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Charging System

CHARGING SYSTEM

Symptom Suspect area Remedy
Charging warning indicator does not light with ignition switch "ON" and engine off. Fuse blown Check fuses
Light burned out Replace light
Wiring connection loose Tighten loose connection
Electronic voltage regulator Replace alternator
Communication error Inspect wiring between ECM-Regulator Inspect ECM output signal/or replace alternator as required
Charging warning indicator does not go out with engine running. (Battery requires frequent recharging) Drive belt loose or worn Adjust belt tension or replace belt
Battery cable loose, corroded or worn Inspect cable connection, repair or replace cable
Electronic voltage regulator or alternator Replace alternator
Wiring Repair or replace wiring
Battery condition detection error Replace battery sensor
Overcharge Electronic voltage regulator Replace alternator
Voltage sensing wire Repair or replace wiring
Discharge Drive belt loose or worn Adjust belt tension or replace belt
Wiring connection loose or short circuit Inspect wiring connection, repair or replace wiring
Electronic voltage regulator or alternator Replace alternator
Poor grounding Inspect ground or repair
Worn battery Replace battery
Bad electrical load Replace electrical load