Symptom Chart: Notes

SYMPTOM CHART

Condition	Possible Sources	Action
The battery is discharged or battery voltage is low	Battery	GO to PINPOINT TEST A .
The battery is discharged or battery voltage is low	Generator High key-off current drain(s) Engine, generator and battery grounds Positive battery cable	For Escape Hybrid, REFER to HIGH VOLTAGE CONVERTER/INVERTER to diagnose the DC/DC converter.
The charging system warning indicator is on with the engine running (the charging system voltage does not increase)	Circuitry Generator Powertrain control module (PCM)	GO to PINPOINT TEST B .
The charging system overcharges (battery voltage is greater than 15.5 volts)	Circuitry Generator Powertrain control module (PCM)	GO to PINPOINT TEST C .
The charging system warning indicator is on with the engine running and the battery increases voltage	Generator Instrument cluster Powertrain control module (PCM)	GO to PINPOINT TEST D .
The charging system warning indicator is off with the ignition switch in the RUN position and the engine off	Instrument cluster Powertrain control module (PCM)	GO to PINPOINT TEST E .
The charging system warning indicator flickers or is intermittent	Instrument cluster	INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER .
The generator is noisy	Loose bolts/brackets Accessory drive belt Generator/pulley	GO to PINPOINT TEST F .
Radio interference	Generator In-vehicle entertainment system	GO to PINPOINT TEST G .