Symptom Troubleshooting Chart - Charging System: Notes

SYMPTOM TROUBLESHOOTING CHART - CHARGING SYSTEM

Symptom Troubleshooting Chart - Charging System
Problem	Possible Cause	Action
Battery is Discharged or Battery Voltage is Low	Circuitry High key-off current drain(s) Battery Generator	See CHARGING SYSTEM PINPOINT TEST 1: BATTERY IS DISCHARGED OR BATTERY VOLTAGE IS LOW
Charging System Warning Indicator is ON with the Engine Running (The Charging System Voltage Does Not Increase)	Circuitry Generator	See CHARGING SYSTEM PINPOINT TEST 2: CHARGING SYSTEM WARNING INDICATOR IS ON WITH THE ENGINE RUNNING (CHARGING SYSTEM VOLTAGE DOES NOT INCREASE) .
Charging System Overcharges (Battery Voltage Greater Than 15.5 Volts)	Circuitry Generator	See CHARGING SYSTEM PINPOINT TEST 3: CHARGING SYSTEM OVERCHARGES (BATTERY VOLTAGE IS GREATER THAN 15.5 VOLTS) .
Charging System Warning Indicator is ON with the Engine Running and the Battery Voltage Increases	Circuitry Instrument Cluster Generator	See CHARGING SYSTEM PINPOINT TEST 4: CHARGING SYSTEM WARNING INDICATOR IS ON WITH THE ENGINE RUNNING AND THE BATTERY INCREASES VOLTAGE .
Charging System Warning Indicator is OFF with the Ignition Switch in the RUN Position and the Engine OFF	Bulb Circuitry Instrument Cluster Generator	See CHARGING SYSTEM PINPOINT TEST 5: CHARGING SYSTEM WARNING INDICATOR IS OFF WITH THE IGNITION SWITCH IN THE RUN POSITION AND THE ENGINE OFF .
Charging System Warning Indicator Flickers or is Intermittent	Smart junction box (SJB) fuse 10 (10A) Generator connector unplugged (A-168) Circuitry Generator	See CHARGING SYSTEM PINPOINT TEST 6: CHARGING SYSTEM WARNING INDICATOR FLICKERS OR IS INTERMITTENT .
Generator is Noisy	Bolts or brackets Drive belt Generator or pulley	See CHARGING SYSTEM PINPOINT TEST 7: GENERATOR IS NOISY .
Radio Interference	Generator Circuitry In-vehicle entertainment system	See CHARGING SYSTEM PINPOINT TEST 8: RADIO INTERFERENCE .