8005 External BOSE Amplifier

8005 External BOSE Amplifier

Malfunction in rear left loudspeaker channel/right door speaker

Diagnostic conditions
- Ignition on.
- PCM2/ CDR 23 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

Affected pin
External BOSE amplifier, plug A, pin 24, pin 29, pin 25, pin 38

Bose diagnosis/troubleshooting

Bose Diagnosis/troubleshooting (Part 1):

Bose Diagnosis/troubleshooting (Part 2):