CEM-1E05

Condition

Diagnostic trouble code (DTC) CEM-1E05 is stored if the central electronic module (CEM) registers that communication with the additional heater is not operating 5 seconds after the ignition has been switched on.

Substitute value

- None.

Possible source

- Fault in the cable between the additional heater and the central electrical module (CEM).
- Defective communication device, additional heater.
- Defective communication device, central electronic module (CEM).

Fault symptom[s]

- The parking heater does not operate.