Navigation: 8020
8020 NavigationGPS antenna short circuit
Diagnostic conditions
- Ignition on
- PCM2 on
- Navigation active
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
- Antenna input signal insufficient
- Short circuit in the antenna wiring from GPS antenna on PCM2 to ground or B+
- GPS antenna faulty
- Navigation module faulty
- PCM2 faulty
NOTE:
- The MOST optical waveguide is connected to the following control modules:
- PCM2
- Amplifier optional (Harman or BOSE)
- CD changer
- Telephone/telematics
Affected pins
Plug I, pin 1
Diagnosis/troubleshooting
