Kessy/Immobiliser

Fault code 1321

Airbag triggering unit

Diagnostic conditions
- Internal KESSY control module function test

Possible cause of fault
- No signal/communication (no signal from airbag triggering unit on CAN drive)
- Implausible signal (from airbag triggering unit on CAN drive)

Affected pins
KESSY control module plug A:
- Pin 21 'CAN drive (low)'
- Pin 22 'CAN drive (high)'

Diagnosis/troubleshooting