17
System Diagnostic Manual EURO III DIESEL

III DIESEL System Diagnostic ManualPreface This document is designed to be used for safe and correct diagnosis of the electrically controlled DAEWOO Diesel DL08 and DV11 engine. It

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Page 1: III DIESEL System Diagnostic ManualPreface This document is designed to be used for safe and correct diagnosis of the electrically controlled DAEWOO Diesel DL08 and DV11 engine. It

System Diagnostic ManualEURO III DIESEL

Page 2: III DIESEL System Diagnostic ManualPreface This document is designed to be used for safe and correct diagnosis of the electrically controlled DAEWOO Diesel DL08 and DV11 engine. It

Preface

This document is designed to be used for safe and correct diagnosis of the electrically

controlled DAEWOO Diesel DL08 and DV11 engine.

It is recommended that all information in this manual as well as the engine service man-

ual and electrical wiring diagrams be fully understood before diagnosis with the diagno-

sis device (SCAN200) for accurate and effective service and shorter service hours.

If there is any incorrect information or type in this manual, feel free to contact Daewoo

Bus Corporation.

The specifications contained in this manual are subject to change without notice.

We hope this manual will help your service.

November 2009

Daewoo Bus Corporation

A/S team

Page 3: III DIESEL System Diagnostic ManualPreface This document is designed to be used for safe and correct diagnosis of the electrically controlled DAEWOO Diesel DL08 and DV11 engine. It

Table of contents

1. Diagnostic device for system ..............................................7

2. How to check engine DTCs ...............................................9

3. Check sensor data .......................................................11

3-1. Select by group ....................................................11

3-2. Select by function ..................................................15

4. Special mode ............................................................24

4-1. Oscilloscope ........................................................24

4-2. Measuring frequency ................................................32

4-3. Measuring duty ratio ................................................33

5. Troubleshooting by blink codes ...........................................34

1.1 : Faulty coolant temperature sensor .................................34

1.2 : Faulty fuel temperature sensor .................................... 36

1.3 : Faulty charged air temperature sensor .............................38

1.4 : Faulty boost pressure sensor .......................................40

1.6 : Faulty barometric pressure sensor .................................42

1.7 : Faulty oil temperature sensor ......................................44

1.8 : Faulty oil pressure sensor ......................................... 46

2.1 : Faulty battery voltage..............................................48

2.2 : Faulty fuel pressure sensor ........................................50

2.3 : Faulty accelerator pedal ...........................................52

2.4 : Faulty accelerator pedal .......................................... 56

2.5 : Faulty vehicle speed sensor or tachometer .........................58

2.7 : Faulty clutch pedal switch ........................................ 60

2.8 : Faulty foot brake switch .......................................... 62

2.9 : Faulty cruise control switch ....................................... 64

3.2 : Excessive fluctuation of fuel pressure in rail ....................... 66

3.6 : Faulty input signal during ASR operation ...........................70

3.7 : Faulty CAN communication for ASR/automatic transmission, etc. ...............72

3.8 : Excessive engine RPM .............................................74

Page 4: III DIESEL System Diagnostic ManualPreface This document is designed to be used for safe and correct diagnosis of the electrically controlled DAEWOO Diesel DL08 and DV11 engine. It

3.9 : Faulty main relay in ECU ......................................... 76

4.1 : Fault due to abnormal engine shut-off .............................78

4.2 : Faulty crank sensor..........................................80

4.3 : Faulty cam sensor ...........................................82

4.4 : Faulty engine RPM sensor ...................................84

4.5 : Faulty EEPROM in ECU ......................................86

4.6 : Recovery function when activation time in ECU is recognized

and is faulty ..............................................88

4.7 : Pressure limit valve open due to excessive rail pressure ......90

4.8 : Faulty power supply source ..................................92

4.9 : Faulty initial voltage from ECU to injector (1, 2, 3) ..........94

5.1 : Faulty initial voltage from ECU to injector (4, 5, 6) .........96

5.8 ~ 6.4 : Fault related to injector harness connection(#1~#6) .......98

6.6 : Faulty air heater lamp ......................................100

7.1 : Faulty self-diagnosis lamp ...................................102

7.2 : Faulty air heater relay ......................................104

7.3 : Faulty engine brake #2 output ............................. 106

7.5 : Faulty engine brake #1 output ..............................108

8.3 : Faulty high-pressure pump control ..........................110

8.6 : Faulty engine RPM meter in vehicle.........................112

9.1 : Faulty watchdog function in ECU during engine starting .....114

9.2 ~ 9.8 : Poor cylinder ignition ............................... 116

9.9 : Checking recognition of activation time in ECU ..............118

10.1 : Faulty engine RPM (auxiliary) ..............................120

10.2 : Fault related to accelerator pedal (with foot brake)........122

10.4 : Excessive fluctuation of fuel pressure in rail (by voltage

fluctuation) .............................................124

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System Diagnostic Manual

1. Diagnositc device for system There are two ways to check DTCs of the DL08 and DV11 engines for the purpose of diagnosis: using the diagnosis device (SCAN-200) and checking the blinking number of the engine CHECK lamp.

This manual mainly describes diagnosis procedures with the device (SCAN-200) for faster and accurate diagnosis.

1

3

4

5

8

7

62

1. ENTER key (to move next step) 5. HELP key (to help screen)

2. Arrow keys (changes selected value or mode) 6. ESC key (to previous step)

3. PgUp and PgDn keys (to upper or lower page) 7. ENTER key (to move next step)

4. Select key (scrolls up and down to select) 8. PWR(power)

[ Figure. SCAN-200 keypad ]

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System Diagnostic Manual

■ Connecting diagnosis device (SCAN-200)

1. Connect the diagnostic adapter to the vehicle diagnosis adapter.

2. Push the vehicle main switch(Berrery main S/W)to the “ON” position.

3. Push the vehicle ignition switch to the “ON” position.

4. Push the diagnosis device (SCAN-200) “PWR(power)” switch “ON”.

Diagnostic adapter

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System Diagnostic Manual

Press [ENTER] key after selecting [ECU Information]

PressEnterKey

PressEnterKey

PressEnter Key

Press

PressEnter Key

* It is necessary to check engine ECU version before selection.

1. Select [ECU Information]. 2. Check the ECU version (4.1:STEP3).

2. How to check engine DTCs■ Push diagnosis device (SCAN-200) ‘PWR’ S/W on

MAIN MENUVehicle/engine diagnosis

1] Vehicle/engine diagnosis2] General OBD-II3] Snap-shot analysis4] Tool related mode5] Special mode

Select the above item.

SELECT CHECK ITEMDV11 STEP3 engine ECU

1] Check DTC2] Check sensor data3] Erase DTC4] Compression amount test5] Runup test6] Remote control7] ECU information

3 FAULTS FOUNDB=BLINK CODE, C=CURRENT FAULT, H=HISTORICAL FAULT

DV11 STEP3 engine ECU

CB 4.2 Engine RPM sensor (Crankshaft side)HB 7.1 diagnostic lampCB 3.2 Abnormal rail pressure

SELECT VEHICLE TyPEDV11 STEP3

1] DL08 “STEP3”2] DV11 “STEP3”3] DL084] DV115] CNG (GE12TI & GE08TI)6] DE12TIS

ECU INFORMATIONDV11 STEP3 engine ECU

VIN : DAEWOO BUSDATA SET : EUJBE_A02LAST TEST USER : TesterS/W VERSION : 4.1ENGINE TyPE : P41741.A2L and P41741.HEXProg .Date :TEST DATE :Frame Serial Number : Cus. str2Vehicle Type Code : BH120F

SySTEM SELECT

1] Engine system diagnosis2] Vehicle system diagnosis (ABS/ASR)3] Vehicle system diagnosis (Keyless entry)

Select the above item.

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System Diagnostic Manual

Press [HELP]

key

InspectionUsage example:

4.2 Abnormal engine RPM sensor

Check DTC [HELP] key Check sensor data Check item

SAE code P0335

[Possible cause]

- Abnormal signal

Faulty crank sensor ---- 8■ The lamp turns on

when the engine RPM is over 600 in case of open or short-circuit of signal wiring harness.

3 FAULTS FOUNDB=BLINK CODE, C=CURRENT FAULT, H=HISTORICAL FAULT

DV11 STEP3 engine ECU

CB 4.2 Engine RPM sensor (Crankshaft side)HB 7.1 diagnostic lampCB 3.2 Abnormal rail pressure

CB 4.2 ENGINE RPM SENSOR(CRANKSHAFT SIDE)B=BLINK CODE, C=CURRENT FAULT, H=HISTORICAL FAULT

DV11 STEP3 engine ECU[SAE Code] : P0335[Possible cause]- Abnormal Signal7 6 5 4 3 2 1 0○ ○ ○ ○ ● ○ ○ ○

[Fault condition]- Past fault[Warning lamp status]- ON

Help for DTC : Press [HELP] key

7

6

5

4

3

2

1

0

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System Diagnostic Manual

3. Check sensor data3-1. Select by group■ Data group (02-1)

Check sensor data

01. Accelerator pedal depression ······0.0 [%]02. Faulty accelerator pedal sensor ··········· 003. Low idle switch ································[ON]04. Accelerator pedal sensor voltage 410 [mV]05. Barometric pressure ··············1000 [hPa]06. Faulty barometric pressure sensor ······· 007. Ambient temperature ················ 40.0 [°C]08. Faulty ambient temperature sensor ······ 109. Battery voltage ····························24.1 [V]10. Faulty battery voltage ··························· 0

Fix Un Main

▲,▼

Check sensor data

11. Engine brake #1 operation ············ [OFF]12. Engine brake #2 operation ············ [OFF]13. ECU condenser #1 voltage ·········81.0 [V]14. Faulty condenser #1 voltage status ······ 015. ECU condenser #2 voltage ·········81.1 [V]16. Faulty condenser #2 voltage status ······ 017. Boost pressure ························997 [hPa]18. Faulty boost pressure sensor ··············· 019. Charged air amount ············· 2357 mg/st]20. Charged air temperature ·········· 28.5 [°C]

Fix Un Main

▲,▼

Check sensor data

21. Faulty charged air temperature sensor ··· 022. Faulty cam sensor ································ 023. Cruise SET/UP S/W ······················ [OFF]24. Cruise SET/DOWN S/W ················ [OFF]25. Cruise RESUME S/W ···················· [OFF]26. Cruise OFF S/W ······························[ON]27. Cruise speed control ················ [ACTIVE]28. Clutch S/W ····························[INACTIVE]29. Faulty clutch S/W ·································· 030. Faulty crank sensor ······························ 0

Fix Un Main

▲,▼

Select sensor data LIDDV11 STEP3 engine ECU

01] Data group [02-1]02] Data group [02-2]03] Data group [03]04] Data group [14]

Press[Enter]

key

Press[Enter]

key

Press[PgDn]

key

PressEnter Key

Select check itemDV11 STEP3 engine ECU1] Check DTC 2] Check sensor data3] Erase DTC4] Compression amount test5] Runup test6] Remote control7] ECU information

Select sensor data typeDV11 STEP3 engine ECU1] Select by group2] Select by function

Press [PgDn] key

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System Diagnostic Manual

Check sensor data

31. Coolant temperature ················· 25.0 [°C]32. Faulty coolant temperature sensor ······· 033. Engine brake #1 S/W ············[INACTIVE]34. Engine brake #2 S/W ············[INACTIVE]35. Driving mode ········································ 036. Normal engine RPM ····························· 137. Faulty engine RPM ······························· 038. Engine RPM ································0 [rpm]39. Fuel supply pressure ················0.3[MPa]40. Faulty fuel supply pressure sensor ······· 0

Fix Un Main

▲,▼

Check sensor data

71. Self-diagnosis fault blink code 1 ··········· 072. Self-diagnosis fault blink code2 ············ 073. No. of trouble code ······························· 074. Self-diagnosis S/W ························ [OFF] ······································································01. Accelerator pedal depression ······0.0 [%]02. Faulty accelerator pedal sensor ··········· 003. Low idle switch ································[ON]04. Accelerator pedal sensor voltage ·410 [mV]05. Barometric pressure ··············1000 [hPa]

Fix Un Main

▲,▼

Check sensor data

61. External fuel supply amount ·· 0.0 [mg/st]62. Fuel supply amount ··············· 0.0 [mg/st]63. Limited fuel supply amount ·· 87.2 [mg/st]64. PTO RPM control fuel amount ·· 0.0 [mg/st]65. Faulty injector 1 (DV11:1) ····················· 066. Faulty injector 2 (DV11:4) ····················· 067. Faulty injector 3 (DV11:2) ····················· 068. Faulty injector 4 (DV11:5) ····················· 069. Faulty injector 5 (DV11:3) ····················· 070. Faulty injector 6 (DV11:6) ····················· 0

Fix Un Main

▲,▼

Check sensor data

41. Faulty cooling fan speed sensor ··········· 042. Cooling fan speed ··················2000 [rpm]43. Fuel temperature ······················ 25.5 [°C]44. Faulty fuel temperature sensor ············ 045. Ignition switch ··································[ON]46. Engine oil pressure ··················845 [hPa]47. Faulty engine oil pressure sensor ········· 048. Engine oil temperature ············· 27.1 [°C]49. Faulty engine oil temperature sensor ··· 050. Parking brake switch ··············· [ACTIVE]

Fix Un Main

▲,▼

Check sensor data

51. Retarder S/W ························[INACTIVE]52. Foot brake S/W #1 ················[INACTIVE]53. Foot brake S/W #2 ················[INACTIVE]54. Foot brake S/W #3 ················[INACTIVE]55. Faulty foot brake S/W ··························· 056. Engine stop S/W ···························· [OFF]57. Gear ratio ····························0.500 [min/s]58. Vehicle speed ························· 0.0 [km/h]59. Faulty vehicle speed sensor ················· 060. Faulty fuel high-pressure generator ······ 0

Fix Un Main

▲,▼

Press[PgDn]

key

Press[PgDn]

key

Press [PgDn] key

Press [PgDn] key

Press [PgDn] key

Page 11: III DIESEL System Diagnostic ManualPreface This document is designed to be used for safe and correct diagnosis of the electrically controlled DAEWOO Diesel DL08 and DV11 engine. It

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System Diagnostic Manual

Check sensor data

21. Driving distance after starting ······· 0 [km]22. Engine running time after starting ··· 0.0 [h]23. PTO operating time after starting ··· 0.0 [h]24. fuel amount for PTO operation after starting 0 [L]25. Fuel consumption after starting (km/L) 0.00 [km/L]26. ECU operating time after starting ···· 0.1 [h]27. Fuel amount for idling after starting ·· 0[L]28. Instant fuel consumption (km/L) 0.00 [km/L]29. Instant fuel consumption (L/km) 0.00 [L/km] ······································································

Fix Un Main

▲,▼

Check sensor data

01. Self-diagnosis lamp ······················· [OFF]02. Engine RPM requested from ASR ··0 [rpm]03. ATM ECU engine RPM ················0 [rpm]04. Total driving distance ···················· 0 [km]05. Heater relay operation ··················· [OFF]06. Heater lamp operation ··········[INACTIVE]07.Faulty main relay in ECU ······················· 008. Faulty air heater lamp ··························· 009. Faulty self-diagnosis lamp ···················· 010. Faulty air heater relay ··························· 0

Fix Un Main

▲,▼

Check sensor data

11. Faulty engine brake #2 output ·············· 112. Faulty engine brake #1 output ·············· 013. Faulty RPM tachometer ························ 014. Faulty cruise operation lamp ················ 115. Faulty high-pressure pump pulse ········· 016. Faulty rail pressure regulating valve ····· 017. Starting fuel amount ·············· 0.0 [mg/st]18. Max. engine RPM after starting ····0[rpm]19. Idling time after starting ················ 0.0 [h]20. Used fuel amount after starting ······· 0 [L]

Fix Un Main

▲,▼

Press[Enter]

key

Press[PgDn]

key

Press [PgDn] key

■ Data group (02-2)

Select sensor data LIDDV11 STEP3 engine ECU01] Data group [02-1]02] Data group [02-2]03] Data group [03]04] Data group [14]

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System Diagnostic Manual

Check sensor data

01. #1 Cyl Dynamic compensation fuel amount ·······0.0[mg/st]

02. #2 Cyl Dynamic compensation fuel amount ·······0.0[mg/st]

03. #3 Cyl Dynamic compensation fuel amount ·······0.0[mg/st]

04. #4 Cyl Dynamic compensation fuel amount ·······0.0[mg/st]

05. #5 Cyl Dynamic compensation fuel amount ·······0.0[mg/st]

06. #6 Cyl Dynamic compensation fuel amount ·······0.0[mg/st]

