Question about 2002 Lexus ES 300

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I have a lexus ls 400 1994 i plugged in the lights on my trailor ,now all of a sudden my tail an head lights dont work. i checked all the fuses. they all appear fine .could they still be blown even if they look fine?also could it possibly be the relay for the headlights?

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Sounds like a relay. Usually when Multiple lights go out simultaneously, it's either a harness or a relay. If it were in fact a harness, you would have more problems then just lighting (found this out the hard way on my friends car). Anyways, pop out the lighting relay and look up a diagram describing how it works, and with a little multimeter know-how, you should be able to narrow your problem down by that.
Also, if you try to reverse what you did (unplug the trailer lights), that MIGHT work. Doesn't hurt to try. Good luck. And drive safe.

Posted on May 19, 2009

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Posted on Jan 02, 2017

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