Signal Too High or temperature Too High

Signal too high or temperature too high

Checking the wiring




- Ignition on.
Erase diagnostic trouble codes by clicking the VCT2000 symbol.

Note! Note any other diagnostic trouble codes (DTCs) that are in the control module, before the diagnostic trouble codes (DTCs) are erased, in order to carry out other fault-traces.

Activate the rear fog lamp using the switch on the Light switch module (LSM).
The fog lamp relay clicks when it is deactivated.
If a clicking sound can be heard, the circuit up to the Rear electronic module (REM) is fault free.
Deactivate the rear fog lamp.
Measure the voltage between the lead for voltage feed and a safe grounding point.
The voltage must be 0 V.
Check the connectors between the Rear electronic module (REM) and the Trailer module (TRM). Check for contact resistance and oxidation. Check for loose connections.
Remedy as necessary.

Other information
- Checking wiring and terminals Checking Wiring And Terminals





Was a fault detected?

Yes - Verification

No - Fault-tracing information

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Verification




Verification

Verification

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








- Switch off the ignition. Wait at least 15 seconds
- Reinstall the connectors, components etc.
- Read off the diagnostic trouble codes (DTCs) by clicking on the VCT2000 symbol.
Check that the diagnostic trouble code (DTC) for too high voltage is not stored again.





Does the diagnostic trouble code (DTC) recur?

Yes - VERIFICATION FAILED

No - VERIFIED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - VERIFIED

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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 - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the wiring

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