Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information MMM-U220044

Condition
The multimedia module (MMM) checks internal control module components.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Internal fault in the multimedia module (MMM).
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Start-up of the control module.

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
- Damaged multimedia module (MMM).

Fault symptom[s]
- Navigation/Locations cannot be stored/disappears