headlights don't work but bright lights do work
got a 1999 two door tahoe and the headlights do not work, but the bright lights work fine. i tried new bulbs, new fuses and even got a new control switch. what else can i do? and how?
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The lights are fused separately for high and low beam.
The low beam fuse is 10 amp marked LO HDLP in the underhood fuse panel. This fuse is powered by the low beam relay. The relay is activated by the body control computer (BCM). If the fuse isn't being powered it may be a bad relay, wiring to the relay or the BCM. If it is the BCM there may be a code stored in memory. Also check the Headlamp relay which is located in the wiring harness junction block.
Attached is a further description of your headlight circuit as well as a wiring diagram. Good Luck
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I have a 98 astro, I had problems with my turn signals and low beams. I replaced the relay and it fixed both. For some reason the low beams and turn signals are related electically? But yes check the electric block first.
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Same problem no headlights maybe find problem tks
9条评论
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