Question about 2002 Ford Expedition

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Lights on I cannot get my lights to turn off unless I disconnect the battery.

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You really need some service literature to find which relay it is that has failed or if your relay/fuse box has functions listed inside, you should be able to find the failed unit pretty quick. The relay's contacts are probably not adequate for the current they carry and are welded together. If the entire light circuit is controlled by a single relay, it has to handle 15-20 amps, maybe more if you have added accessory lights to the originals.

Posted on Oct 23, 2008


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