Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CEM-1A03

Condition




The central electronic module (CEM) monitors the cable for S-supply from the ignition switch.
The diagnostic trouble code (DTC) is stored if the central electronic module (CEM) registers an open-circuit or a short-circuit to ground in the S-supply.
The diagnostic trouble code (DTC) can be diagnosed in ignition positions I and II.

Substitute value
- None.

Possible source
- Contact resistance in the terminals
- Open-circuit or short-circuit to ground in the S-supply
- No communication with the key
- Damaged ignition switch.

Fault symptom[s]
- The starter motor does not turn.