Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CEM-2F60

Condition




The central electronic module (CEM) receives information about the prevailing light conditions from the twilight sensor.
This information is used to determine the light intensity for symbols and the instrument lighting. Two different levels are pre-defined, one for day and one for night.
The diagnostic trouble code (DTC) is stored if the central electronic module (CEM) registers a short-circuit to battery voltage in the twilight sensor circuit or an open-circuit.
The diagnostic trouble code (DTC) can be diagnosed at key positions I and II.

Substitute value
- The light intensity for night is used.

Possible source
- Contact resistance in the control module connector
- Open-circuit in the signal ground cable
- Open-circuit or short-circuit to supply voltage in the signal cable
- Damaged twilight sensor.

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