Fault-Tracing

Fault-tracing

Checking the wiring and terminals








- Ignition off.
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).
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 Component Tests and General Diagnostics
- Checking the power supply and ground terminal Component Tests and General Diagnostics
- Trailer Module (TRM) Trailer Module (TRM)
- Checking wiring and terminals Checking Wiring and Terminals

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 - Troubleshooting procedure complete

No - Fault-tracing information

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