External Bose Amplifier

8003 External BOSE amplifier

Fault in front left loudspeaker channel/left door speaker

Diagnostic conditions
- Ignition on
- PCM2/CDR23 ON

NOTE:
- Fault code 8003 is recorded in the PCM2 MMI if the operating buttons are actuated for one or more minutes.
- 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
- Short circuit to B+ / ground in the wiring harness
- Short circuit - loudspeaker faulty
- Short circuit - amplifier faulty

Affected pin







External BOSE amplifier, plug A, pin 27, pin 32, pin25, pin 30

Diagnosis/troubleshooting - BOSE

Part 1:

Part 2: