
SENSOR
TOOTHWHEEL
1 Introduction
2 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 1.3
Figure 1.4
Figure 1.5
Figure 1.6
Active Braking Valves (ABV)Two active braking valves (ABV), sometimes referred to as 3/2 valve, are solenoid valves which are integrated into the valve packages and are used to produce active braking during ATC or ESC events. Depending on the mBSPTM system configuration, ABVs can be located in the front axle braking system and rear axle braking system.
Figure 1.3
Figure 1.4
4013097a
FRONT AXLE VALVE PACKAGEPART NUMBER 976 200 100 0 AND 976 200 101 0
4013100a
REAR VALVE PACKAGEPART NUMBERS 976 000 120 0, 976 000 107 0
AND 976 000 112 0
Figure 1.5
Figure 1.6
4013101a
REAR VALVE PACKAGEPART NUMBERS 976 000 121 0, 976 000 103 0,
976 000 105 0 AND 976 000 110 0
4013102a
SOLENOID MODULATOR VALVEPART NUMBER 472 196 025 0
1 Introduction
3WABCO Maintenance Manual MM-1719 (Revised 08-18)
Foot Brake Valve (FBV)The foot brake valve (FBV) is part of the mBSPTM brake system. It provides the system with the driver’s brake demand. The FBV generates the electrical and pneumatic signals required for the control of a pneumatic braking system. Normally, the FBV is actuated by a foot pedal assembly. Figure 1.7.
Figure 1.7
Steering Angle Sensor (SAS)The SAS is part of the mBSPTM ESC system. The SAS delivers the driver’s steering input (steering wheel position) to the ECU using the vehicle chassis CAN communication data link. The SAS is provided by the vehicle manufacturer.
Electronic Stability Control (ESC) ModuleThe ESC module is part of the mBSPTM ESC system. It measures the vehicle yaw rate as well as vehicle lateral acceleration. It exchanges data with the ECU via the ESC system internal data link. The ECU supplies the module with voltage and ground. The ESC module must be initialized by diagnostic tools whenever the ECU or the ESC module is replaced. Figure 1.8.
Figure 1.8
Trailer Modulator ValveFor some stability control applications, an additional modulator valve (the same as what is used for ABS modulation) will be located in the trailer control line downstream of the front axle ABV which is also used to control the trailer.
Off-Road ABS SwitchOn some vehicles, an off-road ABS switch can be included. The off-road ABS function improves vehicle control and helps reduce stopping distances in off-road conditions or on poor traction surfaces such as loose gravel, sand and dirt.
ATC SwitchA vehicle manufacturer might offer an ATC switch to control the ATC function. The ATC switch can be configured to momentarily disable ATC.
Figure 1.7
4013104a
FOOT BRAKE VALVE DIGITALPART NUMBER 461 333 008 0
Figure 1.8
4013106a
ESC 6 MODULEPART NUMBER 446 065 080 0
2 Stability and Safety Enhancement Systems
4 WABCO Maintenance Manual MM-1719 (Revised 08-18)
2 Stability and Safety Enhancement SystemsAutomatic Traction Control (ATC)ATC is available as an option with mBSPTM ECUs and is standard on most. ATC helps improve traction in low traction road conditions. ATC reduces the potential of jackknifing caused by excessive wheel spin during acceleration or in curves.
ATC ComponentsATC uses the base ABS components plus an active braking valve that can be installed with individual modulator valves, or installed as part of the rear valve package.
When installed with individual modulator valves, the active braking valve is mounted on the frame or cross member, near the rear of the vehicle.
When it is part of the rear valve package, the active braking valve is attached to the relay valve.
ATC SwitchIf the vehicle manufacturer offers an ATC switch to control the ATC functionality, the switch can be configured as an ATC momentary override option. This function allows the driver to momentarily disable/override ATC for the duration of the ignition cycle.
Electronic Stability Control (ESC)Electronic Stability Control (ESC) combines the rollover prevention with directional stability in order to keep the vehicle traveling on its intended path by providing spinout and drift out control. ESC is automatic. It becomes active when the system senses imminent directional or roll instabilities, often before the driver is aware. You will notice a difference in the vehicle when stability control is functioning, but you should continue to drive as normal and provide any additional needed corrections. You may again notice a reduction in engine torque and additional deceleration from the retarder, if so equipped. You also may notice individual or all brakes applying depending on whether the vehicle is in a roll or directional control event.
ESC ComponentsESC is built from the ABS platform and uses many of the same components as ATC. An active braking valve to control the front axle brakes and trailer, a foot brake valve, an ESC module and a Steering Angle Sensor (SAS) are required.
The ESC ECU contains parameter settings which are specific to a vehicle configuration validated by WABCO Engineering. It is imperative that the correct ECU is installed on your vehicle in service. Contact WABCO or your respective vehicle OEM with any questions regarding ESC ECU.
Hill Start Aid (HSA)HSA supports select automated manual transmissions in reducing/totally eliminating the rolling back of the vehicle while launching on a grade. When requested from the transmission, HSA holds pressure in the service brakes of all axles of the towing vehicle when the vehicle is standing still. HSA will hold pressure for a maximum of three seconds following full release of the brake pedal.
HSA ComponentsHSA is available with the mBSPTM brake system. Same as ESC, HSA is built from the ABS platform and uses many of the same components as ATC and ESC. HSA uses the front axle active braking valve as well as the rear active braking valve to help maintain the pressure trapped during HSA activation.
The foot brake valve provides the system with the driver’s brake demand. The measured pressure is used by HSA to set the trapped pressure and/or activate the HSA function. The vehicle manufacturer can provide an HSA switch multiplexed through the dashboard or hard wired for momentary HSA deactivation.
Drag Torque ControlThe ABS ECU has the ability to send a message to the engine to increase engine RPM to prevent drive axle lock-up, if the vehicle is on a downhill grade and in the incorrect gear.
3 Diagnostics, Troubleshooting and Testing
5WABCO Maintenance Manual MM-1719 (Revised 08-18)
3 Diagnostics, Troubleshooting and TestingMaintenance InformationThere is no regularly scheduled maintenance required for the WABCO mBSPTM ABS, ATC or ESC systems. However, this does not change current vehicle maintenance requirements.
� Lamp Check: To ensure the ABS tractor lamp is operating, drivers should check the lamp every time the vehicle is started. When the vehicle is started, the ABS lamp should come on momentarily. If it does not come on, it could mean a burned-out bulb.
� ABS Wheel Speed Sensors: Check the wheel speed sensor adjustment and lubricate the sensor and sensor clip whenever wheel-end maintenance is performed. Use only WABCO- recommended lubricant.
TOOLBOX™ Software DiagnosticsFor complete instructions for installing and using TOOLBOX™ Software, refer to the User Manual posted on wabco-auto.com. WABCO TOOLBOX™ Software provides computer-based diagnostic capabilities for the complete range of WABCO Vehicle Control Systems. The program provides the following functions:
� Displays both static (e.g., ECU number) and dynamic (e.g., RPMs) information from the system under test.
� Displays both active and stored system faults, as well as the appropriate repair instructions.
� Activates system components to verify system integrity, correct component operation and installation wiring.
NOTE: For mBSPTM software versions, TOOLBOX™ 12.3 or higher is required.
To display ABS, ESC or HSA faults:
1. Connect the computer to the vehicle:
� Attach the USB/serial cable from your computer’s USB or serial port to the adapter.
� Attach the Deutsch diagnostic cable from the adapter to the vehicle. Figure 3.1.
Figure 3.1
2. Select the TOOLBOX™ Software icon from the desktop or from the Windows Start Menu to display the Main Menu.
3. Adapter Selection
Verify the TOOLBOX™ Software is set for the device and communication protocol that will be used.
To access “Adapter Selection” for TOOLBOX™ Software 11 or newer, click on “Utilities” from the main TOOLBOX™ screen. Figure 3.3.
Make sure the “Vendor:” and “Adapter:” drop-downs are set for the device being used and set the “Protocol:” drop-down to J1939 according to the system you will be communicating through, and click “OK”. Figure 3.2.
Figure 3.2
Figure 3.1
Figure 3.2
4010610a
TO VEHICLEDEUTSCH
CONNECTOR
USB ORSERIAL CABLE
ADAPTER
4013271a
3 Diagnostics, Troubleshooting and Testing
6 WABCO Maintenance Manual MM-1719 (Revised 08-18)
NOTE: When switching between J1939 and J1708 communications with TOOLBOX™ Software 11, the vehicle ignition must be cycled between sessions to correctly communicate with the ECU.
NOTE: TOOLBOX™ Software must be connected to the vehicle and the vehicle ignition must be ON in order to display information. If unable to communicate with the ECU:
� Verify device and data link connections are secure.
� Verify the device is RP1210A compliant and that the comport settings (Vendor, Protocol, Adapter) in TOOLBOX™ Software are correct.
� Verify the device software and firmware is up to date.
� Check all the powers and grounds coming to the ECU including load testing.
� Check VMM/chassis CAN circuit at the ECU and the data link connector.
4. Depending on the software version used, there will be two options to communicate with the vehicle:
� If using TOOLBOX™ 11 or higher and a vehicle with Software ECU E4.4b or higher, diagnostics over J1939 communications can be possible. Figure 3.3.
NOTE: mBSPTM software versions will only communicate over VMM/chassis CAN.
Figure 3.3
5. In the Main Menu, select Pneumatic ABS/ST Hydr J1939. The ABS Main Screen will appear. Figure 3.4.
Figure 3.4
6. Select Display from the top menu.
7. From the pull-down menu, select Diagnostic Trouble Codes. This will open the Fault Information screen. Figure 3.5 and Figure 3.6.
Figure 3.5
Figure 3.3
4013272a
WABCO TOOLBOX 12.3
Figure 3.4
Figure 3.5
4013273a
4010615a
3 Diagnostics, Troubleshooting and Testing
7WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 3.6
8. A description of the fault, the number of times the fault occurred, the system identifier (SID), the failure mode (FMI) and Suspect Parameter Number (SPN) are all displayed in the fault information window. Basic repair instructions for each fault are also provided. More detailed information about SID and FMI troubleshooting and repair is provided in the following section as well as the SID FMI table.
Double-clicking on the fault, or clicking on Details, will provide troubleshooting and detailed repair instructions. TOOLBOX™ Software version 11 also provides links to the appropriate system schematic which are also provided in this maintenance manual.
NOTE: If you are using TOOLBOX™ Software version 11, Internet Explorer is required to load files containing repair information, maintenance manual and schematics.
Faults that may occur after the screen is displayed will not appear until screen is manually updated. Use the Update button to refresh the fault information table.
After making the necessary repairs, use the clear faults button to clear the fault. Use the Update button to refresh the fault information table and display the new list of faults. Some faults may require vehicle ignition to be cycled and vehicle speed over 4 mph (6.4 kph) to clear them.
Use the Save or Print button to save or print the fault information data.
NOTE: If the TOOLBOX™ Software is unable to communicate with the ECU, verify the system is self-testing when the key is cycled.
If the system is not self-testing: Check all the powers and grounds connecting to the ECU including load testing.
If the system is self-testing: Check the following.
� Verify the ECU part number.
� Verify device and data link connections are secure.
� Verify the device is RP1210A compliant and that the comport settings (Vendor, Protocol, Adapter) in TOOLBOX™ Software are correct.
� Verify the device software and firmware are up-to-date.
Testing
Wheel Speed Sensor Testing
Sensor Adjustment
� Push the sensor in until it contacts the tooth wheel.
� Do not pry or push sensors with sharp objects.
� Sensors will self-adjust during wheel rotation.
Electrical Checks
� Check wheel speed sensor by itself for resistance.
� Check ECU harness and sensor together for resistance.
� Verify no change in resistance or open circuit between sensor by itself and through harness.
� Check harness by itself for any shorts to battery and shorts to ground.
� Measurements should read as follows:
Figure 3.6
4010616a
Location Measurement
Between sensor leads 900-2000 ohm
At ECU harness pins with sensor connected
Same as above, no more than 1 ohm difference
ECU harness by itself for DC voltage or ground
No continuity
Sensor output voltage At least 0.2 volt AC at 30 rpm
3 Diagnostics, Troubleshooting and Testing
8 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 3.7
Table A: X1 Harness Connector
Table B: X2 Harness Connector
Figure 3.7
36 35 34 33 32 31 30 29 28
27 26 25 24 23 22 21 20 19
18 17 16 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1
18 17 16 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1
X1 X2 X3
36 35 34 33 32 31 30 29 28
27 26 25 24 23 22 21 20 19
18 17 16 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1
25 24 23 22 21 20 19
4013121a
mBSPTM ECULOOKING INTO WIRE HARNESS CONNECTORS
Pin Name Function
X1.1 WSS-FAL-L WSS Front Axle left low
X1.2 WSS-FAL-H WSS Front Axle left high
X1.3 ABS-FAL-IV ABS Valve FA left IV
X1.4 ABS-FAL-GND ABS Valve FA left GND
X1.5 ABS-FAL-OV ABS Valve FA left OV
X1.6 SYS-1A-GND ESCM Ground
X1.7 SYS-1A-UB ESCM Power Supply
X1.8 SYS-1A-CANL ESCM CAN-Low
X1.9 SYS-1A-CANH ESCM CAN-High
X1.10 WSS-FAR-L WSS Front Axle right low
X1.11 WSS-FAR-H WSS Front Axle right high
X1.12 ABS-FAR-IV ABS Valve FA right IV
X1.13 ABS-FAR-GND ABS Valve FA right GND
X1.14 ABS-FAR-OV ABS Valve FA right OV
X1.15 FA-ABV [ABV FA] *3
X1.16 FA-ABV-GND [ABV FA GND] *3
X1.17
X1.18
X1.19 WSS-DAL-L WSS Drive Axle left low
X1.20 WSS-DAL-H WSS Drive Axle left high
X1.21 ABS-DAL-IV ABS Valve DA left IV
X1.22 ABS-DAL-GND ABS Valve DA left GND
X1.23 ABS-DAL-OV ABS Valve DA left OV
X1.24 DA-ABV [ABV DA] *3
X1.25 DA-ABV-GND [DAL DA GND] *3
X1.26 TRV-GND [ABV Trailer GND] *3
X1.27 TRV [ABV Trailer] *3
X1.28 WSS-DAR-L WSS Drive Axle right low
X1.29 WSS-DAR-H WSS Drive Axle right high
X1.30 ABS-DAR-IV ABS Valve DA right IV
X1.31 ABS-DAR-GND ABS Valve DA right GND
X1.32 ABS-DAR-OV ABS Valve DA right OV
X1.33 AUX-3 [Trailer Modulator IV] *3
X1.34 AUX-3-GND [Trailer Modulator GND] *3
X1.35 AUX-4-GND [Trailer Modulator GND] *3
X1.36 AUX-4 [Trailer Modulator OV] *3
Pin Name Function
X2.1 VEH-CANL VMM/Chassis CAN Low
X2.2 VEH-CANSH VMM/Chassis CAN Shield
X2.3 VEH-CANH VMM/Chassis CAN High
X2.4 FBV-UB Foot Brake Valve Power Supply
X2.5 FBV-PW1 Foot Brake Valve PWM Signal 1
X2.6
X2.7
X2.8
X2.9
Pin Name Function
3 Diagnostics, Troubleshooting and Testing
9WABCO Maintenance Manual MM-1719 (Revised 08-18)
Table C: X3 Harness Connector
Modulator Valve Testing
Electrical Checks
� Check modulator valve by itself for resistance.
� Check ECU harness and modulator valve together for resistance. Figure 3.7.
� Verify no change in resistance or open circuit between valve by itself and through harness.
� Check harness by itself for any shorts to battery and shorts to ground.
� Measurements should read as follows:
X2.10
X2.11
X2.12 ALG1-S Analog 1 Signal
X2.13 FBV-GND Foot Brake Valve Ground
X2.14 FBV-PW2 Foot Brake Valve PWM Signal 2
X2.15
X2.16
X2.17
X2.18
X2.19 TRM-30A Ubat/Terminal 30A
X2.20 TRM-30B Ubat/Terminal 30B
X2.21
X2.22
X2.23 TRM-31A GND/Terminal 31A
X2.24 TRM-31B GND/Terminal 31B
X2.25
Pin Name Function
X3.1 WSS-IAL-L WSS Intermediate Axle left low
X3.2 WSS-IAL-H WSS Intermediate Axle left high
X3.3 ABS-IAL-IV ABS Valve IA left IV
X3.4 ABS-IAL-GND ABS Valve IA left GND
X3.5 ABS-IAL-OV ABS Valve IA left OV
X3.6 AUX-1 [Diff-Lock] *3
X3.7
X3.8
X3.9
X3.10 WSS-IAR-L WSS Int. Axle right low
X3.11 WSS-IAR-H WSS Int. Axle right high
X3.12 ABS-IAR-IV ABS Valve IA right IV
X3.13 ABS-IAR-GND ABS Valve IA right GND
X3.14 ABS-IAR-OV ABS Valve IA right OV
X3.15 AUX-1-GND [Dif-Lock GND] *3
X3.16
X3.17
Pin Name Function
X3.18
X3.19 AUX-5 [3/2-Valve Governor] *3
X3.20 AUX-5-GND [3/2-Valve Governor GND] *3
X3.21 AUX-6-GND [3/2-Valve Regeneration GND] *3
X3.22 AUX-6 [3/2-Valve Regeneration] *3
X3.23 AUX-2 [TC-Lock] *3
X3.24 AUX-2-GND [TC-Lock GND] *3
X3.25
X3.26
X3.27
X3.28
X3.29
X3.30
X3.31
X3.32
X3.33
X3.34
X3.35
X3.36
Location Measurement
Inlet valve pin to Ground 4.0-9.0 ohm for 12V system
Outlet valve pin to Ground 4.0-9.0 ohm for 12V system
At ECU harness pins with modulator valve connected
4.0-9.0 ohm for 12V system, no more than 1 ohm difference
Pin Name Function
3 Diagnostics, Troubleshooting and Testing
10 WABCO Maintenance Manual MM-1719 (Revised 08-18)
ABV Testing
Electrical Checks
� Check ABV 3/2 solenoid by itself for resistance.
� Check ECU harness and ABV 3/2 solenoid together for resistance. Figure 3.7.
� Verify no change in resistance or open circuit between ABV by itself and through harness.
� Check harness by itself for any shorts to battery and shorts to ground.
� Measurements should read as follows:
ESC CAN Network TestingThe ECU and ESC module are all connected on propriety CAN network with internal terminating resistors on each one of these components. A failure to one of the components will cause others to fault out.
ESC Module Testing
Electrical Checks
For the following checks, all of the ECU connectors must be plugged in. The ECU provides voltage, ground and CAN communication to ESC module.
� Take measurements at the ESC module harness connector.
� Measure voltage supply Key ON.
� Measure CAN High voltage Key ON.
� Measure CAN Low voltage Key ON.
� Measure terminating resistance across CAN High and Low with Key OFF.
With ECU and ESC Module disconnected:
� Verify continuity end to end on each line
� Verify no shorts to ground or battery on all lines.
� Verify no continuity between pins.
Measurements should read as follows:
ESC Module MountingThe ESC module contains sensors which measure both lateral acceleration and yaw rate. Thus, it is critical that the module is securely mounted, leveled and in correct location to the vehicle and that the module is mounted as expected by the ECU and as per vehicle OEM specifications.
The module should be installed in a manner where the label is right side up. The module must be mounted perpendicular to the vehicle frame rails on a cross member or cross member bracket. The module connector could be facing the front or rear of the vehicle depending on the OEM’s specified mounting. It is critical that the unit be mounted in the exact location and manner as originally installed by the vehicle manufacturer.
SAS TestingContact the OEM for electrical checks and all troubleshooting.
ECU harness by itself for battery voltage or ground
No continuity
Location Measurement
ABV Supply to ABV Common 7.0-14.0 ohm for 12V system
At ECU harness pins with ABV connected
7.0-14.0 ohm for 12V system, no more than 1 ohm difference
ECU harness by itself for battery voltage or ground
No continuity
Location Measurement
Circuit Measurement
Voltage Supply to Chassis Ground 8.0-16.0V
ESC Ground to Chassis Ground Less than 1 ohm resistance
Terminating Resistance between ESC CAN-High to ESC CAN-Low
Approximately 180 ohms
With ECU disconnected, check CAN lines, power supply and ground for battery voltage or ground.
No continuity
CAN High Voltage 2.5-5.0V
CAN Low Voltage 0.1-2.4V
4 Wiring Diagrams and Connectors
11WABCO Maintenance Manual MM-1719 (Revised 08-18)
4 Wiring Diagrams and ConnectorsmBSPTM ABS ECU Wiring Diagram
Figure 4.1
Figure 4.1
4013112a
X2.8X2.6
X2.25X2.19
>2.5 MM3
F1
F2
FBV-UBFBV-GNDFBV-PW1FBV-PW2
SYS-1A-GNDSYS-1A-UB
SYS-1A-CANLSYS-1A-CANH
TRAILER MODULATOR-IV
TRAILER MODULATOR-GND
TRAILER MODULATOR-OV
TRAILER MODULATOR-GND
AUX-EAUX-E-GND
AUX-FAUX-F-GND
ABS-VALVE IA LEFT-IVABS-VALVE IA LEFT-GND
ABS-VALVE IA LEFT-OV
WSS-INTERMEDIATE AXLE LEFT-LWSS-INTERMEDIATE AXLE LEFT-H
WSS-INTERMEDIATE AXLE RIGHT-LWSS-INTERMEDIATE AXLE RIGHT-H
ABS-VALVE IA RIGHT-IVABS-VALVE IA RIGHT-GND
ABS-VALVE IA RIGHT-OV
ABS-VALVE DA LEFT-IVABS-VALVE DA LEFT-GNDABS-VALVE DA LEFT-OV
ABS-VALVE FA LEFT-IVABS-VALVE FA LEFT-GNDABS-VALVE FA LEFT-OV
VEH-CANLVEH-CANSHVEH-CANH
GND/TERMINAL-31AGND/TERMINAL-31B
UBAT/TERMINAL-30A
UBAT/TERMINAL-30B
WSS-DRIVE AXLE LEFT-LWSS-DRIVE AXLE LEFT-H
WSS-DRIVE AXLE RIGHT-LWSS-DRIVE AXLE RIGHT-H
WSS-FRONT AXLE LEFT-LWSS-FRONT AXLE LEFT-H
WSS-FRONT AXLE RIGHT-LWSS-FRONT AXLE RIGHT-H
ABS-VALVE DA RIGHT-IVABS-VALVE DA RIGHT-GNDABS-VALVE DA RIGHT-OV
ABS-VALVE FA RIGHT-IVABS-VALVE FA RIGHT-GNDABS-VALVE FA RIGHT-OV
ABV-DRIVE AXLEABV-DRIVE AXLE-GND
ABV-FRONT AXLEABV-FRONT AXLE-GND
FBVwith
2 Stroke
Sensors
ESCModule
X2.10X2.11
X2.20
X2.23
X2.24X2.1X2.2X2.3
X2.4X2.13X2.5X2.14
X2.12
X1.6X1.7X1.8X1.9
X1.33X1.34
X1.36X1.35
X1.27X1.26
X3.19
X3.20
X3.22
X3.21
X3.6
X3.15
X3.23
X3.24
X3.3
X3.4
X3.5
TWISTED
TWISTED
TWISTED
TWISTED
TWISTED
TWISTED
X1.3
X1.4
X1.5
X1.1
X1.2
X1.15
X1.16
X1.17
X1.18
X1.24
X1.25
X1.19
X1.20
X1.21
X1.22
X1.23
X1.10
X1.11
X1.12
X1.13
X1.14
X1.28
X1.29
X1.30
X1.31
X1.32
X3.1
X3.2
X3.10
X3.11
X3.12
X3.13
X3.14
>2.5 MM3
>2.5 MM2
>2.5 MM2
4 Wiring Diagrams and Connectors
12 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Harness Connectors
Figure 4.2
Figure 4.2
X1 X2 X3
CONNECTOR
X1
X2
X3
NUMBER OF PINS
2 X 18
18 + 7
2 X 18
CONNECTOR TYPE
C-114-18664, CODING A REV. F2
C-114-18721, CODING A REV. A1
C-114-18664, CODING B REV. F2 4013131a
4 Wiring Diagrams and Connectors
13WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 4.3
Figure 4.4
Figure 4.3
4013108a
ELECTRICAL PORT
X1.1
X1.2
X1.3
X2.1
X2.2
X2.3
X3.1
X3.3
UNIT FUNCTION
GROUND
INLET
OUTLET
GROUND
INLET
OUTLET
GROUND
INLET
TYPE
TYCO HDSCS 3X2.8 CODING AABS CONNECTOR LEFT
X1
ABS CONNECTOR RIGHTX2
ACTIVE BRAKING VALVE CONNECTORX3
TYCO HDSCS 3X2.8 CODING B
TYCO HDSCS 2X1.5 CODING A
3
X1.3
X1.1
X1.2
X1
REAR AXLE VALVE PACKAGE HARNESS CONNECTORS
2
1
3
X2.3
X2.1
X2.2
X2
2
1
X3.3
X3.1
X3
Figure 4.4
4013098a
X1.3
3/2 SOLENOIDVALVE CONNECTOR
X1
ELECTRICALPORT
X1.1
X1.1
X1.3
GROUND
INLET
FUNCTION
FRONT AXLE VALVE PACKAGE HARNESS CONNECTORCONNECTOR TYCO HDSCS 2 X 1.5 CODING A
4 Wiring Diagrams and Connectors
14 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 4.5
Figure 4.6
Figure 4.7
Figure 4.5
4013108a
ELECTRICAL PORT
X1.1
X1.2
X1.3
X2.1
X2.2
X2.3
X3.1
X3.3
UNIT FUNCTION
GROUND
INLET
OUTLET
GROUND
INLET
OUTLET
GROUND
INLET
TYPE
TYCO HDSCS 3X2.8 CODING AABS CONNECTOR LEFT
X1
ABS CONNECTOR RIGHTX2
ACTIVE BRAKING VALVE CONNECTORX3
TYCO HDSCS 3X2.8 CODING B
TYCO HDSCS 2X1.5 CODING A
3
X1.3
X1.1
X1.2
X1
REAR AXLE VALVE PACKAGE HARNESS CONNECTORS
2
1
3
X2.3
X2.1
X2.2
X2
2
1
X3.3
X3.1
X3
Figure 4.6
4013103a
6.1
6.36.2
2 3
1
ABS MODULATOR VALVE HARNESS CONNECTORMAIN APPLICATION 3-POLE TYCO CONNECTORHDSCS 4 X 2.8
6.1: GND6.2: Inlet valve6.3: Outlet valve
Surface protectionof pins: Sn
Figure 4.7
4013105a
14 5 6 7
2 3
PIN ASSIGNMENT
PIN 1 = 6.1 Ground (OV)
PIN 2 = 6.2 Voltage supply
PIN 3 = not connected
PIN 4 = not connected
PIN 5 = 6.5 PWM Signal 1
PIN 6 = not connected
PIN 7 = 6.7 PWM Signal 2
PIN CROSS SECTION ABBREVIATION FUNCTION
1 2.8 MM GND Common valve pin
2 2.8 MM Ub Voltage supply
3 not connected
4 1.5 MM not connected
5 1.5 MM PWM1 PWM signal 1
6 1.5 MM not connected
7 1.5 MM PWM2 PWM signal 2
FOOT BRAKE VALVE HARNESS CONNECTOR
4 Wiring Diagrams and Connectors
15WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 4.8
Figure 4.8
4013107a
1 234
Pin 1: GNDPin 2: Voltage SupplyPin 3: CAN HighPin 4: CAN Low
Surface protectionof pins: Sn
ELECTRONIC STABILITY CONTROL MODULEHARNESS CONNECTOR
5 SPN FMI Fault Codes
16 WABCO Maintenance Manual MM-1719 (Revised 08-18)
5 SPN FMI Fault CodesDTC SPN FMI TablesFigure 5.1
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
627
- 0
= P
ower
Sup
ply
- da
ta v
alid
, but
abo
ve
norm
al o
pera
ting
rang
e (m
ost s
ever
e le
vel)
Sys
tem
Ove
rvol
tage
(30
A)
(30B
)A
n ov
ervo
ltage
at t
erm
inal
30A
/30B
is d
etec
ted
if th
e vo
ltage
is
abov
e 16
V fo
r lo
nger
than
125
0 m
s.T
he o
verv
olta
ge c
ondi
tion
is r
eset
if th
e vo
ltage
is 1
V lo
wer
th
an 1
6V.
• C
heck
the
volta
ge s
uppl
y of
the
vehi
cle.
(Is
the
batte
ry o
r vol
tage
go
vern
or d
efec
tive?
)
627
- 1
= P
ower
Sup
ply
- da
ta v
alid
, but
bel
ow
norm
al o
pera
ting
rang
e (m
ost s
ever
e le
vel)
Sys
tem
Und
ervo
ltage
(30
A)
(30B
)A
n un
derv
olta
ge a
t ter
min
al 3
0A/3
0B is
det
ecte
d if
the
volta
ge
is b
elow
11V
for
long
er th
an 1
250
ms.
The
und
ervo
ltage
con
ditio
n is
res
et if
the
volta
ge is
1V
hig
her
than
11V
.T
he u
nder
volta
ge fa
ilure
will
not
be
disp
laye
d if
vehi
cle
stan
dstil
l is
dete
cted
.
• C
heck
the
volta
ge s
uppl
y of
the
vehi
cle.
(Is
the
batte
ry o
r vol
tage
go
vern
or d
efec
tive?
)
627
- 14
= P
ower
Sup
ply
- sp
ecia
l ins
truc
tions
Inte
rrup
tion
of G
roun
d (3
1B)
Thi
s fa
ilure
is d
etec
ted
afte
r 10
0 m
s if
term
inal
31A
is
conn
ecte
d, b
ut te
rmin
al 3
1B is
not
con
nect
ed.
• C
heck
the
elec
tric
sup
ply
line
‘term
inal
31b
’. (I
s it
brok
en?
Is th
ere
incr
ease
d el
ectr
ical
res
ista
nce?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
627
- 17
= P
ower
Sup
ply
- da
ta v
alid
, but
bel
ow
norm
al o
pera
ting
rang
e (le
ast s
ever
e le
vel)
Inte
rrup
tion
of T
erm
inal
(3
0A)
An
inte
rrup
tion
of te
rmin
al 3
0A is
det
ecte
d if
the
volta
ge a
t te
rmin
al 3
0A is
sig
nific
antly
low
er th
an a
t ter
min
al 3
0B (
filte
red
valu
e 30
A <
70%
of 3
0B)
for
mor
e th
an 1
00 m
s.
• C
heck
if th
e re
leva
nt fu
se a
t ter
min
al 3
0a is
blo
wn.
• C
heck
the
elec
tric
sup
ply
line
‘term
inal
30a
’. (I
s it
brok
en?
Is th
ere
incr
ease
d el
ectr
ic r
esis
tanc
e?)
• C
heck
the
term
inal
30a
line
for
othe
r vo
ltage
dro
ps.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
627
- 18
= P
ower
Sup
ply
- da
ta v
alid
, but
bel
ow
norm
al o
pera
ting
rang
e (m
oder
atel
y se
vere
leve
l)
Inte
rrup
tion
of T
erm
inal
(3
0B)
An
inte
rrup
tion
of te
rmin
al 3
0B is
det
ecte
d if
the
volta
ge a
t te
rmin
al 3
0B is
sig
nific
antly
low
er th
an a
t ter
min
al 3
0A (
filte
red
valu
e 30
B <
70%
of 3
0A)
for
mor
e th
an 1
00 m
s.
• C
heck
if th
e re
leva
nt fu
se a
t ter
min
al 3
0b is
blo
wn.
• C
heck
the
elec
tric
sup
ply
line
‘term
inal
30b
’. (I
s it
brok
en?
Is th
ere
incr
ease
d el
ectr
ic r
esis
tanc
e?)
• C
heck
the
term
inal
30b
line
for
othe
r vo
ltage
dro
ps.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
629
- 9
= C
ontr
olle
r #1
-
abno
rmal
upd
ate
rate
Saf
ety
Con
trol
ler
Com
mun
icat
ion
Faul
tyT
he c
omm
unic
atio
n be
twee
n m
ain
and
safe
ty c
ontr
olle
r is
fa
ulty
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
629
- 11
= C
ontr
olle
r #1
- fa
ilure
mod
e no
t id
entifi
able
/roo
t cau
se n
ot
know
n
Trap
Han
dler
/Tra
p S
etT
he tr
ap h
andl
er h
as d
etec
ted
a tra
p se
t.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
629
- 12
= C
ontr
olle
r #1
-
bad
inte
llige
nt d
evic
e or
co
mpo
nent
Pic
Wdc
/MC
Err
orT
he P
ic W
atch
dog
Con
trol
ler
has
dete
cted
an
MC
err
or.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
629
- 14
= C
ontr
olle
r #1
-
spec
ial i
nstr
uctio
nsW
atch
dog/
Res
et F
ailu
reT
he W
atch
dog
has
dete
cted
a R
eset
Fai
lure
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
639
- 12
= J1
939
Net
wor
k #1
, Prim
ary
Vehi
cle
Net
wor
k (p
revi
ousl
y S
AE
J1
939
Dat
a Li
nk)
- ba
d in
telli
gent
dev
ice
or
com
pone
nt
Bus
OffE
rror
on
VM
M-C
AN
A fa
ilure
is s
et if
a B
usO
ff co
nditi
on o
f the
CA
N-c
ontr
olle
r (v
ehic
le C
AN
dat
a lin
k) w
as d
etec
ted.
• C
heck
the
wiri
ng o
f the
cha
ssis
-CA
N d
ata
conn
ectio
n an
d th
e re
latin
g el
ectr
ic c
onne
ctor
s be
twee
n th
e m
ain
EC
U a
nd th
e ot
her
chas
sis-
CA
N E
CU
s.
701
- 3
= D
iff L
ock
- vo
ltage
abo
ve n
orm
al o
r sh
orte
d hi
gh
Failu
re d
etec
tion
'Sho
rtU
b'
at A
uxili
ary
Out
put (
Diff
Lo
ck)
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
701
- 4
= D
iff L
ock
- vo
ltage
bel
ow n
orm
al o
r sh
orte
d lo
w
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
uxili
ary
Out
put (
Diff
Lo
ck)
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in
activ
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
R
emar
k: A
sho
rted
load
als
o le
ads
to a
sho
rt to
GN
D fa
ilure
. A
shor
ted
load
is d
etec
ted:
-
Afte
r 20
0 m
s af
ter
igni
tion-
on a
nd a
lso
if va
lve
is a
ctiv
ated
.-
Afte
r 10
00 m
s if
valv
e is
not
act
ivat
ed.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
4013132a
5 SPN FMI Fault Codes
17WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.2
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
701
- 5
= D
iff L
ock
- cu
rren
t bel
ow n
orm
al o
r op
en c
ircui
t
Failu
re d
etec
tion
'Inte
rrup
tion'
at A
uxili
ary
Out
put (
Diff
Loc
k)
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
701
- 13
= D
iff L
ock
- ou
t of
cal
ibra
tion
Failu
re d
etec
tion
'Ove
rEqu
ippe
d' a
t Aux
iliar
y O
utpu
t (D
iff L
ock)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
702
- 3
= Tr
ansf
er C
ase
Lock
- v
olta
ge a
bove
no
rmal
or
shor
ted
high
Failu
re d
etec
tion
'Sho
rtU
b'
at A
uxili
ary
Out
put (
Tran
sfer
C
ase
Lock
)
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
702
- 4
= Tr
ansf
er C
ase
Lock
- v
olta
ge b
elow
no
rmal
or
shor
ted
low
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
uxili
ary
Out
put (
Tran
sfer
C
ase
Lock
)
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in
activ
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
Rem
ark:
A s
hort
ed lo
ad a
lso
lead
s to
a s
hort
to G
ND
failu
re. A
sh
orte
d lo
ad is
det
ecte
d:
- A
fter
200
ms
afte
r ig
nitio
n-on
and
als
o if
valv
e is
act
ivat
ed.
- A
fter
1000
ms
if va
lve
is n
ot a
ctiv
ated
.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
702
- 5
= Tr
ansf
er C
ase
Lock
- c
urre
nt b
elow
no
rmal
or
open
circ
uit
Failu
re d
etec
tion
'Inte
rrup
tion'
at A
uxili
ary
Out
put (
Tran
sfer
Cas
e Lo
ck)
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
702
- 13
= T
rans
fer
Cas
e Lo
ck -
out
of c
alib
ratio
nFa
ilure
det
ectio
n 'O
verE
quip
ped'
at A
uxili
ary
Out
put (
Tran
sfer
Cas
e Lo
ck)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
703
- 3
= Tr
aile
r M
odul
ator
IV -
vol
tage
ab
ove
norm
al o
r sh
orte
d hi
gh
Failu
re d
etec
tion
'Sho
rtU
b'
at A
uxili
ary
Out
put (
Trai
ler
Mod
ulat
or IV
)
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
703
- 4
= Tr
aile
r M
odul
ator
IV -
vol
tage
be
low
nor
mal
or
shor
ted
low
Failu
re d
etec
tion
‘Sho
rtG
nd’
at A
uxili
ary
Out
put (
Pos
ition
A
)
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in
activ
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
Rem
ark:
A s
hort
ed lo
ad a
lso
lead
s to
a s
hort
to G
ND
failu
re. A
sh
orte
d lo
ad is
det
ecte
d:
- A
fter
200
ms
afte
r ig
nitio
n-on
and
als
o if
valv
e is
act
ivat
ed.
- A
fter
1000
ms
if va
lve
is n
ot a
ctiv
ated
.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
703
- 5
= Tr
aile
r M
odul
ator
IV -
cur
rent
be
low
nor
mal
or
open
ci
rcui
t
Failu
re d
etec
tion
'Inte
rrup
tion'
at A
uxili
ary
Out
put (
Trai
ler
Mod
ulat
or
IV)
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
703
- 13
= T
raile
r M
odul
ator
IV -
out
of
calib
ratio
n
Failu
re d
etec
tion
'Ove
rEqu
ippe
d' a
t Aux
iliar
y O
utpu
t (Tr
aile
r M
odul
ator
IV
)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
704
- 3
= Tr
aile
r M
odul
ator
OV
- v
olta
ge
abov
e no
rmal
or
shor
ted
high
Failu
re d
etec
tion
'Sho
rtU
b'
at A
uxili
ary
Out
put (
Trai
ler
Mod
ulat
or O
V)
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
4013133a
5 SPN FMI Fault Codes
18 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.3
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
704
- 4
= Tr
aile
r M
odul
ator
OV
- v
olta
ge
belo
w n
orm
al o
r sh
orte
d lo
w
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
uxili
ary
Out
put (
Trai
ler
Mod
ulat
or O
V)
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in
activ
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
Rem
ark:
A s
hort
ed lo
ad a
lso
lead
s to
a s
hort
to G
ND
failu
re. A
sh
orte
d lo
ad is
det
ecte
d:
- A
fter
200
ms
afte
r ig
nitio
n-on
and
als
o if
valv
e is
act
ivat
ed.
