8003 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 '≥ 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
- 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 24, pin 29, pin 25, pin 38

Diagnosis/Troubleshooting - BOSE

Work Instruction 1 - 5:

Work Instruction 6 - 10: