Fault-Tracing Information

Fault-tracing

Fault-tracing information

Note! This trouble code is only relevant for troubleshooting and action in the following cases:

- The trouble code is active in the present driving cycle and has been active for a longer period of time.
- The customer experiences malfunction that can be attributed to the trouble code.
In other cases, the DTC does not indicate a fault and must therefore be ignored and only erased.

Do you want to continue fault-tracing?

Yes - Checking the wiring and terminals

No - DONE

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Checking the wiring and terminals








- Ignition off.
Check fuses.
Check the cable harness and connectors.
Check the battery voltage.
Check the charging function of the generator (GEN).
- Disconnect the connector for the Trailer module (TRM).
Check voltage feed and ground connection for Trailer module (TRM).

Hint: Also perform a check of the cable resistance across the cable harness from rear relay and fuse box to Trailer module (TRM).

Check voltage feed and ground connection for Central electronic module (CEM).
Remedy as necessary.

Other information
- Connecting the breakout box Connecting Breakout Box, Trailer Module (TRM)
- Signal specification Signal Specification, Trailer Module (TRM)
- For further information, see the wiring diagram.
- Fault-tracing and testing the battery Fault-Tracing and Testing the Battery
- Checking the power supply and ground terminal Component Tests and General Diagnostics
- Trailer Module (TRM) Service and Repair
- Checking wiring and terminals Checking Wiring and Terminals. Permanent Faults

Continue - Verification

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Checking the wiring and terminals

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Verification




Verification

Hint: After carrying out the repair check that the fault has been remedied.




- Reinstall the connectors, components etc.
- If the battery negative lead has been removed:
Connect the battery negative lead.
- Switch on the ignition. Wait 10 seconds.
Read diagnostic trouble codes by clicking the VCT2000 symbol.
If the fault is intermittent, the fault has been remedied.





Is the fault intermittent?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - FAULT FOUND

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