Diagnostic Trouble Code (DTC) Information

Condition 

Diagnostic trouble code (DTC) CEM-1C05 is stored if the central electronic module (CEM) registers that the 30-supply to central electronic module (CEM) terminals #3E and #6E is low.

Substitute Value 

None.

Possible Source 

• Contact resistance or loose connections in the terminals
• Low battery voltage, poor battery or the battery needs charging
• Defective generator (GEN).

Fault symptom[s] 

• The "Generator not charging" warning lamp is lit with the engine running
• The headlamp bulbs blow
• 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.