Operation CHARM: Car repair manuals for everyone.

8001 External BOSE Amplifier



8001 External Bose Amplifier

Supply voltage

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 8003 is recorded in the PCM2 MMI if the operating buttons are actuated for '≥ 1 Min.'.
- 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 positive voltage too low less then 9 V for greater then 20 sec'
- Battery positive voltage too high > 16 V for > 5 sec'
- Fuse faulty.
- Check battery.
- Generator regulator faulty.
- Generator faulty.






PCM2 plug A, pin 1, pin 2

Battery voltage too low

Diagnosis/troubleshooting







Battery voltage too high

Diagnosis/troubleshooting



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