headlight problem - JeepForum.com

 
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post #1 of 10 Old 02-02-2013, 01:59 PM Thread Starter
bonehead61
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headlight problem

I have a 1990 Jeep wrangler I am having a problem with the headlights, when I turn on my parking lights my headlights come on with them. I have no high beams low only. I replaced the park light and headlight switch that is located on the dash, but still having the same problem. Someone told me to replace the headlight relay. Does anyone know where the Headlight Relay is located on the jeep? Or what do you think the problem is with it. Thanks

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post #2 of 10 Old 02-02-2013, 03:33 PM
Mark05059
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1989 YJ Wrangler 
 
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sounds like you have a ground problem. Try cleaning the grounds at the parking lights

1998 ZJ 5.2 Auto

1989 Wrangler Black Bone Stock 2.5l 5spd
/l , [____],
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post #3 of 10 Old 02-02-2013, 05:07 PM Thread Starter
bonehead61
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headlight problem

Thanks I will check that out
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post #4 of 10 Old 02-02-2013, 06:34 PM
Xpress
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You do not have relays, YJ's never got them, all of the current passes through the switch (which is why a couple of the wires are so large).

Your particular issue may be related to a short or improper wiring. A ground issue usually causes a lamp to not work..

All about that unibody life.
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post #5 of 10 Old 02-02-2013, 06:56 PM
Northinger
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Theres no relay? I have a somewhat similar issue, if i leave my highbeams on for about 10 minutes the headlights turn off completely.
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post #6 of 10 Old 02-02-2013, 07:34 PM
Mark05059
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Quote:
Originally Posted by Northinger View Post
Theres no relay? I have a somewhat similar issue, if i leave my highbeams on for about 10 minutes the headlights turn off completely.
not even close to a similar issue. The headlight switch has an overload built into it. Just change the switch and it will go away.

1998 ZJ 5.2 Auto

1989 Wrangler Black Bone Stock 2.5l 5spd
/l , [____],
|---L--[]lllllll[]-
()_) ()_)==O=)_)
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post #7 of 10 Old 02-02-2013, 07:44 PM
Northinger
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Do you mean the switch below the tach?
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post #8 of 10 Old 02-02-2013, 08:02 PM
Xpress
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No relays whatsoever. The factory switch has a built in failsafe incase there is excessive current- it flicks the lights off momentarily until the unit can cool back down and re-power the headlamps. Replacing the switch is always a good idea, because they can build up resistance overtime. Consider doing the Headlight Relay Upgrade to send direct voltage to your lamps (you lose a volt or two (or around 100-200 lumens or so) using the factory wiring) and get better light output.

All about that unibody life.
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post #9 of 10 Old 02-02-2013, 08:22 PM
Northinger
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If thats the case, the PO might have done that because when i switch the lights on i hear a click noise from around the shifter under the dash, is this normal?
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post #10 of 10 Old 02-03-2013, 02:45 AM Thread Starter
bonehead61
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headlight problem

I replaced the headlight switch already that's on the dash. I will check the ground next if that's not the problem should I change switch on column this is the only thing holding me up from putting this on the road.
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