Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CEM-B1D1412

Condition
The central electronic module (CEM) supplies voltage to the lighting for handles in the rear doors, middle console and switch for electric parking brake.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Signal too high from the output.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Unactivated interior lighting.

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
- The function switches off permanently after 100 operating cycles where the fault was detected. Erasing diagnostic trouble codes (DTCs) resets the result.

Possible source
- Short-circuit to supply voltage in the power cable.

Fault symptom[s]
- Passenger compartment lighting/Does not work