PSM

Fault code 1312

CAN drive

Diagnostic conditions
- Ignition on
- Internal PSM control module function test

Possible cause of fault
Communication problem with all control modules via CAN drive
- Short circuit to ground (faulty)
- Short circuit to B+ (faulty)
- Open circuit in wiring harness (faulty)

Affected pins
PSM control module plug:
- Pin 11 'CAN drive (high)'
- Pin 15 'CAN drive (low)'

Diagnosis/troubleshooting PSM 0101