Symptom Chart

WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

Symptom Chart

Condition	Possible Sources	Action
The battery is discharged or battery voltage is low	High key-off current drain(s) Engine, generator and battery grounds Positive battery cable Circuitry Battery Generator	Go to Pinpoint Test A .
The charging system warning indicator is on with the engine running and no charging system DTCs present	Circuitry PCM Generator Instrument cluster (IC)	Go to Pinpoint Test C .
The generator is noisy	Accessory drive belt Loose bolts/brackets Generator/pulley	Go to Pinpoint Test D .
Radio interference	Generator Circuitry In-vehicle entertainment system	Go to Pinpoint Test E .