Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CEM-8A20

Condition




The central electronic module (CEM) communicates with the left-hand gas discharge lamp module (GDL).
The diagnostic trouble code (DTC) is stored if the central electronic module (CEM) receives information from the left-hand gas discharge lamp module (GDL), which registers that the left-hand gas discharge lamp module (GDL) does not have parameters for the vehicle type.
The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.

Substitute value
- The shortest headlamp range will be used.

Possible source
- Left-hand gas discharge lamp module (GDL) not programmed with vehicle-specific parameters.

Fault symptom[s]
- Automatic headlamp range control is not functioning.