Question about 2000 Jeep Wrangler

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Head lights on 1990 jeep wrangle won't work

I have tested the fuses and they all work. I also tested the switch to turn on the headlights and that works as well. My blinkers work and so do my tail lights. Everything works but my headlights-no high beams or low beams-what could be wrong with my headlights so I can fix them?

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Try high beams, low beams. If you can change beams, this may fix the problem or you might have a bad dimmer/light switch.

Posted on Feb 06, 2013

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Ckeck the headlight connections they are notorious for corroding. Check the ground connection for the lights. Pull your dimmer switch back as if you were flashing a car to pass and see if they work there. If they do you have a dimmer switch problem.

Posted on Dec 20, 2008

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1 Answer

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I wouls check the fuses first. They are located inside the car in the panel with the other fuses and the cover should tell you which fuses they are. There is a bank of relays next to the battery which relate to the headlights, retract relays, a passing relay and a headlight relay. If the fuses are good and the headlights pop up, but do not turn on, you might have a bad head lamp relay. The relay at the very front as you face the engine compartment is tha headlight relay. The second relay is the passing relay. They are both the same color, black. You should be able to swap them out. If the lights come on, then you know the relay was bad, you can only buy them at a Nissan dealer. If ththey didn't, you may have a bad head lamp switch. In not being a professional, you wouldn't know how to bypass the switch to confirm it is bad, but if you have done properly what I have instructed you yo do, chances are the switch is bad. Note: in checking the fuses, using a test light is usually the best and fastest way to confirm that the fuse is good or bad by touching the tip of the test lead to one side of the sxposed metal on the fuse and then on the other side. The light should go onwhen you do this test. If it doesn't light up on one side, the fuse is blown. Make sure you have a good ground on the other end of the test lead. Often just clipping the end of the lead to the ignition ke while it is inserted in the ignition lock will work. Make sure that the key is turned all the way on to where the dash lights are lit even though the head lampe are not on the switrched circuit, you never know what you will find sometimes.

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see the diagram attached, and test loose wires+connector , corrosion, oxide, dirty, clean it with contacts cleaner. 2) test the switch for open or faulty 3) test the headlight for open or broker 4) test the fuse.
see the diagram attached.
God bless you
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1 Answer

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1 Answer

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If the other head light works ,it won't be a fuse

Check every fuse in the car,won't take long &
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The light switch has a circuit breaker not a fuse.

Have you removed & tested the lamp it'self

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