Battery Charge light
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MMNC (SS)(Ret)
Joined: Mar 2004
Posts: 11,602
Likes: 148
From: SE Georgia
Battery Charge light
What can cause it to come on?
I jumped my neighbors Saturn 2 days ago. Before that, no lights. I noticed the light come on the next time I started the truck. The volt-meter shows 14-ish volts and the battery seems charged fine.
Any ideas?
I jumped my neighbors Saturn 2 days ago. Before that, no lights. I noticed the light come on the next time I started the truck. The volt-meter shows 14-ish volts and the battery seems charged fine.
Any ideas?
Fleet Owner
Joined: Aug 2005
Posts: 23,666
Likes: 301
From: Easton,Ks
I dough that it is charging and you will have a dead battery in a few days.
See what happens to the voltage when you turn on the head lights and with the blower on high with it running.
I think you took out (shorted or open) diode in the alternator or its regulator.
See what happens to the voltage when you turn on the head lights and with the blower on high with it running.
I think you took out (shorted or open) diode in the alternator or its regulator.
Fleet Owner
Joined: Aug 2005
Posts: 23,666
Likes: 301
From: Easton,Ks
If the voltage does drop under load their should be a field ground point at the back of the alternator (AC Generator) to bypass the regulator. Ground it and see if it charges but do not hold the ground very long or the alternator may overheat.
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Fleet Owner
Joined: Aug 2005
Posts: 23,666
Likes: 301
From: Easton,Ks
If it charges with the F grounded and not other wise it means that the alternator is good and the regulator is bad and all the wiring is good.
If it still does not charge with the F screw grounded it means that either the alternator is bad or you have bad wiring.
If it still does not charge with the F screw grounded it means that either the alternator is bad or you have bad wiring.
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