Steering Column Switch

Fault code 0457

Vehicle electrical system control module (CAN comfort)

Diagnostic conditions
- Ignition on
- Internal functional check on electronic unit in steering column switch

Possible cause of fault
- No communication with vehicle electric system control module

Affected pins
Electronic unit in steering column switch plug A:
- Pin 8 'CAN comfort (low)'
- Pin 9 'CAN comfort (high)'

Diagnosis/troubleshooting