Question about 2002 Cadillac Escalade

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2002 Escalade, headlights don't work, all other lights do? No brights or dims, fuses all seem to be ok, what would be the next item to check? I have been told the headlight switch but not sure how I would go about that??? Any suggestions

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Make sure the TBC fuse is good in the fuse box under the hood. There is also a Headlamp relay, and fuses marked LT HDLP, and RT HDLP, If the RT HDLP and LT HDLP fuses have power, the headlight switch is good. Be sure battery power is present on both sides on these 3 fuses. If you ground the PURPLE or YELLOW wires at the bulbs, they should light. If they do, the one thing that the high and low beams have in common is the hi-low beam switch and the ground for the switch. The ground ends up at the lower left corner of the dash, under the windshield. The relay is a common relay and you will be able to find another one in the fuse box to swap for testing purposes.

Posted on Nov 13, 2009

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