Diagnostic Trouble Code (DTC) Information CEM-8A30
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 a faulty signal from the front / rear position sensor.
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
- Short-circuit to ground in the signal cable to the front / rear position sensor
- Short-circuit to battery voltage in the signal cable to the front / rear position sensor
- Open-circuit in the signal cable to the front / rear position sensor.
Fault symptom[s]
- Automatic headlamp range control is not functioning.