Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition
If control module recievs no response from siren at repeated requests, this is understood as a communication fault and the diagnostic trouble code (DTC) is stored.

Substitute value
- None.

Possible source
- Open-circuit on UEM_K3 (serial cable between UEM, siren and sun roof).
- UEM_K3 short-circuit to ground.
- UEM_K3 short-circuit to battery voltage.
- Defect siren.

Fault symptom[s]
- Siren does not work.
- Alarm does not work.