Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CEM-8B09

Condition




The central electronic module (CEM) powers the background lighting in the light switch module (LSM) directly via an output.
A DTC is stored if the Central electronic module (CEM) registers that the resupplied signal does not correspond with the outgoing signal.
The DTC can be diagnosed in key position I and II and dipped beam off.

Substitute value
- None.

Possible source
- Short-circuit to supply voltage in the signal cable for the background lighting for the light switch module (LSM)
- Open-circuit in the signal cable for the background lighting for the light switch module (LSM).

Fault symptom[s]
- The lighting in the instrument panel does not function.