Trailer Hitch

Fault code 0455

KESSY control module (CAN comfort)

Diagnostic conditions
- Ignition on
- Trailer hitch control module, internal function test

Possible cause of fault
- No signal/communication (no signal from KESSY control module on CAN comfort)

Affected pins
Trailer hitch control module, plug B:
- Pin 7 'CAN comfort (high)'
- Pin 8 'CAN comfort (low)'

Diagnosis/troubleshooting