CEM-1C04

Condition

Diagnostic trouble code (DTC) CEM-1C04 is stored if the central electronic module (CEM) registers that the 30-supply to the central electronic module (CEM) terminals #3E and #6E is too high.

Substitute value

- None.

Possible source

- Defective generator (GEN).
- Defective battery.

Fault symptom[s]

- The "Generator not charging" warning lamp is lit when the engine is running.
- The headlamp bulb blows.
- The "Generator not charging" warning lamp is not lit when the ignition is switched on.
- Low rotation speed in the starter motor.
- The electrolyte in battery boils with the engine running.
- The battery discharges.