PCM2/CDR23 (Navigation)

8021 Navigation

Open circuit in GPS antenna

Diagnostic conditions
- Ignition on
- PCM2 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 in the antenna wiring between GPS antenna and the PCM2
- GPS antenna faulty
- Navigation module faulty
- PCM2 faulty

NOTE:
- The MOST optical wave guide is connected to the following control modules:
- PCM2
- External amplifier optional (Harman or BOSE)
- CD changer optional
- Telephone/telematics

Affected pins
Plug I, pin 1

Diagnosis/troubleshooting