Trailer Hitch

Fault code 1336

CAN comfort OFF

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

Possible cause of fault
- Short circuit between CAN lead (high) and CAN lead (low)
- Short circuit to B+
- Short circuit to ground
- Fault in a control module connected to CAN comfort

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

Diagnosis/troubleshooting