Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition
Diagnostic trouble code (DTC) CEM-1E04 is stored if the central electronic module (CEM) registers that communication with the light switch module is not operating within 5 seconds of the ignition being switched on.

Substitute value
None

Possible source
- Fault in the cable between the light switch module and the central electrical module (CEM)
- Defective communication device, lamp switch module
- Defective communication device, central electronic module (CEM)

Fault symptom[s]
- Beam height control does not function
- The light switch does not operate