Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information MMM-B1A8911

Condition
The Multimedia module (MMM) checks the DC voltage on the signal cable from the GPS antenna.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Direct current (DC) is too low.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition switch position II.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.





Substitute value
- None.

Possible source
- Trapped antenna cable (short-circuit to ground in own cable screen).
- The signal cable is short-circuited to ground.
- Damaged GPS receiver in the Multimedia module (MMM).

Fault symptom[s]
- Car position on map is incorrect
- Navigation; No Functionality