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

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I bJiil<br />

MERCEDES-BENZ Model.<br />

C-Class (202) EElass (124) EClass (210) SClass (140)<br />

SL (129) SLK (170)<br />

Transmission<br />

-<br />

A B A B A C A B A B A<br />

Erasing - flash type<br />

Ensure ignition switched OFF.<br />

Bridge data link connector (DLC) terminals 1 <strong>and</strong> 10 or 1<br />

<strong>and</strong> 13 with a switched lead - contacts normally open 0<br />

or O.<br />

Connect LED test lamp between terminals 3 <strong>and</strong> 10 or 13<br />

<strong>and</strong> 16 0 or O.<br />

NOTE: Connect LED test lamp positive connection to terminal 3<br />

or 16.<br />

Switch ignition ON.<br />

Operate switch for 2-4 seconds.<br />

Allow LED to display trouble code.<br />

Wait 3 seconds.<br />

Operate switch for 6-8 seconds.<br />

Repeat operation to erase all stored trouble codes<br />

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

I<br />

I<br />

Flash type <strong>Fault</strong> location / Probable cause<br />

I<br />

I<br />

1 1 No fault found<br />

3<br />

Engine control module (ECM)/transmission control module<br />

(TCM) - incorrectly coded<br />

Transmission control module (TCM) - load signallrangel<br />

performance problem<br />

I CAN data bus. ETS - malfunction<br />

ECM incorrectly coded, ECM trouble code@)<br />

I stored<br />

Wiring, trouble code@) stored in other system(s),<br />

TCM, ECM<br />

4 I Accelerator pedal position (APP) sensor - signal I Wiring, APP sensor, TP switchlsensor, TCM<br />

5<br />

5 0<br />

6<br />

6 0<br />

7<br />

7 0 I Shift solenoid (SS) 4 - malfunction I Wiring, SS, TCM<br />

8<br />

9<br />

10<br />

Transmission control module (TCM) - RPM signal<br />

CAN data bus, TCMIECM - malfunction<br />

Transmission control module (TCM) - VSS signal<br />

CAN data bus - malfunction<br />

Transmission control module (TCM) - output stage<br />

Transmission control module (TCM) - internal fault<br />

Transmission valve block - malfunction<br />

Transmission valve block - electrical fault<br />

-<br />

Wiring, trouble code@) stored in other system(s),<br />

ETS control module<br />

Wiring, ECM control module trouble code@)<br />

stored, TCM, ECM<br />

Wiring, trouble code(s) stored in other system(s),<br />

TCM, ECM<br />

Wiring, VSS, instrument panel, multifunction<br />

relay<br />

Wiring, trouble code(s) stored in other system(s)<br />

Wiring, transmission valve block, APP sensor,<br />

TP switch/sensor, TCM, ECM<br />

TC M<br />

Wiring, transmission valve block, shift solenoid<br />

(SS), TCM<br />

Wiring, connector, transmission valve block,<br />

shift solenoid (SS), TCM<br />

E-Class (124), SL with HFM, S-Class<br />

E-Class (124), SL with HFM, S-Class: <strong>Trouble</strong> code could be indicated due to repair work. Erase code <strong>and</strong> run engine for<br />

approximately 10 seconds with 1000 rpm minimum. If the trouble code is displayed again the fault still exists.

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