External Bose Amplifier

8001 External BOSE amplifier

Supply voltage

Diagnostic conditions
- Ignition on
- PCM2/C0R23 ON

NOTE:
- Fault code 8003 is recorded in the PCM2 MMI 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.
- This fault is also detected and stored in the memory by other control modules.

Possible cause of fault
- Battery positive voltage too low '[<] 9 V for [>] 20 sec.'
- Battery positive voltage too high '[>] 16 V for [>] 5 sec.'
- Fuse' D9' faulty
- Check battery
- Generator regulator faulty
- Generator faulty

Affected pin







PCM2 plug A, pin 1, pin 2

Battery voltage too low

Diagnosis/troubleshooting







Battery voltage too high

Diagnosis/troubleshooting