PCM2 CD Changer

8004 CD Changer

Fault in speed control unit

Diagnostic conditions
- Ignition on.
- PCM2/CDR23 ON

NOTE:
- Fault code 8013 is recorded in the PCM2 MMI/CDR23 if the operating buttons are actuated for one or more minutes.
- Deactivate the automatic traffic announcement before performing the diagnosis on the PCM2/CDR23. If this is not done, the diagnosis will abort (applies only to software version number less than 03).

Possible cause of fault
- CD changer faulty

NOTE:
- The MOST optical waveguide is connected to the following control modules:
- PCM2/CDR23
- Optional external amplifier (BOSE)
- CD changer optional
- Telephone/telematics (only in conjunction with PCM2)

Affected pins
- none

Diagnosis/troubleshooting

Work Instruction 1 - 2: