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Fault Code 38, - As of My 2002



Fault Code 38, - As Of MY 2002

CAN time-out for PCM

NOTE:
- The CAN comfort bus is connected to the following control units:
- Instrument cluster
- Air-conditioning system regulator
- PCM2/CDR23 (if present)
- 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
- CAN message missing from PCM(2)
- Open circuit of CAN-high lead between PCM(2) and CAN comfort connection point
- Open circuit of CAN-low lead between PCM(2) and CAN comfort connection point
- PCM(2) not connected or faulty

Affected pins

Diagnosis/troubleshooting


Diagnosis/troubleshooting:




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