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Q:

battery light stays on, had the bat, alt, and starter checked. what else is it? on 2002 Ford Ranger

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battery light stays on all the time. Car runs fine, how can i get it to go out.
(1) Answer
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Hi There is a diode in the alternator that is like a check valve which if bad will send power back to the cluster and turn the battery light on. I suspect that is the problem.
thank u. i think that was the problem. had the alternator changed since it was under warranty. Thanks again for ur response. chris