What would cause a bunch of accessories to go off when I try to hook up the battery?ie: horn,wiper,lights all come on when switches are off)

Asked by Nov 22, 2015 at 05:39 PM about the 2000 Ford Explorer

Question type: Maintenance & Repair

1 Answer


Make sure the battery is connected properly. Red wire goes to the positive post of the battery. If only the lights and horn I would suspect the anti-theft system, but the wipers should not be affected. Try removing the fuses from affected accessories, hook up the battery, the let the car sit for a few minutes. Reinsert the fuses one by one. Possible PCM problem.

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