PCM2 CD Changer

8001 CDC

CD changer faulty

Diagnostic conditions
- Ignition on
- PCM2/CDR23 ON

NOTE:
- The fault memory status (present / not present) is always updated when the motor is running.
- 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. If this is not done, the diagnosis will abort.

Possible cause of fault
- Battery voltage too low less than 9 V for greater than 30 sec
- Battery voltage too high greater than 16 V for greater than 30 sec
- Check fuses (fuse in CD changer under the cover)
- Check battery

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

Affected pins
CD changer, plug A, pins 1 and 2

Diagnosis/troubleshooting

Work Instruction 1 - 5: