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CEM-1C07






Diagnostic trouble code (DTC) information CEM-1C07

Condition




The central electronic module (CEM) communicates with the alternator control module (ACM).
The diagnostic trouble code (DTC) is stored if the central electronic module (CEM) receives information from the alternator control module (ACM) indicating overheating in the generator (GEN).
The diagnostic trouble code (DTC) can be diagnosed at engine speeds (RPM) above 600 rpm.

Substitute value
- None.

Possible source
- The air ducts for the generator (GEN) are blocked.

Fault symptom[s]
- The "Generator not charging" warning lamp is lit when the engine is running
- The battery discharges
- Low rotation speed in the starter motor.