PCM2/CDR23 - Navigation

8002 Navigation

Internal communication error

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
- Navigation module faulty

NOTE:
- The MOST optical waveguide is connected to the following control modules:
- PCM2
- CD changer
- Amplifier
- Telephone/telematics

Affected pins
- none

Diagnosis/troubleshooting on the PCM2 navigation module

Work Instruction 1 - 2: