Elimination:
- Erase fault memory and read it out again after a waiting time of 60 seconds.
- Proceed as described below if the fault is still present:
- Select menu item Input signals.
The following button positions can be read out in the menu item Input signals:
- Button m
- Button 1
- Button 2
- Button 3
- Fore-and-aft adjustment forward
- Fore-and-aft adjustment backward
- Backrest forward
- Backrest backward
- Front height upward
- Front height downward
- Rear height upward
- Rear height downward
- Backrest forward
- Backrest backward
- Button up
- Button down
- Button backward
- Button forward
- Select a maximum of 8 button positions.
- Search for the key on the screen that is continuously actuated. A comparison table can be found on Page 72 - D 38.
- If a key is detected as faulty, replace the switch for memory seat adjustment or the switch for seat adjustment as appropriate.
8002 Navigation
8002 Navigation
Internal Communication fault
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
Diagnosis/troubleshooting on the PCM2 navigation module