Symptom Chart - Charging System

Condition	Possible Sources	Action
System voltage high	Fuse Wiring, terminals or connectors Engine, generator and battery ground Battery Generator PCM	GO to PINPOINT TEST A .
System voltage low or battery is discharged	Fuse Fusible link Wiring, terminals or connectors Engine, generator and battery grounds Abnormal ignition-off current drain(s) Battery Generator Generator clutch pulley (if equipped) PCM High current BJB	GO to PINPOINT TEST B .
The generator is noisy	FEAD belt Loose bolts/brackets Generator/pulleys	GO to PINPOINT TEST F .
Radio interference	Generator Wiring, terminals or connectors In-vehicle entertainment system	GO to PINPOINT TEST G .
Charging system warning indicator is never/always on	Wiring, terminals or connectors IPC Generator PCM	RETRIEVE CMDTCs from all modules. If any charging system DTCs are found, REFER to DTC CHARTS . If no charging system DTCs are found, REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES .