Porsche Stability Management (PSM)

Fault Code 2053

Transfer box control module

Diagnostic conditions

- Ignition on
- Internal PSM control module function test

Possible cause of fault

- Please read out fault memory
- No signal from transfer box control module (no signal/communication)

Affected pins

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

Diagnosis/troubleshooting PSM 0101

NOTE: If there is no incoming signal via the CAN drive using several control modules, the CAN drive must be checked for open or short circuits. Refer to 'Checking instructions/CAN data bus'.