Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information MMM-B1A8913

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 high.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition switch position II.
- Request for self-test.

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
- Open circuit on signal cable.
- Damaged GPS antenna.

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