- A
fter
1000
ms
if va
lve
is n
ot a
ctiv
ated
.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
704
- 5
= Tr
aile
r M
odul
ator
OV
- c
urre
nt
belo
w n
orm
al o
r op
en
circ
uit
Failu
re d
etec
tion
'Inte
rrup
tion'
at A
uxili
ary
Out
put (
Trai
ler
Mod
ulat
or
OV
)
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
704
- 13
= T
raile
r M
odul
ator
OV
- o
ut o
f ca
libra
tion
Failu
re d
etec
tion
'Ove
rEqu
ippe
d' a
t Aux
iliar
y O
utpu
t (Tr
aile
r M
odul
ator
O
V)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
705
- 3
= 3/
2 Va
lve
Gov
erno
r -
volta
ge a
bove
no
rmal
or
shor
ted
high
Failu
re d
etec
tion
'Sho
rtU
b'
at A
uxili
ary
Out
put (
3/2
Valv
e G
over
nor)
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
705
- 4
= 3/
2 Va
lve
Gov
erno
r -
volta
ge b
elow
no
rmal
or
shor
ted
low
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
uxili
ary
Out
put (
3/2
Valv
e G
over
nor)
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in
activ
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
Rem
ark:
A s
hort
ed lo
ad a
lso
lead
s to
a s
hort
to G
ND
failu
re. A
sh
orte
d lo
ad is
det
ecte
d:
- A
fter
200
ms
afte
r ig
nitio
n-on
and
als
o if
valv
e is
act
ivat
ed.
- A
fter
1000
ms
if va
lve
is n
ot a
ctiv
ated
.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
705
- 5
= 3/
2 Va
lve
Gov
erno
r -
curr
ent b
elow
no
rmal
or
open
circ
uit
Failu
re d
etec
tion
'Inte
rrup
tion'
at A
uxili
ary
Out
put (
3/2
Valv
e G
over
nor)
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
705
- 13
= 3
/2 V
alve
G
over
nor
- ou
t of
calib
ratio
n
Failu
re d
etec
tion
'Ove
rEqu
ippe
d' a
t Aux
iliar
y O
utpu
t (3/
2 Va
lve
Gov
erno
r)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
706
- 3
= 3/
2 Va
lve
Reg
ener
atio
n -
volta
ge
abov
e no
rmal
or
shor
ted
high
Failu
re d
etec
tion
'Sho
rtU
b'
at A
uxili
ary
Out
put (
3/2
Valv
e R
egen
erat
ion)
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
706
- 4
= 3/
2 Va
lve
Reg
ener
atio
n -
volta
ge
belo
w n
orm
al o
r sh
orte
d lo
w
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
uxili
ary
Out
put (
3/2
Valv
e R
egen
erat
ion)
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in
activ
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
Rem
ark:
A s
hort
ed lo
ad a
lso
lead
s to
a s
hort
to G
ND
failu
re. A
sh
orte
d lo
ad is
det
ecte
d:
- A
fter
200
ms
afte
r ig
nitio
n-on
and
als
o if
valv
e is
act
ivat
ed.
- A
fter
1000
ms
if va
lve
is n
ot a
ctiv
ated
.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
706
- 5
= 3/
2 Va
lve
Reg
ener
atio
n -
curr
ent
belo
w n
orm
al o
r op
en
circ
uit
Failu
re d
etec
tion
'Inte
rrup
tion'
at A
uxili
ary
Out
put (
3/2
Valv
e R
egen
erat
ion)
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
4013134a
5 SPN FMI Fault Codes
19WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.4D
TC S
PN
FM
IFa
ilure
Det
ectio
n N
ame
Failu
re D
etec
tion
Des
crip
tion
Rep
air
706
- 13
= 3
/2 V
alve
R
egen
erat
ion
- ou
t of
calib
ratio
n
Failu
re d
etec
tion
'Ove
rEqu
ippe
d' a
t A
uxili
ary
Out
put (
3/2
Valv
e R
egen
erat
ion)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
789
- 1
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Left)
-
data
val
id, b
ut b
elow
no
rmal
ope
ratio
n ra
nge
(mos
t sev
ere
leve
l)
AirG
ap F
ailu
re o
f Whe
el
Spe
ed S
enso
r (F
ront
Axl
e Le
ft)
An
air
gap
failu
re is
det
ecte
d if
the
volta
ge a
mpl
itude
is to
o lo
w
(dep
ends
on
sign
al fr
eque
ncy)
.•
Che
ck th
e re
leva
nt w
heel
spe
ed s
enso
r an
d its
fitti
ng. I
s th
e di
stan
ce b
etw
een
toot
h w
heel
and
sen
sor
(air
gap)
too
wid
e?•
Che
ck th
e w
heel
spe
ed s
enso
r fo
r co
rrec
t vol
tage
out
put.
(Is
volta
ge
outp
ut s
uffic
ient
?)•
If se
nsor
and
air
gap
are
corr
ect,
cont
act W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
789
- 3
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Left)
-
volta
ge a
bove
nor
mal
or
shor
ted
high
Sho
rt C
ircui
t to
UB
of
Whe
el S
peed
Sen
sor
(Fro
nt
Axl
e Le
ft)
A s
hort
circ
uit t
o U
B a
t the
whe
el s
peed
sen
sor
(IG
-H o
r IG
-L)
is d
etec
ted
afte
r 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
789
- 4
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Left)
-
volta
ge b
elow
nor
mal
or
shor
ted
low
Sho
rt C
ircui
t to
GN
D o
f W
heel
Spe
ed S
enso
r (F
ront
A
xle
Left)
A s
hort
circ
uit t
o G
ND
at t
he w
heel
spe
ed s
enso
r (I
G-H
or
IG-L
) is
det
ecte
d 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
789
- 5
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Left)
-
curr
ent b
elow
nor
mal
or
open
circ
uit
Inte
rrup
tion
of W
heel
S
peed
Sen
sor
(Fro
nt A
xle
Left)
An
inte
rrup
tion
(ope
n lo
ad)
at th
e w
heel
spe
ed s
enso
r (I
G-H
or
IG-L
) is
det
ecte
d af
ter
150
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
sen
sor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
789
- 6
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Left)
-
curr
ent a
bove
nor
mal
or
grou
nded
circ
uit
Sho
rted
Coi
l of W
heel
S
peed
Sen
sor
(Fro
nt A
xle
Left)
A s
hort
ed c
oil o
f the
whe
el s
peed
sen
sor
(<30
0 oh
m)
is
dete
cted
afte
r 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
789
- 7
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Left)
-
mec
hani
cal s
yste
m n
ot
resp
ondi
ng p
rope
rly o
r ou
t of a
djus
tmen
t
Pol
ewhe
el F
ailu
re o
f Whe
el
Spe
ed S
enso
r (F
ront
Axl
e Le
ft)
The
whe
el s
peed
det
ectio
n sh
all b
e ab
le to
det
ect i
nsuf
ficie
nt
and/
or m
issi
ng te
eth
defin
ed w
ithin
300
0 co
unts
of t
eeth
.•
Che
ck th
e re
leva
nt to
oth
whe
el. (
Is it
dam
aged
or
dirt
y?)
789
- 8
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Left)
-
abno
rmal
freq
uenc
y,
puls
e w
idth
or
perio
d
Whe
el S
peed
Sen
sor
Freq
uenc
y To
o H
igh
(Fro
nt
Axl
e Le
ft)
A fa
ilure
is d
etec
ted
if th
e w
heel
spe
ed s
igna
l fre
quen
cy is
>3
500
Hz.
• C
heck
whe
ther
ther
e ar
e in
adm
issi
ble
osci
llatio
n-ef
fect
s at
the
rele
vant
foun
datio
n br
ake.
• C
heck
whe
ther
ther
e ar
e in
adm
issi
ble
osci
llatio
n-ef
fect
s at
the
fittin
g of
the
rele
vant
whe
el s
peed
sen
sor.
• C
heck
the
isol
atio
n of
the
whe
el-s
peed
sen
sor
wiri
ng (
high
fr
eque
ncie
s m
ight
be
indu
ced)
.•
If th
e ot
her
effe
cts
wer
e al
read
y ch
ecke
d, c
onta
ct W
AB
CO
Nor
th
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
789
- 11
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Left)
- fa
ilure
mod
e no
t id
entifi
able
/roo
t cau
se n
ot
know
n
Pla
usib
ility
Che
ck o
f Whe
el
Spe
ed S
enso
r (F
ront
Axl
e Le
ft)
The
whe
el s
peed
det
ectio
n sh
all m
onito
r an
alog
inpu
t and
di
gita
l inp
ut o
f WA
BA
AS
IC a
nd c
ompa
re b
oth
sign
als
whe
ther
or
not
they
are
con
sist
ency
(pl
ausi
bilit
y ch
eck)
.
• C
heck
wiri
ng o
f rel
evan
t whe
el s
peed
sen
sor.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
789
- 13
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Left)
-
out o
f cal
ibra
tion
Failu
re D
etec
tion
'Ove
rEqu
ippe
d' o
f Whe
el
Spe
ed S
enso
r (F
ront
Axl
e Le
ft)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt w
heel
spe
ed
sens
or e
quip
ped?
)•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s E
CU
pin
ope
n?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
4013135a
5 SPN FMI Fault Codes
20 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.5
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
789
- 14
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Left)
-
spec
ial i
nstr
uctio
ns
Run
Out
Fai
lure
of W
heel
S
peed
Sen
sor
(Fro
nt A
xle
Left)
A R
unO
ut fa
ilure
will
be
dete
cted
if th
e ra
tio o
f min
/max
am
plitu
des
is to
o hi
gh.
• C
heck
the
rele
vant
toot
h w
heel
. (Is
it d
amag
ed?)
• C
heck
the
rele
vant
whe
el b
earin
g. (
Is it
loos
ened
?)
790
- 1
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Rig
ht)
- da
ta v
alid
, but
bel
ow
norm
al o
pera
tion
rang
e (m
ost s
ever
e le
vel)
AirG
ap F
ailu
re o
f Whe
el
Spe
ed S
enso
r (F
ront
Axl
e R
ight
)
An
air
gap
failu
re is
det
ecte
d if
the
volta
ge a
mpl
itude
is to
o lo
w
(dep
ends
on
sign
al fr
eque
ncy)
.•
Che
ck th
e re
leva
nt w
heel
spe
ed s
enso
r an
d its
fitti
ng. I
s th
e di
stan
ce b
etw
een
toot
h w
heel
and
sen
sor
(air
gap)
too
wid
e?•
Che
ck th
e w
heel
spe
ed s
enso
r fo
r co
rrec
t vol
tage
out
put.
(Is
volta
ge
outp
ut s
uffic
ient
?)•
If se
nsor
and
air
gap
are
corr
ect,
cont
act W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
790
- 3
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Rig
ht)
- vo
ltage
abo
ve n
orm
al o
r sh
orte
d hi
gh
Sho
rt C
ircui
t to
UB
of
Whe
el S
peed
Sen
sor
(Fro
nt
Axl
e R
ight
)
A s
hort
circ
uit t
o U
B a
t the
whe
el s
peed
sen
sor
(IG
-H o
r IG
-L)
is d
etec
ted
afte
r 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
790
- 4
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Rig
ht)
- vo
ltage
bel
ow n
orm
al o
r sh
orte
d lo
w
Sho
rt C
ircui
t to
GN
D o
f W
heel
Spe
ed S
enso
r (F
ront
A
xle
Rig
ht)
A s
hort
circ
uit t
o G
ND
at t
he w
heel
spe
ed s
enso
r (I
G-H
or
IG-L
) is
det
ecte
d af
ter
150
ms.
• C
heck
wiri
ng o
f rel
evan
t sen
sor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant s
enso
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
790
- 5
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Rig
ht)
- cu
rren
t bel
ow n
orm
al o
r op
en c
ircui
t
Inte
rrup
tion
of W
heel
S
peed
Sen
sor
(Fro
nt A
xle
Rig
ht)
An
inte
rrup
tion
(ope
n lo
ad)
at th
e w
heel
spe
ed s
enso
r (I
G-H
or
IG-L
) is
det
ecte
d af
ter
150
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
sen
sor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
790
- 6
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Rig
ht)
- cu
rren
t abo
ve n
orm
al o
r gr
ound
ed c
ircui
t
Sho
rted
Coi
l of W
heel
S
peed
Sen
sor
(Fro
nt A
xle
Rig
ht)
A s
hort
ed c
oil o
f the
whe
el s
peed
sen
sor
(<30
0 oh
m)
is
dete
cted
afte
r 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
790
- 7
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Rig
ht)
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Pol
ewhe
el F
ailu
re o
f Whe
el
Spe
ed S
enso
r (F
ront
Axl
e R
ight
)
The
whe
el s
peed
det
ectio
n sh
all b
e ab
le to
det
ect i
nsuf
ficie
nt
and/
or m
issi
ng te
eth
defin
ed w
ithin
300
0 co
unts
of t
eeth
.•
Che
ck th
e re
leva
nt to
oth
whe
el. (
Is it
dam
aged
or
dirt
y?)
790
- 8
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Rig
ht)
- ab
norm
al fr
eque
ncy,
pu
lse
wid
th o
r pe
riod
Whe
el S
peed
Sen
sor
Freq
uenc
y To
o H
igh
(Fro
nt
Axl
e R
ight
)
A fa
ilure
is d
etec
ted
if th
e w
heel
spe
ed s
igna
l fre
quen
cy is
>3
500
Hz.
• C
heck
whe
ther
ther
e ar
e in
adm
issi
ble
osci
llatio
n-ef
fect
s at
the
rele
vant
foun
datio
n br
ake.
• C
heck
whe
ther
ther
e ar
e in
adm
issi
ble
osci
llatio
n-ef
fect
s at
the
fittin
g of
the
rele
vant
whe
el s
peed
sen
sor.
• C
heck
the
isol
atio
n of
the
whe
el-s
peed
sen
sor
wiri
ng (
high
fr
eque
ncie
s m
ight
be
indu
ced)
.•
If th
e ot
her
effe
cts
wer
e al
read
y ch
ecke
d, c
onta
ct W
AB
CO
Nor
th
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
790
- 11
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Rig
ht)
- fa
ilure
mod
e no
t id
entifi
able
/roo
t cau
se n
ot
know
n
Pla
usib
ility
Che
ck o
f Whe
el
Spe
ed S
enso
r (F
ront
Axl
e R
ight
)
The
whe
el s
peed
det
ectio
n sh
all m
onito
r an
alog
inpu
t and
di
gita
l inp
ut o
f WA
BA
AS
IC a
nd c
ompa
re b
oth
sign
als
whe
ther
or
not
they
are
con
sist
ency
(pl
ausi
bilit
y ch
eck)
.
• C
heck
wiri
ng o
f rel
evan
t whe
el s
peed
sen
sor.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
790
- 13
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Rig
ht)
- ou
t of c
alib
ratio
n
Failu
re D
etec
tion
'Ove
rEqu
ippe
d' o
f Whe
el
Spe
ed S
enso
r (F
ront
Axl
e R
ight
)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt w
heel
spe
ed
sens
or e
quip
ped?
)•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s E
CU
pin
ope
n?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
790
- 14
= W
heel
Spe
ed
Sen
sor
(Fro
nt A
xle
Rig
ht)
- sp
ecia
l ins
truc
tions
Run
Out
Fai
lure
of W
heel
S
peed
Sen
sor
(Fro
nt A
xle
Rig
ht)
A R
unO
ut fa
ilure
will
be
dete
cted
, if t
he ra
tio o
f min
/max
am
plitu
des
is to
o hi
gh.
• C
heck
the
rele
vant
toot
h w
heel
. (Is
it d
amag
ed?)
• C
heck
the
rele
vant
whe
el-b
earin
g. (
Is it
loos
ened
?)
4013136a
5 SPN FMI Fault Codes
21WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.6
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
791
- 1
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Left)
-
data
val
id, b
ut b
elow
no
rmal
ope
ratio
n ra
nge
(mos
t sev
ere
leve
l)
AirG
ap F
ailu
re o
f Whe
el
Spe
ed S
enso
r (D
rive
Axl
e Le
ft)
An
air
gap
failu
re is
det
ecte
d, if
the
volta
ge a
mpl
itude
is to
o lo
w
(dep
ends
on
sign
al fr
eque
ncy)
.•
Che
ck th
e re
leva
nt w
heel
spe
ed s
enso
r an
d its
fitti
ng. I
s th
e di
stan
ce b
etw
een
toot
h w
heel
and
sen
sor
(air
gap)
too
wid
e?•
Che
ck th
e w
heel
spe
ed s
enso
r fo
r co
rrec
t vol
tage
out
put.
(Is
volta
ge
outp
ut s
uffic
ient
?)•
If se
nsor
and
air
gap
are
corr
ect,
cont
act W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
791
- 3
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Left)
-
volta
ge a
bove
nor
mal
or
shor
ted
high
Sho
rt C
ircui
t to
UB
of
Whe
el S
peed
Sen
sor (
Driv
e A
xle
Left)
A s
hort
circ
uit t
o U
B a
t the
whe
el s
peed
sen
sor
(IG
-H o
r IG
-L)
is d
etec
ted
afte
r 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
791
- 4
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Left)
-
volta
ge b
elow
nor
mal
or
shor
ted
low
Sho
rt C
ircui
t to
GN
D o
f W
heel
Spe
ed S
enso
r (D
rive
Axl
e Le
ft)
A s
hort
circ
uit t
o G
ND
at t
he w
heel
spe
ed s
enso
r (I
G-H
or
IG-L
) is
det
ecte
d 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
791
- 5
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Left)
-
curr
ent b
elow
nor
mal
or
open
circ
uit
Inte
rrup
tion
of W
heel
S
peed
Sen
sor
(Driv
e A
xle
Left)
An
inte
rrup
tion
(ope
n lo
ad)
at th
e w
heel
spe
ed s
enso
r (I
G-H
or
IG-L
) is
det
ecte
d af
ter
150
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
sen
sor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
791
- 6
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Left)
-
curr
ent a
bove
nor
mal
or
grou
nded
circ
uit
Sho
rted
Coi
l of W
heel
S
peed
Sen
sor
(Driv
e A
xle
Left)
A s
hort
ed c
oil o
f the
whe
el s
peed
sen
sor
(<30
0 oh
m)
is
dete
cted
afte
r 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
791
- 7
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Left)
-
mec
hani
cal s
yste
m n
ot
resp
ondi
ng p
rope
rly o
r ou
t of a
djus
tmen
t
Pol
ewhe
el F
ailu
re o
f Whe
el
Spe
ed S
enso
r (D
rive
Axl
e Le
ft)
The
whe
el s
peed
det
ectio
n sh
all b
e ab
le to
det
ect i
nsuf
ficie
nt
and/
or m
issi
ng te
eth
defin
ed w
ithin
300
0 co
unts
of t
eeth
.•
Che
ck th
e re
leva
nt to
oth
whe
el. (
Is it
dam
aged
or
dirt
y?)
791
- 8
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Left)
-
abno
rmal
freq
uenc
y,
puls
e w
idth
or
perio
d
Whe
el S
peed
Sen
sor
Freq
uenc
y To
o H
igh
(Driv
e A
xle
Left)
A fa
ilure
is d
etec
ted
if th
e w
heel
spe
ed s
igna
l fre
quen
cy is
>3
500
Hz.
• C
heck
whe
ther
ther
e ar
e in
adm
issi
ble
osci
llatio
n-ef
fect
s at
the
rele
vant
foun
datio
n br
ake.
• C
heck
whe
ther
ther
e ar
e in
adm
issi
ble
osci
llatio
n-ef
fect
s at
the
fittin
g of
the
rele
vant
whe
el s
peed
sen
sor.
• C
heck
the
isol
atio
n of
the
whe
el-s
peed
sen
sor
wiri
ng (
high
fr
eque
ncie
s m
ight
be
indu
ced)
.•
If th
e ot
her
effe
cts
wer
e al
read
y ch
ecke
d, c
onta
ct W
AB
CO
Nor
th
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
791
- 11
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Left)
- fa
ilure
mod
e no
t id
entifi
able
/roo
t cau
se n
ot
know
n
Pla
usib
ility
Che
ck o
f Whe
el
Spe
ed S
enso
r (D
rive
Axl
e Le
ft)
The
whe
el s
peed
det
ectio
n sh
all m
onito
r an
alog
inpu
t and
di
gita
l inp
ut o
f WA
BA
AS
IC a
nd c
ompa
re b
oth
sign
als
whe
ther
or
not
they
are
con
sist
ency
(pl
ausi
bilit
y ch
eck)
.
• C
heck
wiri
ng o
f rel
evan
t whe
el s
peed
sen
sor.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
791
- 13
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Left)
-
out o
f cal
ibra
tion
Failu
re D
etec
tion
'Ove
rEqu
ippe
d' o
f Whe
el
Spe
ed S
enso
r (D
rive
Axl
e Le
ft)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt w
heel
spe
ed
sens
or e
quip
ped?
)•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s E
CU
pin
ope
n?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855
-228
-320
3.
791
- 14
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Left)
-
spec
ial i
nstr
uctio
ns
Run
Out
Fai
lure
of W
heel
S
peed
Sen
sor
(Driv
e A
xle
Left)
A R
unO
ut fa
ilure
will
be
dete
cted
if th
e ra
tio o
f min
/max
am
plitu
des
is to
o hi
gh.
• C
heck
the
rele
vant
toot
h w
heel
. (Is
it d
amag
ed?)
• C
heck
the
rele
vant
whe
el-b
earin
g. (
Is it
loos
ened
?)
4013137a
5 SPN FMI Fault Codes
22 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.7
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
792
- 1
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Rig
ht)
- da
ta v
alid
, but
bel
ow
norm
al o
pera
tion
rang
e (m
ost s
ever
e le
vel)
AirG
ap F
ailu
re o
f Whe
el
Spe
ed S
enso
r (D
rive
Axl
e R
ight
)
An
air
gap
failu
re is
det
ecte
d if
the
volta
ge a
mpl
itude
is to
o lo
w
(dep
ends
on
sign
al fr
eque
ncy)
.•
Che
ck th
e re
leva
nt w
heel
spe
ed s
enso
r an
d its
fitti
ng. I
s th
e di
stan
ce b
etw
een
toot
h w
heel
and
sen
sor
(air
gap)
too
wid
e?•
Che
ck th
e w
heel
spe
ed s
enso
r fo
r co
rrec
t vol
tage
out
put.
(Is
volta
ge
outp
ut s
uffic
ient
?)•
If se
nsor
and
air
gap
are
corr
ect,
cont
act W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
792
- 3
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Rig
ht)
- vo
ltage
abo
ve n
orm
al o
r sh
orte
d hi
gh
Sho
rt C
ircui
t to
UB
of
Whe
el S
peed
Sen
sor (
Driv
e A
xle
Rig
ht)
A s
hort
circ
uit t
o U
B a
t the
whe
el s
peed
sen
sor
(IG
-H o
r IG
-L)
is d
etec
ted
afte
r 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
792
- 4
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Rig
ht)
- vo
ltage
bel
ow n
orm
al o
r sh
orte
d lo
w
Sho
rt C
ircui
t to
GN
D o
f W
heel
Spe
ed S
enso
r (D
rive
Axl
e R
ight
)
A s
hort
circ
uit t
o G
ND
at t
he w
heel
spe
ed s
enso
r (I
G-H
or
IG-L
) is
det
ecte
d 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
792
- 5
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Rig
ht)
- cu
rren
t bel
ow n
orm
al o
r op
en c
ircui
t
Inte
rrup
tion
of W
heel
S
peed
Sen
sor
(Driv
e A
xle
Rig
ht)
An
inte
rrup
tion
(ope
n lo
ad)
at th
e w
heel
spe
ed s
enso
r (I
G-H
or
IG-L
) is
det
ecte
d af
ter
150
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
sen
sor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
792
- 6
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Rig
ht)
- cu
rren
t abo
ve n
orm
al o
r gr
ound
ed c
ircui
t
Sho
rted
Coi
l of W
heel
S
peed
Sen
sor
(Driv
e A
xle
Rig
ht)
A s
hort
ed c
oil o
f the
whe
el s
peed
sen
sor
(<30
0 oh
m)
is
dete
cted
afte
r 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
792
- 7
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Rig
ht)
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Pol
ewhe
el F
ailu
re o
f Whe
el
Spe
ed S
enso
r (D
rive
Axl
e R
ight
)
The
whe
el s
peed
det
ectio
n sh
all b
e ab
le to
det
ect i
nsuf
ficie
nt
and/
or m
issi
ng te
eth
defin
ed w
ithin
300
0 co
unts
of t
eeth
.•
Che
ck th
e re
leva
nt to
oth
whe
el. (
Is it
dam
aged
or
dirt
y?)
792
- 8
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Rig
ht)
- ab
norm
al fr
eque
ncy,
pu
lse
wid
th o
r pe
riod
Whe
el S
peed
Sen
sor
Freq
uenc
y To
o H
igh
(Driv
e A
xle
Rig
ht)
A fa
ilure
is d
etec
ted
if th
e w
heel
spe
ed s
igna
l fre
quen
cy is
>3
500
Hz.
• C
heck
whe
ther
ther
e ar
e in
adm
issi
ble
osci
llatio
n-ef
fect
s at
the
rele
vant
foun
datio
n br
ake.
• C
heck
whe
ther
ther
e ar
e in
adm
issi
ble
osci
llatio
n-ef
fect
s at
the
fittin
g of
the
rele
vant
whe
el s
peed
sen
sor.
• C
heck
the
isol
atio
n of
the
whe
el-s
peed
sen
sor
wiri
ng (
high
fr
eque
ncie
s m
ight
be
indu
ced)
.•
If th
e ot
her
effe
cts
wer
e al
read
y ch
ecke
d, c
onta
ct W
AB
CO
Nor
th
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
792
- 11
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Rig
ht)
- fa
ilure
mod
e no
t id
entifi
able
/roo
t cau
se n
ot
know
n
Pla
usib
ility
Che
ck o
f Whe
el
Spe
ed S
enso
r (D
rive
Axl
e R
ight
)
The
whe
el s
peed
det
ectio
n sh
all m
onito
r an
alog
inpu
t and
di
gita
l inp
ut o
f WA
BA
AS
IC a
nd c
ompa
re b
oth
sign
als
whe
ther
or
not
they
are
con
sist
ency
(pl
ausi
bilit
y ch
eck)
.
• C
heck
wiri
ng o
f rel
evan
t whe
el s
peed
sen
sor.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
792
- 13
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Rig
ht)
- ou
t of c
alib
ratio
n
Failu
re D
etec
tion
'Ove
rEqu
ippe
d' o
f Whe
el
Spe
ed S
enso
r (D
rive
Axl
e R
ight
)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt w
heel
spe
ed
sens
or e
quip
ped?
)•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s E
CU
pin
ope
n?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
792
- 14
= W
heel
Spe
ed
Sen
sor
(Driv
e A
xle
Rig
ht)
- sp
ecia
l ins
truc
tions
Run
Out
Fai
lure
of W
heel
S
peed
Sen
sor
(Driv
e A
xle
Rig
ht)
A R
unO
ut fa
ilure
will
be
dete
cted
if th
e ra
tio o
f min
/max
am
plitu
des
is to
o hi
gh.
• C
heck
the
rele
vant
toot
h w
heel
. (Is
it d
amag
ed?)
• C
heck
the
rele
vant
whe
el-b
earin
g. (
Is it
loos
ened
?)
4013138a
5 SPN FMI Fault Codes
23WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.8
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
793
- 1
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e Le
ft) -
dat
a va
lid, b
ut
belo
w n
orm
al o
pera
tion
rang
e (m
ost s
ever
e le
vel)
AirG
ap F
ailu
re o
f W
heel
Spe
ed S
enso
r (I
nter
med
iate
Axl
e Le
ft)
An
air
gap
failu
re is
det
ecte
d if
the
volta
ge a
mpl
itude
is to
o lo
w
(dep
ends
on
sign
al fr
eque
ncy)
.•
Che
ck th
e re
leva
nt w
heel
spe
ed s
enso
r an
d its
fitti
ng. I
s th
e di
stan
ce b
etw
een
toot
h w
heel
and
sen
sor
(air
gap)
too
wid
e?•
Che
ck th
e w
heel
spe
ed s
enso
r fo
r co
rrec
t vol
tage
out
put.
(Is
volta
ge
outp
ut s
uffic
ient
?)•
If se
nsor
and
air
gap
are
corr
ect,
cont
act W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
793
- 3
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e Le
ft) -
vol
tage
abo
ve
norm
al o
r sh
orte
d hi
gh
Sho
rt C
ircui
t to
UB
of
Whe
el S
peed
Sen
sor
(Int
erm
edia
te A
xle
Left)
A s
hort
circ
uit t
o U
B a
t the
whe
el s
peed
sen
sor
(IG
-H o
r IG
-L)
is d
etec
ted
afte
r 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
793
- 4
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e Le
ft) -
vol
tage
bel
ow
norm
al o
r sh
orte
d lo
w
Sho
rt C
ircui
t to
GN
D o
f W
heel
Spe
ed S
enso
r (I
nter
med
iate
Axl
e Le
ft)
A s
hort
circ
uit t
o G
ND
at t
he w
heel
spe
ed s
enso
r (I
G-H
or
IG-L
) is
det
ecte
d 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
793
- 5
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e Le
ft) -
cur
rent
bel
ow
norm
al o
r op
en c
ircui
t
Inte
rrup
tion
of W
heel
S
peed
Sen
sor
(Int
erm
edia
te A
xle
Left)
An
inte
rrup
tion
(ope
n lo
ad)
at th
e w
heel
spe
ed s
enso
r (I
G-H
or
IG-L
) is
det
ecte
d af
ter
150
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
sen
sor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
793
- 6
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e Le
ft) -
cur
rent
abo
ve
norm
al o
r gr
ound
ed
circ
uit
Sho
rted
Coi
l of
Whe
el S
peed
Sen
sor
(Int
erm
edia
te A
xle
Left)
A s
hort
ed c
oil o
f the
whe
el s
peed
sen
sor
(<30
0 oh
m)
is
dete
cted
afte
r 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
793
- 7
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e Le
ft) -
mec
hani
cal
syst
em n
ot r
espo
ndin
g pr
oper
ly o
r ou
t of
adju
stm
ent
Pol
ewhe
el F
ailu
re o
f W
heel
Spe
ed S
enso
r (I
nter
med
iate
Axl
e Le
ft)
The
whe
el s
peed
det
ectio
n sh
all b
e ab
le to
det
ect i
nsuf
ficie
nt
and/
or m
issi
ng te
eth
defin
ed w
ithin
300
0 co
unts
of t
eeth
.•
Che
ck th
e re
leva
nt to
oth
whe
el. (
Is it
dam
aged
or
dirt
y?)
793
- 8
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e Le
ft) -
abn
orm
al
freq
uenc
y, p
ulse
wid
th
or p
erio
d
Whe
el S
peed
Sen
sor
Freq
uenc
y To
o H
igh
(Int
erm
edia
te A
xle
Left)
A fa
ilure
is d
etec
ted
if th
e w
heel
spe
ed s
igna
l fre
quen
cy is
>3
500
Hz.
• C
heck
whe
ther
ther
e ar
e in
adm
issi
ble
osci
llatio
n-ef
fect
s at
the
rele
vant
foun
datio
n br
ake.
• C
heck
whe
ther
ther
e ar
e in
adm
issi
ble
osci
llatio
n-ef
fect
s at
the
fittin
g of
the
rele
vant
whe
el s
peed
sen
sor.
• C
heck
the
isol
atio
n of
the
whe
el-s
peed
sen
sor
wiri
ng (
high
fr
eque
ncie
s m
ight
be
indu
ced)
.•
If th
e ot
her
effe
cts
wer
e al
read
y ch
ecke
d, c
onta
ct W
AB
CO
Nor
th
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
793
- 11
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e Le
ft) -
failu
re m
ode
not i
dent
ifiab
le/r
oot c
ause
no
t kno
wn
Pla
usib
ility
Che
ck o
f W
heel
Spe
ed S
enso
r (I
nter
med
iate
Axl
e Le
ft)
The
whe
el s
peed
det
ectio
n sh
all m
onito
r an
alog
inpu
t and
di
gita
l inp
ut o
f WA
BA
AS
IC a
nd c
ompa
re b
oth
sign
als
whe
ther
or
not
they
are
con
sist
ency
(pl
ausi
bilit
y ch
eck)
.
• C
heck
wiri
ng o
f rel
evan
t whe
el s
peed
sen
sor.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
793
- 13
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e Le
ft) -
out
of
calib
ratio
n
Failu
re D
etec
tion
'Ove
rEqu
ippe
d' o
f W
heel
Spe
ed S
enso
r (I
nter
med
iate
Axl
e Le
ft)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt w
heel
spe
ed
sens
or e
quip
ped?
)•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s E
CU
pin
ope
n?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
793
- 14
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e Le
ft) -
spe
cial
in
stru
ctio
ns
Run
Out
Fai
lure
of
Whe
el S
peed
Sen
sor
(Int
erm
edia
te A
xle
Left)
A R
unO
ut fa
ilure
will
be
dete
cted
if th
e ra
tio o
f min
/max
am
plitu
des
is to
o hi
gh.
• C
heck
the
rele
vant
toot
h w
heel
. (Is
it d
amag
ed?)
• C
heck
the
rele
vant
whe
el-b
earin
g. (
Is it
loos
ened
?)
4013139a
5 SPN FMI Fault Codes
24 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.9
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
794
- 1
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e R
ight
) -
data
va
lid, b
ut b
elow
nor
mal
op
erat
ion
rang
e (m
ost
seve
re le
vel)
AirG
ap F
ailu
re o
f W
heel
Spe
ed S
enso
r (I
nter
med
iate
Axl
e R
ight
)
An
air
gap
failu
re is
det
ecte
d if
the
volta
ge a
mpl
itude
is to
o lo
w
(dep
ends
on
sign
al fr
eque
ncy)
.•
Che
ck th
e re
leva
nt w
heel
spe
ed s
enso
r an
d its
fitti
ng. I
s th
e di
stan
ce b
etw
een
toot
h w
heel
and
sen
sor
(air
gap)
too
wid
e?•
Che
ck th
e w
heel
spe
ed s
enso
r fo
r co
rrec
t vol
tage
out
put.
(Is
volta
ge
outp
ut s
uffic
ient
?)•
If se
nsor
and
air
gap
are
corr
ect,
cont
act W
AB
CO
Nor
th
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
794
- 3
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e R
ight
) -
volta
ge
abov
e no
rmal
or
shor
ted
high
Sho
rt C
ircui
t to
UB
of
Whe
el S
peed
Sen
sor
(Int
erm
edia
te A
xle
Rig
ht)
A s
hort
circ
uit t
o U
B a
t the
whe
el s
peed
sen
sor
(IG
-H o
r IG
-L)
is d
etec
ted
afte
r 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
794
- 4
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e R
ight
) -
volta
ge
belo
w n
orm
al o
r sh
orte
d lo
w
Sho
rt C
ircui
t to
GN
D o
f W
heel
Spe
ed S
enso
r (I
nter
med
iate
Axl
e R
ight
)
A s
hort
circ
uit t
o G
ND
at t
he w
heel
spe
ed s
enso
r (I
G-H
or
IG-L
) is
det
ecte
d 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
794
- 5
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e R
ight
) -
curr
ent
belo
w n
orm
al o
r op
en
circ
uit
Inte
rrup
tion
of W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te A
xle
Rig
ht)
An
inte
rrup
tion
(ope
n lo
ad)
at th
e w
heel
spe
ed s
enso
r (I
G-H
or
IG-L
) is
det
ecte
d af
ter
150
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
sen
sor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
794
- 6
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e R
ight
) -
curr
ent
abov
e no
rmal
or
grou
nded
circ
uit
Sho
rted
Coi
l of
Whe
el S
peed
Sen
sor
(Int
erm
edia
te A
xle
Rig
ht)
A s
hort
ed c
oil o
f the
whe
el s
peed
sen
sor
(<30
0 oh
m)
is
dete
cted
afte
r 15
0 m
s.•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t sen
sor.
(Is
ther
e an
inte
rnal
sho
rt c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
794
- 7
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e R
ight
) -
mec
hani
cal
syst
em n
ot r
espo
ndin
g pr
oper
ly o
r ou
t of
adju
stm
ent
Pol
ewhe
el F
ailu
re o
f W
heel
Spe
ed S
enso
r (I
nter
med
iate
Axl
e R
ight
)
The
whe
el s
peed
det
ectio
n sh
all b
e ab
le to
det
ect i
nsuf
ficie
nt
and/
or m
issi
ng te
eth
defin
ed w
ithin
300
0 co
unts
of t
eeth
.•
Che
ck th
e re
leva
nt to
oth
whe
el. (
Is it
dam
aged
or
dirt
y?)
794
- 8
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e R
ight
) -
abno
rmal
fr
eque
ncy,
pul
se w
idth
or
per
iod
Whe
el S
peed
Sen
sor
Freq
uenc
y To
o H
igh
(Int
erm
edia
te A
xle
Rig
ht)
A fa
ilure
is d
etec
ted
if th
e w
heel
spe
ed s
igna
l fre
quen
cy is
>3
500
Hz.
• C
heck
whe
ther
ther
e ar
e in
adm
issi
ble
osci
llatio
n-ef
fect
s at
the
rele
vant
foun
datio
n br
ake.
• C
heck
whe
ther
ther
e ar
e in
adm
issi
ble
osci
llatio
n-ef
fect
s at
the
fittin
g of
the
rele
vant
whe
el s
peed
sen
sor.
• C
heck
the
isol
atio
n of
the
whe
el-s
peed
sen
sor
wiri
ng (
high
fr
eque
ncie
s m
ight
be
indu
ced)
.•
If th
e ot
her
effe
cts
wer
e al
read
y ch
ecke
d, c
onta
ct W
AB
CO
Nor
th
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
794
- 11
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e R
ight
) -
failu
re m
ode
not i
dent
ifiab
le/r
oot c
ause
no
t kno
wn
Pla
usib
ility
Che
ck o
f W
heel
Spe
ed S
enso
r (I
nter
med
iate
Axl
e R
ight
)
The
whe
el s
peed
det
ectio
n sh
all m
onito
r an
alog
inpu
t and
di
gita
l inp
ut o
f WA
BA
AS
IC a
nd c
ompa
re b
oth
sign
als
whe
ther
or
not
they
are
con
sist
ency
(pl
ausi
bilit
y ch
eck)
.
• C
heck
wiri
ng o
f rel
evan
t whe
el s
peed
sen
sor.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
794
- 13
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e R
ight
) -
out o
f ca
libra
tion
Failu
re D
etec
tion
'Ove
rEqu
ippe
d' o
f W
heel
Spe
ed S
enso
r (I
nter
med
iate
Axl
e R
ight
)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt w
heel
spe
ed
sens
or e
quip
ped?
)•
Che
ck w
iring
of r
elev
ant s
enso
r. (I
s E
CU
pin
ope
n?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
4013140a
5 SPN FMI Fault Codes
25WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.10
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
794
- 14
= W
heel
Spe
ed
Sen
sor
(Int
erm
edia
te
Axl
e R
ight
) -
spec
ial
inst
ruct
ions
Run
Out
Fai
lure
of
Whe
el S
peed
Sen
sor
(Int
erm
edia
te A
xle
Rig
ht)
A R
unO
ut fa
ilure
will
be
dete
cted
, if t
he ra
tio o
f min
/max
am
plitu
des
is to
o hi
gh.
