PCM2 MMI

8007 PCM2 MMI

Open circuit to ring break diagnosis line ground/B+

Diagnostic conditions
- Ignition on.
- PCM2 on.

Possible cause of fault
- Open circuit to ring break diagnosis line ground/B+.
- The recipient MOST control module is faulty.
- PCM2 faulty.

NOTE:
- The diagnosis distribution line is connected to the following MOST control modules:
- PCM2 as of model year 2003.
- PCM2 gateway.
- PCM2 MMI
- PCM2 navigation (optional).
- The diagnosis distribution line and the MOST optical waveguide are connected to the following control modules:
- External amplifier (Harman or BOSE) (optional).
- CD changer (optional).
- Telephone/telematics (optional).







Affected pin
PCM2 plug C, pin -4

Diagnosis/troubleshooting

Part 1:

Part 2: