Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code information

Condition
If the control unit does not get a response from the sunroof after a repeated request, the control unit interprets this as a communication fault and a diagnostic trouble code is set.

Substitute value
- Nothing.

Possible source
- Open circuit on UEM_K3 (serial wire between UEM, siren and sunroof).
- UEM_K3 short circuited to ground.
- UEM_K3 short circuited to voltage supply.
- Defective sunroof.

Fault symptom[s]
- Electric sunroof does not work.