Question about 2002 Cadillac Escalade Ext

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02 Escalade no headlights, dim or bright. Running lights work, fuses all seem to be OK, what would be the next thing to check

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I would check the switch that turns on those lights
hope this helps

Posted on Nov 13, 2009

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My 2004 chevy impala dash lights wont come on bright gear selector will light up bright and stereo and then go dim.start car there bright then go dim but the speedometer or other dash lights will not light...


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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...


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.

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The only thing that all of your problems have in common is the light switch and the dash wiring harness. The stereo is linked to the light switch because of it's illumination feature' You need to test the light switch with a test light by probing the wires at it's plug.

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