External Harman Amplifier

8007 External Harman Amplifier

No load on left subwoofer

Diagnostic conditions
- Ignition ON
- PCM2/CDR23 ON

NOTE: Fault code B003 is recorded in the PCM2 MMI if the operating buttons are actuated for one or more minutes.

Possible cause of fault
- Short circuit to B+/ground in the wiring harness
- Short circuit - loudspeaker faulty
- Short circuit - amplifier faulty

Affected pin







External Harman amplifier, plug A, pin 1, pin 2, pin 7, pin 14, pin 16.

Diagnosis/troubleshooting for Harman

Part 1:

Part 2: