PCM2/CDR23 - External BOSE Amplifier

8009 External BOSE Amplifier

Incorrect coding/programming

Diagnostic conditions
- Ignition on
- PCM2/CDR23 on

NOTE:
- 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
- Open circuit, contact resistance, or short circuit to B+/ground in the wiring harness
- Loudspeaker faulty
- Amplifier faulty

Diagnosis/troubleshooting BOSE