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MUT III
Communication
Troubleshooting Help
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1. Interface cartridge Port 7. USB port
2. LCD display screen 8. Trigger port
3. Indicator lamp (Red/ Green)
4. Control buttons
(Used for V.C.I. stand-alone functions)
5. Power switch
6. Harness port
V.C.I. Diagram and Nomenclature(Vehicle Communication Interface)
For 1998-1992 Model years
Issued to dealers without MUT I and/or MUT II
For 1998-1992 Model years
For 2005 -1999 Model years
For 2004-1992 Model years
12 volt Power plug for V.C.I.
(Cigarette lighter adapter)
NOT USE
Connection between PC and VCI
Optional harness
6 feet extension
Trigger Harness (MB991826)
Measuring Adapter (MB991825)
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Touch screen
ON
Power Switch
USB Port
AC power port
PC Diagram and Nomenclature(Laptop Computer)
Mouse Pad
Number lock button
When light is ON
Cap Lock is ON Number Lock is ON
Cap Lock Button
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Problem No.1: Will not except password.
Make sure caps lock is OFF. Look at indictor Green lamp should be OUT.
Cap lock is ON
Make sure Number lock is OFF. Look at indictor Green lamp should be OUT.
Number lock is ON
Touch the white box . Type in mut and then touch the green arrow. If you see any one of these messages make change as follow.
White Box
Green Arrow
Touch here first and the white box will open
Troubleshooting
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Problem No. 2 : Will not communicate with vehicle selected system.
Make sure ignition switch is turned ON.
Make sure selection fits vehicles application.
Transmission: Aisin/ Jatco ONLY.
Integration control: Auto Cruise system 2005 and Up FK/FM ONLY.
Troubleshooting
Data Link Connection
OBDII / Data link connection locations can be found in the service manual.2005 model vehicles have more then one location for the OBDII connection, use the one labeled in the service manual
(For Inspection) under Installed Location of Parts. Found in the index of each group.( example : 2005 FE/FG pg. 13E-56)
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Continued: Make sure that the power is getting through to the V.C.I.
Check the indicator lamp on the V.C.I.
Vehicle 12 volts is present
PC (USB) Power is present
And/or
V.C.I. Power switch is OFF
V.C.I. Power Switch
RED Light Only:
1. Check vehicle MUT III harness connections.
2. Check to see if power switch is ON for the V.C.I.
3. Check fuse in cigarette adapter power cord. ( Model year 2004 -1992 Vehicles Only)
4. Check for MIL lamps when the ignition switch is turned ON.
( If Aisin transmissions do not have any active codes the MIL lamp with turn ON for only 3 seconds)
5. Check for power at OBDII. ( 2005 – Up Model Trucks)
Model 2005 Fuses: B13 FE/FG, B17 FK/FM
V.C.I must have power coming in from both the USB cable and the vehicle MUT III Harness
Green Light Only:
1. Check for proper connection of the USB cable at PC and at V.C.I.
Cigarette Adapter
Troubleshooting
3 Amp glass fuse
MIL: Malfunction indicator Lamp
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[ P V ]
OR
[ P V ]
Continued :Check to make sure the data is being communicated through the V.C.I.
Check the status of the communication by looking at LCD display
Communication in progress.
[ P - V ]*NO communication is transferred.
DriveRecorder[1]
S------------------If DriveRecorder is displayed on the LCD then, power lost from the PC. The ON/OFF switch on the V.C.I. must be turned OFF and then turned back ON. Communication should resume.
* When communicating with the engine or transmission and then going right into the ABS system, you might have to turn OFF the ignition then turn it back ON to get the communication to transfer.
Troubleshooting
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Final Notes
Always use the service manual for the vehicle being tested.
OBDII / Data link connection location can be found in the service manual.
The service manual also show how to retrieve Inactive codes from each system, and how to delete codes.
* This information can be found on our web site in addition to the printed service manual.*
The MUT III instructional manual is located in the MUT III home page window.
MUT III Manual Location
If this does not help: Contact your: Product Support Manager
Coming Soon
Troubleshooting