07. A class static compensation fuel amount ···0.0[mg/st]08. B class static compensation fuel amount ···0.0[mg/st]09. C class static compensation fuel amount ···0.0[mg/st]10. D class static compensation fuel amount ···0.0[mg/st]

Fix Un Main

▲,▼

Check sensor data

11. E class static compensation fuel amount ···0.0[mg/st]

12. F class static compensation fuel amount ····0.0[mg/st]13. G class static compensation fuel amount ······0.0[mg/st]14. H class static compensation fuel amount ···0.0[mg/st] ······································································01. #1 Cyl Dynamic compensation fuel amount ·······0.0[mg/st]

02. #2 Cyl Dynamic compensation fuel amount ·······0.0[mg/st]

03. #3 Cyl Dynamic compensation fuel amount ·······0.0[mg/st]

04. #4 Cyl Dynamic compensation fuel amount ·······0.0[mg/st]

05. #5 Cyl Dynamic compensation fuel amount ·······0.0[mg/st]

Fix Un Main

▲,▼

Press[Enter]

key

Press[Enter]

key

Press [PgDn] key

■ Data group (03)

■ Data group (04)

Select sensor data LIDDV11 STEP3 engine ECU01] Data group [02-1]02] Data group [02-2]03] Data group [03]04] Data group [14]

Select sensor data LIDDV11 STEP3 engine ECU01] Data group [02-1]02] Data group [02-2]03] Data group [03]04] Data group [04]

Check sensor data

01. ECU operating time ······················· 2.1[h]02. Engine operating time ··················· 0.0 [h]03. No. of IGN S/W On/Off time ················· 804. Driving distance ···························· 0 [km]43. Total fuel consumption ················· 0.0 [L]06. Total fuel consumption for idling ··· 0.0 [L]07. Total idling time ···························· 0.0 [h]08. Fuel consumption ················· 0.00 [km/L]09. Total PTO time ····························· 0.0 [h]10. Total driving time ·························· 0.0 [h]

Fix Un Main

▲,▼

Page 13: III DIESEL System Diagnostic ManualPreface This document is designed to be used for safe and correct diagnosis of the electrically controlled DAEWOO Diesel DL08 and DV11 engine. It

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System Diagnostic Manual

Check sensor data

01. Accelerator pedal depression ······0.0 [%]02. Battery voltage ····························24.1 [V]03. Boost pressure ························997 [hPa]04. Charged air temperature ·········· 28.6 [°C]05. Faulty cam sensor ································ 006. Faulty crank sensor ······························ 007. Coolant temperature ················· 25.0 [°C]08. Normal engine RPM ····························· 109. Faulty engine RPM ······························· 010. Engine RPM ································0 [rpm]

Fix Un Main

▲,▼

Press [Enter] key

Press[Enter]

key

3-2. Select by function (01) Engine start data

Select sensor data typeDV11 STEP3 engine ECU1] Select by group2] Select by function

Select sensor data LIDDV11 STEP3 engine ECU[01] Engine start data[02] Injector data[03] Voltage data[04] Fuel pressure data[05] Engine brake data[06] CAN communication data[07] Fan clutch data[08] Data logging[09] Switch data[10] Sensor data

Check sensor data

11. Fuel supply pressure ················0.3[MPa]12. Fuel temperature ······················ 25.5 [°C]13. Ignition switch ··································[ON]14. Engine oil pressure ·················· 845 [hpa]15. Engine oil temperature ············· 27.2 [°C]16. Vehicle speed ························· 0.0 [km/h]17. Faulty fuel high-pressure generator ······ 018. External fuel supply amount ·· 0.0 [mg/st]19. Fuel supply amount ··············· 0.0 [mg/st]20. Heater relay operation ··················· [OFF]

Fix Un Main

▲,▼

Press[PgDn]

key

Check sensor data

21. Heater lamp operation ··········[INACTIVE]22. Faulty main relay in ECU ······················ 023. Faulty rail pressure regulating valve ····· 024. Starting fuel amount ·············· 0.0 [mg/st] ······································································01. Accelerator pedal depression ······0.0 [%]02. Battery voltage ····························24.1 [V]03. Boost pressure ························ 997 [hpa]04. Charged air temperature ·········· 28.4 [°C]05. Faulty cam sensor ································ 0

Fix Un Main

▲,▼

Press [PgDn] key

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System Diagnostic Manual

(02) Injector data

Select sensor data LIDDV11 STEP3 engine ECU

[01] Engine start data[02] Injector data[03] Voltage data[04] Fuel pressure data[05] Engine brake data[06] CAN communication data[07] Fan clutch data[08] Data logging[09] Switch data[10] Sensor data

Check sensor data

01. Accelerator pedal depression ······0.0 [%]02. Battery voltage ····························24.1 [V]03. ECU condenser #1 voltage ·········81.0 [V]04. Faulty condenser #1 voltage status ······ 005. ECU condenser #2 voltage ·········81.1 [V]06. Faulty condenser #2 voltage status ······ 007. Engine RPM ································0 [rpm]08. Fuel supply pressure ···············0.3 [MPa]09. Vehicle speed ························· 0.0 [km/h]10. Faulty fuel high-pressure generator ······ 0

Fix Un Main

▲,▼

Press[Enter]

key

Check sensor data

11. Fuel supply amount ··············· 0.0 [mg/st]12. Limited fuel supply amount ·· 87.2 [mg/st]13. Faulty injector 1 (DV11:1) ····················· 014. Faulty injector 2 (DV11:4) ····················· 015. Faulty injector 3 (DV11:2) ····················· 016. Faulty injector 4 (DV11:5) ····················· 017. Faulty injector 5 (DV11:3) ····················· 018. Faulty injector 6 (DV11:6) ····················· 019. #1 Cyl Dynamic compensation fuel amount ······0.0[mg/st]

20. #2 Cyl Dynamic compensation fuel amount ······0.0[mg/st]

Fix Un Main

▲,▼

Press [PgDn] key

Check sensor data

21. #3 Cyl Dynamic compensation fuel amount ·······0.0[mg/st]

22. #4 Cyl Dynamic compensation fuel amount ·······0.0[mg/st]

23. #5 Cyl Dynamic compensation fuel amount ·······0.0[mg/st]

24. #6 Cyl Dynamic compensation fuel amount ·······0.0[mg/st]

25. A class static compensation fuel amount ···0.0[mg/st]26. B class static compensation fuel amount ···0.0[mg/st]27. C class static compensation fuel amount ···0.0[mg/st]28. D class static compensation fuel amount ···0.0[mg/st]29. D class static compensation fuel amount ···0.0[mg/st]30. F class static compensation fuel amount ····0.0[mg/st]

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31. G class static compensation fuel amount ····0.0[mg/st]

32. H class static compensation fuel amount ···0.0[mg/st] ······································································01. Accelerator pedal depression ······0.0 [%]02. Battery voltage ····························24.1 [V]03. ECU condenser #1 voltage ·········81.0 [V]04. Faulty condenser #1 voltage status ······ 005. ECU condenser #2 voltage ·········81.1 [V]06. Faulty condenser #2 voltage status ······ 007. Engine RPM ································0 [rpm]

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Page 15: III DIESEL System Diagnostic ManualPreface This document is designed to be used for safe and correct diagnosis of the electrically controlled DAEWOO Diesel DL08 and DV11 engine. It

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System Diagnostic Manual

(03) Voltage data

Select sensor data LIDDV11 STEP3 engine ECU

[01] Engine start data[02] Injector data[03] Voltage data[04] Fuel pressure data[05] Engine brake data[06] CAN communication data[07] Fan clutch data[08] Data logging[09] Switch data[10] Sensor data

Check sensor data

01. Battery voltage ····························24.1 [V]02. Faulty battery voltage ··························· 003. ECU condenser #1 voltage ·········81.0 [V]04. Faulty condenser #1 voltage status ······ 005. ECU condenser #2 voltage ·········81.1 [V]06. Faulty condenser #2 voltage status ······ 007. Ignition switch ··································[ON]08. Faulty injector 1 (DV11:1) ····················· 009. Faulty injector 2 (DV11:4) ····················· 010. Faulty injector 3 (DV11:2) ····················· 0

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11. Faulty injector 4 (DV11:5) ····················· 012. Faulty injector 5 (DV11:3) ····················· 013. Faulty injector 6 (DV11:6) ····················· 014. Self-diagnosis fault blink code1 ············ 015. Self-diagnosis fault blink code2 ············ 016. Self-diagnosis S/W ························ [OFF]17. Self-diagnosis lamp ······················· [OFF]18. Main relay OFF in ECU ························ 019. Faulty air heater lamp ··························· 020. Faulty self-diagnosis lamp ···················· 0

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21. Faulty air heater relay ··························· 022. Faulty engine brake #2 output ·············· 123. Faulty engine brake #1 output ·············· 024. Faulty RPM tachometer ························ 025. Faulty high-pressure pump pulse ········· 0 ······································································01. Battery voltage ····························24.1 [V]02. Faulty battery voltage ··························· 003. ECU condenser #1 voltage ·········81.0 [V]04. Faulty condenser #1 voltage status ······ 0

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Page 16: III DIESEL System Diagnostic ManualPreface This document is designed to be used for safe and correct diagnosis of the electrically controlled DAEWOO Diesel DL08 and DV11 engine. It

18

System Diagnostic Manual

(04) Fuel pressure data

Select sensor data LIDDV11 STEP3 engine ECU

[01] Engine start data[02] Injector data[03] Voltage data[04] Fuel pressure data[05] Engine brake data[06] CAN communication data[07] Fan clutch data[08] Data logging[09] Switch data[10] Sensor data

Check sensor data

01. Accelerator pedal depression ······0.0 [%]02. Battery voltage ····························24.1 [V]03. Engine RPM ································0 [rpm]04. Fuel supply pressure ···············0.3 [MPa]05. Faulty fuel supply pressure sensor ······· 006. Ignition switch ··································[ON]07. Vehicle speed ························· 0.0 [km/h]08. Faulty fuel high-pressure generator ······ 009. Fuel supply amount ··············· 0.0 [mg/st]10. Faulty high-pressure pump pulse ········· 0

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11. Faulty rail pressure regulating valve ····· 0 ······································································01. Accelerator pedal depression ······0.0 [%]02. Battery voltage ····························24.1 [V]03. Engine RPM ································0 [rpm]04. Fuel supply pressure ···············0.3 [MPa]05. Faulty fuel supply pressure sensor ······· 006. Ignition switch ··································[ON]07. Vehicle speed ························· 0.0 [km/h]08. Faulty fuel high-pressure generator ······ 0

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Page 17: III DIESEL System Diagnostic ManualPreface This document is designed to be used for safe and correct diagnosis of the electrically controlled DAEWOO Diesel DL08 and DV11 engine. It

19

System Diagnostic Manual

(05) Engine brake data

Select sensor data LIDDV11 STEP3 engine ECU

[01] Engine start data[02] Injector data[03] Voltage data[04] Fuel pressure data[05] Engine brake data[06] CAN communication data[07] Fan clutch data[08] Data logging[09] Switch data[10] Sensor data

Check sensor data

01. Accelerator pedal depression ·······0.0[%]02. Faulty accelerator pedal sensor ··········· 003. Engine brake #1 operation ············ [OFF]04. Engine brake #2 operation ············ [OFF]05. Clutch S/W ····························[INACTIVE]06. Faulty clutch S/W ·································· 007. Engine brake #1 S/W ············[INACTIVE]08. Engine brake #2 S/W ··············· [ACTIVE]09. Engine RPM ································0 [rpm]10. Engine oil pressure ··················845 [hPa]

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11. Faulty engine oil pressure sensor ········· 012. Engine oil temperature ············· 27.5 [°C]13. Faulty engine oil temperature sensor ··· 014. Parking brake switch ··············· [ACTIVE]15. Foot brake S/W #1 ················[INACTIVE]16. Foot brake S/W #2 ················[INACTIVE]17. Foot brake S/W #3 ················[INACTIVE]18. Faulty foot brake S/W ··························· 019. Vehicle speed ························· 0.0 [km/h]20. Faulty vehicle speed sensor ················· 0

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21. Fuel supply amount ··············· 0.0 [mg/st] ······································································01. Accelerator pedal depression ······0.0 [%]02. Faulty accelerator pedal sensor ··········· 003. Engine brake #1 operation ············ [OFF]04. Engine brake #2 operation ············ [OFF]05. Clutch S/W ····························[INACTIVE]06. Faulty clutch S/W ·································· 007. Engine brake #1 S/W ············[INACTIVE]08. Engine brake #2 S/W ··············· [ACTIVE]

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