• C
heck
the
rele
vant
toot
h w
heel
. (Is
it d
amag
ed?)
• C
heck
the
rele
vant
whe
el-b
earin
g. (
Is it
loos
ened
?)
795
- 3
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(F
ront
Axl
e Le
ft) -
vol
tage
ab
ove
norm
al o
r sh
orte
d hi
gh
Failu
re d
etec
tion
'Sho
rtU
b'
at A
bsIn
let/A
bsO
utle
t (Fr
ont
Axl
e Le
ft)
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
795
- 4
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(F
ront
Axl
e Le
ft) -
vol
tage
be
low
nor
mal
or
shor
ted
low
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
bsIn
let/A
bsO
utle
t (Fr
ont
Axl
e Le
ft)
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in
activ
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
Rem
ark:
A s
hort
ed lo
ad a
lso
lead
s to
a s
hort
to G
ND
failu
re. A
sh
orte
d lo
ad is
det
ecte
d:
- A
fter
200
ms
afte
r ig
nitio
n-on
and
als
o if
valv
e is
act
ivat
ed.
- A
fter
1000
ms
if va
lve
is n
ot a
ctiv
ated
.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
795
- 5
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(F
ront
Axl
e Le
ft) -
cur
rent
be
low
nor
mal
or
open
ci
rcui
t
Failu
re d
etec
tion
'Inte
rrup
tion'
at A
bsIn
let/
Abs
Out
let (
Fron
t Axl
e Le
ft)
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
795
- 13
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(F
ront
Axl
e Le
ft) -
out
of
calib
ratio
n
Failu
re d
etec
tion
'Ove
rEqu
ippe
d' a
t Abs
Inle
t/A
bsO
utle
t (Fr
ont A
xle
Left)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
796
- 3
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(F
ront
Axl
e R
ight
) -
volta
ge a
bove
nor
mal
or
shor
ted
high
Failu
re d
etec
tion
'Sho
rtU
b'
at A
bsIn
let/A
bsO
utle
t (Fr
ont
Axl
e R
ight
)
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
796
- 4
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(F
ront
Axl
e R
ight
) -
volta
ge b
elow
nor
mal
or
shor
ted
low
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
bsIn
let/A
bsO
utle
t (Fr
ont
Axl
e R
ight
)
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in
activ
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
Rem
ark:
A s
hort
ed lo
ad a
lso
lead
s to
a s
hort
to G
ND
failu
re. A
sh
orte
d lo
ad is
det
ecte
d:
- A
fter
200
ms
afte
r ig
nitio
n-on
and
als
o if
valv
e is
act
ivat
ed.
- A
fter
1000
ms
if va
lve
is n
ot a
ctiv
ated
.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
796
- 5
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(F
ront
Axl
e R
ight
) -
curr
ent b
elow
nor
mal
or
open
circ
uit
Failu
re d
etec
tion
'Inte
rrup
tion'
at A
bsIn
let/
Abs
Out
let (
Fron
t Axl
e R
ight
)
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
796
- 13
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(F
ront
Axl
e R
ight
) -
out o
f ca
libra
tion
Failu
re d
etec
tion
'Ove
rEqu
ippe
d' a
t Abs
Inle
t/A
bsO
utle
t (Fr
ont A
xle
Rig
ht)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
797
- 3
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(D
rive
Axl
e Le
ft) -
vol
tage
ab
ove
norm
al o
r sh
orte
d hi
gh
Failu
re d
etec
tion
'Sho
rtU
b'
at A
bsIn
let/A
bsO
utle
t (D
rive
Axl
e Le
ft)
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
4013141a
5 SPN FMI Fault Codes
26 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.11
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
797
- 4
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(D
rive
Axl
e Le
ft) -
vol
tage
be
low
nor
mal
or
shor
ted
low
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
bsIn
let/A
bsO
utle
t (D
rive
Axl
e Le
ft)
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in
activ
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
Rem
ark:
A s
hort
ed lo
ad a
lso
lead
s to
a s
hort
to G
ND
failu
re. A
sh
orte
d lo
ad is
det
ecte
d:
- A
fter
200
ms
afte
r ig
nitio
n-on
and
als
o if
valv
e is
act
ivat
ed.
- A
fter
1000
ms
if va
lve
is n
ot a
ctiv
ated
.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
797
- 5
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(D
rive
Axl
e Le
ft) -
cur
rent
be
low
nor
mal
or
open
ci
rcui
t
Failu
re d
etec
tion
'Inte
rrup
tion'
at A
bsIn
let/
Abs
Out
let (
Driv
e A
xle
Left)
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
797
- 13
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(D
rive
Axl
e Le
ft) -
out
of
calib
ratio
n
Failu
re d
etec
tion
'Ove
rEqu
ippe
d' a
t Abs
Inle
t/A
bsO
utle
t (D
rive
Axl
e Le
ft)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
798
- 3
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(D
rive
Axl
e R
ight
) -
volta
ge a
bove
nor
mal
or
shor
ted
high
Failu
re d
etec
tion
'Sho
rtU
b'
at A
bsIn
let/A
bsO
utle
t (D
rive
Axl
e R
ight
)
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
798
- 4
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(D
rive
Axl
e R
ight
) -
volta
ge b
elow
nor
mal
or
shor
ted
low
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
bsIn
let/A
bsO
utle
t (D
rive
Axl
e R
ight
)
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
R
emar
k: A
sho
rted
load
als
o le
ads
to a
sho
rt to
GN
D fa
ilure
. A
shor
ted
load
is d
etec
ted:
-
Afte
r 20
0 m
s af
ter
igni
tion-
on a
nd a
lso
if va
lve
is a
ctiv
ated
.-
Afte
r 10
00 m
s if
valv
e is
not
act
ivat
ed.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
798
- 5
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(D
rive
Axl
e R
ight
) -
curr
ent b
elow
nor
mal
or
open
circ
uit
Failu
re d
etec
tion
'Inte
rrup
tion'
at A
bsIn
let/
Abs
Out
let (
Driv
e A
xle
Rig
ht)
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
798
- 13
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(D
rive
Axl
e R
ight
) -
out o
f ca
libra
tion
Failu
re d
etec
tion
'Ove
rEqu
ippe
d' a
t Abs
Inle
t/A
bsO
utle
t (D
rive
Axl
e R
ight
)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
799
- 3
= P
ress
ure
Mod
ulat
ion
Val
ve A
BS
(I
nter
med
iate
Axl
e Le
ft)
- vo
ltage
abo
ve n
orm
al o
r sh
orte
d hi
gh
Failu
re d
etec
tion
'Sho
rtU
b'
at A
bsIn
let/A
bsO
utle
t (I
nter
med
iate
Axl
e Le
ft)
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
799
- 4
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(I
nter
med
iate
Axl
e Le
ft) -
vo
ltage
bel
ow n
orm
al o
r sh
orte
d lo
w
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
bsIn
let/A
bsO
utle
t (I
nter
med
iate
Axl
e Le
ft)
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in
activ
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
Rem
ark:
A s
hort
ed lo
ad a
lso
lead
s to
a s
hort
to G
ND
failu
re. A
sh
orte
d lo
ad is
det
ecte
d:
- A
fter
200
ms
afte
r ig
nitio
n-on
and
als
o if
valv
e is
act
ivat
ed.
- A
fter
1000
ms
if va
lve
is n
ot a
ctiv
ated
.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
4013142a
5 SPN FMI Fault Codes
27WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.12
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
799
- 5
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(I
nter
med
iate
Axl
e Le
ft)
- cu
rren
t bel
ow n
orm
al o
r op
en c
ircui
t
Failu
re d
etec
tion
'Inte
rrup
tion'
at A
bsIn
let/
Abs
Out
let (
Inte
rmed
iate
A
xle
Left)
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
799
- 13
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(I
nter
med
iate
Axl
e Le
ft) -
ou
t of c
alib
ratio
n
Failu
re d
etec
tion
'Ove
rEqu
ippe
d' a
t Abs
Inle
t/A
bsO
utle
t (In
term
edia
te
Axl
e Le
ft)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
800
- 3
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(I
nter
med
iate
Axl
e R
ight
) -
volta
ge a
bove
nor
mal
or
shor
ted
high
Failu
re d
etec
tion
'Sho
rtU
b'
at A
bsIn
let/A
bsO
utle
t (I
nter
med
iate
Axl
e R
ight
)
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
800
- 4
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(I
nter
med
iate
Axl
e R
ight
) -
volta
ge b
elow
nor
mal
or
shor
ted
low
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
bsIn
let/A
bsO
utle
t (I
nter
med
iate
Axl
e R
ight
)
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in
activ
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
Rem
ark:
A s
hort
ed lo
ad a
lso
lead
s to
a s
hort
to G
ND
failu
re. A
sh
orte
d lo
ad is
det
ecte
d:
- A
fter
200
ms
afte
r ig
nitio
n-on
and
als
o if
valv
e is
act
ivat
ed.
- A
fter
1000
ms
if va
lve
is n
ot a
ctiv
ated
.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
800
- 5
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(I
nter
med
iate
Axl
e R
ight
) -
curr
ent b
elow
nor
mal
or
open
circ
uit
Failu
re d
etec
tion
'Inte
rrup
tion'
at A
bsIn
let/
Abs
Out
let (
Inte
rmed
iate
A
xle
Rig
ht)
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
800
- 13
= P
ress
ure
Mod
ulat
ion
Valv
e A
BS
(I
nter
med
iate
Axl
e R
ight
) -
out o
f cal
ibra
tion
Failu
re d
etec
tion
'Ove
rEqu
ippe
d' a
t Abs
Inle
t/A
bsO
utle
t (In
term
edia
te
Axl
e R
ight
)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
801
- 3
= R
etar
der
Con
trol
Rel
ay -
vol
tage
ab
ove
norm
al o
r sh
orte
d hi
gh
Failu
re d
etec
tion
‘Sho
rtU
b’
at E
ndur
ance
Bra
ke R
elay
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
801
- 4
= R
etar
der
Con
trol
Rel
ay -
vol
tage
be
low
nor
mal
or
shor
ted
low
Failu
re d
etec
tion
‘Sho
rtG
nd’
at E
ndur
ance
Bra
ke R
elay
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in
activ
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
801
- 5
= R
etar
der
Con
trol
Rel
ay -
cur
rent
be
low
nor
mal
or
open
ci
rcui
t
Failu
re d
etec
tion
‘Inte
rrup
tion’
at E
ndur
ance
B
rake
Rel
ay
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
801
- 13
= R
etar
der
Con
trol
Rel
ay -
out
of
calib
ratio
n
Failu
re d
etec
tion
‘Ove
rEqu
ippe
d’ a
t E
ndur
ance
Bra
ke R
elay
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
4013143a
5 SPN FMI Fault Codes
28 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.13
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
810
- 2
= S
peed
Sig
nal
Inpu
t - d
ata
erra
tic,
inte
rmitt
ent o
r in
corr
ect
Che
ck b
etw
een
Spe
edom
eter
Sig
nal a
nd
AB
S S
peed
Thi
s er
ror
is s
et w
hen
the
calc
ulat
ed u
ncor
rect
ed s
peed
omet
er
adju
stm
ent f
acto
r is
inva
lid o
r w
hen
inco
nsis
tenc
ies
are
dete
cted
bet
wee
n th
e se
nsed
whe
el s
peed
s an
d th
e ve
hicl
e sp
eed
for
the
defin
ed ti
me
perio
ds.
• C
heck
the
air
gap
of a
ll w
heel
spe
ed s
enso
rs (
mig
ht b
e to
o w
ide)
.•
Che
ck th
e pa
ram
eter
s ‘w
heel
dia
met
er’ a
nd ‘t
ooth
whe
el te
eth
num
bers
’ (if
appl
icab
le).
• Is
the
spee
d si
gnal
of t
he ta
chog
raph
EC
U (
on c
hass
is C
AN
dat
a lin
k) c
orre
ct?
• Is
the
spee
d si
gnal
of t
he ta
chog
raph
EC
U (
on c
hass
is C
AN
dat
a lin
k) n
ot a
vaila
ble?
1066
- 0
= B
rake
Sig
nal
Tran
smitt
er -
dat
a va
lid, b
ut a
bove
nor
mal
op
erat
ing
rang
e (m
ost
seve
re le
vel)
Det
ectio
n of
Inva
lid O
ffset
Va
lue
of B
rake
Sig
nal
The
det
ectio
n ch
ecks
if th
e re
sulti
ng P
WM
sig
nal o
f the
FB
V
(foot
bra
ke v
alve
) is
too
high
in u
nbra
ked
cond
ition
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1066
- 2
= B
rake
Sig
nal
Tran
smitt
er -
dat
a er
ratic
, in
term
itten
t or
inco
rrec
t
Det
ectio
n of
Sig
nific
ant
PW
M In
put S
igna
l D
iffer
ence
The
det
ectio
n co
mpa
res
both
PW
M s
igna
ls o
f the
FB
V (
foot
br
ake
valv
e). I
f an
inad
mis
sibl
e de
viat
ion
(500
µs)
is d
etec
ted,
th
en th
e fa
ilure
is s
et. T
he c
heck
sha
ll on
ly b
e ex
ecut
ed:
- If
both
PW
M s
igna
ls a
re a
vaila
ble
and
- If
at le
ast o
ne s
igna
l (P
WM
1 or
PW
M2)
is b
elow
200
0 µs
Rem
ark.
Due
to th
e F
BV
cha
ract
eris
tic, t
his
chec
k sh
all n
ot b
e do
ne if
bra
ke p
edal
is s
tron
gly
appl
ied.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1066
- 8
= B
rake
Sig
nal
Tran
smitt
er -
abn
orm
al
freq
uenc
y, p
ulse
wid
th
or p
erio
d
Diff
eren
ce o
f PW
M S
igna
l Fr
eque
ncy
not 4
Hz
A fa
ilure
is d
etec
ted
if th
e di
ffere
nce
of P
WM
freq
uenc
ies
is n
ot
with
in v
alid
rang
e (4
Hz
nom
inal
). W
ith th
e P
WM
tole
ranc
es, t
he fr
eque
ncy
diffe
renc
e f_
PW
M2
- f_
PW
M1
shal
l be
in th
e ra
nge
1,5
Hz
. . .
12 H
z.T
he d
etec
tion
time
is 2
50 m
s.
• C
heck
for
corr
ect t
ype
of F
BV
(fo
ot b
rake
val
ve).
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1066
- 1
2 =
Bra
ke
Sig
nal T
rans
mitt
er -
bad
in
telli
gent
dev
ice
or
com
pone
nt
Det
ectio
n of
Tot
al F
ailu
re o
f bo
th P
WM
Inpu
t Sig
nals
The
det
ectio
n ch
ecks
if b
oth
PW
M s
igna
ls o
f the
FB
V (
foot
br
ake
valv
e) a
re n
ot a
vaila
ble.
If b
oth
PW
M s
igna
ls a
re n
ot
avai
labl
e, th
en th
e fa
ilure
is s
et.
The
che
ck is
onl
y ac
tive
if th
e P
aram
eter
‘Driv
er D
eman
d S
enso
rtyp
e’ is
=2.
• C
heck
for
corr
ect p
aram
eter
set
ting
(driv
er d
eman
d se
nsor
type
).•
Che
ck fo
r co
rrec
t wiri
ng o
f FB
V. (
Is th
ere
an in
terr
uptio
n? A
sho
rt
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1067
- 2
= B
rake
Sig
nal
Sen
sor
1 -
data
err
atic
, in
term
itten
t or
inco
rrec
t
Det
ectio
n of
inva
lid d
uty-
cycl
e/pu
lse-
wid
th a
t PW
M
sign
al 1
A fa
ilure
is s
et a
fter
250
ms
if th
e du
ty c
ycle
of P
WM
1 is
not
in
the
rang
e 6-
97%
(30
0 µs
-485
0 µs
).Fa
ilure
will
be
rese
t if d
uty
cycl
e is
with
in ra
nge
9,5-
94%
(47
5 µs
-470
0 µs
) ag
ain.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1067
- 4
= B
rake
Sig
nal
Sen
sor
1 -
volta
ge b
elow
no
rmal
or
shor
ted
low
Det
ectio
n of
per
man
ent l
ow
leve
l at P
WM
sig
nal 1
A fa
ilure
is d
etec
ted
afte
r 20
0 m
s if
the
PW
M1
sign
al is
on
perm
anen
t low
leve
l.•
Che
ck fo
r co
rrec
t wiri
ng o
f FB
V. (
Is th
ere
an in
terr
uptio
n? A
sho
rt
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1067
- 5
= B
rake
Sig
nal
Sen
sor
1 -
curr
ent b
elow
no
rmal
or
open
circ
uit
Det
ectio
n of
ope
n lo
ad a
t P
WM
sig
nal 1
A fa
ilure
is d
etec
ted
afte
r 20
0 m
s if
the
PW
M1
sign
al h
as o
pen
load
.R
emar
k: T
his
caus
es a
per
man
ent h
igh
leve
l of t
he s
igna
l.
• C
heck
for
corr
ect p
aram
eter
set
ting
(driv
er d
eman
d se
nsor
type
).•
Che
ck fo
r co
rrec
t wiri
ng o
f FB
V. (
Is th
ere
an in
terr
uptio
n? A
sho
rt
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1067
- 5
= B
rake
Sig
nal
Sen
sor
1 -
curr
ent b
elow
no
rmal
or
open
circ
uit
Det
ectio
n of
per
man
ent
high
leve
l at P
WM
sig
nal 1
A fa
ilure
is d
etec
ted
afte
r 20
0 m
s if
the
PW
M1
sign
al is
on
perm
anen
t hig
h le
vel.
• C
heck
for
corr
ect p
aram
eter
set
ting
(driv
er d
eman
d se
nsor
type
).•
Che
ck fo
r co
rrec
t wiri
ng o
f FB
V. (
Is th
ere
an in
terr
uptio
n? A
sho
rt
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1067
- 8
= B
rake
Sig
nal
Sen
sor
1 -
abno
rmal
fr
eque
ncy,
pul
se w
idth
or
per
iod
Det
ectio
n of
inva
lid
freq
uenc
y at
PW
M s
igna
l 1A
failu
re is
det
ecte
d af
ter
250
ms
if th
e fr
eque
ncy
of th
e P
WM
1 si
gnal
is o
utsi
de th
e ra
nge:
- 19
4 H
z-20
2 H
z (o
ld F
BV
ver
sion
, nom
inal
freq
uenc
y 19
8 H
z).
- 18
4 H
z-19
2 H
z (n
ew F
BV
ver
sion
, nom
inal
freq
uenc
y 18
8 H
z).
• C
heck
for
corr
ect t
ype
of F
BV
(fo
ot b
rake
val
ve).
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
4013144a
5 SPN FMI Fault Codes
29WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.14
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
1067
- 1
3 =
Bra
ke
Sig
nal S
enso
r 1
- ou
t of
calib
ratio
n
Failu
re D
etec
tion
‘Ove
rEqu
ippe
d’ a
t PW
M
sign
al 1
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g (d
river
dem
and
sens
orty
pe).
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1068
- 2
= B
rake
Sig
nal
Sen
sor
2 -
data
err
atic
, in
term
itten
t or
inco
rrec
t
Det
ectio
n of
inva
lid d
uty-
cycl
e/pu
lse-
wid
th a
t PW
M
sign
al 2
A fa
ilure
is s
et a
fter
250
ms
if th
e du
ty c
ycle
of P
WM
2 is
not
in
the
rang
e 6-
97%
(30
0 µs
-485
0 µs
).Fa
ilure
will
be
rese
t if d
uty
cycl
e is
with
in ra
nge
9,5-
94%
(47
5 µs
-470
0 µs
) ag
ain.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1068
- 4
= B
rake
Sig
nal
Sen
sor
2 -
vol
tage
bel
ow
norm
al o
r sh
orte
d lo
w
Det
ectio
n of
per
man
ent l
ow
leve
l at P
WM
sig
nal 2
A fa
ilure
is d
etec
ted
afte
r 20
0 m
s if
the
PW
M2
sign
al is
on
perm
anen
t low
leve
l.•
Che
ck fo
r co
rrec
t wiri
ng o
f FB
V. (
Is th
ere
an in
terr
uptio
n? A
sho
rt
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1068
- 5
= B
rake
Sig
nal
Sen
sor
2 -
curr
ent b
elow
no
rmal
or
open
circ
uit
Det
ectio
n of
ope
n lo
ad a
t P
WM
sig
nal 2
A fa
ilure
is d
etec
ted
afte
r 20
0 m
s, th
e P
WM
2 si
gnal
has
ope
n lo
ad.
Rem
ark:
Thi
s ca
uses
a p
erm
anen
t hig
h le
vel o
f the
sig
nal.
• C
heck
for
corr
ect p
aram
eter
set
ting
(driv
er d
eman
d se
nsor
type
).•
Che
ck fo
r co
rrec
t wiri
ng o
f FB
V. (
Is th
ere
an in
terr
uptio
n? A
sho
rt
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1068
- 5
= B
rake
Sig
nal
Sen
sor
2 -
curr
ent b
elow
no
rmal
or
open
circ
uit
Det
ectio
n of
per
man
ent
high
leve
l at P
WM
sig
nal 2
A fa
ilure
is d
etec
ted
afte
r 20
0 m
s, th
e P
WM
2 si
gnal
is o
n pe
rman
ent h
igh
leve
l.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g (d
river
dem
and
sens
or ty
pe).
• C
heck
for
corr
ect w
iring
of F
BV.
(Is
ther
e an
inte
rrup
tion?
A s
hort
ci
rcui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1068
- 8
= B
rake
Sig
nal
Sen
sor
2 -
abno
rmal
fr
eque
ncy,
pul
se w
idth
or
per
iod
Det
ectio
n of
inva
lid
freq
uenc
y at
PW
M s
igna
l 2A
failu
re is
det
ecte
d af
ter
250
ms
if th
e fr
eque
ncy
of th
e P
WM
2 si
gnal
is o
utsi
de th
e ra
nge:
- 19
8 H
z-20
6 H
z (o
ld F
BV
ver
sion
, nom
inal
freq
uenc
y 20
2 H
z).
- 18
8 H
z-19
6 H
z (n
ew F
BV
ver
sion
, nom
inal
freq
uenc
y 19
2 H
z).
• C
heck
for
corr
ect t
ype
of F
BV
(fo
ot b
rake
val
ve).
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1068
- 1
3 =
Bra
ke
Sig
nal S
enso
r 2
- ou
t of
calib
ratio
n
Failu
re D
etec
tion
‘Ove
rEqu
ippe
d’ a
t PW
M
sign
al 2
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g (d
river
dem
and
sens
or ty
pe).
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1243
- 1
2 =
AB
S F
ully
O
pera
tiona
l - b
ad
inte
llige
nt d
evic
e or
co
mpo
nent
AB
S F
unct
ion
Is N
ot F
ully
O
pera
tiona
lT
his
failu
re is
dis
play
ed if
the
AB
S fu
nctio
n is
tem
pora
rily
deac
tivat
ed (
part
ly o
r co
mpl
etel
y). P
ossi
ble
caus
es a
re:
- A
fter
AB
S-d
eact
ivat
ion
durin
g dr
ivin
g, th
e A
BS
req
uire
s ce
rtai
n dr
ivin
g co
nditi
ons
to b
e m
et p
rior
to b
ecom
ing
activ
e ag
ain?
- The
AB
S fu
nctio
n w
as d
eact
ivat
ed b
y pa
ram
eter
- Im
port
ant p
aram
eter
s fo
r A
BS
-fun
ctio
n ar
e no
t ava
ilabl
e
• T
his
DT
C d
oes
not r
equi
re a
ny r
epai
r. It
is o
nly
driv
er in
form
atio
n.
1351
- 0
= A
ir C
ompr
esso
r -
data
va
lid, b
ut a
bove
nor
mal
op
erat
ing
rang
e (m
ost
seve
re le
vel)
EA
PU
- C
ompr
esso
r/
Ove
rpre
ssur
e Fa
ult
The
sys
tem
pre
ssur
e is
abo
ve th
e pa
ram
etriz
ed m
ax. v
alue
.•
Che
ck p
aram
eter
set
ting.
• C
heck
rel
atin
g pr
essu
re s
enso
rs.
• C
heck
con
trol
line
for
com
pres
sor
(blo
cked
, fau
lty, l
eaky
).•
Che
ck s
olen
oid
bloc
k.
1351
- 6
= A
ir C
ompr
esso
r -
curr
ent
abov
e no
rmal
or
grou
nded
circ
uit
EA
PU
- C
ompr
esso
r/
Com
pres
sor
Not
Off
In Id
leT
he s
yste
m p
ress
ure
rises
eve
n w
ith a
shu
t off
com
pres
sor.
Failu
re d
etec
tion
imm
edia
te a
fter
reac
hing
ove
rpre
ssur
e lim
it.•
Che
ck c
ontr
ol li
ne fo
r co
mpr
esso
r (b
lock
ed, f
aulty
, lea
ky).
• C
heck
sol
enoi
d bl
ock.
1351
- 1
1 =
Air
Com
pres
sor
- fa
ilure
m
ode
not i
dent
ifiab
le/
root
cau
se n
ot k
now
n
EA
PU
- C
ompr
esso
r/
Crit
ical
Air
Con
sum
ptio
nT
he s
yste
m p
ress
ures
bei
ng r
each
ed a
fter
a lo
ng p
erio
d of
pum
ping
are
not
at a
n ap
prop
riate
leve
l tha
t allo
ws
rege
nera
tion.
Fa
ilure
det
ectio
n im
med
iate
afte
r re
achi
ng c
ritic
al a
ir co
nsum
ptio
n lim
it.
• C
heck
the
vehi
cle
for
a cr
itica
l air
cons
umpt
ion
-> a
void
or
stop
us
age
of h
igh
air
cons
umer
s.•
Che
ck v
ehic
le fo
r le
akag
e in
veh
icle
.•
Che
ck c
ompr
esso
r.•
Che
ck s
olen
oid
bloc
k.
4013145a
5 SPN FMI Fault Codes
30 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.15
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
1807
- 0
= S
teer
ing
Whe
el A
ngle
- d
ata
valid
, but
abo
ve n
orm
al
oper
atin
g ra
nge
(mos
t se
vere
leve
l)
Sig
nal O
ffset
Fai
lure
of
Ste
erin
g W
heel
Ang
le
Sen
sing
The
sof
twar
e m
onito
rs th
e de
term
ined
offs
ets.
The
max
imum
al
low
ed o
ffset
val
ues
are
deriv
ed fr
om th
e se
nsor
dat
a sh
eets
.•
Che
ck th
e m
echa
nica
l ste
erin
g el
emen
ts a
t the
fron
t axl
e (d
efec
t, tw
iste
d, fa
ulty
ass
embl
y, e
tc.)
.•
Che
ck th
e m
ount
ing
posi
tion
of th
e st
eerin
g an
gle
sens
or o
n th
e st
eerin
g sh
aft (
cran
ky, f
aulty
ass
embl
y, e
tc.)
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1807
- 2
= S
teer
ing
Whe
el A
ngle
- d
ata
erra
tic, i
nter
mitt
ent o
r in
corr
ect
Ste
erw
heel
Pla
usib
ility
C
heck
Thi
s ch
eck
mon
itors
the
stee
ring
angl
e an
d co
mpa
res
it to
oth
er
sign
als.
It d
etec
ts d
evia
ting
sign
als
whi
ch a
re n
ot p
laus
ible
to
the
curr
ently
driv
en s
ituat
ion.
• C
heck
the
AB
S E
CU
con
cern
ing
corr
ect E
OL
para
met
er (
stee
ring
ratio
, whe
elba
se, w
heel
dia
met
er, e
tc.)
.•
Che
ck w
heth
er th
e S
AS
is c
orre
ctly
ass
embl
ed.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1807
- 2
= S
teer
ing
Whe
el A
ngle
- d
ata
erra
tic, i
nter
mitt
ent o
r in
corr
ect
SA
S S
igna
l is
Not
Pla
usib
leD
etec
tion
1) F
ailu
re is
det
ecte
d w
hen
the
extra
cted
ste
erin
g w
heel
ang
le v
alue
from
CA
N m
essa
ge is
not
bet
wee
n -1
80
degr
ee to
+18
0 de
gree
(le
ss th
an 2
8905
or
grea
ter
than
35
344)
.D
etec
tion
2) E
rror
is d
etec
ted
if th
e ch
ange
in s
teer
ing
whe
el
angl
e is
mor
e th
an 3
0 de
gree
s in
5m
s.
• C
heck
the
AB
S E
CU
con
cern
ing
corr
ect E
OL
para
met
er (
stee
ring
ratio
, whe
elba
se, w
heel
dia
met
er, e
tc.)
.•
Che
ck w
heth
er th
e S
AS
is c
orre
ctly
ass
embl
ed.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1807
- 7
= S
teer
ing
Whe
el A
ngle
-
mec
hani
cal s
yste
m n
ot
resp
ondi
ng c
orre
ctly
or
out o
f adj
ustm
ent
Yaw
rate
Cro
ss C
heck
(S
teer
angl
e)T
he fo
llow
ing
four
yaw
rate
s ar
e co
mpa
red:
- M
easu
red
by th
e ya
w ra
te s
enso
r-
Cal
cula
ted
by la
tera
l acc
eler
atio
n (y
r-aq
)-
Cal
cula
ted
by s
teer
ing
whe
el a
ngle
(yr
-lw)
- C
alcu
late
d by
whe
el s
peed
s fr
ont a
xle
If yr
-lw d
oes
not m
atch
with
the
rest
and
the
rest
itse
lf is
co
nsis
tent
the
yr-lw
is ra
ted
susp
icio
us (
at le
ast 5
°/s
dev
iatio
n).
Afte
rwar
ds, s
peci
al c
ondi
tions
whi
ch le
ad to
not
-mat
chin
g-ya
w-
rate
s ar
e de
tect
ed (
bank
ed c
urve
, ove
rste
erin
g, u
nder
stee
ring)
.
• C
heck
the
AB
S E
CU
con
cern
ing
corr
ect E
OL
para
met
er (
stee
ring
ratio
, whe
elba
se, w
heel
dia
met
er, e
tc.)
.•
Che
ck w
heth
er th
e S
AS
is c
orre
ctly
ass
embl
ed.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1807
- 8
= S
teer
ing
Whe
el A
ngle
- a
bnor
mal
fr
eque
ncy,
pul
se w
idth
or
per
iod
Tim
eout
of S
AS
CA
N
Mes
sage
A ti
meo
ut o
f the
ste
erin
g an
gle
sens
or C
AN
mes
sage
is
dete
cted
afte
r 10
5 m
s.•
Che
ck m
ain
EC
U fo
r co
rrec
t EO
L co
nfigu
ratio
n (s
teer
ing
whe
el
sens
or y
es/n
o).
• C
heck
the
wiri
ng b
etw
een
mai
n E
CU
and
ste
erin
g w
heel
sen
sor.
• C
heck
the
volta
ge s
uppl
y of
the
stee
ring
angl
e se
nsor
.•
Che
ck th
e st
eerin
g w
heel
sen
sor.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1807
- 9
= S
teer
ing
Whe
el A
ngle
- a
bnor
mal
up
date
rate
Ste
erin
g W
heel
Ang
le
Min
imum
Dyn
amic
Fai
lure
The
sig
nal o
f the
ste
erin
g w
heel
ang
le is
ext
rem
ely
cons
tant
(m
inim
um d
ynam
ic fa
ilure
).•
Che
ck if
SA
S is
mec
hani
cally
con
nect
ed to
the
stee
ring
colu
mn.
(D
oes
it ro
tate
?)•
Che
ck s
teer
ing
angl
e se
nsor
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1807
- 1
2 =
Ste
erin
g W
heel
Ang
le -
bad
in
telli
gent
dev
ice
or
com
pone
nt
Err
or In
dica
tion
of S
AS
S
igna
lIf
stee
ring
whe
el a
ngle
val
ue is
bet
wee
n 0x
FE
00 a
nd
0xF
EF
F(in
clud
ing)
or
whe
n th
e st
eerin
g w
heel
ang
le ra
nge
coun
ter
equa
ls 0
x3E
, the
n th
is fa
ilure
will
be
dete
cted
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1807
- 1
3 =
Ste
erin
g W
heel
Ang
le -
out
of
calib
ratio
n
Failu
re D
etec
tion
‘Ove
rEqu
ippe
d’ fo
r S
teer
ing
Ang
le S
enso
r
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g (S
AS
yes
/no)
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1807
- 1
4 =
Ste
erin
g W
heel
Ang
le -
spe
cial
in
stru
ctio
ns
Con
stan
t Mes
sage
Cou
nter
of
SA
S C
AN
Mes
sage
Whe
n m
essa
ge c
ount
er v
alue
rec
eive
d fr
om S
AS
CA
N
mes
sage
rem
ains
con
stan
t for
180
ms,
then
mes
sage
cou
nter
fa
ilure
will
be
dete
cted
.
• C
heck
the
mai
n E
CU
con
cern
ing
corr
ect E
OL
para
met
er (
stee
ring
whe
el s
enso
r ty
pe).
• C
heck
whe
ther
the
corr
ect S
AS
type
is a
ssem
bled
at t
he v
ehic
le.
• C
heck
the
stee
ring
angl
e se
nsor
/rep
lace
the
stee
ring
angl
e se
nsor
.•
Che
ck th
e m
ain
EC
U.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
4013146a
5 SPN FMI Fault Codes
31WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.16D
TC S
PN
FM
IFa
ilure
Det
ectio
n N
ame
Failu
re D
etec
tion
Des
crip
tion
Rep
air
1807
- 1
7 =
Ste
erin
g W
heel
Ang
le -
dat
a va
lid, b
ut b
elow
nor
mal
op
erat
ing
rang
e (le
ast
seve
re le
vel)
Sig
nal N
ot A
vaila
ble
Indi
catio
n of
SA
S S
igna
lIf
stee
ring
whe
el a
ngle
val
ue is
bet
wee
n 0x
FF
00 a
nd 0
xFF
FF
(in
clud
ing)
or
whe
n th
e st
eerin
g w
heel
ang
le ra
nge
coun
ter
equa
ls 0
x3F
con
tinuo
usly
for
1 se
cond
, the
n th
is fa
ilure
will
be
dete
cted
.
• C
heck
if s
teer
ing
angl
e se
nsor
is c
onfig
ured
and
cal
ibra
ted
corr
ectly
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1807
- 1
8 =
Ste
erin
g W
heel
Ang
le -
dat
a va
lid, b
ut b
elow
nor
mal
op
erat
ing
rang
e (m
oder
atel
y se
vere
leve
l)
Neu
tral V
alue
Det
ectio
n (S
teer
angl
e)A
failu
re is
det
ecte
d if
the
targ
et y
aw ra
te (
from
SA
S)
stay
s ne
ar z
ero
and
the
actu
al s
enso
r ya
w ra
te a
nd th
e ya
w ra
te
calc
ulat
ed fr
om th
e la
tera
l acc
eler
atio
n ar
e ab
ove
the
dete
ctio
n th
resh
old
(e.g
. 5ø
/s).
• C
heck
the
mec
hani
cal c
onne
ctio
n be
twee
n st
eerin
g an
gle
sens
or
and
stee
ring
shaf
t (lo
osen
ed?)
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1807
- 1
9 =
Ste
erin
g W
heel
Ang
le -
rec
eive
d ne
twor
k da
ta in
err
or
Inva
lid C
heck
sum
of S
AS
C
AN
Mes
sage
Thi
s fa
ilure
is p
rodu
ced
whe
n th
e ch
ecks
um v
alue
rec
eive
d in
st
eerin
g w
heel
ang
le s
enso
r C
AN
mes
sage
doe
s no
t mat
ch
with
che
cksu
m c
alcu
late
d fr
om d
ata
cont
ent o
f the
CA
N
mes
sage
.
• C
heck
the
mai
n E
CU
con
cern
ing
corr
ect E
OL
para
met
er (
stee
ring
whe
el s
enso
r ty
pe).
• C
heck
whe
ther
the
corr
ect S
AS
type
is a
ssem
bled
at t
he v
ehic
le.
• C
heck
the
stee
ring
angl
e se
nsor
and
mai
n E
CU
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1807
- 3
1 =
Ste
erin
g W
heel
Ang
le -
con
ditio
n ex
ists
Inva
lid S
tatu
s of
SA
S
Sig
nal
Thi
s fa
ilure
is p
rodu
ced
whe
n th
e st
eerin
g w
heel
ang
le s
enso
r se
nds
‘not
cal
ibra
ted
stat
e’ o
r ‘no
t act
ive
stat
e’.
• C
heck
if s
teer
ing
angl
e se
nsor
is c
onfig
ured
and
cal
ibra
ted
corr
ectly
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1808
- 1
= Y
aw R
ate
- da
ta v
alid
, but
bel
ow
norm
al o
pera
ting
rang
e (m
ost s
ever
e le
vel)
Min
imum
Dyn
amic
Fai
lure
/Ya
w R
ate
Thi
s fa
ilure
indi
cate
s an
act
ive
min
imal
dyn
amic
failu
re fo
r th
e ya
w ra
te s
enso
r.T
his
failu
re is
set
whe
n th
e er
ror
flag
insi
de th
e E
SC
1 m
essa
ge
is s
et (
ES
C1:
Byt
e 3
Bit
1) fo
r a
cert
ain
time.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1808
- 2
= Y
aw R
ate
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Ran
ge C
heck
Fai
lure
of
Yaw
Rat
e S
enso
r S
igna
lA
failu
re is
det
ecte
d if
the
yaw
-rat
e ex
ceed
s a
cert
ain
max
imum
va
lue.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1808
- 3
= Y
aw R
ate
- vo
ltage
abo
ve n
orm
al o
r sh
orte
d hi
gh
Drif
t Fai
lure
of Y
aw R
ate
Sen
sor
Sig
nal (
Sta
ndst
ill)
The
yaw
rate
sig
nal d
rifts
in s
tand
still
mor
e th
an a
per
mis
sibl
e lim
it.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1808
- 5
= Y
aw R
ate
- cu
rren
t bel
ow n
orm
al o
r op
en c
ircui
t
Offs
et F
ailu
re o
f Yaw
Rat
e S
enso
r S
igna
lT
he s
oftw
are
mon
itors
the
dete
rmin
ed o
ffset
s. T
he m
axim
um
allo
wed
offs
et v
alue
s ar
e de
rived
from
the
sens
or d
ata
shee
ts.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1808
- 6
= Y
aw R
ate
- cu
rren
t abo
ve n
orm
al o
r gr
ound
ed c
ircui
t
Drif
t Fai
lure
of Y
aw R
ate
Sen
sor
Sig
nal (
Driv
ing)
The
yaw
rate
sig
nal d
rifts
dur
ing
driv
ing
mor
e th
an a
pe
rmis
sibl
e lim
it.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1808
- 7
= Y
aw R
ate
- m
echa
nica
l sys
tem
not
re
spon
ding
cor
rect
ly o
r ou
t of a
djus
tmen
t
Faul
ty S
ign
betw
een
Yaw
R
ate
and
Ste
eran
gle
A fa
ilure
is s
et if
the
sign
bet
wee
n th
e ta
rget
yaw
rate
(st
eerin
g w
heel
sen
sor)
and
the
sens
or y
aw ra
te is
faul
ty.
Prin
cipl
e: C
alcu
late
the
ratio
bet
wee
n th
e ta
rget
yaw
rate
and
th
e se
nsor
yaw
rate
. If t
he ra
tio is
neg
ativ
e (-
0,6
up to
-1,
4) fo
r bo
th tu
rnin
g di
rect
ion
a fa
ilure
sha
ll be
indi
cate
d.
• C
heck
EO
L pa
ram
eter
s fo
r m
ount
ing
dire
ctio
n (E
SC
mod
ule)
.•
Che
ck fo
r co
rrec
t mou
ntin
g di
rect
ion
(ass
embl
y po
sitio
n) o
f ES
C
mod
ule.
• C
heck
for
corr
ect m
ount
ing
dire
ctio
n of
ste
erin
g an
gle
sens
or.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1808
- 1
1 =
Yaw
Rat
e -
failu
re m
ode
not
iden
tifiab
le/r
oot c
ause
not
kn
own
Pla
usib
ility
Che
ck o
f Yaw
R
ate
Sig
nal (
Stra
ight
D
rivin
g)
Pla
usib
ility
che
ck o
f the
act
ual y
aw ra
te w
hile
driv
ing
stra
ight
un
der
stab
le c
ondi
tions
. If t
he v
ehic
le is
driv
ing
stra
ight
und
er
stab
le c
ondi
tion
and
the
actu
al y
aw ra
te is
hig
her
than
thre
shol
d (e
.g. 6
* p
i /18
0), a
n er
ror
is s
et.
• C
heck
for
corr
ect a
ssem
bly
posi
tion
of E
SC
mod
ule.
• C
heck
ES
C m
odul
e.•
Che
ck s
teer
ing
angl
e se
nsor
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1808
- 1
2 =
Yaw
Rat
e -
bad
inte
llige
nt d
evic
e or
co
mpo
nent
ES
C M
odul
e Fa
ilure
Fla
g ‘Y
aw R
ate
Sen
sor’
Thi
s fa
ilure
indi
cate
s th
at th
e ya
w ra
te s
enso
r in
side
the
ES
C
indi
cate
s an
err
or.
Thi
s fa
ilure
is s
et w
hen
the
erro
r in
dica
tion
flag
insi
de th
e E
SC
1 m
essa
ge is
set
(E
SC
1 M
ultip
lexe
r =
0x0
(Mul
tiple
xer
Byt
e 0
Bit
4-7)
and
Byt
e 1
Bit
1 is
set
to o
ne).
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
4013147a
5 SPN FMI Fault Codes
32 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.17
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
1808
- 1
3 =
Yaw
Rat
e -
out o
f cal
ibra
tion
Sca
ling
Failu
re D
etec
tion
(Yaw
Rat
e an
d S
teer
angl
e)D
etec
tion
of s
calin
g fa
ilure
s be
twee
n th
e ta
rget
yaw
rate
and
th
e ac
tual
yaw
rate
. T
he ra
tio b
etw
een
the
targ
et y
aw ra
te a
nd th
e ac
tual
yaw
rate
ha
s to
be
outs
ide
the
thre
shol
d ra
nge
(0.7
to 1
.3)
and
not i
n th
e ne
gativ
e ra
nge
-0,7
to -
1,3,
and
the
trus
t cou
nter
val
ue h
as to
be
set
to z
ero.
The
trus
t cou
nter
will
be
incr
emen
ted
to a
max
imum
of 6
0 se
cond
s if
the
sens
or s
igna
l is
insi
de th
e th
resh
old
rang
e.
• C
heck
EO
L pa
ram
eter
for
mou
ntin
g-di
rect
ion
of E
SC
mod
ule.
• C
heck
for
corr
ect m
ount
ing
dire
ctio
n (a
ssem
bly
posi
tion)
of E
SC
m
odul
e.•
Che
ck th
e E
SC
mod
ule.
• C
heck
the
stee
ring
angl
e se
nsor
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1808
- 1
4 =
Yaw
Rat
e -
spec
ial i
nstr
uctio
nsYa
w R
ate
Cro
ss C
heck
(Y
aw R
ate
Sig
nal)
The
follo
win
g fo
ur y
aw ra
tes
are
com
pare
d:
- M
easu
red
by th
e ya
w ra
te s
enso
r-
Cal
cula
ted
by la
tera
l acc
eler
atio
n (y
r-aq
)-
Cal
cula
ted
by s
teer
ing
whe
el a
ngle
- C
alcu
late
d by
whe
el s
peed
s fr
ont a
xle
If yr
doe
s no
t mat
ch w
ith th
e re
st a
nd th
e re
st it
self
is
cons
iste
nt, t
he y
r is
rate
d su
spic
ious
(at
leas
t 5°/
s de
viat
ion)
. A
fterw
ards
, spe
cial
con
ditio
ns w
hich
lead
to n
ot-m
atch
ing-
yaw
-ra
tes
are
dete
cted
(ba
nked
cur
ve, o
vers
teer
ing,
und
erst
eerin
g,
...).
• C
heck
the
AB
S E
CU
con
cern
ing
corr
ect E
OL
para
met
er (
stee
ring
ratio
, whe
elba
se, w
heel
dia
met
er, e
tc.)
.•
Che
ck w
heth
er th
e E
SC
mod
ule
is a
ssem
bled
in c
orre
ct p
ositi
on.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1808
- 1
7 =
Yaw
Rat
e -
data
val
id, b
ut b
elow
no
rmal
ope
ratin
g ra
nge
(leas
t sev
ere
leve
l)
Neu
tral V
alue
Det
ectio
n (Y
aw R
ate)
The
act
ual y
aw ra
te (
from
the
yaw
rate
sen
sor)
doe
s no
t fol
low
th
e ta
rget
yaw
rate
and
the
yaw
rate
der
ived
from
the
late
ral
acce
lera
tion.
Act
ual y
aw ra
te is
nea
r ze
ro a
nd d
iffer
ence
bet
wee
n th
e ac
tual
ya
w ra
te a
nd th
e ta
rget
yaw
rate
and
yaw
rate
from
late
ral
acce
lera
tion
is h
ighe
r th
an th
e th
resh
old
(e.g
. 5 ø
/s).
• C
heck
EO
L pa
ram
eter
for
mou
ntin
g di
rect
ion
of E
SC
mod
ule.
• C
heck
for
corr
ect m
ount
ing
dire
ctio
n (a
ssem
bly
posi
tion)
of E
SC
m
odul
e.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1808
- 1
9 =
Yaw
Rat
e -
rece
ived
net
wor
k da
ta
in e
rror
Pla
usib
ility
Che
ck o
f Yaw
R
ate
Sig
nal (
Cur
ve)
Pla
usib
ility
che
ck w
hile
driv
ing
a cu
rve.
The
act
ual y
aw ra
te
will
be
com
pare
d to
the
targ
et y
aw ra
te, y
aw ra
te fr
om la
tera
l ac
cele
ratio
n an
d th
e ya
w ra
te fr
om th
e fr
ont a
xle
whe
el s
peed
s.T
his
func
tiona
lity
is d
ivid
ed in
to tw
o pa
rts.
Det
ectio
n un
der
stab
le c
ondi
tions
and
und
er u
nsta
ble
cond
ition
s.
• C
heck
the
ES
C m
odul
e.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1808
- 2
2 =
Yaw
Rat
e -
rese
rved
(22
)P
laus
ibili
ty b
etw
een
Fron
t A
xle
Spe
ed a
nd Y
aw R
ate
Sen
sor
Sig
nal
The
failu
re is
det
ecte
d if
the
yaw
rate
(ca
lcul
ated
by
the
fron
t w
heel
spe
ed s
igna
ls)
diffe
rs fr
om th
e m
easu
red
yaw
rate
.•
Whe
n tir
es w
ere
chan
ged,
the
spee
dom
eter
mus
t be
calib
rate
d to
th
e ne
w ti
re d
imen
sion
s. -
Che
ck th
e T
CO
sig
nal (
func
tion
of s
peed
omet
er).
-Is
the
TC
O s
peed
sig
nal c
orre
ctly
cal
ibra
ted?
-C
heck
the
vehi
cle-
spec
ific
para
met
ers
of th
e sp
eedo
met
er.
• T
he A
BS
EC
U m
ust h
ave
corr
ect p
aram
eter
s. -
Che
ck th
e pa
ram
eter
s in
the
AB
S E
CU
(sp
eedo
met
er s
igna
l so
urce
, tire
dim
ensi
ons)
.•
The
ES
C fu
nctio
n re
quire
s a
corr
ect a
ssem
bly
of th
e E
SC
mod
ule.
-C
heck
the
asse
mbl
y po
sitio
n of
the
ES
C m
odul
e (m
echa
nica
l ha
rdw
are
codi
ng b
etw
een
ES
C m
odul
e an
d ve
hicl
e-fra
me)
. -
Che
ck th
e co
rrec
t ele
ctric
con
nect
ion
of th
e E
SC
mod
ule.
-C
heck
the
fittin
g of
the
ES
C m
odul
e.
1809
- 1
= L
ater
al
Acc
eler
atio
n -
data
va
lid, b
ut b
elow
nor
mal
op
erat
ing
rang
e (m
ost
seve
re le
vel)
Min
imum
Dyn
amic
Fai
lure
/La
tera
l Acc
eler
atio
nT
his
failu
re in
dica
tes
an a
ctiv
e m
inim
al d
ynam
ic fa
ilure
for
the
late
ral a
ccel
erat
ion
sens
or.
Thi
s fa
ilure
is s
et w
hen
the
erro
r fla
g in
side
the
ES
C1
mes
sage
is
set
(E
SC
1: B
yte
3 B
it0)
for
a ce
rtai
n tim
e.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1809
- 2
= L
ater
al
Acc
eler
atio
n -
data
er
ratic
, int
erm
itten
t or
inco
rrec
t
Ran
ge C
heck
of
Late
ral-
and
Long
itudi
nal
Acc
eler
atio
n
Ran
ge c
heck
for
the
late
ral a
nd lo
ngitu
dina
l acc
eler
atio
n va
lue.
• C
heck
EO
L pa
ram
eter
for
mou
ntin
g di
rect
ion
of E
SC
mod
ule.
• C
heck
for
corr
ect m
ount
ing
dire
ctio
n (a
ssem
bly
posi
tion)
of E
SC
m
odul
e.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
4013148a
5 SPN FMI Fault Codes
33WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.18D
TC S
PN
FM
IFa
ilure
Det
ectio
n N
ame
Failu
re D
etec
tion
Des
crip
tion
Rep
air
1809
- 7
= L
ater
al
Acc
eler
atio
n - m
echa
nica
l sy
stem
not
res
pond
ing
corr
ectly
or
out o
f ad
just
men
t
Faul
ty S
ign
betw
een
Late
ral A
ccel
erat
ion
and
Ste
eran
gle
Det
ectio
n of
sig
n fa
ilure
s be
twee
n th
e ta
rget
yaw
rate
(st
eerin
g w
heel
sen
sor)
and
the
late
ral a
ccel
erat
ion.
P
rinci
ple:
Cal
cula
te th
e ra
tio b
etw
een
the
targ
et y
aw ra
te a
nd
the
yaw
rate
from
the
late
ral a
ccel
erat
ion.
If th
e ra
tio is
neg
ativ
e fo
r bo
th tu
rnin
g di
rect
ion,
a fa
ilure
sha
ll be
indi
cate
d.S
et C
ondi
tion:
The
ratio
is n
egat
ive
and
insi
de th
e ra
tio
tole
ranc
e th
resh
old
(-0,
6 up
to -
1,4)
.
• C
heck
EO
L pa
ram
eter
s fo
r m
ount
ing
dire
ctio
n (E
SC
mod
ule)
.•
Che
ck fo
r co
rrec
t mou
ntin
g di
rect
ion
(ass
embl
y po
sitio
n) o
f ES
C
mod
ule.
• C
heck
for
corr
ect m
ount
ing
dire
ctio
n of
ste
erin
g an
gle
sens
or.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1809
- 1
2 =
Late
ral
Acc
eler
atio
n -
bad
inte
llige
nt d
evic
e or
co
mpo
nent
ES
C M
odul
e Fa
ilure
Fla
g ‘L
ater
al A
ccel
erat
ion
Sen
sor’
Thi
s fa
ilure
indi
cate
s th
at th
e la
tera
l acc
eler
atio
n se
nsor
insi
de
the
ES
C m
odul
e in
dica
tes
an e
rror
.T
his
failu
re is
set
whe
n th
e er
ror
indi
catio
n fla
g in
side
the
ES
C1
mes
sage
is s
et (
ES
C1
Mul
tiple
xer
= 0x
0 (M
ultip
lexe
r B
yte
0 B
it 4
- 7)
and
Byt
e 1
Bit
0 is
set
to o
ne).
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1809
- 1
4 =
Late
ral
Acc
eler
atio
n -
spec
ial
inst
ruct
ions
Yaw
Rat
e C
ross
Che
ck
(Lat
eral
Acc
eler
atio
n)T
he fo
llow
ing
four
yaw
rate
s ar
e co
mpa
red:
- M
easu
red
by th
e ya
w ra
te s
enso
r-
Cal
cula
ted
by la
tera
l acc
eler
atio
n (y
r-aq
)-
Cal
cula
ted
by s
teer
ing
whe
el a
ngle
- C
alcu
late
d by
whe
el s
peed
s fr
ont a
xlea
re c
ompa
red
If yr
-aq
does
not
mat
ch w
ith th
e re
st a
nd th
e re
st it
self
is c
onsi
sten
t, th
e yr
-aq
is ra
ted
susp
icio
us (
at le
ast 5
°/s
de
viat
ion)
. Afte
rwar
ds, s
peci
al c
ondi
tions
whi
ch le
ad to
not
-m
atch
ing-
yaw
-rat
es a
re d
etec
ted
(ban
ked
curv
e, o
vers
teer
ing,
un
ders
teer
ing,
...)
.
• C
heck
the
AB
S E
CU
con
cern
ing
corr
ect E
OL
para
met
er (
stee
ring
ratio
, whe
elba
se, w
heel
dia
met
er, e
tc.)
.•
Che
ck w
heth
er th
e E
SC
mod
ule
is a
ssem
bled
in c
orre
ct p
ositi
on•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1809
- 1
5 =
Late
ral
Acc
eler
atio
n -
data
va
lid, b
ut a
bove
nor
mal
op
erat
ing
rang
e (le
ast
seve
re le
vel)
Sig
nal O
ffset
Fai
lure
of
Lat
eral
Acc
eler
atio
n S
ensi
ng
The
offs
et v
alue
of t
he s
enso
r is
eva
luat
ed p
erm
anen
tly d
urin
g dr
ivin
g st
raig
ht-o
n. T
his
offs
et v
alue
is u
sed
for
a co
rrec
tion
of
the
late
ral a
ccel
erat
ion
info
rmat
ion.
An
offs
et fa
ilure
is d
etec
ted
if th
e di
ffere
nce
betw
een
sens
or
sign
al a
nd la
tera
l acc
eler
atio
n ca
lcul
ated
by
yaw
rate
exc
eeds
1,
7 m
/s².
The
failu
re d
etec
tion
is o
nly
activ
e if
vehi
cle
spee
d is
hi
gher
than
10
km/h
and
if v
ehic
le is
driv
ing
stra
ight
-on.
• C
heck
EO
L pa
ram
eter
for
mou
ntin
g di
rect
ion
of E
SC
mod
ule.
• C
heck
for
corr
ect m
ount
ing
dire
ctio
n (a
ssem
bly
posi
tion)
of E
SC
m
odul
e.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1809
- 1
7 =
Late
ral
Acc
eler
atio
n -
data
va
lid, b
ut b
elow
nor
mal
op
erat
ing
rang
e (le
ast
seve
re le
vel)
Neu
tral V
alue
Det
ectio
n (L
ater
al A
ccel
erat
ion)
The
yaw
rate
cal
cula
ted
from
the
late
ral a
ccel
erat
ion
does
not
fo
llow
the
actu
al y
aw ra
te a
nd th
e ta
rget
yaw
rate
.•
Che
ck E
OL
para
met
er fo
r m
ount
ing
dire
ctio
n of
ES
C m
odul
e.•
Che
ck fo
r co
rrec
t mou
ntin
g di
rect
ion
(ass
embl
y po
sitio
n) o
f ES
C
mod
ule.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1809
- 2
0 =
Late
ral
Acc
eler
atio
n -
data
drif
ted
high
Sig
nal D
rift F
ailu
re o
f La
tera
l Acc
eler
atio
n S
ensi
ng
The
late
ral a
ccel
erat
ion
sign
al w
as d
riftin
g ou
tsid
e th
e va
lid
rang
e.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1810
- 0
= L
ongi
tudi
nal
Acc
eler
atio
n -
data
va
lid, b
ut a
bove
nor
mal
op
erat
ing
rang
e (m
ost
seve
re le
vel)
Offs
et F
ailu
re o
f Lo
ngitu
dina
l Acc
eler
atio
n S
enso
r S
igna
l
Thi
s fa
ilure
indi
cate
s a
faul
ty o
ffset
val
ue o
f the
long
itudi
nal
acce
lera
tion
sens
or.
• C
heck
EO
L pa
ram
eter
for
mou
ntin
g di
rect
ion
of E
SC
mod
ule.
• C
heck
for
corr
ect m
ount
ing
dire
ctio
n (a
ssem
bly
posi
tion)
of E
SC
m
odul
e.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1810
- 1
= L
ongi
tudi
nal
Acc
eler
atio
n -
data
va
lid, b
ut b
elow
nor
mal
op
erat
ing
rang
e (m
ost
seve
re le
vel)
Min
imum
Dyn
amic
Fai
lure
/Lo
ngitu
dina
l Acc
eler
atio
nT
his
failu
re in
dica
tes
an a
ctiv
e m
inim
al d
ynam
ic fa
ilure
for
the
long
itudi
nal a
ccel
erat
ion
sens
or.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
1810
- 2
= L
ongi
tudi
nal
Acc
eler
atio
n -
data
er
ratic
, int
erm
itten
t or
inco
rrec
t
Pla
usib
ility
Fai
lure
of
Long
itudi
nal A
ccel
erat
ion
Sen
sor
Sig
nal
Thi
s fa
ilure
indi
cate
s a
plau
sibi
lity
failu
re o
f the
long
itudi
nal
acce
lera
tion
sens
or (
e.g.
cha
ract
eris
tic n
ot c
orre
ct).
• C
heck
EO
L pa
ram
eter
for
mou
ntin
g di
rect
ion
of E
SC
mod
ule.
• C
heck
for
corr
ect m
ount
ing
dire
ctio
n (a
ssem
bly
posi
tion)
of E
SC
m
odul
e.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
4013149a
5 SPN FMI Fault Codes
34 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.19
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
1810
- 7
= L
ongi
tudi
nal
Acc
eler
atio
n - m
echa
nica
l sy
stem
not
res
pond
ing
corr
ectly
or
out o
f ad
just
men
t
Ass
embl
y Fa
ilure
of
Long
itudi
nal A
ccel
erat
ion
Sen
sor
Sig
nal
Thi
s fa
ilure
indi
cate
s a
faul
ty a
ssem
bly
of th
e lo
ngitu
dina
l ac
cele
ratio
n se
nsor
(i.e
. mou
ntin
g di
rect
ion
not c
orre
ct).
• C
heck
EO
L pa
ram
eter
for
mou
ntin
g di
rect
ion
of E
SC
mod
ule.
• C
heck
for
corr
ect m
ount
ing
dire
ctio
n (a
ssem
bly
posi
tion)
of E
SC
m
odul
e.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
1810
- 1
2 =
Long
itudi
nal
Acc
eler
atio
n -
bad
inte
llige
nt d
evic
e or
co
mpo
nent
ES
C M
odul
e Fa
ilure
Fla
g ‘L
ongi
tudi
nal A
ccel
erat
ion
Sen
sor’
Thi
s fa
ilure
indi
cate
s th
at th
e lo
ngitu
dina
l acc
eler
atio
n se
nsor
in
side
the
ES
C m
odul
e in
dica
tes
an e
rror
.T
his
failu
re is
set
whe
n th
e er
ror
indi
catio
n fla
g in
side
the
ES
C2
mes
sage
is s
et (
ES
C2
Mul
tiple
xer
= 0x
0 (M
ultip
lexe
r B
yte
0 B
it 4
- 7)
and
Byt
e 1
Bit
0 is
set
to o
ne).
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
3509
- 3
= S
enso
r su
pply
-
volta
ge a
bove
nor
mal
or
shor
ted
high
Failu
re d
etec
tion
‘Sho
rtU
b’
at S
enso
rSup
ply
A p
erm
anen
t hig
h vo
ltage
leve
l (sh
orte
d to
per
man
ent U
B)
at
the
sens
or-s
uppl
y is
det
ecte
d af
ter
igni
tion-
on.
• C
heck
wiri
ng o
f rel
evan
t sen
sors
. (Is
ther
e a
shor
t circ
uit t
o U
B?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
3509
- 4
= S
enso
r su
pply
-
volta
ge b
elow
nor
mal
or
shor
ted
low
Failu
re d
etec
tion
‘Sho
rtG
nd’
at S
enso
rSup
ply
A fa
ilure
is d
etec
ted
afte
r 20
0 m
s if
the
sens
or s
uppl
y is
too
low
(s
hort
ed to
GN
D).
• C
heck
wiri
ng o
f rel
evan
t sen
sors
. (Is
ther
e a
shor
t circ
uit t
o G
ND
?)•
Che
ck r
elev
ant s
enso
rs. (
Is th
ere
an in
tern
al s
hort
circ
uit t
o G
ND
? E
lect
ric c
urre
nt to
o hi
gh?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
5202
10 -
8 =
ES
C-
mod
ule
- ab
norm
al
freq
uenc
y, p
ulse
wid
th
or p
erio
d
ES
C M
odul
e C
AN
M
essa
ges/
Tim
eout
Fai
lure
A ti
meo
ut o
f the
ES
C m
odul
e C
AN
mes
sage
is d
etec
ted
afte
r 10
5 m
s.•
Che
ck m
ain
EC
U fo
r co
rrec
t EO
L co
nfigu
ratio
n (E
SC
mod
ule
yes/
no).
• C
heck
the
wiri
ng b
etw
een
mai
n E
CU
and
ES
C m
odul
e.•
Che
ck th
e vo
ltage
sup
ply
of th
e E
SC
mod
ule.
• C
heck
the
ES
C m
odul
e.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5202
10 -
10
= E
SC
-m
odul
e -
abno
rmal
rate
of
cha
nge
ES
C M
odul
e C
AN
M
essa
ges/
Blo
ckda
ta
Cou
nter
Fai
lure
A fa
ilure
is d
etec
ted
if th
e m
essa
ge c
ount
er in
side
the
ES
C1
(Byt
e 0
- B
it 4
to B
it 7)
or
insi
de th
e E
SC
2 (B
yte
0 -
Bit
4 to
Bit
7) is
not
cor
rect
ly in
crem
ente
d.
• C
heck
the
ES
C m
odul
e.•
Che
ck th
e m
ain
EC
U.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
5202
10 -
12
= E
SC
-m
odul
e -
bad
inte
llige
nt
devi
ce o
r co
mpo
nent
ES
C M
odul
e Fa
ilure
Fla
g ‘In
tern
al E
rror
’T
his
failu
re in
dica
tes
that
the
ES
C s
enso
r ha
s re
cogn
ized
an
inte
rnal
err
or.
Thi
s fa
ilure
is s
et w
hen
the
inte
rnal
err
or in
dica
tion
flag
insi
de
the
ES
C1
mes
sage
is s
et (
ES
C1
Mul
tiple
xer
= 0x
0 (M
ultip
lexe
r B
yte
0 B
it 4
- 7)
and
Byt
e 1
Bit
3 is
set
to o
ne).
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
5202
10 -
13
= E
SC
-mod
ule
- ou
t of
calib
ratio
n
Failu
re D
etec
tion
‘Ove
rEqu
ippe
d’ fo
r E
SC
m
odul
e
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g (E
SC
yes
/no)
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5202
10 -
14
= E
SC
-m
odul
e -
spec
ial
inst
ruct
ions
CA
N In
com
patib
ility
of t
he
ES
C M
odul
eIt
was
det
ecte
d th
at th
e ch
arac
teris
tic n
umbe
r (C
AN
) of
the
ES
C m
odul
e is
inva
lid.
• Fo
r a
corr
ect f
unct
ion
of th
e br
ake
syst
em, t
he r
ight
com
bina
tion
of b
rake
sys
tem
EC
Us
and
ES
C m
odul
e m
ust b
e as
sem
bled
in
the
vehi
cle.
Ple
ase
read
the
num
bers
of a
ll th
ese
com
pone
nts
and
chec
k th
em fo
r co
mpa
tibili
ty a
gain
st e
ach
othe
r.
5202
10 -
19
= E
SC
-m
odul
e -
rece
ived
ne
twor
k da
ta in
err
or
ES
C M
odul
e C
AN
M
essa
ges/
Che
cksu
m
Failu
re
The
sof
twar
e sh
all s
et th
e fa
ilure
whe
n th
e E
SC
1 C
heck
sum
(E
SC
1 B
yte
0 -
Bit
0 -
3) o
r th
e E
SC
2 C
heck
sum
(E
SC
2 B
yte
0 -
Bit
0 -3
) di
ffers
from
the
inte
rnal
cal
cula
ted
chec
ksum
.
• C
heck
the
ES
C m
odul
e.•
Che
ck th
e m
ain
EC
U.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
5202
13 -
31
= E
SC
-C
alib
ratio
n P
roce
dure
-
cond
ition
exi
sts
ES
C C
alib
ratio
n P
roce
dure
Is
Act
ive
Thi
s fa
ilure
cod
e is
dis
play
ed if
the
calib
ratio
n fu
nctio
n of
the
ES
C is
cur
rent
ly a
ctiv
e.•
Thi
s D
TC
doe
s no
t req
uire
any
rep
air.
It is
onl
y dr
iver
info
rmat
ion.
4013150a
5 SPN FMI Fault Codes
35WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.20D
TC S
PN
FM
IFa
ilure
Det
ectio
n N
ame
Failu
re D
etec
tion
Des
crip
tion
Rep
air
5202
14 -
2 =
Ste
erin
g A
ngle
Rat
io -
dat
a er
ratic
, in
term
itten
t or
inco
rrec
t
Lear
ning
val
ue o
f ste
erin
g ra
tio c
hara
cter
istic
s is
in
corr
ect
With
ste
erin
g an
gle
ratio
ada
ptat
ion
mod
e en
able
d, fa
ilure
can
be
set
whe
n le
arne
d st
eerin
g an
gle
ratio
cor
rect
ion
valu
e ov
er
time
is in
valid
.W
ith s
teer
ing
angl
e ra
tio fr
ee le
arni
ng m
ode
enab
led,
failu
re
dete
ctio
n is
ena
bled
onl
y af
ter
lear
ning
of t
he s
teer
ing
angl
e ra
tio c
urve
is c
ompl
eted
. Fai
lure
can
be
set i
f new
lear
ned
stee
ring
angl
e ra
tio v
alue
s ov
er ti
me
com
pare
d w
ith th
e ca
lcul
ated
ste
erin
g an
gle
ratio
s fr
om w
hat w
as p
revi
ousl
y le
arne
d ha
s de
viat
ed.
With
ste
erin
g an
gle
ratio
no
adap
tatio
n m
ode
enab
led,
failu
re
will
be
set i
f lea
rned
ste
erin
g an
gle
ratio
com
pare
d to
the
calc
ulat
ed s
teer
ing
angl
e ra
tio fr
om p
aram
eter
set
ting
has
devi
ated
.T
his
erro
r de
tect
ion
is e
nabl
ed b
y pa
ram
eter
.
• C
heck
the
AB
S E
CU
con
cern
ing
corr
ect E
SC
-spe
cific
EO
L pa
ram
eter
s (e
.g. s
teer
ing-
ratio
, whe
el b
ase,
toot
h w
heel
teet
h-nu
mbe
rs, t
ire-c
ircum
fere
nce,
etc
.).
• Is
the
vehi
cle
dam
aged
at t
he fr
ont a
xle
(ste
erin
g, a
xle,
etc
.)?
• C
heck
the
ES
C m
odul
e.•
Che
ck th
e st
eerin
g w
heel
ang
le s
enso
r.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5202
16 -
31
= E
SC
fu
nctio
n is
red
uced
(t
raile
r A
BS
not
OK
) -
cond
ition
exi
sts
Red
uced
ES
C F
unct
iona
lity
(Tra
iler
AB
S F
ailu
re)
It w
as d
etec
ted
that
the
traile
r ha
d fa
ulty
AB
S fu
nctio
nalit
y.•
Che
ck th
e A
BS
in th
e tra
iler.
5202
40 -
9 =
Ext
erna
l B
rake
Dem
and
Sys
tem
(V
RD
U)
- ab
norm
al
upda
te ra
te
Ext
erna
l Bra
ke R
eque
st,
Mes
sage
Tim
eout
Err
or w
ill b
e se
t if a
ny o
f the
bel
ow c
ondi
tions
are
sat
isfie
d:-
E1
mes
sage
not
rec
eive
d fo
r 50
ms
whe
n m
essa
ge v
alid
co
unte
r is
gre
ater
than
0 (
indi
cate
s th
at th
e m
essa
ge h
as
been
rec
eive
d at
leas
t onc
e).
- E
4 m
essa
ge n
ot r
ecei
ved
for
50 m
s w
hen
mes
sage
val
id
coun
ter
is g
reat
er th
an 0
(in
dica
tes
that
the
mes
sage
has
be
en r
ecei
ved
at le
ast o
nce)
.
• C
heck
the
failu
re m
emor
y of
the
VR
DU
EC
U a
nd r
epai
r al
l fai
lure
s.•
Che
ck th
e w
iring
of t
he c
hass
is C
AN
dat
a co
nnec
tion
and
the
rela
ting
elec
tric
con
nect
ors
betw
een
AB
S E
CU
and
the
VR
DU
EC
U.
Rem
ark:
VR
DU
= V
ideo
Rad
ar D
ecis
ion
Uni
t
5202
40 -
19
= E
xter
nal
Bra
ke D
eman
d S
yste
m
(VR
DU
) -
rece
ived
ne
twor
k da
ta in
err
or
Ext
erna
l Bra
ke R
eque
st,
Sev
ere
Err
orE
CU
inte
rface
sev
ere
erro
r w
ill b
e se
t if:
- The
CA
N s
igna
ls o
f the
par
amet
eriz
ed in
terfa
ce h
ave
data
er
ror
(che
cksu
m, c
ount
er, f
orm
at in
corr
ect,
mes
sage
con
tent
im
plau
sibl
e) o
r- T
imeo
ut e
rror
occ
urre
d du
ring
exec
utio
n of
the
exte
rnal
re
ques
t.
• C
heck
the
VR
DU
ele
ctro
nic
devi
ce (
is th
ere
an in
tern
al fa
ilure
m
emor
y of
VR
DU
?) a
nd r
epai
r/re
plac
e it,
if n
eces
sary
.•
Che
ck th
e A
BS
EC
U a
nd r
epla
ce it
, if n
eces
sary
. R
emar
k: V
RD
U =
Vid
eo R
adar
Dec
isio
n U
nit
5202
47 -
31
= Fa
ilure
M
emor
y B
it (E
SC
) -
cond
ition
exi
sts
ES
C M
emor
ybit
Was
A
ctiv
ated
A s
enso
r fa
ilure
(ya
w ra
te, l
ater
al a
ccel
erat
ion,
ste
erin
g an
gle)
oc
curr
ed in
the
last
igni
tion
cycl
e an
d ha
s ac
tivat
ed th
e E
SC
m
emor
y fu
nctio
n.
• R
epai
r th
e re
leva
nt s
enso
r fa
ilure
(ya
w ra
te, l
ater
al a
ccel
erat
ion,
st
eerin
g an
gle)
that
is s
tore
d in
err
or m
emor
y.
5202
72 -
13
= E
OL
Par
amet
er E
SC
-F
unct
ion
(Ste
erin
g R
atio
P
aram
eter
s) -
out
of
calib
ratio
n
Ste
erin
g A
ngle
Par
amet
ers
Are
Not
Cor
rect
Con
figur
ed p
aram
eter
val
ue fo
r S
teer
Ag
func
tion
is n
ot v
alid
.W
hen
qual
ity v
alue
of a
ll of
the
para
met
ers
belo
w a
re g
reat
er
than
or
equa
ls 1
0, th
en th
e fa
ilure
det
ectio
n sh
all b
e ac
tivat
ed.
- P
RM
num
Ste
erR
atLr
ngM
od-
PR
Man
gOut
rRi
- P
RM
rSte
erO
utrR
i-
PR
Man
gInr
Ri
- P
RM
rSte
erIn
rRi
- P
RM
angI
nrLe
- P
RM
rSte
erIn
rLe
- P
RM
angO
utrL
e-
PR
MrS
teer
Out
rLe
• C
heck
the
rele
vant
EO
L pa
ram
eter
s an
d co
rrec
t the
m.
5202
90 -
9 =
Fou
r Whe
el
Aux
iliar
y P
arki
ng B
rake
S
yste
m -
abn
orm
al
upda
te ra
te
Mal
func
tion
of A
uxili
ary
Par
kbra
ke F
unct
ion
The
circ
umst
ance
s (s
uppl
y pr
essu
re, e
tc.)
do
not e
nsur
e a
safe
op
erat
ion
of a
uxili
ary
park
bra
ke fu
nctio
n.•
Che
ck if
an
inco
rrec
t driv
er b
ehav
ior
occu
rred
dur
ing
activ
e 4-
whe
el
park
bra
ke fu
nctio
n (ig
nitio
n-of
f, pa
rkbr
ake
rele
ase,
eng
ine
stop
s ru
nnin
g, e
tc.)
.•
Che
ck if
the
supp
ly p
ress
ure
is to
o lo
w.
• C
heck
if th
e fr
ont a
xle
pres
sure
con
trol
is fa
ulty
.
4013151a
5 SPN FMI Fault Codes
36 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.21
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5203
10 -
2 =
Ele
ctro
nic
Air
Dry
er -
dat
a er
ratic
, in
term
itten
t or
inco
rrec
t
EA
PU
- A
irDry
er/P
ress
ure
Sen
sor
Pla
usib
ility
Fau
ltM
inim
um o
ne p
ress
ure
sens
or v
alue
is n
ot p
laus
ible
com
pare
d to
ano
ther
val
ue.
Det
ectio
n tim
e: a
ppro
x. 1
min
ute
with
diff
eren
ce 5
00 m
bar
• C
heck
sen
sor
1 or
sen
sor
2.
5203
10 -
7 =
Ele
ctro
nic
Air
Dry
er -
mec
hani
cal
syst
em n
ot r
espo
ndin
g co
rrec
tly o
r ou
t of
adju
stm
ent
EA
PU
- A
irDry
er/
Reg
ener
atio
n Fa
ult
The
sys
tem
pre
ssur
e do
es n
ot d
rop
durin
g re
gene
ratio
n.
Det
ectio
n tim
e: im
med
iate
at t
he e
nd o
f a r
egen
erat
ion
proc
ess
• C
heck
reg
ener
atio
n or
ifice
(bl
ocke
d?).
• C
heck
sol
enoi
d bl
ock.
• C
heck
sile
ncer
(bl
ocke
d?).
5203
10 -
8 =
Ele
ctro
nic
Air
Dry
er -
abn
orm
al
freq
uenc
y, p
ulse
wid
th
or p
erio
d
EA
PU
- A
irDry
er/F
ail S
afe
Mod
eN
o in
put p
ress
ure
to g
ener
ate
syst
em p
ress
ure
avai
labl
e or
co
mpr
esso
r/re
gene
ratio
n va
lve
failu
re a
ctiv
e.•
Che
ck p
aram
eter
set
ting
(con
figur
atio
n of
sen
sors
, Air1
-mes
sage
co
nfigu
ratio
n).
• C
heck
pre
ssur
e si
gnal
s in
Air1
/Bra
kes
mes
sage
.
5203
10 -
9 =
Ele
ctro
nic
Air
Dry
er -
abn
orm
al
upda
te ra
te
EA
PU
- A
irDry
er/
Mec
hani
cal M
ode
due
to
man
dato
ry C
AN
sig
nals
(e
ngin
e st
ate)
One
of t
he r
ecei
ved
CA
N m
essa
ges
from
the
engi
ne s
yste
m
has
timed
out
or
one
data
is in
valid
.D
etec
tion
time:
app
rox.
4x
cycl
e tim
e
• C
heck
par
amet
er s
ettin
g (c
onfig
urat
ion
of m
anda
tory
CA
N in
puts
).•
Che
ck if
nec
essa
ry C
AN
mes
sage
s ar
e av
aila
ble.
5203
10 -
10
= E
lect
roni
c A
ir D
ryer
- a
bnor
mal
rate
of
cha
nge
EA
PU
- A
irDry
er/V
olum
e C
ompr
esso
r Fa
ult
The
sys
tem
pre
ssur
e re
ache
s a
high
pre
ssur
e le
vel m
uch
too
fast
.D
etec
tion
time:
imm
edia
te a
t the
end
of a
pum
ping
pha
se
• C
heck
par
amet
er s
ettin
g (c
ompr
esso
r ch
arac
teris
tic).
5203
10 -
14
= E
lect
roni
c A
ir D
ryer
- s
peci
al
inst
ruct
ions
EA
PU
- A
irDry
er/N
o A
mbi
ent T
empe
ratu
re
Ava
ilabl
e
The
am
bien
t con
ditio
n m
essa
ge h
as ti
med
out
or
one
data
is
inva
lid.
Det
ectio
n tim
e: a
ppro
x. 4
x cy
cle
time
• C
heck
par
amet
er s
ettin
g (c
onfig
urat
ion
of C
AN
inpu
t: am
bien
t co
nditi
on).
• C
heck
if n
eces
sary
CA
N m
essa
ges
are
avai
labl
e.
5205
01 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 1
Left
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
1 Le
ftU
ndes
irabl
e ju
mps
in w
heel
spe
ed is
rec
ogni
zed
as c
hatte
ring.
W
hen
this
beh
avio
r of
cha
tterin
g is
act
ive
for
cert
ain
time
perio
d, th
e w
heel
spe
ed c
hatte
ring
faul
t will
be
reco
gniz
ed.
Det
ectio
n is
onl
y ac
tive
if ve
hicl
e re
fere
nce
spee
d is
mor
e th
an
15 k
m/h
.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r in
adm
issi
ble
vibr
atio
ns
(ret
urn
sprin
g de
fect
? br
ake
linin
gs lo
osen
ed?)
.
5205
01 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 1
Left
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
1 Le
ftW
hen
a se
nsor
is le
ft un
conn
ecte
d fr
om to
oth
whe
el a
ssem
bly,
no
whe
el s
peed
s ar
e m
easu
red
in th
is p
artic
ular
whe
el,
resu
lting
in la
rger
slip
val
ue o
n th
is w
heel
. Thi
s co
nditi
on w
ill
resu
lt in
per
man
ent s
lip fa
ilure
on
this
whe
el.
Thi
s er
ror
dete
ctio
n is
pos
sibl
e in
thre
e di
ffere
nt w
ays:
Sou
rce
1: B
ased
on
whe
el s
lip s
igna
l (la
mbd
a si
gnal
) fr
om A
BS
co
ntro
l fun
ctio
n.S
ourc
e 2:
Bas
ed o
n w
heel
spe
ed v
alue
s.S
ourc
e 3:
Whe
n se
nsor
sta
tus
is in
valid
due
to h
igh
freq
uenc
y si
gnal
mea
sure
d by
sen
sor.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide?
• C
heck
the
whe
el s
peed
sen
sor
for
corr
ect v
olta
ge o
utpu
t. (I
s vo
ltage
ou
tput
suf
ficie
nt?)
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
01 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 1
Left
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 1
Left
Jum
p do
wn
failu
re is
det
ecte
d w
hen
whe
el s
peed
dro
ps
sudd
enly
to s
tand
still
from
hig
her
spee
ds.
The
failu
re c
an h
appe
n be
caus
e of
larg
er a
ir ga
p be
twee
n to
oth
whe
el a
nd s
enso
r, or
due
to s
enso
r ge
tting
mis
alig
ned
whi
le
driv
ing.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
01 -
10
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
1 Le
ft -
abno
rmal
rate
of c
hang
e
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
1 Le
ftLa
rger
air
gap
betw
een
sens
or a
nd to
oth
whe
el w
ill le
ad to
ju
mp
up fa
ilure
.Ju
mp
up fa
ilure
will
be
dete
cted
whe
n w
heel
s st
art r
otat
ing
from
sta
ndst
ill.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
sens
or
fittin
g lo
ose?
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
4013152a
5 SPN FMI Fault Codes
37WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.22
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
01 -
13
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
1 Le
ft -
out o
f cal
ibra
tion
Impe
rmis
sabl
e T
ire S
ize
Det
ecte
d at
Axl
e 1
Left
Whe
n de
viat
ion
of ti
re s
ize
is g
reat
er th
an th
e al
low
able
lim
it,
the
impe
rmis
sibl
e tir
e si
ze e
rror
sha
ll be
set
for
the
conc
erne
d w
heel
.T
he s
oftw
are
shal
l rep
ort i
mpe
rmis
sibl
e tir
e si
ze e
rror
for
a w
heel
if th
e m
inim
um o
f all
unco
rrec
ted
whe
el s
peed
s in
the
vehi
cle
is g
reat
er th
an 2
0 km
/h.
Whe
n th
e pr
econ
ditio
ns a
re s
atis
fied
with
any
of t
he fo
llow
ing
cond
ition
s, th
en th
e im
perm
issi
ble
tire
size
err
or s
hall
be s
et fo
r th
e co
ncer
ned
whe
el:
- The
diff
eren
ce in
cor
rect
ion
valu
es b
etw
een
the
left
and
right
w
heel
s of
an
axle
exc
eeds
10%
.-
Cor
rect
ion
valu
e of
the
whe
el is
mor
e th
an 1
4%.
- Whe
el s
peed
dev
iatio
n be
twee
n th
e le
ft an
d rig
ht w
heel
s of
an
axle
exc
eeds
10%
.- W
heel
spe
ed d
evia
tion
of th
e w
heel
com
pare
d to
the
aver
age
fron
t axl
e w
heel
spe
ed is
gre
ater
than
14%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
01 -
14
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
1 Le
ft -
spec
ial i
nstr
uctio
ns
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
1 Le
ft
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror
shal
l be
rep
orte
d fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all m
onito
r th
e w
heel
spe
eds
only
whe
n th
e m
inim
um w
heel
spe
ed is
20
km/h
or
high
er.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
devi
atio
n’ e
rror
for
a w
heel
if th
e co
mpe
nsat
ed s
peed
of c
once
rned
whe
el d
evia
tes
from
the
max
imum
com
pens
ated
whe
el s
peed
by
mor
e th
an
10%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
02 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 1
Rig
ht
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
1 R
ight
Und
esira
ble
jum
ps in
whe
el s
peed
is r
ecog
nize
d as
cha
tterin
g.
Whe
n th
is b
ehav
ior
of c
hatte
ring
is a
ctiv
e fo
r a
cert
ain
time
perio
d, th
e w
heel
spe
ed c
hatte
ring
faul
t will
be
reco
gniz
ed.
Det
ectio
n is
onl
y ac
tive
if ve
hicl
e re
fere
nce
spee
d is
mor
e th
an
15 k
m/h
.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r in
adm
issi
ble
vibr
atio
ns
(ret
urn
sprin
g de
fect
? br
ake
linin
gs lo
osen
ed?)
.
5205
02 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 1
Rig
ht
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
1 R
ight
Whe
n a
sens
or is
left
unco
nnec
ted
from
toot
h w
heel
ass
embl
y,
no w
heel
spe
eds
are
mea
sure
d in
this
par
ticul
ar w
heel
re
sulti
ng in
larg
er s
lip v
alue
on
this
whe
el. T
his
cond
ition
w
ill r
esul
t in
perm
anen
t slip
failu
re o
n th
is w
heel
. Thi
s er
ror
dete
ctio
n is
pos
sibl
e in
thre
e di
ffere
nt w
ays:
Sou
rce
1: B
ased
on
whe
el s
lip s
igna
l (la
mbd
a si
gnal
) fr
om A
BS
co
ntro
l fun
ctio
n.S
ourc
e 2:
Bas
ed o
n w
heel
spe
ed v
alue
s.S
ourc
e 3:
Whe
n se
nsor
sta
tus
is in
valid
due
to h
igh
freq
uenc
y si
gnal
mea
sure
d by
sen
sor.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide?
• C
heck
the
whe
el s
peed
sen
sor
for
corr
ect v
olta
ge o
utpu
t. (I
s vo
ltage
ou
tput
suf
ficie
nt?)
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
02 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 1
Rig
ht
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 1
Rig
htJu
mp
dow
n fa
ilure
is d
etec
ted
whe
n w
heel
spe
ed d
rops
su
dden
ly to
sta
ndst
ill fr
om h
ighe
r sp
eeds
.T
he fa
ilure
can
hap
pen
beca
use
of la
rger
air
gap
betw
een
toot
h w
heel
and
sen
sor
or d
ue to
sen
sor
getti
ng m
isal
igne
d w
hile
dr
ivin
g.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
02 -
10
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
1 R
ight
- ab
norm
al ra
te o
f cha
nge
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
1 R
ight
Larg
er a
ir ga
p be
twee
n se
nsor
and
toot
h w
heel
will
lead
to
jum
p up
failu
re.
Jum
p up
failu
re w
ill b
e de
tect
ed w
hen
whe
els
star
t rot
atin
g fr
om s
tand
still
.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
sens
or
fittin
g lo
ose?
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
4013153a
5 SPN FMI Fault Codes
38 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.23
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
02 -
13
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
1 R
ight
-
out o
f cal
ibra
tion
Impe
rmis
sabl
e T
ire S
ize
Det
ecte
d at
Axl
e 1
Rig
htW
hen
devi
atio
n of
tire
siz
e is
gre
ater
than
the
allo
wab
le li
mit,
th
e im
perm
issi
ble
tire
size
err
or s
hall
be s
et fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
tire
size
err
or’ f
or a
w
heel
if th
e m
inim
um o
f all
unco
rrec
ted
whe
el s
peed
s in
the
vehi
cle
is g
reat
er th
an 2
0 km
/h.
Whe
n th
e pr
econ
ditio
ns a
re s
atis
fied
with
any
of t
he fo
llow
ing
cond
ition
s, th
en th
e im
perm
issi
ble
tire
size
err
or s
hall
be s
et fo
r th
e co
ncer
ned
whe
el:
- The
diff
eren
ce in
cor
rect
ion
valu
es b
etw
een
the
left
and
right
w
heel
s of
an
axle
exc
eeds
10%
.-
Cor
rect
ion
valu
e of
the
whe
el is
mor
e th
an 1
4%.
- Whe
el s
peed
dev
iatio
n be
twee
n th
e le
ft an
d rig
ht w
heel
s of
an
axle
exc
eeds
10%
.- W
heel
spe
ed d
evia
tion
of th
e w
heel
com
pare
d to
the
aver
age
fron
t axl
e w
heel
spe
ed is
gre
ater
than
14%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
02 -
14
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
1 R
ight
-
spec
ial i
nstr
uctio
ns
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
1 R
ight
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror
shal
l be
rep
orte
d fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all m
onito
r th
e w
heel
spe
eds
only
whe
n th
e m
inim
um w
heel
spe
ed is
20
km/h
or
high
er.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
devi
atio
n’ e
rror
for
a w
heel
if th
e co
mpe
nsat
ed s
peed
of c
once
rned
whe
el d
evia
tes
from
the
max
imum
com
pens
ated
whe
el s
peed
by
mor
e th
an
10%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
03 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 2
Left
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
2 Le
ftU
ndes
irabl
e ju
mps
in w
heel
spe
ed is
rec
ogni
zed
as c
hatte
ring.
W
hen
this
beh
avio
r of
cha
tterin
g is
act
ive
for
cert
ain
time
perio
d, th
e w
heel
spe
ed c
hatte
ring
faul
t will
be
reco
gniz
ed.
Det
ectio
n is
onl
y ac
tive
if ve
hicl
e re
fere
nce
spee
d is
mor
e th
an
15 k
m/h
.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r in
adm
issi
ble
vibr
atio
ns
(ret
urn
sprin
g de
fect
? br
ake
linin
gs lo
osen
ed?)
.
5205
03 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 2
Left
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
2 Le
ftW
hen
a se
nsor
is le
ft un
conn
ecte
d fr
om to
oth
whe
el a
ssem
bly,
no
whe
el s
peed
s ar
e m
easu
red
in th
is p
artic
ular
whe
el,
resu
lting
in la
rger
slip
val
ue o
n th
is w
heel
. Thi
s co
nditi
on w
ill
resu
lt in
per
man
ent s
lip fa
ilure
on
this
whe
el.
Thi
s er
ror
dete
ctio
n is
pos
sibl
e in
thre
e di
ffere
nt w
ays:
Sou
rce
1: B
ased
on
whe
el s
lip s
igna
l (la
mbd
a si
gnal
) fr
om A
BS
co
ntro
l fun
ctio
n.S
ourc
e 2:
Bas
ed o
n w
heel
spe
ed v
alue
s.S
ourc
e 3:
Whe
n se
nsor
sta
tus
is in
valid
due
to h
igh
freq
uenc
y si
gnal
mea
sure
d by
sen
sor.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide?
• C
heck
the
whe
el s
peed
sen
sor
for
corr
ect v
olta
ge o
utpu
t. (I
s vo
ltage
ou
tput
suf
ficie
nt?)
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
03 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 2
Left
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 2
Left
Jum
p do
wn
failu
re is
det
ecte
d w
hen
whe
el s
peed
dro
ps
sudd
enly
to s
tand
still
from
hig
her
spee
ds.
The
failu
re c
an h
appe
n be
caus
e of
larg
er a
ir ga
p be
twee
n to
oth
whe
el a
nd s
enso
r or
due
to s
enso
r ge
tting
mis
alig
ned
whi
le
driv
ing.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
03 -
10
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
2 Le
ft -
abno
rmal
rate
of c
hang
e
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
2 Le
ftLa
rger
air
gap
betw
een
sens
or a
nd to
oth
whe
el w
ill le
ad to
ju
mp
up fa
ilure
. Jum
p up
failu
re w
ill b
e de
tect
ed w
hen
whe
els
star
t rot
atin
g fr
om s
tand
still
.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. (Is
the
sens
or
fittin
g lo
ose?
)•
If se
nsor
and
air
gap
are
corr
ect,
cont
act W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013154a
5 SPN FMI Fault Codes
39WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.24
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
03 -
13
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
2 Le
ft -
out o
f cal
ibra
tion
Impe
rmis
sabl
e T
ire S
ize
Det
ecte
d at
Axl
e 2
Left
Whe
n de
viat
ion
of ti
re s
ize
is g
reat
er th
an th
e al
low
able
lim
it,
the
impe
rmis
sibl
e tir
e si
ze e
rror
sha
ll be
set
for
the
conc
erne
d w
heel
.T
he s
oftw
are
shal
l rep
ort ‘
impe
rmis
sibl
e tir
e si
ze e
rror
’ for
a
whe
el if
the
min
imum
of a
ll un
corr
ecte
d w
heel
spe
eds
in th
e ve
hicl
e is
gre
ater
than
20
km/h
.W
hen
the
prec
ondi
tions
are
sat
isfie
d w
ith a
ny o
f the
follo
win
g co
nditi
ons,
then
the
impe
rmis
sibl
e tir
e si
ze e
rror
sha
ll be
set
for
the
conc
erne
d w
heel
:- T
he d
iffer
ence
in c
orre
ctio
n va
lues
bet
wee
n th
e le
ft an
d rig
ht
whe
els
of a
n ax
le e
xcee
ds 1
0%.
- C
orre
ctio
n va
lue
of th
e w
heel
is m
ore
than
14%
.- W
heel
spe
ed d
evia
tion
betw
een
the
left
and
right
whe
els
of a
n ax
le e
xcee
ds 1
0%.
- Whe
el s
peed
dev
iatio
n of
the
whe
el c
ompa
red
to th
e av
erag
e fr
ont a
xle
whe
el s
peed
is g
reat
er th
an 1
4%.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
03 -
14
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
2 Le
ft -
spec
ial i
nstr
uctio
ns
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
2 Le
ft
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror
shal
l be
rep
orte
d fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all m
onito
r th
e w
heel
spe
eds
only
whe
n th
e m
inim
um w
heel
spe
ed is
20
km/h
or
high
er.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
devi
atio
n’ e
rror
for
a w
heel
if th
e co
mpe
nsat
ed s
peed
of c
once
rned
whe
el d
evia
tes
from
the
max
imum
com
pens
ated
whe
el s
peed
by
mor
e th
an
10%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
04 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 2
Rig
ht
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
2 R
ight
Und
esira
ble
jum
ps in
whe
el s
peed
is r
ecog
nize
d as
cha
tterin
g.
Whe
n th
is b
ehav
ior
of c
hatte
ring
is a
ctiv
e fo
r a
cert
ain
time
perio
d, th
e w
heel
spe
ed c
hatte
ring
faul
t will
be
reco
gniz
ed.
Det
ectio
n is
onl
y ac
tive
if ve
hicl
e re
fere
nce
spee
d is
mor
e th
an
15 k
m/h
.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r in
adm
issi
ble
vibr
atio
ns
(ret
urn
sprin
g de
fect
? br
ake
linin
gs lo
osen
ed?)
.
5205
04 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 2
Rig
ht
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
2 R
ight
Whe
n a
sens
or is
left
unco
nnec
ted
from
toot
h w
heel
ass
embl
y,
no w
heel
spe
eds
are
mea
sure
d in
this
par
ticul
ar w
heel
, re
sulti
ng in
larg
er s
lip v
alue
on
this
whe
el. T
his
cond
ition
will
re
sult
in p
erm
anen
t slip
failu
re o
n th
is w
heel
.T
his
erro
r de
tect
ion
is p
ossi
ble
in th
ree
diffe
rent
way
s:S
ourc
e 1:
Bas
ed o
n w
heel
slip
sig
nal (
lam
bda
sign
al)
from
AB
S
cont
rol f
unct
ion.
Sou
rce
2: B
ased
on
whe
el s
peed
val
ues.
Sou
rce
3: W
hen
sens
or s
tatu
s is
inva
lid d
ue to
hig
h fr
eque
ncy
sign
al m
easu
red
by s
enso
r.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide?
• C
heck
the
whe
el s
peed
sen
sor
for
corr
ect v
olta
ge o
utpu
t. (I
s vo
ltage
ou
tput
suf
ficie
nt?)
• R
epla
ce th
e m
ain
EC
U if
sen
sor
and
air
gap
are
corr
ect.
5205
04 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 2
Rig
ht
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 2
Rig
htJu
mp
dow
n fa
ilure
is d
etec
ted
whe
n w
heel
spe
ed d
rops
su
dden
ly to
sta
ndst
ill fr
om h
ighe
r sp
eeds
.T
he fa
ilure
can
hap
pen
beca
use
of la
rger
air
gap
betw
een
toot
h w
heel
and
sen
sor
or d
ue to
sen
sor
getti
ng m
isal
igne
d w
hile
dr
ivin
g.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• If
sens
or a
nd fi
tting
are
cor
rect
, con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
04 -
10
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
2 R
ight
- ab
norm
al ra
te o
f cha
nge
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
2 R
ight
Larg
er a
ir ga
p be
twee
n se
nsor
and
toot
h w
heel
will
lead
to
jum
p up
failu
re.
Jum
p up
failu
re w
ill b
e de
tect
ed w
hen
whe
els
star
t rot
atin
g fr
om s
tand
still
.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. (Is
the
sens
or
fittin
g lo
ose?
)•
If se
nsor
and
fitti
ng a
re c
orre
ct, c
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013155a
5 SPN FMI Fault Codes
40 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.25
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
04 -
13
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
2 R
ight
-
out o
f cal
ibra
tion
Impe
rmis
sabl
e T
ire S
ize
Det
ecte
d at
Axl
e 2
Rig
htW
hen
devi
atio
n of
tire
siz
e is
gre
ater
than
the
allo
wab
le li
mit,
th
e im
perm
issi
ble
tire
size
err
or s
hall
be s
et fo
r th
e co
ncer
ned
whe
el. T
he s
oftw
are
shal
l rep
ort ‘
impe
rmis
sibl
e tir
e si
ze e
rror
’ fo
r a
whe
el if
the
min
imum
of a
ll un
corr
ecte
d w
heel
spe
eds
in
the
vehi
cle
is g
reat
er th
an 2
0 km
/h. W
hen
the
prec
ondi
tions
ar
e sa
tisfie
d w
ith a
ny o
f the
follo
win
g co
nditi
ons,
then
the
impe
rmis
sibl
e tir
e si
ze e
rror
sha
ll be
set
for
the
conc
erne
d w
heel
:- T
he d
iffer
ence
in c
orre
ctio
n va
lues
bet
wee
n th
e le
ft an
d rig
ht
whe
els
of a
n ax
le e
xcee
ds 1
0%.
- C
orre
ctio
n va
lue
of th
e w
heel
is m
ore
than
14%
.- W
heel
spe
ed d
evia
tion
betw
een
the
left
and
right
whe
els
of a
n ax
le e
xcee
ds 1
0%.
- Whe
el s
peed
dev
iatio
n of
the
whe
el c
ompa
red
to th
e av
erag
e fr
ont a
xle
whe
el s
peed
is g
reat
er th
an 1
4%.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
04 -
14
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
2 R
ight
-
spec
ial i
nstr
uctio
ns
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
2 R
ight
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror
shal
l be
rep
orte
d fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all m
onito
r th
e w
heel
spe
eds
only
whe
n th
e m
inim
um w
heel
spe
ed is
20
km/h
or
high
er.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
devi
atio
n’ e
rror
for
a w
heel
if th
e co
mpe
nsat
ed s
peed
of c
once
rned
whe
el d
evia
tes
from
the
max
imum
com
pens
ated
whe
el s
peed
by
mor
e th
an
10%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
05 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 3
Left
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
3 Le
ftU
ndes
irabl
e ju
mps
in w
heel
spe
ed is
rec
ogni
zed
as c
hatte
ring.
W
hen
this
beh
avio
r of
cha
tterin
g is
act
ive
for
a ce
rtai
n tim
e pe
riod,
the
whe
el s
peed
cha
tterin
g fa
ult w
ill b
e re
cogn
ized
.D
etec
tion
is o
nly
activ
e if
vehi
cle
refe
renc
e sp
eed
is m
ore
than
15
km
/h.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r in
adm
issi
ble
vibr
atio
ns
(ret
urn
sprin
g de
fect
? br
ake
linin
gs lo
osen
ed?)
.
5205
05 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 3
Left
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
3 Le
ftW
hen
a se
nsor
is le
ft un
conn
ecte
d fr
om to
oth
whe
el a
ssem
bly,
no
whe
el s
peed
s ar
e m
easu
red
in th
is p
artic
ular
whe
el
resu
lting
in la
rger
slip
val
ue o
n th
is w
heel
. Thi
s co
nditi
on w
ill
resu
lt in
per
man
ent s
lip fa
ilure
on
this
whe
el.
Thi
s er
ror
dete
ctio
n is
pos
sibl
e in
thre
e di
ffere
nt w
ays:
Sou
rce
1: B
ased
on
whe
el s
lip s
igna
l (la
mbd
a si
gnal
) fr
om A
BS
co
ntro
l fun
ctio
n.S
ourc
e 2:
Bas
ed o
n w
heel
spe
ed v
alue
s.S
ourc
e 3:
Whe
n se
nsor
sta
tus
is in
valid
due
to h
igh
freq
uenc
y si
gnal
mea
sure
d by
sen
sor.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide?
• C
heck
the
whe
el s
peed
sen
sor
for
corr
ect v
olta
ge o
utpu
t. (I
s vo
ltage
ou
tput
suf
ficie
nt?)
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
05 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 3
Left
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 3
Left
Jum
p do
wn
failu
re is
det
ecte
d w
hen
whe
el s
peed
dro
ps
sudd
enly
to s
tand
still
from
hig
her
spee
ds.
The
failu
re c
an h
appe
n be
caus
e of
larg
er a
ir ga
p be
twee
n to
oth
whe
el a
nd s
enso
r or
due
to s
enso
r ge
tting
mis
alig
ned
whi
le
driv
ing.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• If
sens
or a
nd fi
tting
are
cor
rect
, con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
05 -
10
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
3 Le
ft -
abno
rmal
rate
of c
hang
e
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
3 Le
ftLa
rger
air
gap
betw
een
sens
or a
nd to
oth
whe
el w
ill le
ad to
ju
mp
up fa
ilure
.Ju
mp
up fa
ilure
will
be
dete
cted
whe
n w
heel
s st
art r
otat
ing
from
sta
ndst
ill.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. (Is
the
sens
or
fittin
g lo
ose?
)•
If se
nsor
and
fitti
ng a
re c
orre
ct, c
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013156a
5 SPN FMI Fault Codes
41WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.26
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
05 -
13
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
3 Le
ft -
out o
f cal
ibra
tion
Impe
rmis
sabl
e T
ire S
ize
Det
ecte
d at
Axl
e 3
Left
Whe
n de
viat
ion
of ti
re s
ize
is g
reat
er th
an th
e al
low
able
lim
it,
the
impe
rmis
sibl
e tir
e si
ze e
rror
sha
ll be
set
for
the
conc
erne
d w
heel
. The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
tire
size
err
or’
for
a w
heel
if th
e m
inim
um o
f all
unco
rrec
ted
whe
el s
peed
s in
th
e ve
hicl
e is
gre
ater
than
20
km/h
. Whe
n th
e pr
econ
ditio
ns
are
satis
fied
with
any
of t
he fo
llow
ing
cond
ition
s, th
en th
e im
perm
issi
ble
tire
size
err
or s
hall
be s
et fo
r th
e co
ncer
ned
whe
el:
- The
diff
eren
ce in
cor
rect
ion
valu
es b
etw
een
the
left
and
right
w
heel
s of
an
axle
exc
eeds
10%
.-
Cor
rect
ion
valu
e of
the
whe
el is
mor
e th
an 1
4%.
- Whe
el s
peed
dev
iatio
n be
twee
n th
e le
ft an
d rig
ht w
heel
s of
an
axle
exc
eeds
10%
.- W
heel
spe
ed d
evia
tion
of th
e w
heel
com
pare
d to
the
aver
age
fron
t axl
e w
heel
spe
ed is
gre
ater
than
14%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
05 -
14
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
3 Le
ft -
spec
ial i
nstr
uctio
ns
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
3 Le
ft
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror
shal
l be
rep
orte
d fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all m
onito
r th
e w
heel
spe
eds
only
whe
n th
e m
inim
um w
heel
spe
ed is
20
km/h
or
high
er.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
devi
atio
n’ e
rror
for
a w
heel
if th
e co
mpe
nsat
ed s
peed
of c
once
rned
whe
el d
evia
tes
from
the
max
imum
com
pens
ated
whe
el s
peed
by
mor
e th
an
10%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
06 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 3
Rig
ht
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
3 R
ight
Und
esira
ble
jum
ps in
whe
el s
peed
is r
ecog
nize
d as
cha
tterin
g.
Whe
n th
is b
ehav
ior
of c
hatte
ring
is a
ctiv
e fo
r ce
rtai
n tim
e pe
riod,
the
whe
el s
peed
cha
tterin
g fa
ult w
ill b
e re
cogn
ized
.D
etec
tion
is o
nly
activ
e if
vehi
cle
refe
renc
e sp
eed
is m
ore
than
15
km
/h.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r in
adm
issi
ble
vibr
atio
ns
(ret
urn
sprin
g de
fect
? br
ake
linin
gs lo
osen
ed?)
.
5205
06 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 3
Rig
ht
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
3 R
ight
Whe
n a
sens
or is
left
unco
nnec
ted
from
toot
h w
heel
ass
embl
y,
no w
heel
spe
eds
are
mea
sure
d in
this
par
ticul
ar w
heel
re
sulti
ng in
larg
er s
lip v
alue
on
this
whe
el. T
his
cond
ition
will
re
sult
in p
erm
anen
t slip
failu
re o
n th
is w
heel
.T
his
erro
r de
tect
ion
is p
ossi
ble
in th
ree
diffe
rent
way
s:S
ourc
e 1:
Bas
ed o
n w
heel
slip
sig
nal (
lam
bda
sign
al)
from
AB
S
cont
rol f
unct
ion.
Sou
rce
2: B
ased
on
whe
el s
peed
val
ues.
Sou
rce
3: W
hen
sens
or s
tatu
s is
inva
lid d
ue to
hig
h fr
eque
ncy
sign
al m
easu
red
by s
enso
r.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide?
• C
heck
the
whe
el s
peed
sen
sor
for
corr
ect v
olta
ge o
utpu
t. (I
s vo
ltage
ou
tput
suf
ficie
nt?)
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
06 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 3
Rig
ht
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 3
Rig
htJu
mp
dow
n fa
ilure
is d
etec
ted
whe
n w
heel
spe
ed d
rops
su
dden
ly to
sta
ndst
ill fr
om h
ighe
r sp
eeds
.T
he fa
ilure
can
hap
pen
beca
use
of la
rger
air
gap
betw
een
toot
h w
heel
and
sen
sor
or d
ue to
sen
sor
getti
ng m
isal
igne
d w
hile
dr
ivin
g.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• If
sens
or a
nd fi
tting
are
cor
rect
, con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
06 -
10
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
3 R
ight
- ab
norm
al ra
te o
f cha
nge
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
3 R
ight
Larg
er a
ir ga
p be
twee
n se
nsor
and
toot
h w
heel
will
lead
to
jum
p up
failu
re.
Jum
p up
failu
re w
ill b
e de
tect
ed w
hen
whe
els
star
t rot
atin
g fr
om s
tand
still
.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. (Is
the
sens
or
fittin
g lo
ose?
)•
If se
nsor
and
fitti
ng a
re c
orre
ct, c
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013157a
5 SPN FMI Fault Codes
42 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.27
DTC
SPN
FM
IFa
ilure
Det
ectio
n N
ame
Failu
re D
etec
tion
Des
crip
tion
Rep
air
5205
06 -
13 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pole
whe
el -
Axl
e 3
Rig
ht
- out
of c
alib
ratio
n
Impe
rmis
sabl
e Ti
re S
ize
Det
ecte
d at
Axl
e 3
Rig
htW
hen
devi
atio
n of
tire
siz
e is
gre
ater
than
the
allo
wab
le li
mit,
th
e im
perm
issi
ble
tire
size
erro
r sha
ll be
set
for t
he c
once
rned
w
heel
. The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
tire
size
erro
r’ fo
r a w
heel
if th
e m
inim
um o
f all
unco
rrect
ed w
heel
spe
eds
in
the
vehi
cle
is g
reat
er th
an 2
0 km
/h. W
hen
the
prec
ondi
tions
ar
e sa
tisfie
d w
ith a
ny o
f the
follo
win
g co
nditi
ons,
then
the
impe
rmis
sibl
e tir
e si
ze e
rror s
hall
be s
et fo
r the
con
cern
ed
whe
el:
- The
diff
eren
ce in
cor
rect
ion
valu
es b
etw
een
the
left
and
right
w
heel
s of
an
axle
exc
eeds
10%
.- C
orre
ctio
n va
lue
of th
e w
heel
is m
ore
than
14%
.- W
heel
spe
ed d
evia
tion
betw
een
the
left
and
right
whe
els
of a
n ax
le e
xcee
ds 1
0%.
- Whe
el s
peed
dev
iatio
n of
the
whe
el c
ompa
red
to th
e av
erag
e fro
nt a
xle
whe
el s
peed
is g
reat
er th
an 1
4%.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrect
siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
06 -
14 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pole
whe
el -
Axl
e 3
Rig
ht
- spe
cial
inst
ruct
ions
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
3 R
ight
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror s
hall
be re
porte
d fo
r the
con
cern
ed w
heel
.Th
e so
ftwar
e sh
all m
onito
r the
whe
el s
peed
s on
ly w
hen
the
min
imum
whe
el s
peed
is 2
0 km
/h o
r hig
her.
The
softw
are
shal
l rep
ort ‘
impe
rmis
sibl
e de
viat
ion’
erro
r for
a
whe
el if
the
com
pens
ated
spe
ed o
f con
cern
ed w
heel
dev
iate
s fro
m th
e m
axim
um c
ompe
nsat
ed w
heel
spe
ed b
y m
ore
than
10
%.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrect
siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
07 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pole
whe
el -
Axl
e 4
Left
- da
ta e
rratic
, int
erm
itten
t or
inco
rrect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
4 Le
ftU
ndes
irabl
e ju
mps
in w
heel
spe
ed is
reco
gniz
ed a
s ch
atte
ring.
W
hen
this
beh
avio
r of c
hatte
ring
is a
ctiv
e fo
r cer
tain
tim
e pe
riod,
the
whe
el s
peed
cha
tterin
g fa
ult w
ill be
reco
gniz
ed.
Det
ectio
n is
onl
y ac
tive
if ve
hicl
e re
fere
nce
spee
d is
mor
e th
an
15 k
m/h
.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r ina
dmis
sibl
e vi
brat
ions
(re
turn
spr
ing
defe
ct?
brak
e lin
ings
loos
ened
?).
5205
07 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pole
whe
el -
Axl
e 4
Left
- mec
hani
cal s
yste
m n
ot
resp
ondi
ng p
rope
rly o
r ou
t of a
djus
tmen
t
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
4 Le
ftW
hen
a se
nsor
is le
ft un
conn
ecte
d fro
m to
oth
whe
el a
ssem
bly,
no
whe
el s
peed
s ar
e m
easu
red
in th
is p
artic
ular
whe
el
resu
lting
in la
rger
slip
val
ue o
n th
is w
heel
. Thi
s co
nditi
on w
ill re
sult
in p
erm
anen
t slip
failu
re o
n th
is w
heel
.Th
is e
rror d
etec
tion
is p
ossi
ble
in th
ree
diffe
rent
way
s:S
ourc
e 1:
Bas
ed o
n w
heel
slip
sig
nal (
lam
bda
sign
al) f
rom
AB
S
cont
rol f
unct
ion.
Sou
rce
2: B
ased
on
whe
el s
peed
val
ues.
Sou
rce
3: W
hen
sens
or s
tatu
s is
inva
lid d
ue to
hig
h fre
quen
cy
sign
al m
easu
red
by s
enso
r.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor a
nd it
s fit
ting.
Is th
e di
stan
ce b
etw
een
toot
h w
heel
and
sen
sor (
air g
ap) t
oo w
ide?
• C
heck
the
whe
el s
peed
sen
sor f
or c
orre
ct v
olta
ge o
utpu
t. (Is
vol
tage
ou
tput
suf
ficie
nt?)
• If
sens
or a
nd a
ir ga
p ar
e co
rrect
, con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
07 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pole
whe
el -
Axl
e 4
Left
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 4
Left
Jum
p do
wn
failu
re is
det
ecte
d w
hen
whe
el s
peed
dro
ps
sudd
enly
to s
tand
still
from
hig
her s
peed
s.Th
e fa
ilure
can
hap
pen
beca
use
of la
rger
air
gap
betw
een
toot
h w
heel
and
sen
sor o
r due
to s
enso
r get
ting
mis
alig
ned
whi
le
driv
ing.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor a
nd it
s fit
ting.
Is th
e di
stan
ce b
etw
een
toot
h w
heel
and
sen
sor (
air g
ap) t
oo w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• If
sens
or a
nd fi
tting
are
cor
rect
, con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
07 -
10 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pole
whe
el -
Axl
e 4
Left
- ab
norm
al ra
te o
f cha
nge
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
4 Le
ftLa
rger
air
gap
betw
een
sens
or a
nd to
oth
whe
el w
ill le
ad to
ju
mp
up fa
ilure
.Ju
mp
up fa
ilure
will
be d
etec
ted
whe
n w
heel
s st
art r
otat
ing
from
sta
ndst
ill.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor a
nd it
s fit
ting.
(Is
the
sens
or
fittin
g lo
ose?
)•
If se
nsor
and
fitti
ng a
re c
orre
ct, c
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013158a
5 SPN FMI Fault Codes
43WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.28
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
07 -
13
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
4 Le
ft -
out o
f cal
ibra
tion
Impe
rmis
sabl
e T
ire S
ize
Det
ecte
d at
Axl
e 4
Left
Whe
n de
viat
ion
of ti
re s
ize
is g
reat
er th
an th
e al
low
able
lim
it,
the
impe
rmis
sibl
e tir
e si
ze e
rror
sha
ll be
set
for
the
conc
erne
d w
heel
. The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
tire
size
err
or’
for
a w
heel
if th
e m
inim
um o
f all
unco
rrec
ted
whe
el s
peed
s in
th
e ve
hicl
e is
gre
ater
than
20
km/h
. Whe
n th
e pr
econ
ditio
ns
are
satis
fied
with
any
of t
he fo
llow
ing
cond
ition
s, th
en th
e im
perm
issi
ble
tire
size
err
or s
hall
be s
et fo
r th
e co
ncer
ned
whe
el:
- The
diff
eren
ce in
cor
rect
ion
valu
es b
etw
een
the
left
and
right
w
heel
s of
an
axle
exc
eeds
10%
.-
Cor
rect
ion
valu
e of
the
whe
el is
mor
e th
an 1
4%.
- Whe
el s
peed
dev
iatio
n be
twee
n th
e le
ft an
d rig
ht w
heel
s of
an
axle
exc
eeds
10%
.- W
heel
spe
ed d
evia
tion
of th
e w
heel
com
pare
d to
the
aver
age
fron
t axl
e w
heel
spe
ed is
gre
ater
than
14%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
07 -
14
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
4 Le
ft -
spec
ial i
nstr
uctio
ns
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
4 Le
ft
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror
shal
l be
rep
orte
d fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all m
onito
r th
e w
heel
spe
eds
only
whe
n th
e m
inim
um w
heel
spe
ed is
20
km/h
or
high
er.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
devi
atio
n’ e
rror
for
a w
heel
if th
e co
mpe
nsat
ed s
peed
of c
once
rned
whe
el d
evia
tes
from
the
max
imum
com
pens
ated
whe
el s
peed
by
mor
e th
an
10%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
08 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 4
Rig
ht
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
4 R
ight
Und
esira
ble
jum
ps in
whe
el s
peed
is r
ecog
nize
d as
cha
tterin
g.
Whe
n th
is b
ehav
ior
of c
hatte
ring
is a
ctiv
e fo
r ce
rtai
n tim
e pe
riod,
the
whe
el s
peed
cha
tterin
g fa
ult w
ill b
e re
cogn
ized
.D
etec
tion
is o
nly
activ
e if
vehi
cle
refe
renc
e sp
eed
is m
ore
than
15
km
/h.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r in
adm
issi
ble
vibr
atio
ns
(ret
urn
sprin
g de
fect
? br
ake
linin
gs lo
osen
ed?)
.
5205
08 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 4
Rig
ht
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
4 R
ight
Whe
n a
sens
or is
left
unco
nnec
ted
from
toot
h w
heel
ass
embl
y,
no w
heel
spe
eds
are
mea
sure
d in
this
par
ticul
ar w
heel
re
sulti
ng in
larg
er s
lip v
alue
on
this
whe
el. T
his
cond
ition
will
re
sult
in p
erm
anen
t slip
failu
re o
n th
is w
heel
.T
his
erro
r de
tect
ion
is p
ossi
ble
in th
ree
diffe
rent
way
s:S
ourc
e 1:
Bas
ed o
n w
heel
slip
sig
nal (
lam
bda
sign
al)
from
AB
S
cont
rol f
unct
ion.
Sou
rce
2: B
ased
on
whe
el s
peed
val
ues.
Sou
rce
3: W
hen
sens
or s
tatu
s is
inva
lid d
ue to
hig
h fr
eque
ncy
sign
al m
easu
red
by s
enso
r.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide?
• C
heck
the
whe
el s
peed
sen
sor
for
corr
ect v
olta
ge o
utpu
t. (I
s vo
ltage
ou
tput
suf
ficie
nt?)
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
08 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 4
Rig
ht
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 4
Rig
htJu
mp
dow
n fa
ilure
is d
etec
ted
whe
n w
heel
spe
ed d
rops
su
dden
ly to
sta
ndst
ill fr
om h
ighe
r sp
eeds
.T
he fa
ilure
can
hap
pen
beca
use
of la
rger
air
gap
betw
een
toot
h w
heel
and
sen
sor
or d
ue to
sen
sor
getti
ng m
isal
igne
d w
hile
dr
ivin
g.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• If
sens
or a
nd fi
tting
are
cor
rect
, con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
08 -
10
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
4 R
ight
- ab
norm
al ra
te o
f cha
nge
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
4 R
ight
Larg
er a
ir ga
p be
twee
n se
nsor
and
toot
h w
heel
will
lead
to
jum
p up
failu
re.
Jum
p up
failu
re w
ill b
e de
tect
ed w
hen
whe
els
star
t rot
atin
g fr
om s
tand
still
.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. (Is
the
sens
or
fittin
g lo
ose?
)•
If se
nsor
and
fitti
ng a
re c
orre
ct, c
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013159a
5 SPN FMI Fault Codes
44 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.29
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
08 -
13
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
4 R
ight
-
out o
f cal
ibra
tion
Impe
rmis
sabl
e T
ire S
ize
Det
ecte
d at
Axl
e 4
Rig
htW
hen
devi
atio
n of
tire
siz
e is
gre
ater
than
the
allo
wab
le li
mit,
th
e im
perm
issi
ble
tire
size
err
or s
hall
be s
et fo
r th
e co
ncer
ned
whe
el. T
he s
oftw
are
shal
l rep
ort ‘
impe
rmis
sibl
e tir
e si
ze e
rror
’ fo
r a
whe
el if
the
min
imum
of a
ll un
corr
ecte
d w
heel
spe
eds
in
the
vehi
cle
is g
reat
er th
an 2
0 km
/h. W
hen
the
prec
ondi
tions
ar
e sa
tisfie
d w
ith a
ny o
f the
follo
win
g co
nditi
ons,
then
the
impe
rmis
sibl
e tir
e si
ze e
rror
sha
ll be
set
for
the
conc
erne
d w
heel
:- T
he d
iffer
ence
in c
orre
ctio
n va
lues
bet
wee
n th
e le
ft an
d rig
ht
whe
els
of a
n ax
le e
xcee
ds 1
0%.
- C
orre
ctio
n va
lue
of th
e w
heel
is m
ore
than
14%
.- W
heel
spe
ed d
evia
tion
betw
een
the
left
and
right
whe
els
of a
n ax
le e
xcee
ds 1
0%.
- Whe
el s
peed
dev
iatio
n of
the
whe
el c
ompa
red
to th
e av
erag
e fr
ont a
xle
whe
el s
peed
is g
reat
er th
an 1
4%.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
08 -
14
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
4 R
ight
-
spec
ial i
nstr
uctio
ns
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
4 R
ight
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror
shal
l be
rep
orte
d fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all m
onito
r th
e w
heel
spe
eds
only
whe
n th
e m
inim
um w
heel
spe
ed is
20
km/h
or
high
er.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
devi
atio
n’ e
rror
for
a w
heel
if th
e co
mpe
nsat
ed s
peed
of c
once
rned
whe
el d
evia
tes
from
the
max
imum
com
pens
ated
whe
el s
peed
by
mor
e th
an
10%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
09 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 5
Left
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
5 Le
ftU
ndes
irabl
e ju
mps
in w
heel
spe
ed is
rec
ogni
zed
as c
hatte
ring.
W
hen
this
beh
avio
r of
cha
tterin
g is
act
ive
for
cert
ain
time
perio
d, th
e w
heel
spe
ed c
hatte
ring
faul
t will
be
reco
gniz
ed.
Det
ectio
n is
onl
y ac
tive
if ve
hicl
e re
fere
nce
spee
d is
mor
e th
an
15 k
m/h
.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r in
adm
issi
ble
vibr
atio
ns
(ret
urn
sprin
g de
fect
? br
ake
linin
gs lo
osen
ed?)
.
5205
09 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 5
Left
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
5 Le
ftW
hen
a se
nsor
is le
ft un
conn
ecte
d fr
om to
oth
whe
el a
ssem
bly,
no
whe
el s
peed
s ar
e m
easu
red
in th
is p
artic
ular
whe
el
resu
lting
in la
rger
slip
val
ue o
n th
is w
heel
. Thi
s co
nditi
on w
ill
resu
lt in
per
man
ent s
lip fa
ilure
on
this
whe
el.
Thi
s er
ror
dete
ctio
n is
pos
sibl
e in
thre
e di
ffere
nt w
ays:
Sou
rce
1: B
ased
on
whe
el s
lip s
igna
l (la
mbd
a si
gnal
) fr
om A
BS
co
ntro
l fun
ctio
n.S
ourc
e 2:
Bas
ed o
n w
heel
spe
ed v
alue
s.S
ourc
e 3:
Whe
n se
nsor
sta
tus
is in
valid
due
to h
igh
freq
uenc
y si
gnal
mea
sure
d by
sen
sor.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide?
• C
heck
the
whe
el s
peed
sen
sor
for
corr
ect v
olta
ge o
utpu
t. (I
s vo
ltage
ou
tput
suf
ficie
nt?)
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
09 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 5
Left
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 5
Left
Jum
p do
wn
failu
re is
det
ecte
d w
hen
whe
el s
peed
dro
ps
sudd
enly
to s
tand
still
from
hig
her
spee
ds.
The
failu
re c
an h
appe
n be
caus
e of
larg
er a
ir ga
p be
twee
n to
oth
whe
el a
nd s
enso
r or
due
to s
enso
r ge
tting
mis
alig
ned
whi
le
driv
ing.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• If
sens
or a
nd fi
tting
are
cor
rect
, con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
09 -
10
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
5 Le
ft -
abno
rmal
rate
of c
hang
e
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
5 Le
ftLa
rger
air
gap
betw
een
sens
or a
nd to
oth
whe
el w
ill le
ad to
ju
mp
up fa
ilure
.Ju
mp
up fa
ilure
will
be
dete
cted
whe
n w
heel
s st
art r
otat
ing
from
sta
ndst
ill.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. (Is
the
sens
or
fittin
g lo
ose?
)•
If se
nsor
and
fitti
ng a
re c
orre
ct, c
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013160a
5 SPN FMI Fault Codes
45WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.30
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
09 -
13
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
5 Le
ft -
out o
f cal
ibra
tion
Impe
rmis
sabl
e T
ire S
ize
Det
ecte
d at
Axl
e 5
Left
Whe
n de
viat
ion
of ti
re s
ize
is g
reat
er th
an th
e al
low
able
lim
it,
the
impe
rmis
sibl
e tir
e si
ze e
rror
sha
ll be
set
for
the
conc
erne
d w
heel
. The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
tire
size
err
or’
for
a w
heel
if th
e m
inim
um o
f all
unco
rrec
ted
whe
el s
peed
s in
th
e ve
hicl
e is
gre
ater
than
20
km/h
. Whe
n th
e pr
econ
ditio
ns
are
satis
fied
with
any
of t
he fo
llow
ing
cond
ition
s, th
en th
e im
perm
issi
ble
tire
size
err
or s
hall
be s
et fo
r th
e co
ncer
ned
whe
el:
- The
diff
eren
ce in
cor
rect
ion
valu
es b
etw
een
the
left
and
right
w
heel
s of
an
axle
exc
eeds
10%
.-
Cor
rect
ion
valu
e of
the
whe
el is
mor
e th
an 1
4%.
- Whe
el s
peed
dev
iatio
n be
twee
n th
e le
ft an
d rig
ht w
heel
s of
an
axle
exc
eeds
10%
.- W
heel
spe
ed d
evia
tion
of th
e w
heel
com
pare
d to
the
aver
age
fron
t axl
e w
heel
spe
ed is
gre
ater
than
14%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
09 -
14
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
5 Le
ft -
spec
ial i
nstr
uctio
ns
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
5 Le
ft
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror
shal
l be
rep
orte
d fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all m
onito
r th
e w
heel
spe
eds
only
whe
n th
e m
inim
um w
heel
spe
ed is
20
km/h
or
high
er.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
devi
atio
n’ e
rror
for
a w
heel
if th
e co
mpe
nsat
ed s
peed
of c
once
rned
whe
el d
evia
tes
from
the
max
imum
com
pens
ated
whe
el s
peed
by
mor
e th
an
10%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
10 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 5
Rig
ht
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
5 R
ight
Und
esira
ble
jum
ps in
whe
el s
peed
is r
ecog
nize
d as
cha
tterin
g.
Whe
n th
is b
ehav
ior
of c
hatte
ring
is a
ctiv
e fo
r ce
rtai
n tim
e pe
riod,
the
whe
el s
peed
cha
tterin
g fa
ult w
ill b
e re
cogn
ized
.D
etec
tion
is o
nly
activ
e if
vehi
cle
refe
renc
e sp
eed
is m
ore
than
15
km
/h.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r in
adm
issi
ble
vibr
atio
ns
(ret
urn
sprin
g de
fect
? br
ake
linin
gs lo
osen
ed?)
.
5205
10 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 5
Rig
ht
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
5 R
ight
Whe
n a
sens
or is
left
unco
nnec
ted
from
toot
h w
heel
ass
embl
y,
no w
heel
spe
eds
are
mea
sure
d in
this
par
ticul
ar w
heel
re
sulti
ng in
larg
er s
lip v
alue
on
this
whe
el. T
his
cond
ition
will
re
sult
in p
erm
anen
t slip
failu
re o
n th
is w
heel
.T
his
erro
r de
tect
ion
is p
ossi
ble
in th
ree
diffe
rent
way
s:S
ourc
e 1:
Bas
ed o
n w
heel
slip
sig
nal (
lam
bda
sign
al)
from
AB
S
cont
rol f
unct
ion.
Sou
rce
2: B
ased
on
whe
el s
peed
val
ues.
Sou
rce
3: W
hen
sens
or s
tatu
s is
inva
lid d
ue to
hig
h fr
eque
ncy
sign
al m
easu
red
by s
enso
r.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide?
• C
heck
the
whe
el s
peed
sen
sor
for
corr
ect v
olta
ge o
utpu
t. (I
s vo
ltage
ou
tput
suf
ficie
nt?)
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
10 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 5
Rig
ht
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 5
Rig
htJu
mp
dow
n fa
ilure
is d
etec
ted
whe
n w
heel
spe
ed d
rops
su
dden
ly to
sta
ndst
ill fr
om h
ighe
r sp
eeds
.T
he fa
ilure
can
hap
pen
beca
use
of la
rger
air
gap
betw
een
toot
h w
heel
and
sen
sor
or d
ue to
sen
sor
getti
ng m
isal
igne
d w
hile
dr
ivin
g.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
10 -
10
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
5 R
ight
- ab
norm
al ra
te o
f cha
nge
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
5 R
ight
Larg
er a
ir ga
p be
twee
n se
nsor
and
toot
h w
heel
will
lead
to
jum
p up
failu
re.
Jum
p up
failu
re w
ill b
e de
tect
ed w
hen
whe
els
star
t rot
atin
g fr
om s
tand
still
.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. (Is
the
sens
or
fittin
g lo
ose?
)•
If se
nsor
and
air
gap
are
corr
ect,
cont
act W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013161a
5 SPN FMI Fault Codes
46 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.31
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
10 -
13
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
5 R
ight
-
out o
f cal
ibra
tion
Impe
rmis
sabl
e T
ire S
ize
Det
ecte
d at
Axl
e 5
Rig
htW
hen
devi
atio
n of
tire
siz
e is
gre
ater
than
the
allo
wab
le li
mit,
th
e im
perm
issi
ble
tire
size
err
or s
hall
be s
et fo
r th
e co
ncer
ned
whe
el. T
he s
oftw
are
shal
l rep
ort ‘
impe
rmis
sibl
e tir
e si
ze e
rror
’ fo
r a
whe
el if
the
min
imum
of a
ll un
corr
ecte
d w
heel
spe
eds
in
the
vehi
cle
is g
reat
er th
an 2
0 km
/h. W
hen
the
prec
ondi
tions
ar
e sa
tisfie
d w
ith a
ny o
f the
follo
win
g co
nditi
ons,
then
the
impe
rmis
sibl
e tir
e si
ze e
rror
sha
ll be
set
for
the
conc
erne
d w
heel
:- T
he d
iffer
ence
in c
orre
ctio
n va
lues
bet
wee
n th
e le
ft an
d rig
ht
whe
els
of a
n ax
le e
xcee
ds 1
0%.
- C
orre
ctio
n va
lue
of th
e w
heel
is m
ore
than
14%
.- W
heel
spe
ed d
evia
tion
betw
een
the
left
and
right
whe
els
of a
n ax
le e
xcee
ds 1
0%.
- Whe
el s
peed
dev
iatio
n of
the
whe
el c
ompa
red
to th
e av
erag
e fr
ont a
xle
whe
el s
peed
is g
reat
er th
an 1
4%.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
10 -
14
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
5 R
ight
-
spec
ial i
nstr
uctio
ns
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
5 R
ight
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror
shal
l be
rep
orte
d fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all m
onito
r th
e w
heel
spe
eds
only
whe
n th
e m
inim
um w
heel
spe
ed is
20
km/h
or
high
er.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
devi
atio
n’ e
rror
for
a w
heel
if th
e co
mpe
nsat
ed s
peed
of c
once
rned
whe
el d
evia
tes
from
the
max
imum
com
pens
ated
whe
el s
peed
by
mor
e th
an
10%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
11 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 6
Left
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
6 Le
ftU
ndes
irabl
e ju
mps
in w
heel
spe
ed is
rec
ogni
zed
as c
hatte
ring.
W
hen
this
beh
avio
r of
cha
tterin
g is
act
ive
for
cert
ain
time
perio
d, th
e w
heel
spe
ed c
hatte
ring
faul
t will
be
reco
gniz
ed.
Det
ectio
n is
onl
y ac
tive
if ve
hicl
e re
fere
nce
spee
d is
mor
e th
an
15 k
m/h
.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r in
adm
issi
ble
vibr
atio
ns
(ret
urn
sprin
g de
fect
? br
ake
linin
gs lo
osen
ed?)
.
5205
11 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 6
Left
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
6 Le
ftW
hen
a se
nsor
is le
ft un
conn
ecte
d fr
om to
oth
whe
el a
ssem
bly,
no
whe
el s
peed
s ar
e m
easu
red
in th
is p
artic
ular
whe
el
resu
lting
in la
rger
slip
val
ue o
n th
is w
heel
. Thi
s co
nditi
on w
ill
resu
lt in
per
man
ent s
lip fa
ilure
on
this
whe
el.
Thi
s er
ror
dete
ctio
n is
pos
sibl
e in
thre
e di
ffere
nt w
ays:
Sou
rce
1: B
ased
on
whe
el s
lip s
igna
l (la
mbd
a si
gnal
) fr
om A
BS
co
ntro
l fun
ctio
n.S
ourc
e 2:
Bas
ed o
n w
heel
spe
ed v
alue
s.S
ourc
e 3:
Whe
n se
nsor
sta
tus
is in
valid
due
to h
igh
freq
uenc
y si
gnal
mea
sure
d by
sen
sor.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide?
• C
heck
the
whe
el s
peed
sen
sor
for
corr
ect v
olta
ge o
utpu
t. (I
s vo
ltage
ou
tput
suf
ficie
nt?)
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
11 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 6
Left
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 6
Left
Jum
p do
wn
failu
re is
det
ecte
d w
hen
whe
el s
peed
dro
ps
sudd
enly
to s
tand
still
from
hig
her
spee
ds.
The
failu
re c
an h
appe
n be
caus
e of
larg
er a
ir ga
p be
twee
n to
oth
whe
el a
nd s
enso
r or
due
to s
enso
r ge
tting
mis
alig
ned
whi
le
driv
ing.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
11 -
10
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
6 Le
ft -
abno
rmal
rate
of c
hang
e
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
6 Le
ftLa
rger
air
gap
betw
een
sens
or a
nd to
oth
whe
el w
ill le
ad to
ju
mp
up fa
ilure
.Ju
mp
up fa
ilure
will
be
dete
cted
whe
n w
heel
s st
art r
otat
ing
from
sta
ndst
ill.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. (Is
the
sens
or
fittin
g lo
ose?
)•
If se
nsor
and
air
gap
are
corr
ect,
cont
act W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013162a
5 SPN FMI Fault Codes
47WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.32
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
11 -
13
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
6 Le
ft -
out o
f cal
ibra
tion
Impe
rmis
sabl
e T
ire S
ize
Det
ecte
d at
Axl
e 6
Left
Whe
n de
viat
ion
of ti
re s
ize
is g
reat
er th
an th
e al
low
able
lim
it,
the
impe
rmis
sibl
e tir
e si
ze e
rror
sha
ll be
set
for
the
conc
erne
d w
heel
. The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
tire
size
err
or’
for
a w
heel
if th
e m
inim
um o
f all
unco
rrec
ted
whe
el s
peed
s in
th
e ve
hicl
e is
gre
ater
than
20
km/h
. Whe
n th
e pr
econ
ditio
ns
are
satis
fied
with
any
of t
he fo
llow
ing
cond
ition
s, th
en th
e im
perm
issi
ble
tire
size
err
or s
hall
be s
et fo
r th
e co
ncer
ned
whe
el:
- The
diff
eren
ce in
cor
rect
ion
valu
es b
etw
een
the
left
and
right
w
heel
s of
an
axle
exc
eeds
10%
.-
Cor
rect
ion
valu
e of
the
whe
el is
mor
e th
an 1
4%.
- Whe
el s
peed
dev
iatio
n be
twee
n th
e le
ft an
d rig
ht w
heel
s of
an
axle
exc
eeds
10%
.- W
heel
spe
ed d
evia
tion
of th
e w
heel
com
pare
d to
the
aver
age
fron
t axl
e w
heel
spe
ed is
gre
ater
than
14%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
11 -
14
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
6 Le
ft -
spec
ial i
nstr
uctio
ns
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
6 Le
ft
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror
shal
l be
rep
orte
d fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all m
onito
r th
e w
heel
spe
eds
only
whe
n th
e m
inim
um w
heel
spe
ed is
20
km/h
or
high
er.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
devi
atio
n’ e
rror
for
a w
heel
if th
e co
mpe
nsat
ed s
peed
of c
once
rned
whe
el d
evia
tes
from
the
max
imum
com
pens
ated
whe
el s
peed
by
mor
e th
an
10%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
12 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 6
Rig
ht
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
6 R
ight
Und
esira
ble
jum
ps in
whe
el s
peed
is r
ecog
nize
d as
cha
tterin
g.
Whe
n th
is b
ehav
ior
of c
hatte
ring
is a
ctiv
e fo
r ce
rtai
n tim
e pe
riod,
the
whe
el s
peed
cha
tterin
g fa
ult w
ill b
e re
cogn
ized
.D
etec
tion
is o
nly
activ
e if
vehi
cle
refe
renc
e sp
eed
is m
ore
than
15
km
/h.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r in
adm
issi
ble
vibr
atio
ns
(ret
urn
sprin
g de
fect
? br
ake
linin
gs lo
osen
ed?)
.
5205
12 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 6
Rig
ht
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
6 R
ight
Whe
n a
sens
or is
left
unco
nnec
ted
from
toot
h w
heel
ass
embl
y,
no w
heel
spe
eds
are
mea
sure
d in
this
par
ticul
ar w
heel
re
sulti
ng in
larg
er s
lip v
alue
on
this
whe
el. T
his
cond
ition
will
re
sult
in p
erm
anen
t slip
failu
re o
n th
is w
heel
.T
his
erro
r de
tect
ion
is p
ossi
ble
in th
ree
diffe
rent
way
s:S
ourc
e 1:
Bas
ed o
n w
heel
slip
sig
nal (
lam
bda
sign
al)
from
AB
S
cont
rol f
unct
ion.
Sou
rce
2: B
ased
on
whe
el s
peed
val
ues.
Sou
rce
3: W
hen
sens
or s
tatu
s is
inva
lid d
ue to
hig
h fr
eque
ncy
sign
al m
easu
red
by s
enso
r.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide?
• C
heck
the
whe
el s
peed
sen
sor
for
corr
ect v
olta
ge o
utpu
t. (I
s vo
ltage
ou
tput
suf
ficie
nt?)
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
12 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 6
Rig
ht
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 6
Rig
htJu
mp
dow
n fa
ilure
is d
etec
ted
whe
n w
heel
spe
ed d
rops
su
dden
ly to
sta
ndst
ill fr
om h
ighe
r sp
eeds
.T
he fa
ilure
can
hap
pen
beca
use
of la
rger
air
gap
betw
een
toot
h w
heel
and
sen
sor
or d
ue to
sen
sor
getti
ng m
isal
igne
d w
hile
dr
ivin
g.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
12 -
10
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
6 R
ight
- ab
norm
al ra
te o
f cha
nge
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
6 R
ight
Larg
er a
ir ga
p be
twee
n se
nsor
and
toot
h w
heel
will
lead
to
jum
p up
failu
re.
Jum
p up
failu
re w
ill b
e de
tect
ed w
hen
whe
els
star
t rot
atin
g fr
om s
tand
still
.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. (Is
the
sens
or
fittin
g lo
ose?
)•
If se
nsor
and
air
gap
are
corr
ect,
cont
act W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013163a
5 SPN FMI Fault Codes
48 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.33
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
12 -
13
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
6 R
ight
-
out o
f cal
ibra
tion
Impe
rmis
sabl
e T
ire S
ize
Det
ecte
d at
Axl
e 6
Rig
htW
hen
devi
atio
n of
tire
siz
e is
gre
ater
than
the
allo
wab
le li
mit,
th
e im
perm
issi
ble
tire
size
err
or s
hall
be s
et fo
r th
e co
ncer
ned
whe
el. T
he s
oftw
are
shal
l rep
ort ‘
impe
rmis
sibl
e tir
e si
ze e
rror
’ fo
r a
whe
el if
the
min
imum
of a
ll un
corr
ecte
d w
heel
spe
eds
in
the
vehi
cle
is g
reat
er th
an 2
0 km
/h. W
hen
the
prec
ondi
tions
ar
e sa
tisfie
d w
ith a
ny o
f the
follo
win
g co
nditi
ons,
then
the
impe
rmis
sibl
e tir
e si
ze e
rror
sha
ll be
set
for
the
conc
erne
d w
heel
:- T
he d
iffer
ence
in c
orre
ctio
n va
lues
bet
wee
n th
e le
ft an
d rig
ht
whe
els
of a
n ax
le e
xcee
ds 1
0%.
- C
orre
ctio
n va
lue
of th
e w
heel
is m
ore
than
14%
.- W
heel
spe
ed d
evia
tion
betw
een
the
left
and
right
whe
els
of a
n ax
le e
xcee
ds 1
0%.
- Whe
el s
peed
dev
iatio
n of
the
whe
el c
ompa
red
to th
e av
erag
e fr
ont a
xle
whe
el s
peed
is g
reat
er th
an 1
4%.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
12 -
14
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
6 R
ight
-
spec
ial i
nstr
uctio
ns
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
6 R
ight
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror
shal
l be
rep
orte
d fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all m
onito
r th
e w
heel
spe
eds
only
whe
n th
e m
inim
um w
heel
spe
ed is
20
km/h
or
high
er.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
devi
atio
n’ e
rror
for
a w
heel
if th
e co
mpe
nsat
ed s
peed
of c
once
rned
whe
el d
evia
tes
from
the
max
imum
com
pens
ated
whe
el s
peed
by
mor
e th
an
10%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
13 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 7
Left
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
7 Le
ftU
ndes
irabl
e ju
mps
in w
heel
spe
ed is
rec
ogni
zed
as c
hatte
ring.
W
hen
this
beh
avio
r of
cha
tterin
g is
act
ive
for
cert
ain
time
perio
d, th
e w
heel
spe
ed c
hatte
ring
faul
t will
be
reco
gniz
ed.
Det
ectio
n is
onl
y ac
tive
if ve
hicl
e re
fere
nce
spee
d is
mor
e th
an
15 k
m/h
.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r in
adm
issi
ble
vibr
atio
ns
(ret
urn
sprin
g de
fect
? br
ake
linin
gs lo
osen
ed?)
.
5205
13 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 7
Left
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
7 Le
ftW
hen
a se
nsor
is le
ft un
conn
ecte
d fr
om to
oth
whe
el a
ssem
bly,
no
whe
el s
peed
s ar
e m
easu
red
in th
is p
artic
ular
whe
el
resu
lting
in la
rger
slip
val
ue o
n th
is w
heel
. Thi
s co
nditi
on w
ill
resu
lt in
per
man
ent s
lip fa
ilure
on
this
whe
el.
Thi
s er
ror
dete
ctio
n is
pos
sibl
e in
thre
e di
ffere
nt w
ays:
Sou
rce
1: B
ased
on
whe
el s
lip s
igna
l (la
mbd
a si
gnal
) fr
om A
BS
co
ntro
l fun
ctio
n.S
ourc
e 2:
Bas
ed o
n w
heel
spe
ed v
alue
s.S
ourc
e 3:
Whe
n se
nsor
sta
tus
is in
valid
due
to h
igh
freq
uenc
y si
gnal
mea
sure
d by
sen
sor.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide?
• C
heck
the
whe
el s
peed
sen
sor
for
corr
ect v
olta
ge o
utpu
t. (I
s vo
ltage
ou
tput
suf
ficie
nt?)
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
13 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 7
Left
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 7
Left
Jum
p do
wn
failu
re is
det
ecte
d w
hen
whe
el s
peed
dro
ps
sudd
enly
to s
tand
still
from
hig
her
spee
ds.
The
failu
re c
an h
appe
n be
caus
e of
larg
er a
ir ga
p be
twee
n to
oth
whe
el a
nd s
enso
r or
due
to s
enso
r ge
tting
mis
alig
ned
whi
le
driv
ing.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
13 -
10
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
7 Le
ft -
abno
rmal
rate
of c
hang
e
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
7 Le
ftLa
rger
air
gap
betw
een
sens
or a
nd to
oth
whe
el w
ill le
ad to
ju
mp
up fa
ilure
.Ju
mp
up fa
ilure
will
be
dete
cted
whe
n w
heel
s st
art r
otat
ing
from
sta
ndst
ill.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. (Is
the
sens
or
fittin
g lo
ose?
)•
If se
nsor
and
air
gap
are
corr
ect,
cont
act W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013164a
5 SPN FMI Fault Codes
49WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.34
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
13 -
13
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
7 Le
ft -
out o
f cal
ibra
tion
Impe
rmis
sabl
e T
ire S
ize
Det
ecte
d at
Axl
e 7
Left
Whe
n de
viat
ion
of ti
re s
ize
is g
reat
er th
an th
e al
low
able
lim
it,
the
impe
rmis
sibl
e tir
e si
ze e
rror
sha
ll be
set
for
the
conc
erne
d w
heel
. The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
tire
size
err
or’
for
a w
heel
if th
e m
inim
um o
f all
unco
rrec
ted
whe
el s
peed
s in
th
e ve
hicl
e is
gre
ater
than
20
km/h
. Whe
n th
e pr
econ
ditio
ns
are
satis
fied
with
any
of t
he fo
llow
ing
cond
ition
s, th
en th
e im
perm
issi
ble
tire
size
err
or s
hall
be s
et fo
r th
e co
ncer
ned
whe
el:
- The
diff
eren
ce in
cor
rect
ion
valu
es b
etw
een
the
left
and
right
w
heel
s of
an
axle
exc
eeds
10%
.-
Cor
rect
ion
valu
e of
the
whe
el is
mor
e th
an 1
4%.
- Whe
el s
peed
dev
iatio
n be
twee
n th
e le
ft an
d rig
ht w
heel
s of
an
axle
exc
eeds
10%
.- W
heel
spe
ed d
evia
tion
of th
e w
heel
com
pare
d to
the
aver
age
fron
t axl
e w
heel
spe
ed is
gre
ater
than
14%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
13 -
14
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
7 Le
ft -
spec
ial i
nstr
uctio
ns
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
7 Le
ft
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror
shal
l be
rep
orte
d fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all m
onito
r th
e w
heel
spe
eds
only
whe
n th
e m
inim
um w
heel
spe
ed is
20
km/h
or
high
er.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
devi
atio
n’ e
rror
for
a w
heel
if th
e co
mpe
nsat
ed s
peed
of c
once
rned
whe
el d
evia
tes
from
the
max
imum
com
pens
ated
whe
el s
peed
by
mor
e th
an
10%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
14 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 7
Rig
ht
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
7 R
ight
Und
esira
ble
jum
ps in
whe
el s
peed
is r
ecog
nize
d as
cha
tterin
g.
Whe
n th
is b
ehav
ior
of c
hatte
ring
is a
ctiv
e fo
r ce
rtai
n tim
e pe
riod,
the
whe
el s
peed
cha
tterin
g fa
ult w
ill b
e re
cogn
ized
.D
etec
tion
is o
nly
activ
e if
vehi
cle
refe
renc
e sp
eed
is m
ore
than
15
km
/h.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r in
adm
issi
ble
vibr
atio
ns
(ret
urn
sprin
g de
fect
? br
ake
linin
gs lo
osen
ed?)
.
5205
14 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 7
Rig
ht
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
7 R
ight
Whe
n a
sens
or is
left
unco
nnec
ted
from
toot
h w
heel
ass
embl
y,
no w
heel
spe
eds
are
mea
sure
d in
this
par
ticul
ar w
heel
re
sulti
ng in
larg
er s
lip v
alue
on
this
whe
el. T
his
cond
ition
will
re
sult
in p
erm
anen
t slip
failu
re o
n th
is w
heel
.T
his
erro
r de
tect
ion
is p
ossi
ble
in th
ree
diffe
rent
way
s:S
ourc
e 1:
Bas
ed o
n w
heel
slip
sig
nal (
lam
bda
sign
al)
from
AB
S
cont
rol f
unct
ion.
Sou
rce
2: B
ased
on
whe
el s
peed
val
ues.
Sou
rce
3: W
hen
sens
or s
tatu
s is
inva
lid d
ue to
hig
h fr
eque
ncy
sign
al m
easu
red
by s
enso
r.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide?
• C
heck
the
whe
el s
peed
sen
sor
for
corr
ect v
olta
ge o
utpu
t. (I
s vo
ltage
ou
tput
suf
ficie
nt?)
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
14 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 7
Rig
ht
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 7
Rig
htJu
mp
dow
n fa
ilure
is d
etec
ted
whe
n w
heel
spe
ed d
rops
su
dden
ly to
sta
ndst
ill fr
om h
ighe
r sp
eeds
.T
he fa
ilure
can
hap
pen
beca
use
of la
rger
air
gap
betw
een
toot
h w
heel
and
sen
sor
or d
ue to
sen
sor
getti
ng m
isal
igne
d w
hile
dr
ivin
g.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
14 -
10
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
7 R
ight
- ab
norm
al ra
te o
f cha
nge
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
7 R
ight
Larg
er a
ir ga
p be
twee
n se
nsor
and
toot
h w
heel
will
lead
to
jum
p up
failu
re.
Jum
p up
failu
re w
ill b
e de
tect
ed w
hen
whe
els
star
t rot
atin
g fr
om s
tand
still
.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. (Is
the
sens
or
fittin
g lo
ose?
)•
If se
nsor
and
air
gap
are
corr
ect,
cont
act W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013165a
5 SPN FMI Fault Codes
50 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.35
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
14 -
13
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
7 R
ight
-
out o
f cal
ibra
tion
Impe
rmis
sabl
e T
ire S
ize
Det
ecte
d at
Axl
e 7
Rig
htW
hen
devi
atio
n of
tire
siz
e is
gre
ater
than
the
allo
wab
le li
mit,
th
e im
perm
issi
ble
tire
size
err
or s
hall
be s
et fo
r th
e co
ncer
ned
whe
el. T
he s
oftw
are
shal
l rep
ort ‘
impe
rmis
sibl
e tir
e si
ze e
rror
’ fo
r a
whe
el if
the
min
imum
of a
ll un
corr
ecte
d w
heel
spe
eds
in
the
vehi
cle
is g
reat
er th
an 2
0 km
/h.W
hen
the
prec
ondi
tions
ar
e sa
tisfie
d w
ith a
ny o
f the
follo
win
g co
nditi
ons,
then
the
impe
rmis
sibl
e tir
e si
ze e
rror
sha
ll be
set
for
the
conc
erne
d w
heel
:- T
he d
iffer
ence
in c
orre
ctio
n va
lues
bet
wee
n th
e le
ft an
d rig
ht
whe
els
of a
n ax
le e
xcee
ds 1
0%.
- C
orre
ctio
n va
lue
of th
e w
heel
is m
ore
than
14%
.- W
heel
spe
ed d
evia
tion
betw
een
the
left
and
right
whe
els
of a
n ax
le e
xcee
ds 1
0%.
- Whe
el s
peed
dev
iatio
n of
the
whe
el c
ompa
red
to th
e av
erag
e fr
ont a
xle
whe
el s
peed
is g
reat
er th
an 1
4%.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
14 -
14
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
7 R
ight
-
spec
ial i
nstr
uctio
ns
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
7 R
ight
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror
shal
l be
rep
orte
d fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all m
onito
r th
e w
heel
spe
eds
only
whe
n th
e m
inim
um w
heel
spe
ed is
20
km/h
or
high
er.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
devi
atio
n’ e
rror
for
a w
heel
if th
e co
mpe
nsat
ed s
peed
of c
once
rned
whe
el d
evia
tes
from
the
max
imum
com
pens
ated
whe
el s
peed
by
mor
e th
an
10%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
15 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 8
Left
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
8 Le
ftU
ndes
irabl
e ju
mps
in w
heel
spe
ed is
rec
ogni
zed
as c
hatte
ring.
W
hen
this
beh
avio
r of
cha
tterin
g is
act
ive
for
cert
ain
time
perio
d, th
e w
heel
spe
ed c
hatte
ring
faul
t will
be
reco
gniz
ed.
Det
ectio
n is
onl
y ac
tive
if ve
hicl
e re
fere
nce
spee
d is
mor
e th
an
15 k
m/h
.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r in
adm
issi
ble
vibr
atio
ns
(ret
urn
sprin
g de
fect
? br
ake
linin
gs lo
osen
ed?)
.
5205
15 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 8
Left
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
8 Le
ftW
hen
a se
nsor
is le
ft un
conn
ecte
d fr
om to
oth
whe
el a
ssem
bly,
no
whe
el s
peed
s ar
e m
easu
red
in th
is p
artic
ular
whe
el
resu
lting
in la
rger
slip
val
ue o
n th
is w
heel
. Thi
s co
nditi
on w
ill
resu
lt in
per
man
ent s
lip fa
ilure
on
this
whe
el.
Thi
s er
ror
dete
ctio
n is
pos
sibl
e in
thre
e di
ffere
nt w
ays:
Sou
rce
1: B
ased
on
whe
el s
lip s
igna
l (la
mbd
a si
gnal
) fr
om A
BS
co
ntro
l fun
ctio
n.S
ourc
e 2:
Bas
ed o
n w
heel
spe
ed v
alue
s.S
ourc
e 3:
Whe
n se
nsor
sta
tus
is in
valid
due
to h
igh
freq
uenc
y si
gnal
mea
sure
d by
sen
sor.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide?
• C
heck
the
whe
el s
peed
sen
sor
for
corr
ect v
olta
ge o
utpu
t. (I
s vo
ltage
ou
tput
suf
ficie
nt?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
5205
15 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 8
Left
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 8
Left
Jum
p do
wn
failu
re is
det
ecte
d w
hen
whe
el s
peed
dro
ps
sudd
enly
to s
tand
still
from
hig
her
spee
ds.
The
failu
re c
an h
appe
n be
caus
e of
larg
er a
ir ga
p be
twee
n to
oth
whe
el a
nd s
enso
r or
due
to s
enso
r ge
tting
mis
alig
ned
whi
le
driv
ing.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
5205
15 -
10
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
8 Le
ft -
abno
rmal
rate
of c
hang
e
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
8 Le
ftLa
rger
air
gap
betw
een
sens
or a
nd to
oth
whe
el w
ill le
ad to
ju
mp
up fa
ilure
.Ju
mp
up fa
ilure
will
be
dete
cted
whe
n w
heel
s st
art r
otat
ing
from
sta
ndst
ill.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
sens
or
fittin
g lo
ose?
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
4013166a
5 SPN FMI Fault Codes
51WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.36
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
15 -
13
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
8 Le
ft -
out o
f cal
ibra
tion
Impe
rmis
sabl
e T
ire S
ize
Det
ecte
d at
Axl
e 8
Left
Whe
n de
viat
ion
of ti
re s
ize
is g
reat
er th
an th
e al
low
able
lim
it,
the
impe
rmis
sibl
e tir
e si
ze e
rror
sha
ll be
set
for
the
conc
erne
d w
heel
. The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
tire
size
err
or’
for
a w
heel
if th
e m
inim
um o
f all
unco
rrec
ted
whe
el s
peed
s in
th
e ve
hicl
e is
gre
ater
than
20
km/h
. Whe
n th
e pr
econ
ditio
ns
are
satis
fied
with
any
of t
he fo
llow
ing
cond
ition
s, th
en th
e im
perm
issi
ble
tire
size
err
or s
hall
be s
et fo
r th
e co
ncer
ned
whe
el:
- The
diff
eren
ce in
cor
rect
ion
valu
es b
etw
een
the
left
and
right
w
heel
s of
an
axle
exc
eeds
10%
.-
Cor
rect
ion
valu
e of
the
whe
el is
mor
e th
an 1
4%.
- Whe
el s
peed
dev
iatio
n be
twee
n th
e le
ft an
d rig
ht w
heel
s of
an
axle
exc
eeds
10%
.- W
heel
spe
ed d
evia
tion
of th
e w
heel
com
pare
d to
the
aver
age
fron
t axl
e w
heel
spe
ed is
gre
ater
than
14%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
15 -
14
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
8 Le
ft -
spec
ial i
nstr
uctio
ns
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
8 Le
ft
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror
shal
l be
rep
orte
d fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all m
onito
r th
e w
heel
spe
eds
only
whe
n th
e m
inim
um w
heel
spe
ed is
20
km/h
or
high
er.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
devi
atio
n’ e
rror
for
a w
heel
if th
e co
mpe
nsat
ed s
peed
of c
once
rned
whe
el d
evia
tes
from
the
max
imum
com
pens
ated
whe
el s
peed
by
mor
e th
an
10%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
16 -
2 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 8
Rig
ht
- da
ta e
rrat
ic, i
nter
mitt
ent
or in
corr
ect
Whe
el S
peed
Cha
tterin
g Fa
ilure
at A
xle
8 R
ight
Und
esira
ble
jum
ps in
whe
el s
peed
is r
ecog
nize
d as
cha
tterin
g.
Whe
n th
is b
ehav
ior
of c
hatte
ring
is a
ctiv
e fo
r ce
rtai
n tim
e pe
riod,
the
whe
el s
peed
cha
tterin
g fa
ult w
ill b
e re
cogn
ized
.D
etec
tion
is o
nly
activ
e if
vehi
cle
refe
renc
e sp
eed
is m
ore
than
15
km
/h.
• C
heck
the
fittin
g an
d m
ount
ing
of th
e re
leva
nt w
heel
spe
ed s
enso
r. (C
an v
ibra
tions
cau
se c
hatte
ring?
)•
Che
ck th
e re
leva
nt fo
unda
tion
brak
e fo
r in
adm
issi
ble
vibr
atio
ns
(ret
urn
sprin
g de
fect
? br
ake
linin
gs lo
osen
ed?)
.
5205
16 -
7 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 8
Rig
ht
- m
echa
nica
l sys
tem
not
re
spon
ding
pro
perly
or
out o
f adj
ustm
ent
Whe
el S
peed
Per
man
ent
Slip
Fai
lure
at A
xle
8 R
ight
Whe
n a
sens
or is
left
unco
nnec
ted
from
toot
h w
heel
ass
embl
y,
no w
heel
spe
eds
are
mea
sure
d in
this
par
ticul
ar w
heel
re
sulti
ng in
larg
er s
lip v
alue
on
this
whe
el. T
his
cond
ition
will
re
sult
in p
erm
anen
t slip
failu
re o
n th
is w
heel
.T
his
erro
r de
tect
ion
is p
ossi
ble
in th
ree
diffe
rent
way
s:S
ourc
e 1:
Bas
ed o
n w
heel
slip
sig
nal (
lam
bda
sign
al)
from
AB
S
cont
rol f
unct
ion.
Sou
rce
2: B
ased
on
whe
el s
peed
val
ues.
Sou
rce
3: W
hen
sens
or s
tatu
s is
inva
lid d
ue to
hig
h fr
eque
ncy
sign
al m
easu
red
by s
enso
r.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide?
• C
heck
the
whe
el s
peed
sen
sor
for
corr
ect v
olta
ge o
utpu
t. (I
s vo
ltage
ou
tput
suf
ficie
nt?)
• If
sens
or a
nd a
ir ga
p ar
e co
rrec
t, co
ntac
t WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
16 -
9 =
Whe
el
Spe
ed S
ensi
ng a
nd
Pol
ewhe
el -
Axl
e 8
Rig
ht
- ab
norm
al u
pdat
e ra
te
Whe
el S
peed
Jum
p D
own
Det
ectio
n at
Axl
e 8
Rig
htJu
mp
dow
n fa
ilure
is d
etec
ted
whe
n w
heel
spe
ed d
rops
su
dden
ly to
sta
ndst
ill fr
om h
ighe
r sp
eeds
.T
he fa
ilure
can
hap
pen
beca
use
of la
rger
air
gap
betw
een
toot
h w
heel
and
sen
sor
or d
ue to
sen
sor
getti
ng m
isal
igne
d w
hile
dr
ivin
g.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. Is
the
dist
ance
bet
wee
n to
oth
whe
el a
nd s
enso
r (a
ir ga
p) to
o w
ide
or is
th
e se
nsor
fitti
ng lo
ose?
• If
sens
or a
nd fi
tting
are
cor
rect
, con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5205
16 -
10
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
8 R
ight
- ab
norm
al ra
te o
f cha
nge
Whe
el S
peed
Jum
p U
p D
etec
tion
at A
xle
8 R
ight
Larg
er a
ir ga
p be
twee
n se
nsor
and
toot
h w
heel
will
lead
to
jum
p up
failu
re.
Jum
p up
failu
re w
ill b
e de
tect
ed w
hen
whe
els
star
t rot
atin
g fr
om s
tand
still
.
• C
heck
the
rele
vant
whe
el s
peed
sen
sor
and
its fi
tting
. (Is
the
sens
or
fittin
g lo
ose?
)•
If se
nsor
and
fitti
ng a
re c
orre
ct, c
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013167a
5 SPN FMI Fault Codes
52 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.37
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
16 -
13
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
8 R
ight
-
out o
f cal
ibra
tion
Impe
rmis
sabl
e T
ire S
ize
Det
ecte
d at
Axl
e 8
Rig
htW
hen
devi
atio
n of
tire
siz
e is
gre
ater
than
the
allo
wab
le li
mit,
th
e im
perm
issi
ble
tire
size
err
or s
hall
be s
et fo
r th
e co
ncer
ned
whe
el. T
he s
oftw
are
shal
l rep
ort ‘
impe
rmis
sibl
e tir
e si
ze e
rror
’ fo
r a
whe
el if
the
min
imum
of a
ll un
corr
ecte
d w
heel
spe
eds
in
the
vehi
cle
is g
reat
er th
an 2
0 km
/h. W
hen
the
prec
ondi
tions
ar
e sa
tisfie
d w
ith a
ny o
f the
follo
win
g co
nditi
ons,
then
the
impe
rmis
sibl
e tir
e si
ze e
rror
sha
ll be
set
for
the
conc
erne
d w
heel
:- T
he d
iffer
ence
in c
orre
ctio
n va
lues
bet
wee
n th
e le
ft an
d rig
ht
whe
els
of a
n ax
le e
xcee
ds 1
0%.
- C
orre
ctio
n va
lue
of th
e w
heel
is m
ore
than
14%
.- W
heel
spe
ed d
evia
tion
betw
een
the
left
and
right
whe
els
of a
n ax
le e
xcee
ds 1
0%.
- Whe
el s
peed
dev
iatio
n of
the
whe
el c
ompa
red
to th
e av
erag
e fr
ont a
xle
whe
el s
peed
is g
reat
er th
an 1
4%.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
16 -
14
= W
heel
S
peed
Sen
sing
and
P
olew
heel
- A
xle
8 R
ight
-
spec
ial i
nstr
uctio
ns
Impe
rmis
sabl
e D
evia
tion
of
Tire
Siz
e D
etec
ted
at A
xle
8 R
ight
Whe
n w
heel
spe
ed d
evia
tes
from
the
fast
est w
heel
by
mor
e th
an th
e al
low
able
lim
it, th
e im
perm
issi
ble
devi
atio
n er
ror
shal
l be
rep
orte
d fo
r th
e co
ncer
ned
whe
el.
The
sof
twar
e sh
all m
onito
r th
e w
heel
spe
eds
only
whe
n th
e m
inim
um w
heel
spe
ed is
20
km/h
or
high
er.
The
sof
twar
e sh
all r
epor
t ‘im
perm
issi
ble
devi
atio
n’ e
rror
for
a w
heel
if th
e co
mpe
nsat
ed s
peed
of c
once
rned
whe
el d
evia
tes
from
the
max
imum
com
pens
ated
whe
el s
peed
by
mor
e th
an
10%
.
• C
heck
all
tires
of t
he v
ehic
le c
once
rnin
g co
rrec
t siz
e.•
Che
ck th
e E
OL
para
met
ers
(tire
circ
umfe
renc
e, to
oth
whe
el te
eth
num
bers
).
5205
17 -
13
= T
ire
Siz
e C
ompe
nsat
ion
- M
emor
ybit
or
Par
amet
erfa
ilure
- o
ut o
f ca
libra
tion
Par
amet
er e
rror
of w
heel
di
amet
ers
and
pole
whe
el
teet
h nu
mbe
r
Whe
n th
e co
nfigu
red
tire
circ
umfe
renc
e of
a w
heel
is b
eyon
d th
e de
fined
lim
its fo
r th
e co
nfigu
red
toot
h w
heel
teet
h co
unt o
r if
the
toot
h w
heel
teet
h co
unt i
s in
valid
, thi
s er
ror
shal
l be
set.
• C
heck
the
rele
vant
EO
L pa
ram
eter
s an
d co
rrec
t the
m.
5205
17 -
31
= T
ire
Siz
e C
ompe
nsat
ion
- M
emor
ybit
or
Par
amet
erfa
ilure
-
cond
ition
exi
sts
Tire
Siz
e C
ompe
nsat
ion
Mem
ory
Bit
If an
‘im
perm
issi
ble
Tire
Siz
e’ e
rror
is d
etec
ted
by T
sc in
the
curr
ent i
gniti
on c
ycle
, the
err
or in
form
atio
n sh
ould
be
stor
ed fo
r us
e in
futu
re ig
nitio
n cy
cles
.T
he m
odul
e sh
all r
epor
t ‘T
scM
emor
yBitE
rror
’ if t
he s
tora
ge
para
met
er ‘P
RM
stT
ireA
djm
tMem
Bit’
is s
et a
nd if
any
of t
he
follo
win
g co
nditi
ons
is s
atis
fied:
1. A
cor
rect
ion
valu
e re
set r
eque
st is
not
rec
eive
d til
l 120
ms
sinc
e ig
nitio
n O
N.
2. A
cor
rect
ion
valu
e re
set r
eque
st is
pre
sent
eve
n af
ter
480
ms
sinc
e ig
nitio
n O
N.
• T
his
DT
C o
nly
indi
cate
s th
at a
noth
er fa
ilure
in th
e w
heel
spe
ed
sens
ing
was
det
ecte
d be
fore
. It i
s ne
cess
ary
to r
epai
r th
e w
heel
sp
eed
failu
res
that
are
sto
red
in th
e fa
ilure
mem
ory.
5205
20 -
3 =
AB
S
Gro
und
(Fro
nt A
xle)
-
volta
ge a
bove
nor
mal
or
shor
ted
high
Failu
re d
etec
tion
'Sho
rtU
b'
at A
bsG
roun
d (F
ront
Axl
e)A
sho
rt c
ircui
t to
high
leve
l at t
he r
elev
ant l
owsi
de-s
witc
h is
de
tect
ed a
fter
150
ms.
• C
heck
wiri
ng o
f rel
evan
t val
ves/
actu
ator
s. (
Is th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
5205
20 -
4 =
AB
S
Gro
und
(Fro
nt A
xle)
-
volta
ge b
elow
nor
mal
or
shor
ted
low
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
bsG
roun
d (F
ront
Axl
e)A
sho
rt c
ircui
t to
perm
anen
t GN
D-le
vel a
t the
rel
evan
t low
side
-sw
itch
is d
etec
ted:
- A
fter
150
ms
(if th
e lo
wsi
de s
witc
h is
ope
n).
- A
fter
2000
ms
(if th
e lo
wsi
de s
witc
h is
clo
sed)
.
• C
heck
wiri
ng o
f rel
evan
t val
ves/
actu
ator
s. (
Is th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t val
ves/
actu
ator
s. (
Is th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5205
21 -
3 =
AB
S
Gro
und
(Driv
e A
xle)
-
volta
ge a
bove
nor
mal
or
shor
ted
high
Failu
re d
etec
tion
'Sho
rtU
b'
at A
bsG
roun
d (D
rive
Axl
e)A
sho
rt c
ircui
t to
high
leve
l at t
he r
elev
ant l
owsi
de-s
witc
h is
de
tect
ed a
fter
150
ms.
• C
heck
wiri
ng o
f rel
evan
t val
ves/
actu
ator
s. (
Is th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
4013168a
5 SPN FMI Fault Codes
53WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.38
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
21 -
4 =
AB
S
Gro
und
(Driv
e A
xle)
-
volta
ge b
elow
nor
mal
or
shor
ted
low
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
bsG
roun
d (D
rive
Axl
e)A
sho
rt c
ircui
t to
perm
anen
t GN
D-le
vel a
t the
rel
evan
t low
side
-sw
itch
is d
etec
ted:
- A
fter
150
ms
(if th
e lo
wsi
de s
witc
h is
ope
n).
- A
fter
2000
ms
(if th
e lo
wsi
de s
witc
h is
clo
sed)
.
• C
heck
wiri
ng o
f rel
evan
t val
ves/
actu
ator
s. (
Is th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t val
ves/
actu
ator
s. (
Is th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5205
22 -
3 =
AB
S
Gro
und
(Int
erm
edia
te
Axl
e) -
vol
tage
abo
ve
norm
al o
r sh
orte
d hi
gh
Failu
re d
etec
tion
'Sho
rtU
b'
at A
bsG
roun
d (I
nter
med
iate
A
xle)
A s
hort
circ
uit t
o hi
gh le
vel a
t the
rel
evan
t low
side
-sw
itch
is
dete
cted
afte
r 15
0 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
s/ac
tuat
ors.
(Is
ther
e a
shor
t circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5205
22 -
4 =
AB
S
Gro
und
(Int
erm
edia
te
Axl
e) -
vol
tage
bel
ow
norm
al o
r sh
orte
d lo
w
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
bsG
roun
d (I
nter
med
iate
A
xle)
A s
hort
circ
uit t
o pe
rman
ent G
ND
-leve
l at t
he r
elev
ant l
owsi
de-
switc
h is
det
ecte
d:-
Afte
r 15
0 m
s (if
the
low
side
sw
itch
is o
pen)
.-
Afte
r 20
00 m
s (if
the
low
side
sw
itch
is c
lose
d).
• C
heck
wiri
ng o
f rel
evan
t val
ves/
actu
ator
s. (
Is th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t val
ves/
actu
ator
s. (
Is th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5205
23 -
3 =
AU
X
Gro
und
(Tra
iler
Mod
ulat
or)
- vo
ltage
ab
ove
norm
al o
r sh
orte
d hi
gh
Failu
re d
etec
tion
'Sho
rtU
b'
at A
uxG
roun
d (T
raile
r M
odul
ator
)
A s
hort
circ
uit t
o hi
gh le
vel a
t the
rel
evan
t low
side
-sw
itch
is
dete
cted
afte
r 15
0 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
s/ac
tuat
ors.
(Is
ther
e a
shor
t circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5205
23 -
4 =
AU
X
Gro
und
(Tra
iler
Mod
ulat
or)
- vo
ltage
be
low
nor
mal
or
shor
ted
low
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
uxili
ary
Out
put G
roun
d (T
raile
r M
odul
ator
)
A s
hort
circ
uit t
o pe
rman
ent G
ND
-leve
l at t
he r
elev
ant l
owsi
de-
switc
h is
det
ecte
d:-
Afte
r 15
0 m
s (if
the
low
side
sw
itch
is o
pen)
.-
Afte
r 20
00 m
s (if
the
low
side
sw
itch
is c
lose
d).
• C
heck
wiri
ng o
f rel
evan
t val
ves/
actu
ator
s. (
Is th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t val
ves/
actu
ator
s. (
Is th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5205
24 -
3 =
AU
X
Gro
und
(3/2
Val
ve
Gov
erno
r/R
egen
) -
volta
ge a
bove
nor
mal
or
shor
ted
high
Failu
re d
etec
tion
'Sho
rtU
b'
at A
uxG
roun
d (3
/2 V
alve
G
over
nor/
Reg
en)
A s
hort
circ
uit t
o hi
gh le
vel a
t the
rel
evan
t low
side
-sw
itch
is
dete
cted
afte
r 15
0 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
s/ac
tuat
ors.
(Is
ther
e a
shor
t circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5205
24 -
4 =
AU
X
Gro
und
(3/2
Val
ve
Gov
erno
r/R
egen
) -
volta
ge b
elow
nor
mal
or
shor
ted
low
Failu
re d
etec
tion
'Sho
rtG
nd'
at A
uxili
ary
Out
put G
roun
d (3
/2 V
alve
Gov
erno
r/R
egen
)
A s
hort
circ
uit t
o pe
rman
ent G
ND
-leve
l at t
he r
elev
ant l
owsi
de-
switc
h is
det
ecte
d:-
Afte
r 15
0 m
s (if
the
low
side
sw
itch
is o
pen)
.-
Afte
r 20
00 m
s (if
the
low
side
sw
itch
is c
lose
d).
• C
heck
wiri
ng o
f rel
evan
t val
ves/
actu
ator
s. (
Is th
ere
a sh
ort c
ircui
t?)
• C
heck
rel
evan
t val
ves/
actu
ator
s. (
Is th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5205
25 -
3 =
Sol
enoi
d Va
lve/
Diff
-Val
ve (
Driv
e A
xle
AB
V)
- vo
ltage
ab
ove
norm
al o
r sh
orte
d hi
gh
Failu
re d
etec
tion
'Sho
rtU
b'
at S
olen
oidV
alve
(D
rive
Axl
e A
BV
)
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
5205
25 -
4 =
Sol
enoi
d Va
lve/
Diff
-Val
ve (
Driv
e A
xle
AB
V)
- vo
ltage
be
low
nor
mal
or
shor
ted
low
Failu
re d
etec
tion
'Sho
rtG
nd'
at S
olen
oidV
alve
(D
rive
Axl
e A
BV
)
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in
activ
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
Rem
ark:
A s
hort
ed lo
ad a
lso
lead
s to
a s
hort
to G
ND
failu
re. A
sh
orte
d lo
ad is
det
ecte
d:
- A
fter
200
ms
afte
r ig
nitio
n-on
and
als
o if
valv
e is
act
ivat
ed.
- A
fter
1000
ms
if va
lve
is n
ot a
ctiv
ated
.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5205
25 -
5 =
Sol
enoi
d Va
lve/
Diff
-Val
ve (
Driv
e A
xle
AB
V)
- cu
rren
t bel
ow
norm
al o
r op
en c
ircui
t
Failu
re d
etec
tion
'Inte
rrup
tion'
at
Sol
enoi
dVal
ve (
Driv
e A
xle
AB
V)
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
4013169a
5 SPN FMI Fault Codes
54 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.39
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
25 -
13
= S
olen
oid
Valv
e/D
iff-V
alve
(D
rive
Axl
e A
BV
) -
out o
f ca
libra
tion
Failu
re d
etec
tion
'Ove
rEqu
ippe
d' a
t S
olen
oidV
alve
(D
rive
Axl
e A
BV
)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5205
26 -
3 =
Sol
enoi
d Va
lve/
Diff
-Val
ve (
Fron
t A
xle
AB
V)
- vo
ltage
ab
ove
norm
al o
r sh
orte
d hi
gh
Failu
re d
etec
tion
'Sho
rtU
b'
at S
olen
oidV
alve
(Fr
ont
Axl
e R
ight
)
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
5205
26 -
4 =
Sol
enoi
d Va
lve/
Diff
-Val
ve (
Fron
t A
xle
AB
V)
- vo
ltage
be
low
nor
mal
or
shor
ted
low
Failu
re d
etec
tion
'Sho
rtG
nd'
at S
olen
oidV
alve
(Fr
ont
Axl
e R
ight
)
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in
activ
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
Rem
ark:
A s
hort
ed lo
ad a
lso
lead
s to
a s
hort
to G
ND
failu
re. A
sh
orte
d lo
ad is
det
ecte
d:
- A
fter
200
ms
afte
r ig
nitio
n-on
and
als
o if
valv
e is
act
ivat
ed.
- A
fter
1000
ms
if va
lve
is n
ot a
ctiv
ated
.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5205
26 -
5 =
Sol
enoi
d Va
lve/
Diff
-Val
ve (
Fron
t A
xle
AB
V)
- cu
rren
t bel
ow
norm
al o
r op
en c
ircui
t
Failu
re d
etec
tion
'Inte
rrup
tion'
at
Sol
enoi
dVal
ve (
Fron
t Axl
e A
BV
)
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5205
26 -
13
= S
olen
oid
Valv
e/D
iff-V
alve
(Fr
ont
Axl
e A
BV
) -
out o
f ca
libra
tion
Failu
re d
etec
tion
'Ove
rEqu
ippe
d' a
t S
olen
oidV
alve
(Fr
ont A
xle
AB
V)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5205
27 -
3 =
Sol
enoi
d Va
lve/
Diff
-Val
ve (
Trai
ler
AB
V)
- vo
ltage
abo
ve
norm
al o
r sh
orte
d hi
gh
Failu
re d
etec
tion
'Sho
rtU
b'
at S
olen
oidV
alve
(Tr
aile
r A
BV
)
A s
hort
circ
uit t
o U
B o
f the
rel
evan
t act
uato
r is
det
ecte
d in
ac
tive
and
inac
tive
stat
es. T
he d
etec
tion
time
is 2
00 m
s.•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
a sh
ort c
ircui
t?)
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at
855-
228-
3203
.
5205
27 -
4 =
Sol
enoi
d Va
lve/
Diff
-Val
ve (
Trai
ler
AB
V)
- vo
ltage
bel
ow
norm
al o
r sh
orte
d lo
w
Failu
re d
etec
tion
'Sho
rtG
nd'
at S
olen
oidV
alve
(Tr
aile
r A
BV
)
A s
hort
circ
uit t
o G
ND
of t
he r
elev
ant a
ctua
tor
is d
etec
ted
in
activ
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
Rem
ark:
A s
hort
ed lo
ad a
lso
lead
s to
a s
hort
to G
ND
failu
re. A
sh
orte
d lo
ad is
det
ecte
d:
- A
fter
200
ms
afte
r ig
nitio
n-on
and
als
o if
valv
e is
act
ivat
ed.
- A
fter
1000
ms
if va
lve
is n
ot a
ctiv
ated
.
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e a
shor
t circ
uit?
)•
Che
ck r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
tern
al s
hort
circ
uit?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5205
27 -
5 =
Sol
enoi
d Va
lve/
Diff
-Val
ve (
Trai
ler
AB
V)
- cu
rren
t bel
ow
norm
al o
r op
en c
ircui
t
Failu
re d
etec
tion
'Inte
rrup
tion'
at
Sol
enoi
dVal
ve (
Trai
ler
AB
V)
An
inte
rrup
tion
of th
e re
leva
nt a
ctua
tor
is d
etec
ted
in a
ctiv
e an
d in
activ
e st
ates
. The
det
ectio
n tim
e is
200
ms.
• C
heck
for
corr
ect p
aram
eter
set
ting.
(Is
the
rele
vant
val
ve/a
ctua
tor
equi
pped
?)•
Che
ck w
iring
of r
elev
ant v
alve
/act
uato
r. (I
s th
ere
an in
terr
uptio
n?)
• C
heck
rel
evan
t val
ve/a
ctua
tor.
(Is
ther
e an
inte
rnal
inte
rrup
tion?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
5205
27 -
13
= S
olen
oid
Valv
e/D
iff-V
alve
(Tr
aile
r A
BV
) -
out o
f cal
ibra
tion
Failu
re d
etec
tion
'Ove
rEqu
ippe
d' a
t S
olen
oidV
alve
(Tr
aile
r A
BV
)
A fa
ilure
is d
etec
ted
if a
com
pone
nt is
con
nect
ed to
the
EC
U,
but i
t is
not a
ctiv
ated
in th
e pa
ram
eter
set
tings
.•
Che
ck fo
r co
rrec
t par
amet
er s
ettin
g. (
Is th
e re
leva
nt v
alve
/act
uato
r eq
uipp
ed?)
• C
heck
wiri
ng o
f rel
evan
t val
ve/a
ctua
tor.
(Is
EC
U p
in o
pen?
)•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
85
5-22
8-32
03.
4013170a
5 SPN FMI Fault Codes
55WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.40
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
30 -
0 =
O
verH
eatin
g -
Pre
ssur
e M
odul
atio
n Va
lve
AB
S
(Fro
nt A
xle
Left)
- d
ata
valid
, but
abo
ve n
orm
al
oper
atio
n ra
nge
(mos
t se
vere
leve
l)
Ove
rhea
ting
at A
BS
Val
ve
(Fro
nt A
xle
Left)
/Hig
h Le
vel
An
over
heat
ing
failu
re o
f the
rel
evan
t AB
S v
alve
is s
et if
the
AB
S v
alve
was
act
ivat
ed fo
r a
long
tim
e so
the
tem
pera
ture
lim
it (c
ritic
al s
econ
d le
vel)
was
rea
ched
.T
ime
for
criti
cal l
evel
:-
200
s (1
2V S
yste
m)
• A
BS
val
ves
wer
e ov
erhe
ated
. Red
uce
activ
atio
n tim
e es
peci
ally
of
hillh
olde
r an
d ha
ltbra
ke fu
nctio
n.
5205
30 -
15
= O
verH
eatin
g -
Pre
ssur
e M
odul
atio
n Va
lve
AB
S
(Fro
nt A
xle
Left)
- d
ata
valid
, but
abo
ve n
orm
al
oper
atio
n ra
nge
(leas
t se
vere
leve
l)
Ove
rhea
ting
at A
BS
Val
ve
(Fro
nt A
xle
Left)
/Low
Lev
elA
n ov
erhe
atin
g fa
ilure
of t
he r
elev
ant A
BS
val
ve is
set
if th
e A
BS
val
ve w
as a
ctiv
ated
for
a lo
ng ti
me
so th
e te
mpe
ratu
re li
mit
(pre
war
ning
leve
l) w
as r
each
ed.
Tim
e fo
r pr
ewar
ning
leve
l:-
180
s (1
2V S
yste
m)
• A
BS
val
ves
wer
e ov
erhe
ated
. Red
uce
activ
atio
n tim
e es
peci
ally
of
hillh
olde
r an
d ha
ltbra
ke fu
nctio
n.
5205
31 -
0 =
O
verH
eatin
g -
Pre
ssur
e M
odul
atio
n Va
lve
AB
S
(Fro
nt A
xle
Rig
ht)
- da
ta
valid
, but
abo
ve n
orm
al
oper
atio
n ra
nge
(mos
t se
vere
leve
l)
Ove
rhea
ting
at A
BS
Val
ve
(Fro
nt A
xle
Rig
ht)/
Hig
h Le
vel
An
over
heat
ing
failu
re o
f the
rel
evan
t AB
S v
alve
is s
et if
the
AB
S v
alve
was
act
ivat
ed fo
r a
long
tim
e so
the
tem
pera
ture
lim
it (c
ritic
al s
econ
d le
vel)
was
rea
ched
.T
ime
for
criti
cal l
evel
:-
200
s (1
2V S
yste
m)
• A
BS
val
ves
wer
e ov
erhe
ated
. Red
uce
activ
atio
n tim
e es
peci
ally
of
hillh
olde
r an
d ha
ltbra
ke fu
nctio
n.
5205
31 -
15
= O
verH
eatin
g -
Pre
ssur
e M
odul
atio
n Va
lve
AB
S
(Fro
nt A
xle
Rig
ht)
- da
ta
valid
, but
abo
ve n
orm
al
oper
atio
n ra
nge
(leas
t se
vere
leve
l)
Ove
rhea
ting
at A
BS
Val
ve
(Fro
nt A
xle
Rig
ht)/
Low
Le
vel
An
over
heat
ing
failu
re o
f the
rel
evan
t AB
S v
alve
is s
et if
the
AB
S v
alve
was
act
ivat
ed fo
r a
long
tim
e so
the
tem
pera
ture
lim
it (p
rew
arni
ng le
vel)
was
rea
ched
.T
ime
for
prew
arni
ng le
vel:
- 18
0 s
(12V
Sys
tem
)
• A
BS
val
ves
wer
e ov
erhe
ated
. Red
uce
activ
atio
n tim
e es
peci
ally
of
hillh
olde
r an
d ha
ltbra
ke fu
nctio
n.
5205
32 -
0 =
O
verH
eatin
g -
Pre
ssur
e M
odul
atio
n Va
lve
AB
S
(Driv
e A
xle
Left)
- d
ata
valid
, but
abo
ve n
orm
al
oper
atio
n ra
nge
(mos
t se
vere
leve
l)
Ove
rhea
ting
at A
BS
Val
ve
(Driv
e A
xle
Left)
/Hig
h Le
vel
An
over
heat
ing
failu
re o
f the
rel
evan
t AB
S v
alve
is s
et if
the
AB
S v
alve
was
act
ivat
ed fo
r a
long
tim
e so
the
tem
pera
ture
lim
it (c
ritic
al s
econ
d le
vel)
was
rea
ched
.T
ime
for
criti
cal l
evel
:-
200
s (1
2V S
yste
m)
• A
BS
val
ves
wer
e ov
erhe
ated
. Red
uce
activ
atio
n tim
e es
peci
ally
of
hillh
olde
r an
d ha
ltbra
ke fu
nctio
n.
5205
32 -
15
= O
verH
eatin
g -
Pre
ssur
e M
odul
atio
n Va
lve
AB
S
(Driv
e A
xle
Left)
- d
ata
valid
, but
abo
ve n
orm
al
oper
atio
n ra
nge
(leas
t se
vere
leve
l)
Ove
rhea
ting
at A
BS
Val
ve
(Driv
e A
xle
Left)
/Low
Lev
elA
n ov
erhe
atin
g fa
ilure
of t
he r
elev
ant A
BS
val
ve is
set
if th
e A
BS
val
ve w
as a
ctiv
ated
for
a lo
ng ti
me
so th
e te
mpe
ratu
re li
mit
(pre
war
ning
leve
l) w
as r
each
ed.
Tim
e fo
r pr
ewar
ning
leve
l:-
180
s (1
2V S
yste
m)
• A
BS
val
ves
wer
e ov
erhe
ated
. Red
uce
activ
atio
n tim
e es
peci
ally
of
hillh
olde
r an
d ha
ltbra
ke fu
nctio
n.
5205
33 -
0 =
O
verH
eatin
g -
Pre
ssur
e M
odul
atio
n Va
lve
AB
S
(Driv
e A
xle
Rig
ht)
- da
ta
valid
, but
abo
ve n
orm
al
oper
atio
n ra
nge
(mos
t se
vere
leve
l)
Ove
rhea
ting
at A
BS
Val
ve
(Driv
e A
xle
Rig
ht)/
Hig
h Le
vel
An
over
heat
ing
failu
re o
f the
rel
evan
t AB
S v
alve
is s
et if
the
AB
S v
alve
was
act
ivat
ed fo
r a
long
tim
e so
the
tem
pera
ture
lim
it (c
ritic
al s
econ
d le
vel)
was
rea
ched
.T
ime
for
criti
cal l
evel
:-
200
s (1
2V S
yste
m)
• A
BS
val
ves
wer
e ov
erhe
ated
. Red
uce
activ
atio
n tim
e es
peci
ally
of
hillh
olde
r an
d ha
ltbra
ke fu
nctio
n.
4013171a
5 SPN FMI Fault Codes
56 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.41
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5205
33 -
15
= O
verH
eatin
g -
Pre
ssur
e M
odul
atio
n Va
lve
AB
S
(Driv
e A
xle
Rig
ht)
- da
ta
valid
, but
abo
ve n
orm
al
oper
atio
n ra
nge
(leas
t se
vere
leve
l)
Ove
rhea
ting
at A
BS
Val
ve
(Driv
e A
xle
Rig
ht)/
Low
Le
vel
An
over
heat
ing
failu
re o
f the
rel
evan
t AB
S v
alve
is s
et if
the
AB
S v
alve
was
act
ivat
ed fo
r a
long
tim
e so
the
tem
pera
ture
lim
it (p
rew
arni
ng le
vel)
was
rea
ched
.T
ime
for
prew
arni
ng le
vel:
- 18
0 s
(12V
Sys
tem
)
• A
BS
val
ves
wer
e ov
erhe
ated
. Red
uce
activ
atio
n tim
e es
peci
ally
of
hillh
olde
r an
d ha
ltbra
ke fu
nctio
n.
5205
34 -
0 =
O
verH
eatin
g -
Pre
ssur
e M
odul
atio
n Va
lve
AB
S
(Int
erm
edia
te A
xle
Left)
-
data
val
id, b
ut a
bove
no
rmal
ope
ratio
n ra
nge
(mos
t sev
ere
leve
l)
Ove
rhea
ting
at A
BS
Val
ve
(Int
erm
edia
te A
xle
Left)
/H
igh
Leve
l
An
over
heat
ing
failu
re o
f the
rel
evan
t AB
S v
alve
is s
et if
the
AB
S v
alve
was
act
ivat
ed fo
r a
long
tim
e so
the
tem
pera
ture
lim
it (c
ritic
al s
econ
d le
vel)
was
rea
ched
.T
ime
for
criti
cal l
evel
:-
200
s (1
2V S
yste
m)
• A
BS
val
ves
wer
e ov
erhe
ated
. Red
uce
activ
atio
n tim
e es
peci
ally
of
hillh
olde
r an
d ha
ltbra
ke fu
nctio
n.
5205
34 -
15
= O
verH
eatin
g -
Pre
ssur
e M
odul
atio
n Va
lve
AB
S
(Int
erm
edia
te A
xle
Left)
-
data
val
id, b
ut a
bove
no
rmal
ope
ratio
n ra
nge
(leas
t sev
ere
leve
l)
Ove
rhea
ting
at A
BS
Val
ve
(Int
erm
edia
te A
xle
Left)
/Lo
w L
evel
An
over
heat
ing
failu
re o
f the
rel
evan
t AB
S v
alve
is s
et if
the
AB
S v
alve
was
act
ivat
ed fo
r a
long
tim
e so
the
tem
pera
ture
lim
it (p
rew
arni
ng le
vel)
was
rea
ched
.T
ime
for
prew
arni
ng le
vel:
- 18
0 s
(12V
Sys
tem
)
• A
BS
val
ves
wer
e ov
erhe
ated
. Red
uce
activ
atio
n tim
e es
peci
ally
of
hillh
olde
r an
d ha
ltbra
ke fu
nctio
n.
5205
35 -
0 =
O
verH
eatin
g -
Pre
ssur
e M
odul
atio
n Va
lve
AB
S
(Int
erm
edia
te A
xle
Rig
ht)
- da
ta v
alid
, but
abo
ve
norm
al o
pera
tion
rang
e (m
ost s
ever
e le
vel)
Ove
rhea
ting
at A
BS
Val
ve
(Int
erm
edia
te A
xle
Rig
ht)/
Hig
h Le
vel
An
over
heat
ing
failu
re o
f the
rel
evan
t AB
S v
alve
is s
et if
the
AB
S v
alve
was
act
ivat
ed fo
r a
long
tim
e so
the
tem
pera
ture
lim
it (c
ritic
al s
econ
d le
vel)
was
rea
ched
.T
ime
for
criti
cal l
evel
:-
200
s (1
2V S
yste
m)
• A
BS
val
ves
wer
e ov
erhe
ated
. Red
uce
activ
atio
n tim
e es
peci
ally
of
hillh
olde
r an
d ha
ltbra
ke fu
nctio
n.
5205
35 -
15
= O
verH
eatin
g -
Pre
ssur
e M
odul
atio
n Va
lve
AB
S
(Int
erm
edia
te A
xle
Rig
ht)
- da
ta v
alid
, but
abo
ve
norm
al o
pera
tion
rang
e (le
ast s
ever
e le
vel)
Ove
rhea
ting
at A
BS
Val
ve
(Int
erm
edia
te A
xle
Rig
ht)/
Low
Lev
el
An
over
heat
ing
failu
re o
f the
rel
evan
t AB
S v
alve
is s
et if
the
AB
S v
alve
was
act
ivat
ed fo
r a
long
tim
e so
the
tem
pera
ture
lim
it (p
rew
arni
ng le
vel)
was
rea
ched
.T
ime
for
prew
arni
ng le
vel:
- 18
0 s
(12V
Sys
tem
)
• A
BS
val
ves
wer
e ov
erhe
ated
. Red
uce
activ
atio
n tim
e es
peci
ally
of
hillh
olde
r an
d ha
ltbra
ke fu
nctio
n.
5205
36 -
0 =
O
verH
eatin
g -
Pre
ssur
e M
odul
atio
n Va
lve
AB
S
(Tra
iler
Con
trol
) -
data
va
lid, b
ut a
bove
nor
mal
op
erat
ing
rang
e (m
ost
seve
re le
vel)
Ove
rhea
ting
at A
BS
Val
ve
(Tra
iler
Con
trol
)/H
igh
Leve
lA
n ov
erhe
atin
g fa
ilure
of t
he r
elev
ant A
BS
val
ve is
set
if th
e A
BS
val
ve w
as a
ctiv
ated
for
a lo
ng ti
me
so th
e te
mpe
ratu
re li
mit
(crit
ical
sec
ond
leve
l) w
as r
each
ed.
Tim
e fo
r cr
itica
l lev
el:
- 20
0 s
(12V
Sys
tem
)
• A
BS
val
ves
wer
e ov
erhe
ated
. Red
uce
activ
atio
n tim
e es
peci
ally
of
hillh
olde
r an
d ha
ltbra
ke fu
nctio
n.
5205
36 -
15
= O
verH
eatin
g -
Pre
ssur
e M
odul
atio
n Va
lve
AB
S
(Tra
iler
Con
trol
) -
data
va
lid, b
ut a
bove
nor
mal
op
erat
ing
rang
e (le
ast
seve
re le
vel)
Ove
rhea
ting
at A
BS
Val
ve
(Tra
iler
Con
trol
)/Lo
w L
evel
An
over
heat
ing
failu
re o
f the
rel
evan
t AB
S v
alve
is s
et if
the
AB
S v
alve
was
act
ivat
ed fo
r a
long
tim
e so
the
tem
pera
ture
lim
it (p
rew
arni
ng le
vel)
was
rea
ched
.T
ime
for
prew
arni
ng le
vel:
- 18
0 s
(12V
Sys
tem
)
• A
BS
val
ves
wer
e ov
erhe
ated
. Red
uce
activ
atio
n tim
e es
peci
ally
of
hillh
olde
r an
d ha
ltbra
ke fu
nctio
n.
5208
00 -
2 =
Gyr
o Te
mpe
ratu
re S
igna
l -
data
err
atic
, int
erm
itten
t or
inco
rrec
t
Yaw
Rat
e Te
mpe
ratu
re
Ran
ge C
heck
The
failu
re is
det
ecte
d if
the
valid
rang
e of
the
tem
pera
ture
se
nsor
sig
nal w
as le
ft.•
Che
ck a
nd r
epla
ce th
e E
SC
mod
ule.
4013172a
5 SPN FMI Fault Codes
57WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.42
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5208
00 -
10
= G
yro
Tem
pera
ture
Sig
nal -
ab
norm
al ra
te o
f cha
nge
Yaw
Rat
e Te
mpe
ratu
re
Gra
dien
t Che
ckT
he fa
ilure
is d
etec
ted
if th
e gr
adie
nt o
f the
tem
pera
ture
sen
sor
sign
al w
as to
o hi
gh.
• C
heck
and
rep
lace
the
ES
C m
odul
e.
5230
00 -
2 =
Inva
lid
Par
amet
ers
Par
t 1 -
dat
a er
ratic
, int
erm
itten
t or
inco
rrec
t
Gen
eric
Che
ck fo
r im
plau
sibl
e E
OL
Par
amet
ers
The
gen
eric
par
amet
er p
laus
ibili
ty c
heck
eva
luat
es if
the
EO
L pa
ram
eter
s ar
e co
mpl
ete
and
plau
sibl
e.
If a
para
met
er in
com
patib
ility
was
det
ecte
d, d
etai
led
info
rmat
ion
abou
t the
inco
mpa
tible
par
amet
er v
alue
will
be
stor
ed. T
his
para
met
er in
com
patib
ility
info
rmat
ion
can
be r
ead
out t
o id
entif
y th
e fa
ulty
par
amet
er.
• C
heck
the
EO
L pa
ram
eter
s an
d co
rrec
t the
m.
• R
emar
k: If
an
inco
mpa
tibili
ty w
as d
etec
ted,
spe
cial
info
rmat
ion
abou
t im
plau
sibl
e pa
ram
eter
val
ue is
sto
red.
Thi
s in
form
atio
n ca
n be
re
ad o
ut b
y di
agno
sis
to lo
caliz
e th
e fa
ulty
par
amet
er (
serv
ice
22 1
C
08 ‘P
rmP
laus
y Fa
ilure
Cod
e’).
The
des
crip
tion
of th
e nu
mbe
rs c
an
be fo
und
in a
sep
arat
e lis
t ‘P
aram
eter
Pla
usib
ility
Fai
lure
ID’.
5230
00 -
22
= In
valid
P
aram
eter
s P
art 1
-
rese
rved
(22
)
Inva
lid P
aram
eter
Set
ting
for
CO
G-f
unct
ion
(cen
ter
of
grav
ity)
The
par
amet
ers
for
the
CO
G fu
nctio
n (c
alcu
latio
n of
cen
ter
of
grav
ity)
are
not s
et c
orre
ctly
.•
Che
ck th
e re
leva
nt E
OL
para
met
ers
and
corr
ect t
hem
.
5230
00 -
23
= In
valid
P
aram
eter
s P
art 1
-
rese
rved
(23
)
Inva
lid P
aram
eter
Set
ting
for
RS
C-f
unct
ion
(rol
l st
abili
ty c
ontr
ol)
Thi
s pa
ram
eter
failu
re is
set
if th
e fo
llow
ing
cond
ition
exi
sts:
- P
RD
stVe
hWith
Aw
d.va
lue
= 1
• C
heck
the
rele
vant
EO
L pa
ram
eter
s an
d co
rrec
t the
m.
5230
00 -
28
= In
valid
P
aram
eter
s P
art 1
-
rese
rved
(28
)
Par
amet
er e
rror
of s
uppl
y vo
ltage
leve
l thr
esho
lds
It is
che
cked
if th
e th
resh
olds
for
the
diffe
rent
vol
tage
leve
ls a
re
in c
orre
ct o
rder
.•
Che
ck th
e re
leva
nt E
OL
para
met
ers
and
corr
ect t
hem
.
5230
00 -
29
= In
valid
P
aram
eter
s P
art 1
-
rese
rved
(29
)
Par
amet
er e
rror
of
acce
lera
tor
peda
l low
idle
sw
itch
thre
shol
ds
It is
che
cked
if th
e th
resh
olds
for t
he h
yste
resi
s ar
e se
t cor
rect
ly.
The
sof
twar
e se
ts a
par
amet
er e
rror
whe
n th
e th
resh
olds
are
no
t in
the
follo
win
g or
der ‘
Thd
On
< T
hdO
ff’.
• C
heck
the
rele
vant
EO
L pa
ram
eter
s an
d co
rrec
t the
m.
5230
00 -
30
= In
valid
P
aram
eter
s P
art 1
-
rese
rved
(30
)
Par
amet
er e
rror
of
acce
lera
tor
peda
l pos
ition
th
resh
olds
.yltcerroc tes era siseretsyh eht rof sdlohserht eht fi dekcehc si tI The
sof
twar
e se
ts a
par
amet
er e
rror
whe
n th
e th
resh
olds
are
no
t in
the
follo
win
g or
der ‘
Thd
Off
< T
hdO
n’.
• C
heck
the
rele
vant
EO
L pa
ram
eter
s an
d co
rrec
t the
m.
5231
00 -
22
= S
afet
y M
onito
r - W
heel
Spe
ed
Sig
nals
- r
eser
ved
(22)
Saf
ety
Mon
itor
for
Whe
elsp
eed
Cal
cula
tion
(Fro
nt A
xle
Left)
A m
onito
r fa
ilure
of t
he r
elev
ant w
heel
spe
ed c
alcu
latio
n is
de
tect
ed if
:-
Cou
nter
val
ue is
0 a
nd w
heel
spe
ed v
alue
is n
ot b
etw
een
0 m
/s a
nd 1
m/s
. -
Cou
nter
val
ue is
con
stan
t for
mor
e th
an 1
80 m
s an
d w
heel
sp
eed
valu
e is
not
bet
wee
n 0m
/s a
nd 1
m/s
.-
Cou
nter
val
ue is
not
con
stan
t for
mor
e th
an 1
80 m
s an
d no
t 0
and
whe
el s
peed
val
ue is
not
bet
wee
n m
in_W
heel
spe
ed a
nd
max
_Whe
el s
peed
.R
emar
k: T
he m
onito
r (o
n/of
f) a
nd it
s se
nsib
ility
can
be
chan
ged
by a
par
amet
er.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
00 -
23
= S
afet
y M
onito
r - W
heel
Spe
ed
Sig
nals
- r
eser
ved
(23)
Saf
ety
Mon
itor
for
Whe
elsp
eed
Cal
cula
tion
(Fro
nt A
xle
Rig
ht)
A m
onito
r fa
ilure
of t
he r
elev
ant w
heel
spe
ed c
alcu
latio
n is
de
tect
ed if
:-
Cou
nter
val
ue is
0 a
nd w
heel
spe
ed v
alue
is n
ot b
etw
een
0 m
/s a
nd 1
m/s
. -
Cou
nter
val
ue is
con
stan
t for
mor
e th
an 1
80 m
s an
d w
heel
sp
eed
valu
e is
not
bet
wee
n 0m
/s a
nd 1
m/s
.-
Cou
nter
val
ue is
not
con
stan
t for
mor
e th
an 1
80 m
s an
d no
t 0
and
whe
el s
peed
val
ue is
not
bet
wee
n m
in_W
heel
spe
ed a
nd
max
_Whe
el s
peed
.R
emar
k: T
he m
onito
r (o
n/of
f) a
nd it
s se
nsib
ility
can
be
chan
ged
by a
par
amet
er.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
4013173a
5 SPN FMI Fault Codes
58 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.43
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5231
00 -
24
= S
afet
y M
onito
r - W
heel
Spe
ed
Sig
nals
- r
eser
ved
(24)
Saf
ety
Mon
itor
for
Whe
elsp
eed
Cal
cula
tion
(Driv
e A
xle
Left)
A m
onito
r fa
ilure
of t
he r
elev
ant w
heel
spe
ed c
alcu
latio
n is
de
tect
ed if
:-
Cou
nter
val
ue is
0 a
nd w
heel
spe
ed v
alue
is n
ot b
etw
een
0 m
/s a
nd 1
m/s
. -
Cou
nter
val
ue is
con
stan
t for
mor
e th
an 1
80 m
s an
d w
heel
sp
eed
valu
e is
not
bet
wee
n 0m
/s a
nd 1
m/s
.-
Cou
nter
val
ue is
not
con
stan
t for
mor
e th
an 1
80 m
s an
d no
t 0
and
whe
el s
peed
val
ue is
not
bet
wee
n m
in_W
heel
spe
ed a
nd
max
_Whe
el s
peed
.R
emar
k: T
he m
onito
r (o
n/of
f) a
nd it
s se
nsib
ility
can
be
chan
ged
by a
par
amet
er.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
00 -
25
= S
afet
y M
onito
r - W
heel
Spe
ed
Sig
nals
- r
eser
ved
(25)
Saf
ety
Mon
itor
for
Whe
elsp
eed
Cal
cula
tion
(Driv
e A
xle
Rig
ht)
A m
onito
r fa
ilure
of t
he r
elev
ant w
heel
spe
ed c
alcu
latio
n is
de
tect
ed if
:-
Cou
nter
val
ue is
0 a
nd w
heel
spe
ed v
alue
is n
ot b
etw
een
0 m
/s a
nd 1
m/s
. -
Cou
nter
val
ue is
con
stan
t for
mor
e th
an 1
80 m
s an
d w
heel
sp
eed
valu
e is
not
bet
wee
n 0m
/s a
nd 1
m/s
.-
Cou
nter
val
ue is
not
con
stan
t for
mor
e th
an 1
80 m
s an
d no
t 0
and
whe
el s
peed
val
ue is
not
bet
wee
n m
in_W
heel
spe
ed a
nd
max
_Whe
el s
peed
.R
emar
k: T
he m
onito
r (o
n/of
f) a
nd it
s se
nsib
ility
can
be
chan
ged
by a
par
amet
er.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
00 -
26
= S
afet
y M
onito
r - W
heel
Spe
ed
Sig
nals
- r
eser
ved
(26)
Saf
ety
Mon
itor
for
Whe
elsp
eed
Cal
cula
tion
(Int
erm
edia
te A
xle
Left)
A m
onito
r fa
ilure
of t
he r
elev
ant w
heel
spe
ed c
alcu
latio
n is
de
tect
ed if
:-
Cou
nter
val
ue is
0 a
nd w
heel
spe
ed v
alue
is n
ot b
etw
een
0 m
/s a
nd 1
m/s
. -
Cou
nter
val
ue is
con
stan
t for
mor
e th
an 1
80 m
s an
d w
heel
sp
eed
valu
e is
not
bet
wee
n 0m
/s a
nd 1
m/s
.-
Cou
nter
val
ue is
not
con
stan
t for
mor
e th
an 1
80 m
s an
d no
t 0
and
whe
el s
peed
val
ue is
not
bet
wee
n m
in_W
heel
spe
ed a
nd
max
_Whe
el s
peed
.R
emar
k: T
he m
onito
r (o
n/of
f) a
nd it
s se
nsib
ility
can
be
chan
ged
by a
par
amet
er.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
00 -
27
= S
afet
y M
onito
r - W
heel
Spe
ed
Sig
nals
- r
eser
ved
(27)
Saf
ety
Mon
itor
for
Whe
elsp
eed
Cal
cula
tion
(Int
erm
edia
te A
xle
Rig
ht)
A m
onito
r fa
ilure
of t
he r
elev
ant w
heel
spe
ed c
alcu
latio
n is
de
tect
ed if
:-
Cou
nter
val
ue is
0 a
nd w
heel
spe
ed v
alue
is n
ot b
etw
een
0 m
/s a
nd 1
m/s
. -
Cou
nter
val
ue is
con
stan
t for
mor
e th
an 1
80 m
s an
d w
heel
sp
eed
valu
e is
not
bet
wee
n 0m
/s a
nd 1
m/s
.-
Cou
nter
val
ue is
not
con
stan
t for
mor
e th
an 1
80 m
s an
d no
t 0
and
whe
el s
peed
val
ue is
not
bet
wee
n m
in_W
heel
spe
ed a
nd
max
_Whe
el s
peed
.R
emar
k: T
he m
onito
r (o
n/of
f) a
nd it
s se
nsib
ility
can
be
chan
ged
by a
par
amet
er.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
01 -
22
= S
afet
y M
onito
r -
AB
S F
unct
ion
- re
serv
ed (
22)
Saf
ety
Mon
itor
for
AB
S
Fun
ctio
n (P
art 1
)T
he A
BS
Mon
itor
shal
l pre
vent
the
AB
S fu
nctio
n fr
om a
ctiv
atin
g A
BS
con
trol
on
any
whe
el w
ithou
t nec
essi
ty.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
01 -
23
= S
afet
y M
onito
r -
AB
S F
unct
ion
- re
serv
ed (
23)
Saf
ety
Mon
itor
for
AB
S
Fun
ctio
n (P
art 2
)T
he A
BS
Mon
itor
ensu
res
that
AB
S fu
nctio
n sh
all n
ot s
witc
h of
f AB
S c
ontr
ol a
t the
RA
with
out s
witc
hing
off
AB
S c
ontr
ol a
t th
e FA
.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
02 -
22
= S
afet
y M
onito
r -
ATC
Fun
ctio
n -
rese
rved
(22
)
Saf
ety
Mon
itor
for
ATC
F
unct
ion
Thi
s sa
fety
mon
itor
chec
ks th
e co
rrec
t fun
ctio
n of
the
auto
mat
ic
tract
ion
cont
rol.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
4013174a
5 SPN FMI Fault Codes
59WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.44D
TC S
PN
FM
IFa
ilure
Det
ectio
n N
ame
Failu
re D
etec
tion
Des
crip
tion
Rep
air
5231
03 -
22
= S
afet
y M
onito
r -
RS
C F
unct
ion
- re
serv
ed (
22)
Saf
ety
Mon
itor
for
RS
C
Fun
ctio
nT
his
safe
ty m
onito
r ch
ecks
the
corr
ect f
unct
ion
of th
e ro
ll st
abili
ty c
ontr
ol.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
04 -
22
= S
afet
y M
onito
r - Y
C F
unct
ion
- re
serv
ed (
22)
Saf
ety
Mon
itor
for Y
C
Fun
ctio
nT
his
safe
ty m
onito
r ch
ecks
the
corr
ect f
unct
ion
of th
e ya
w
cont
rol.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
05 -
22
= S
afet
y M
onito
r -
AR
B F
unct
ion
- re
serv
ed (
22)
Saf
ety
Mon
itor
for
AR
B
Fun
ctio
nT
his
safe
ty m
onito
r ch
ecks
the
corr
ect f
unct
ion
of th
e an
ti-ro
ll br
ake.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
06 -
22
= S
afet
y M
onito
r -
XB
R F
unct
ion
- re
serv
ed (
22)
Saf
ety
Mon
itor
for
XB
R
Fun
ctio
nT
his
safe
ty m
onito
r ch
ecks
the
corr
ect f
unct
ion
of th
e ex
tern
al
brak
e re
ques
t.•
Saf
ety
Mon
itor
has
dete
cted
a S
W-p
robl
em.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5231
07 -
22
= S
afet
y M
onito
r -
BM
Fun
ctio
n -
rese
rved
(22
)
Saf
ety
Mon
itor
for
BM
F
unct
ion
Thi
s sa
fety
mon
itor
chec
ks th
e co
rrec
t fun
ctio
n of
the
brak
e m
anag
emen
t.•
Saf
ety
Mon
itor
has
dete
cted
a S
W-p
robl
em.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5231
08 -
22
= S
afet
y M
onito
r -
CS
C F
unct
ion
- re
serv
ed (
22)
Saf
ety
Mon
itor
for
CS
C
Fun
ctio
nT
his
safe
ty m
onito
r ch
ecks
the
corr
ect f
unct
ion
of th
e co
mbi
natio
n st
abili
ty c
ontr
ol.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
09 -
22
= S
afet
y M
onito
r -
Fric
tion
Bra
ke
Dec
ider
Fun
ctio
n -
rese
rved
(22
)
Saf
ety
Mon
itor
for
Fric
tion
Bra
ke D
ecid
er F
unct
ion
Thi
s sa
fety
mon
itor
chec
ks th
e co
rrec
t fun
ctio
n of
the
fric
tion
brak
e de
cide
r.•
Saf
ety
Mon
itor
has
dete
cted
a S
W-p
robl
em.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5231
10 -
22
= S
afet
y M
onito
r - V
alve
Com
bi
Fun
ctio
n -
rese
rved
(22
)
Saf
ety
Mon
itor
for V
alve
C
ombi
Fun
ctio
n (P
art 1
a)T
his
safe
ty m
onito
r ch
ecks
gen
eric
sys
tem
func
tions
(P
art 1
a/F
SR
_02)
. Che
ck m
axim
um p
ress
ure
diffe
renc
e (le
ft/rig
ht)
at
fron
t axl
e (a
t spe
eds
high
er th
an 2
0 km
/h).
TS
R_0
2.1:
Mon
itor
dete
cts
failu
re if
: -
All
thre
e di
ff-va
lves
are
pow
ered
-off
for
a tim
e T
1=20
00 m
s be
fore
they
are
pow
ered
-on,
-
And
then
all
diff-
valv
es r
emai
n in
pow
ered
-on
stat
e fo
r T2≤
500
ms,
-
And
par
alle
lly d
urin
g tim
e sp
an T
2, th
e fr
ont a
xle
left
and
right
inle
t val
ves
are
pow
ered
(cl
osed
) w
ith a
tim
e sp
an (
not
sim
ulta
neou
sly)
for
time
T3>
300
ms.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
10 -
23
= S
afet
y M
onito
r - V
alve
Com
bi
Fun
ctio
n -
rese
rved
(23
)
Saf
ety
Mon
itor
for V
alve
C
ombi
Fun
ctio
n (P
art 1
b)T
his
safe
ty m
onito
r ch
ecks
gen
eric
sys
tem
func
tions
(P
art 1
b/F
SR
_02)
. Che
ck m
axim
um p
ress
ure
diffe
renc
e (le
ft/rig
ht)
at
fron
t axl
e (a
t spe
eds
high
er th
an 2
0 km
/h).
TS
R_0
2.2:
Mon
itor
dete
cts
failu
re if
:- T
he fr
ont a
xle
outle
t val
ve r
emai
ns p
ower
ed-o
n (o
pen)
and
the
inle
t val
ve is
pow
ered
-off
(ope
n) fo
r tim
e T
4≥10
0 m
s.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
10 -
24
= S
afet
y M
onito
r - V
alve
Com
bi
Fun
ctio
n -
rese
rved
(24
)
Saf
ety
Mon
itor
for V
alve
C
ombi
Fun
ctio
n (P
art 2
)T
his
safe
ty m
onito
r ch
ecks
gen
eric
sys
tem
func
tions
(P
art 2
/F
SR
_16)
. Fau
lt de
tect
ion
if FA
and
RA
are
bra
ked
sudd
enly
w
ithou
t TC
V.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
10 -
25
= S
afet
y M
onito
r - V
alve
Com
bi
Fun
ctio
n -
rese
rved
(25
)
Saf
ety
Mon
itor
for V
alve
C
ombi
Fun
ctio
n (P
art 3
)T
his
safe
ty m
onito
r ch
ecks
gen
eric
sys
tem
func
tions
(P
art 3
/F
SR
_21.
2). M
onito
r sh
all s
witc
h to
saf
e st
ate
if A
BS
val
ve
activ
atio
n is
don
e w
ithou
t req
uest
from
the
deci
der.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
10 -
26
= S
afet
y M
onito
r - V
alve
Com
bi
Fun
ctio
n -
rese
rved
(26
)
Saf
ety
Mon
itor
for V
alve
C
ombi
Fun
ctio
n (P
art 4
)T
his
safe
ty m
onito
r ch
ecks
gen
eric
sys
tem
func
tions
(P
art 4
/F
SR
_35)
. Pla
usib
ility
che
ck o
f bra
ke v
alve
con
trol
to a
void
su
dden
bra
king
(10
bar
/sec
) of
truc
k an
d tra
iler.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
4013175a
5 SPN FMI Fault Codes
60 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.45
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5231
10 -
27
= S
afet
y M
onito
r - V
alve
Com
bi
Fun
ctio
n -
rese
rved
(27
)
Saf
ety
Mon
itor
for V
alve
C
ombi
Fun
ctio
n (P
art 5
a)T
his
safe
ty m
onito
r ch
ecks
gen
eric
sys
tem
func
tions
(P
art 5
a/F
SR
_43)
. Che
ck m
axim
um p
ress
ure
diffe
renc
e le
ft/rig
ht a
t rea
r ax
leT
SR
_43.
1: M
onito
r de
tect
s fa
ilure
if:
- A
ll th
ree
diff-
valv
es a
re p
ower
ed-o
ff fo
r a
time
T1=
2000
ms
befo
re th
ey a
re p
ower
ed-o
n,
- A
nd th
en a
ll di
ff-va
lves
rem
ain
in p
ower
ed-o
n st
ate
for T
2≤50
0 m
s,
- A
nd p
aral
lelly
dur
ing
time
span
T2,
the
rear
axl
e le
ft an
d rig
ht in
let v
alve
s ar
e po
wer
ed w
ith d
iffer
ent v
olta
ges
for
time
T3>
300
ms.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
10 -
28
= S
afet
y M
onito
r - V
alve
Com
bi
Fun
ctio
n -
rese
rved
(28
)
Saf
ety
Mon
itor
for V
alve
C
ombi
Fun
ctio
n (P
art 5
b)T
his
safe
ty m
onito
r ch
ecks
gen
eric
sys
tem
func
tions
(P
art 5
b/F
SR
_43)
. Che
ck m
axim
um p
ress
ure
diffe
renc
e le
ft/rig
ht a
t rea
r ax
le.
TS
R_4
3.2:
Mon
itor
dete
cts
failu
re if
: - T
he r
ear
axle
out
let v
alve
rem
ains
pow
ered
-on
(ope
n) a
nd th
e in
let v
alve
is p
ower
ed-o
ff (o
pen)
for
time
T4≥
100
ms.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
10 -
29
= S
afet
y M
onito
r - V
alve
Com
bi
Fun
ctio
n -
rese
rved
(29
)
Saf
ety
Mon
itor
for V
alve
C
ombi
Fun
ctio
n (P
art 6
)T
his
safe
ty m
onito
r ch
ecks
gen
eric
sys
tem
func
tions
(P
art 6
/F
SR
_47.
1). V
alve
con
trol
mon
itor
shal
l che
ck if
the
who
le r
ear
axle
is b
lock
ed a
nd a
t lea
st 1
fron
t whe
el is
not
blo
cked
. In
this
ca
se, t
he m
onito
r sh
all a
lso
switc
h of
f the
AB
S c
ontr
ol o
n fr
ont
axle
.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
10 -
30
= S
afet
y M
onito
r - V
alve
Com
bi
Fun
ctio
n -
rese
rved
(30
)
Saf
ety
Mon
itor
for V
alve
C
ombi
Fun
ctio
n (P
art 7
)T
his
safe
ty m
onito
r ch
ecks
gen
eric
sys
tem
func
tions
(P
art 7
/F
SR
_49)
. Mon
itorin
g of
sw
itchi
ng O
N o
f one
or
mor
e A
BS
-IV
(O
V s
witc
hed
OF
F)
for
a tim
e lo
nger
than
100
sec
onds
. (P
ress
ure
bloc
ked
in w
heel
->
over
heat
ing.
)
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
10 -
31
= S
afet
y M
onito
r - V
alve
Com
bi
Fun
ctio
n -
cond
ition
ex
ists
Saf
ety
Mon
itor
for V
alve
C
ombi
Fun
ctio
n (P
art 8
a)T
his
safe
ty m
onito
r ch
ecks
gen
eric
sys
tem
func
tions
(P
art 8
a/F
SR
_139
). M
onito
r de
tect
s fa
ilure
if:
- B
oth
diff-
valv
es a
nd a
ll A
BS
inle
t val
ves
are
pow
ered
-off
for
a tim
e T
1=20
00 m
s,
- A
nd th
en w
ithin
a ti
me
span
of T
2=10
0 m
s, F
A+T
CV
diff
val
ve,
RA
diff
val
ve a
nd F
A a
nd R
A A
BS
inle
t val
ve a
re p
ower
ed-o
n w
hile
AB
S T
CV
val
ve r
emai
ns p
ower
ed-o
ff,
- A
nd a
fter
that
, for
tim
e T
3=50
0 m
s, th
e sa
me
stat
e is
m
aint
aine
d.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
11 -
22
= S
afet
y M
onito
r - V
alve
Com
bi
Fun
ctio
n (C
ontin
uatio
n) -
re
serv
ed (
22)
Saf
ety
Mon
itor
for V
alve
C
ombi
Fun
ctio
n (P
art 8
b)T
his
safe
ty m
onito
r ch
ecks
gen
eric
sys
tem
func
tions
(P
art 8
b/F
SR
_139
). M
onito
r de
tect
s fa
ilure
if:
- B
oth
diff-
valv
es a
nd a
ll A
BS
inle
t val
ves
are
pow
ered
-off
for
a tim
e T
1=20
00 m
s,
- A
nd th
en w
ithin
a ti
me
span
of T
2=10
0 m
s, F
A+T
CV
diff
val
ve
and
FA A
BS
inle
t val
ve a
re p
ower
ed-o
n, w
hile
AB
S T
CV
val
ve
rem
ains
pow
ered
-off,
-
And
afte
r th
at, f
or ti
me
T3=
500
ms,
the
sam
e st
ate
is
mai
ntai
ned.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
12 -
22
= S
afet
y M
onito
r -
Ref
eren
ce
Spe
ed -
res
erve
d (2
2)
Saf
ety
Mon
itor
for W
heel
R
efer
ence
Spe
edT
his
safe
ty m
onito
r ch
ecks
the
corr
ect f
unct
ion
of th
e W
heel
R
efer
ence
Spe
ed.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
12 -
23
= S
afet
y M
onito
r -
Ref
eren
ce
Spe
ed -
res
erve
d (2
3)
Saf
ety
Mon
itor
for V
ehic
le
Ref
eren
ce S
peed
Thi
s sa
fety
mon
itor
chec
ks th
e co
rrec
t fun
ctio
n of
the
Whe
el
Ref
eren
ce S
peed
.•
Saf
ety
Mon
itor
has
dete
cted
a S
W-p
robl
em.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5231
12 -
24
= S
afet
y M
onito
r -
Ref
eren
ce
Spe
ed -
res
erve
d (2
4)
Saf
ety
Mon
itor
for
AB
S
Ref
eren
ce S
peed
Thi
s sa
fety
mon
itor
chec
ks th
e co
rrec
t fun
ctio
n of
the
Whe
el
Ref
eren
ce S
peed
.•
Saf
ety
Mon
itor
has
dete
cted
a S
W-p
robl
em.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013176a
5 SPN FMI Fault Codes
61WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.46
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5231
14 -
22
= S
afet
y M
onito
r -
Ste
erin
g A
ngle
S
enso
r -
rese
rved
(22
)
Saf
ety
Mon
itor
for
Ste
erin
g A
ngle
Thi
s sa
fety
mon
itor
chec
ks th
e co
rrec
t fun
ctio
n of
the
Ste
erin
g A
ngle
Sen
sor.
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
15 -
22
= S
afet
y M
onito
r - Y
aw R
ate
- re
serv
ed (
22)
Saf
ety
Mon
itor
for Y
aw R
ate
Thi
s sa
fety
mon
itor
chec
ks th
e co
rrec
t fun
ctio
n of
the
Yaw
Rat
e.•
Saf
ety
Mon
itor
has
dete
cted
a S
W-p
robl
em.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5231
16 -
22
= S
afet
y M
onito
r -
Late
ral
Acc
eler
atio
n -
rese
rved
(2
2)
Saf
ety
Mon
itor
for
Late
ral
Acc
eler
atio
nT
his
safe
ty m
onito
r ch
ecks
the
corr
ect f
unct
ion
of th
e la
tera
l ac
cele
ratio
n.•
Saf
ety
Mon
itor
has
dete
cted
a S
W-p
robl
em.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5231
17 -
22
= S
afet
y M
onito
r - T
arge
t Yaw
Rat
e -
rese
rved
(22
)
Saf
ety
Mon
itor
for T
arge
t Ya
w R
ate
Thi
s sa
fety
mon
itor
chec
ks th
e co
rrec
t fun
ctio
n of
the
targ
et
yaw
rate
.•
Saf
ety
Mon
itor
has
dete
cted
a S
W-p
robl
em.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5231
18 -
22
= S
afet
y M
onito
r -
ES
C S
enso
r E
xter
nal -
res
erve
d (2
2)
Saf
ety
Mon
itor
for
ES
C
Sen
sor
Ext
erna
l (La
tera
l A
ccel
erat
ion)
Thi
s sa
fety
mon
itor
chec
ks th
e co
rrec
t fun
ctio
n of
the
ES
C
Sen
sor
Ext
erna
l (La
tera
l Acc
eler
atio
n).
• S
afet
y M
onito
r ha
s de
tect
ed a
SW
-pro
blem
.•
Con
tact
WA
BC
O N
orth
Am
eric
a C
usto
mer
Car
e at
855
-228
-320
3.
5231
18 -
23
= S
afet
y M
onito
r -
ES
C S
enso
r E
xter
nal -
res
erve
d (2
3)
Saf
ety
Mon
itor
for
ES
C
Sen
sor
Ext
erna
l (Ya
w R
ate)
Thi
s sa
fety
mon
itor
chec
ks th
e co
rrec
t fun
ctio
n of
the
ES
C
Sen
sor
Ext
erna
l (Ya
w R
ate)
.•
Saf
ety
Mon
itor
has
dete
cted
a S
W-p
robl
em.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5231
19 -
22
= S
afet
y M
onito
r -
Req
uest
B
lend
er -
res
erve
d (2
2)
Saf
ety
Mon
itor
for
Req
uest
B
lend
er F
unct
ion
Thi
s sa
fety
mon
itor
chec
ks th
e co
rrec
t fun
ctio
n of
the
requ
est
blen
der.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
0 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 1)
- da
ta
valid
, but
abo
ve n
orm
al
oper
atin
g ra
nge
(mos
t se
vere
leve
l)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘A
ccel
erat
or P
edal
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
1 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 1)
- da
ta
valid
, but
bel
ow n
orm
al
oper
atin
g ra
nge
(mos
t se
vere
leve
l)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘A
ntib
lock
ing
Sys
tem
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
2 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 1)
- da
ta
erra
tic, i
nter
mitt
ent o
r in
corr
ect
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Aut
omat
ic
Trac
tion
Con
trol
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
3 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 1)
- vo
ltage
ab
ove
norm
al o
r sh
orte
d hi
gh
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Axl
e C
onfig
urat
ion’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
4 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 1)
- vo
ltage
be
low
nor
mal
or
shor
ted
low
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Bra
ke
Con
trol
Ass
ignm
ent A
BS
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013177a
5 SPN FMI Fault Codes
62 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.47
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5242
70 -
5 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 1)
- cu
rren
t be
low
nor
mal
or
open
ci
rcui
t
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Bra
ke
Ped
al’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
6 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 1)
- cu
rren
t ab
ove
norm
al o
r gr
ound
ed c
ircui
t
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Der
ived
P
aram
eter
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
7 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 1)
- m
echa
nica
l sys
tem
not
re
spon
ding
cor
rect
ly o
r ou
t of a
djus
tmen
t
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘D
iffer
entia
l Slip
Con
trol
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
8 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 1)
- ab
norm
al
freq
uenc
y, p
ulse
wid
th
or p
erio
d
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Dra
g To
rque
Con
trol
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
9 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 1)
- ab
norm
al
upda
te ra
te
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Driv
e Tr
ain’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
10
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
abno
rmal
ra
te o
f cha
nge
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Ele
ctro
nic
Bra
ke L
imita
tion’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
11
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
failu
re
mod
e no
t ide
ntifi
able
/roo
t ca
use
not k
now
n
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Int
erfa
ce
Con
figur
atio
n’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
12
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
bad
inte
llige
nt d
evic
e or
co
mpo
nent
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Mas
s C
alcu
latio
n’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
13
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
out o
f ca
libra
tion
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Sys
tem
C
onfig
urat
ion’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
14
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
spec
ial
inst
ruct
ions
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Tire
Siz
e C
ompe
nsat
ion’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
15
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
data
va
lid, b
ut a
bove
nor
mal
op
erat
ing
rang
e (le
ast
seve
re le
vel)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Tire
Siz
e C
ompe
nsat
ion/
Sto
rage
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013178a
5 SPN FMI Fault Codes
63WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.48
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5242
70 -
16
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
data
va
lid, b
ut a
bove
nor
mal
op
erat
ing
rang
e (m
oder
atel
y se
vere
leve
l)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Tot
al
Vehi
cle
Con
figur
atio
n’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
17
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
data
va
lid, b
ut b
elow
nor
mal
op
erat
ing
rang
e (le
ast
seve
re le
vel)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Yaw
Rat
e C
ontr
ol S
tora
ge’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
18
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
data
va
lid, b
ut b
elow
nor
mal
op
erat
ing
rang
e (m
oder
atel
y se
vere
leve
l)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘D
ecel
erat
ion
Con
trol
AB
S’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
19
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
rece
ived
ne
twor
k da
ta in
err
or
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Hill
Sta
rt
Aid
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
20
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
data
dr
ifted
hig
h
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Pla
tform
’A
faul
ty c
heck
sum
was
det
ecte
d in
the
rele
vant
par
amet
er
grou
p in
the
non-
vola
tile
mem
ory
(EE
PR
OM
). R
emar
k: T
his
chec
ksum
is in
tern
ally
cal
cula
ted
by th
e so
ftwar
e af
ter
the
para
met
ers
wer
e tra
nsm
itted
to th
e E
EP
RO
M.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
21
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
data
dr
ifted
low
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘RS
C’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
22
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
rese
rved
(2
2)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Yaw
C
ontr
ol’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
23
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
rese
rved
(2
3)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Ste
erin
g A
ngle
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
24
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
rese
rved
(2
4)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Ste
erin
g W
heel
Ang
le S
tora
ge’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
25
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
rese
rved
(2
5)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Veh
icle
A
ccel
erat
ion
Sto
rage
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
26
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
rese
rved
(2
6)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Hill
Sta
rt
Aid
Sto
rage
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013179a
5 SPN FMI Fault Codes
64 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.49
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5242
70 -
27
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
rese
rved
(2
7)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Tra
iler
Det
ectio
n’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
28
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
rese
rved
(2
8)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Ste
erin
g A
ngle
Sto
rage
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
29
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
rese
rved
(2
9)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Ext
erna
l B
rake
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
30
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
rese
rved
(3
0)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Ext
erna
l B
rake
Sto
rage
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
70 -
31
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 1
) -
cond
ition
ex
ists
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Sw
itch’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
0 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 2)
- da
ta
valid
, but
abo
ve n
orm
al
oper
atin
g ra
nge
(mos
t se
vere
leve
l)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Bra
ke
Pre
ssur
e’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
1 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 2)
- da
ta
valid
, but
bel
ow n
orm
al
oper
atin
g ra
nge
(mos
t se
vere
leve
l)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Cen
ter
of
Gra
vity
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
2 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 2)
- da
ta
erra
tic, i
nter
mitt
ent o
r in
corr
ect
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Fun
ctio
n S
yste
m C
onfig
urat
ion’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
3 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 2)
- vo
ltage
ab
ove
norm
al o
r sh
orte
d hi
gh
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Har
dwar
e C
onfig
urat
ion’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
4 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 2)
- vo
ltage
be
low
nor
mal
or
shor
ted
low
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘S
peed
omet
er A
djus
tmen
t’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
5 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 2)
- cu
rren
t be
low
nor
mal
or
open
ci
rcui
t
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘S
peed
omet
er A
djus
tmen
t S
tora
ge’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013180a
5 SPN FMI Fault Codes
65WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.50
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5242
71 -
6 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 2)
- cu
rren
t ab
ove
norm
al o
r gr
ound
ed c
ircui
t
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Sup
ply
Volta
ge’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
7 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 2)
- m
echa
nica
l sys
tem
not
re
spon
ding
cor
rect
ly o
r ou
t of a
djus
tmen
t
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Veh
icle
C
AN
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
8 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 2)
- ab
norm
al
freq
uenc
y, p
ulse
wid
th
or p
erio
d
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Aux
iliar
y P
arkb
rake
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
9 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 2)
- ab
norm
al
upda
te ra
te
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘E
mer
genc
y S
top
Sig
nal’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
10
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
abno
rmal
ra
te o
f cha
nge
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Glo
bal
Varia
nt C
odin
g’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
11
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
failu
re
mod
e no
t ide
ntifi
able
/roo
t ca
use
not k
now
n
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘MB
T
Spe
cific
Par
amet
ers’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
12
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
bad
inte
llige
nt d
evic
e or
co
mpo
nent
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Pla
tform
S
tora
ge’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
13
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
out o
f ca
libra
tion
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Mod
el
Dia
gnos
tics
Sto
rage
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
14
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
spec
ial
inst
ruct
ions
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Aux
iliar
y A
xles
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
15
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
data
va
lid, b
ut a
bove
nor
mal
op
erat
ing
rang
e (le
ast
seve
re le
vel)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘C
ombi
natio
n S
tabi
lity
Con
trol
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013181a
5 SPN FMI Fault Codes
66 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.51
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5242
71 -
16
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
data
va
lid, b
ut a
bove
nor
mal
op
erat
ing
rang
e (m
oder
atel
y se
vere
leve
l)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Eap
u’A
faul
ty c
heck
sum
was
det
ecte
d in
the
rele
vant
par
amet
er
grou
p in
the
non-
vola
tile
mem
ory
(EE
PR
OM
). R
emar
k: T
his
chec
ksum
is in
tern
ally
cal
cula
ted
by th
e so
ftwar
e af
ter
the
para
met
ers
wer
e tra
nsm
itted
to th
e E
EP
RO
M.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
17
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
data
va
lid, b
ut b
elow
nor
mal
op
erat
ing
rang
e (le
ast
seve
re le
vel)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Eap
u S
tora
ge’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
18
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
data
va
lid, b
ut b
elow
nor
mal
op
erat
ing
rang
e (m
oder
atel
y se
vere
leve
l)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Esc
S
enso
r’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
19
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
rece
ived
ne
twor
k da
ta in
err
or
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Esc
S
enso
r S
tora
ge’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
20
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
data
dr
ifted
hig
h
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Gvc
Tim
e S
tam
p S
tora
ge’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
21
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
data
dr
ifted
low
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Ope
n Lo
op P
ress
ure
Con
trol
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
22
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
rese
rved
(2
2)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Saf
ety
Mon
itors
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
23
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
rese
rved
(2
3)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Yaw
Rat
e’A
faul
ty c
heck
sum
was
det
ecte
d in
the
rele
vant
par
amet
er
grou
p in
the
non-
vola
tile
mem
ory
(EE
PR
OM
). R
emar
k: T
his
chec
ksum
is in
tern
ally
cal
cula
ted
by th
e so
ftwar
e af
ter
the
para
met
ers
wer
e tra
nsm
itted
to th
e E
EP
RO
M.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
24
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
rese
rved
(2
4)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘RS
C
Sto
rage
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
25
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
rese
rved
(2
5)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Loa
d C
hang
e D
etec
tion
Sto
rage
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
26
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
rese
rved
(2
6)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Bra
ke
Cyl
inde
r P
ress
ure
Est
imat
or S
tora
ge’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013182a
5 SPN FMI Fault Codes
67WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.52D
TC S
PN
FM
IFa
ilure
Det
ectio
n N
ame
Failu
re D
etec
tion
Des
crip
tion
Rep
air
5242
71 -
27
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
rese
rved
(2
7)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Ste
erin
g W
heel
Ang
le’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
28
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
rese
rved
(2
8)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Axl
e M
odul
ator
Inte
rface
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
29
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
rese
rved
(2
9)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Bra
ke
Con
trol
Ass
ignm
ent’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
30
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
rese
rved
(3
0)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Bra
ke
Con
trol
Ass
ignm
ent E
BS
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
71 -
31
= E
EP
RO
M
- N
VM
em C
heck
sum
fa
ilure
(P
art 2
) -
cond
ition
ex
ists
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Clo
sed
Loop
Pre
ssur
e C
ontr
ol’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
72 -
0 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 3)
- da
ta
valid
, but
abo
ve n
orm
al
oper
atin
g ra
nge
(mos
t se
vere
leve
l)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘EC
U
Sup
ply
Volta
ge’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
72 -
1 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 3)
- da
ta
valid
, but
bel
ow n
orm
al
oper
atin
g ra
nge
(mos
t se
vere
leve
l)
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Har
dwar
e C
onfig
urat
ion
Axl
e M
odul
ator
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
72 -
2 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 3)
- da
ta
erra
tic, i
nter
mitt
ent o
r in
corr
ect
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘P
aram
eter
Pla
usib
ility
S
tora
ge’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
72 -
3 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 3)
- vo
ltage
ab
ove
norm
al o
r sh
orte
d hi
gh
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Pre
ssur
e In
crea
se A
ssis
t’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
72 -
4 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 3)
- vo
ltage
be
low
nor
mal
or
shor
ted
low
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Sys
tem
B
us C
onfig
urat
ion’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
72 -
5 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 3)
- cu
rren
t be
low
nor
mal
or
open
ci
rcui
t
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Bra
ke
Ped
al S
tora
ge’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013183a
5 SPN FMI Fault Codes
68 WABCO Maintenance Manual MM-1719 (Revised 08-18)
Figure 5.53
DTC
SP
N F
MI
Failu
re D
etec
tion
Nam
eFa
ilure
Det
ectio
n D
escr
iptio
nR
epai
r
5242
72 -
6 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 3)
- cu
rren
t ab
ove
norm
al o
r gr
ound
ed c
ircui
t
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘Mod
ulat
or
Iden
tifica
tion’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
5242
72 -
7 =
EE
PR
OM
-
NV
Mem
Che
cksu
m
failu
re (
Par
t 3)
- m
echa
nica
l sys
tem
not
re
spon
ding
cor
rect
ly o
r ou
t of a
djus
tmen
t
Che
cksu
m E
rror
of
Par
amet
er g
roup
‘P
aram
eter
Pla
usib
ility
’
A fa
ulty
che
cksu
m w
as d
etec
ted
in th
e re
leva
nt p
aram
eter
gr
oup
in th
e no
n-vo
latil
e m
emor
y (E
EP
RO
M).
Rem
ark:
Thi
s ch
ecks
um is
inte
rnal
ly c
alcu
late
d by
the
softw
are
afte
r th
e pa
ram
eter
s w
ere
trans
mitt
ed to
the
EE
PR
OM
.
• C
onta
ct W
AB
CO
Nor
th A
mer
ica
Cus
tom
er C
are
at 8
55-2
28-3
203.
4013184a
© 2018 WABCO North America – All rights reserved – MM-1719 / 08.2018
connects trucks, trailers, cargo, drivers, business partners and fl eet operators through advanced fl eet management systems and mobile solutions. WABCO re-ported sales of $2.8 billion in 2016. Headquartered in Brussels, Belgium, WABCO has 13,000 em-ployees in 40 countries. For more information, visit:
www.wabco-na.com
(NYSE: WBC) is a leading global supplier of technol-ogies and services that improve the safety, effi ciency and con-nectivity of commercial vehicles. Founded nearly 150 years ago, WABCO continues to pioneer breakthrough innovations for ad-vanced driver assistance, brak-ing, stability control, suspension, transmission automation and aerodynamics. Partnering with the transportation industry as it maps a route toward autonomous driving, WABCO also uniquely