8009 External BOSE Amplifier

8009 BOSE External Amplifier

Coding

Diagnostic conditions
- Ignition on
- PCM2/CDR 23 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
- Open circuit, high contact resistance or short circuit to B+/ground in wiring harness
- Speaker faulty
- Amplifier faulty

Affected pin
- none

Diagnosis/Troubleshooting BOSE

Work Instruction 1: