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 '< 9 V for > 20 sec.'
- Battery positive voltage too high '> 16 V for > 5 sec.'
- Fuse faulty.
- Check battery.
- Generator regulator faulty.
- Generator faulty.

Affected pin







PCM2 plug A, pin 1, pin 2

Battery Voltage Too Low

Diagnosis/Troubleshooting

Work Instruction 1 - 5:

Battery Voltage Too High

Diagnosis/Troubleshooting

Work Instruction 1 - 3: