Fault Code 37
Fault code 37
CAN signal PCM
NOTE:
- The CAN comfort bus is connected to the following control units
- Instrument cluster
- Air-conditioning system regulator
- PCM2/CDR23 (if present)
NOTE: Communication between the Porsche System Tester II 9588 and the air-conditioning system regulator or PCM2/CDR23 (if present) occurs via the instrument cluster and the CAN comfort bus.
Diagnostic conditions
- Ignition on
Possible cause of fault
- Missing or implausible signal from PCM(2)
- PCM(2) faulty
Affected pins
Diagnosis/troubleshooting