8001 External BOSE Amplifier

8001 BOSE External 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 longer than '≥ 1 minute'.
- 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 '< 9 V for > 20 sec.'
- Battery 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: