Autodata - Diagnostic Trouble Codes Fault locations and probable causes - 2004 edition

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1 438 I,,,,,,,,,,, kJAutodata MERCEDES-BENZ Mode' C250 I Engine management Trouble code identification Trouble / ash type code - 002 1 30 ~au~t location No fault found Fuel temperature sensor 003 12 I Engine coolant temperature (ECT) sensor I Wiring, ECT sensor, ECM 004 1 13 I Accelerator pedal position (APP) sensor Probable cause I Wiring, APP sensor, ECM 005 l 4 I Manifold absolute pressure (MAP) sensor I Wiring, MAP sensor, ECM 006 008 009 01 0 011 012 014 016 017 018 021 31 32 19 18 26 3 26 6 5 16 20 022 26 023 I Fuel quantity adjuster position sensor Fuel quantity adjuster ABS control module - vehicle speed signal Cruise control master switch - brake pedal position (BPP) switch Engine control module (ECM) Intake air temperature (IAT) sensor Engine control module (ECM) Engine speed (RPM) sensor Crankshaft position (CKP) sensor Brake pedal position (BPP) switch Malfunction indicator lamp (M1L)lexhaust gas recirculation (EGR) solenoid1AT - cruise control switch-over valves Engine control module (ECM) Supply voltagelovervoltage protection relay I I I 024 1 26 I Engine control module (ECM) I ECM 025 18 I Engine control module (ECM) I ECM 026 026 15 15 027 1 27 I Not assigned I - 028 1 029 12 031 29 Clutch pedal position (CPP) switch Starter motor relay - AT Engine control module (ECM) - supply voltage Supply voltagelholding voltage Fuel shut-off solenoid - Wiring, fuel temperature sensor, ECM Wiring, fuel qantity adjuster position sensor, ECM Wiring, fuel qantity adjuster, ECM Wiring, ABS fault, ABS control module, ECM Wiring, cruise control master switch, BPP switch, ECM ECM Wiring, IAT sensor, ECM ECM Wiring, RPM sensor, ECM Wiring, CKP sensor, ECM Wiring, BPP switch, ECM Wiring, hose leaklblockage, EGR valve, cruise control switch-over valves, ECM ECM Wiring, overvoltage protection relay, 1 ECM Wiring, CPP switch, ECM Wiring, starter motor relay, ECM Wiring, relay module, fuse, ignition switch, ECM Wiring, alternator, battery, overvoltage protection relay, ECM Wiring, fuel shut-off solenoid, ECM

Model: C250 D C250 TD Year: 1994-96 Engine code: 605.910, 605.960 System: Bosch EDC Trouble codes: Flash type MERCEDES-BENZ IkudI Engine management - - Engine bay - RH General information u Refer to the front of this manual for general test conditions, terminology, detailed descriptions of wiring faults and a general trouble shooter for electrical and mechanical faults. Trouble codes can be displayed by using an LED connected to the data link connector (DLC). The ECM fault memory can also be accessed and erased by using diagnostic equipment connected to the data link connector (DLC). NOTE: More detailed fault diagnosis information is obtained when using diagnostic equipment. Accessing Ensure ignition switched OFF. Bridge data link connector (DLC) terminals 1 and 4 with a switched lead (contacts normally open) 0. Connect LED between data link connector (DLC) terminals 3 and 4. Switch ignition ON. Operate switch for 2-4 seconds. LED should illuminate for a few seconds before flashing. Count LED flashes. Note flash code. Individual short flashes display flash code. 0 For example: Flash code 3 displayed m. To display remaining flash codes: Operate switch for 2-4 seconds at the end of each flash code. Note flash code and operate switch again. Switch ignition OFF. Rectify faults as necessary. Erasing After each flash code is displayed, operate switch for 5-6 seconds. Repeat procedure for each flash code. /Autodata Engme management 439

1 438 I,,,,,,,,,,,<br />

kJ<strong>Autodata</strong><br />

MERCEDES-BENZ Mode'<br />

C250<br />

I Engine management<br />

<strong>Trouble</strong> code identification<br />

<strong>Trouble</strong> / ash type<br />

code<br />

-<br />

002<br />

1<br />

30<br />

~au~t location<br />

No fault found<br />

Fuel temperature sensor<br />

003 12 I Engine coolant temperature (ECT) sensor I Wiring, ECT sensor, ECM<br />

004 1 13 I Accelerator pedal position (APP) sensor<br />

Probable cause<br />

I Wiring, APP sensor, ECM<br />

005 l 4 I Manifold absolute pressure (MAP) sensor I Wiring, MAP sensor, ECM<br />

006<br />

008<br />

009<br />

01 0<br />

011<br />

012<br />

014<br />

016<br />

017<br />

018<br />

021<br />

31<br />

32<br />

19<br />

18<br />

26<br />

3<br />

26<br />

6<br />

5<br />

16<br />

20<br />

022<br />

26<br />

023 I<br />

Fuel quantity adjuster position sensor<br />

Fuel quantity adjuster<br />

ABS control module - vehicle speed signal<br />

Cruise control master switch - brake pedal position<br />

(BPP) switch<br />

Engine control module (ECM)<br />

Intake air temperature (IAT) sensor<br />

Engine control module (ECM)<br />

Engine speed (RPM) sensor<br />

Crankshaft position (CKP) sensor<br />

Brake pedal position (BPP) switch<br />

Malfunction indicator lamp (M1L)lexhaust gas<br />

recirculation (EGR) solenoid1AT - cruise control<br />

switch-over valves<br />

Engine control module (ECM)<br />

Supply voltagelovervoltage protection relay<br />

I I I<br />

024 1 26 I Engine control module (ECM) I ECM<br />

025 18 I Engine control module (ECM) I ECM<br />

026<br />

026<br />

15<br />

15<br />

027 1 27 I Not assigned I -<br />

028 1<br />

029<br />

12<br />

031<br />

29<br />

Clutch pedal position (CPP) switch<br />

Starter motor relay - AT<br />

Engine control module (ECM) - supply voltage<br />

Supply voltagelholding voltage<br />

Fuel shut-off solenoid<br />

-<br />

Wiring, fuel temperature sensor, ECM<br />

Wiring, fuel qantity adjuster position<br />

sensor, ECM<br />

Wiring, fuel qantity adjuster, ECM<br />

Wiring, ABS fault, ABS control module,<br />

ECM<br />

Wiring, cruise control master switch,<br />

BPP switch, ECM<br />

ECM<br />

Wiring, IAT sensor, ECM<br />

ECM<br />

Wiring, RPM sensor, ECM<br />

Wiring, CKP sensor, ECM<br />

Wiring, BPP switch, ECM<br />

Wiring, hose leaklblockage, EGR<br />

valve, cruise control switch-over<br />

valves, ECM<br />

ECM<br />

Wiring, overvoltage protection relay,<br />

1 ECM<br />

Wiring, CPP switch, ECM<br />

Wiring, starter motor relay, ECM<br />

Wiring, relay module, fuse, ignition<br />

switch, ECM<br />

Wiring, alternator, battery, overvoltage<br />

protection relay, ECM<br />

Wiring, fuel shut-off solenoid, ECM

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