Kessy/Immobiliser

Fault code 0457

Vehicle electrical system control module (CAN comfort)

Diagnostic conditions
- Internal KESSY control module function test

Possible cause of fault
- No signal/communication (no signal from vehicle electrical system control module on CAN comfort)
- Read out fault memory (of vehicle electrical system control module)

Affected pins
KESSY control module plug A:
- Pin 23 'CAN comfort (low)'
- Pin 24 'CAN comfort (high)'

Diagnosis/troubleshooting