Question about 2004 Nissan Pathfinder
Wild guess, but if the heater was jammed or had a short, it could have been the original cause of the last alternator burning out and could still be causing a strain on the current one.
First check if the alternator really is working ok by putting a voltmeter across the battery and seeing 12.5 at idle, and over 14 when reved.
Disconnect the fuses, one at a time, to see if the light goes out completely or voltage rises.
If you do, then trace the draw to its component, like the switch, a rubbed through wire, bound motor, etc.
But I agree with hotchevy1965 that dirty battery terminals or bad engine ground could also do it.
Posted on Sep 29, 2010
SOUND LIKE ALTERNATOR BELT TOO LOOSE NEED ADJUSTMENT.OR ALTERNATOR DRIVE BELT GLAZED AND SLIPPING.IF ALL IS GOOD BATTERY CABLES WORN CAUSING POOR GROUNDING PUTTING HIGH RESISTANCE ON CHARGING CIRCUIT OR YOU COULD HAVE LOOSE,DIRTY CABLES WITH CORROSION BUILD UP.OR ALTERNATOR WIRES LOOSE OR BROKEN.
Posted on Sep 28, 2010
Testimonial: "thank you much.i have been stuck on this for some time and have to have it going to get to work.thanks again."
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Posted on Jan 02, 2017
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