Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition
The Driver/Passenger door module (DDM/PDM) is continuously supplied with necessary information from the Central electronic module (CEM).
The diagnostic trouble code (DTC) is stored if the control module detects that:
- No communication with the Central electronic module (CEM).
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition on.

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
- Fault-trace the central electronic module (CEM).
- Open-circuit or short-circuit in the wiring for the control area network (CAN).
- Short-circuit to ground in the communication cable.
- Short-circuit to supply voltage in the communication cable.
- Contact resistance, oxidation or open-circuit in the terminals.
- The Passenger door module (PDM) is not designed for this vehicle, e.g., a used control module with other software.

Hint: If several diagnostic trouble codes (DTCs) are generated in the central electronic module (CEM) for communication errors with other control modules in intermediate speed network, this indicates a common fault in the Control area network. See wiring diagram for vehicle model in question.

Fault symptom[s]
- Doors/Power locking (button in door panel) does not work
- Door trim panels/Interior door lock does not work
- Locking/unlocking/Central locking does not work
- Locking/unlocking/Other central locking problems
- Doors/Child lock/Does not work
- Switch indication/Does not work
- Approach lighting/Does not work
- Side marking lights/Does not work
- Electrical operated window/No/reduced/incorrect function
- Door mirrors/Electrical adjustment does not work
- Defog/defrost/Door mirrors defog/defrost/Does not work
- Door mirrors/Automatic adjustment (memory) does not work
- Rear view mirror/Adjustment does not work