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Re: 04 pontiac grand am battery light
If our battery light stay on 1st check all fuses 2nd if the alternator charge good it might be the circuit of alternator that give power to dash that not working alternator charge good but dont send signal to computer me i would check the fuses first under the hood and inside car after i would disconnect the battery for 5 minute reconnect and see if computer reset light i would start with that thanks pierre
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Better check with a test light for power to the small wire that goes to the starter from the key switch. If no power need to check for a neutral safety switch or fuse. Or the starter you got is bad. Alternator will not cause not to crank over
It looks like the wiring needs to be checked, you mentioned a wire that is reconnected, maybe it is damaged in another place, the light comes only if the alternator does not work or is not properly wired.
sounds like your alternator. if you have a multimeter then turn on your car and turn your headlights on/ac and heater fan on high/wipers on and blinkers on. once they are all on hook the meter to the battery and if it reads less then 14 volts then the alt is bad. or you can just take it to a shop and have it tested.
first remove the battery and take it to a auto parts place and have them check it. move on from there. if the battery is good the do a starter draw test. take a meter and hook it to your battery. now have someone try and start the car. if the voltage on the battery drops from 12.8 to below 9 volts then the starter is bad. if the voltage doesnt drop much at all then its prolly the solenoid both of which require starter replacement since most solenoids are on starters. if still nothing then check ignition switch. but before anything else ensure vehicle is in park. if it is in part use a meter to test neutral safety switch.