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Unread 05-05-2013, 10:53 PM   #1
jcoty
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Highbeams Stuck On

Hi all. I have an '04 TJ Sport 4.0 5speed that I just got a couple weeks ago so I'm still a bit new to TJ's. Anyways, I was driving today and all the sudden my highbeams indicator came on as did my headlights. I didnt turn them on or anything since it was still day light. I turned the car off but the indicator as well as the lights stayed on. I tried turning the lights on/off and pulling the highbeam switch but they wouldnt go off. I tried disconnecting the battery in hopes the gremlin would flee but to no avail. : any ideas as to what this could be and how to remidy the situation?
Thanks in advance

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Unread 05-05-2013, 11:40 PM   #2
mikedff23
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Sounds like you burn out the relay or the headlights high beam switch. Jeep wiring = the devil
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Unread 05-06-2013, 08:39 AM   #3
RnEmOvr
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Could be a few things. One is the multi-function switch, two is the headlight switch or three is the relay as mentioned above. Cheapest is option 3 with highest being option 1.
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Unread 05-06-2013, 08:41 AM   #4
jcoty
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does anyone know how to fix these? or have a link to an '04 wiring diagram?
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Unread 05-06-2013, 10:21 AM   #5
RnEmOvr
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Pick up a haynes or chilton manual. Both have very good decriptions on how to replace both parts.
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Unread 05-06-2013, 10:23 AM   #6
jcoty
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thanks for the reply. two more questions. in fixing the multi function switch would I have to remove the steering wheel? Would this pose issues with the airbag?
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Unread 05-06-2013, 10:29 AM   #7
Jerry Bransford
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There is no relay in the headlight circuit. The only realistic thing such a problem could be caused by is the multi-function switch which also serves as the headlight switch on later model TJs as yours is.

No, you don't have to remove the steering wheel to replace the MFS and don't worry about the airbag. Two screws on the bottom of the plastic that surrounds the trim around the steering column come out to uncover the MFS. Then only a couple screws hold it it, with a plug-in wiring harness. You should be able to replace it with nothing more than a phillips head screwdriver.
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Unread 05-06-2013, 10:32 AM   #8
jcoty
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Quote:
Originally Posted by Jerry Bransford View Post
There is no relay in the headlight circuit. The only realistic thing such a problem could be caused by is the multi-function switch which also serves as the headlight switch on later model TJs as yours is.

No, you don't have to remove the steering wheel to replace it. Two screws on the bottom of the plastic that surrounds the trim around the steering column come out to uncover the MFS. Then only a couple screws hold it it, with a plug-in wiring harness. You should be able to replace it with nothing more than a phillips head screwdriver.
Sounds good, thanks for the reply!
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Unread 05-06-2013, 10:35 AM   #9
gcrv01tj
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Quote:
Originally Posted by jcoty View Post
Hi all. I have an '04 TJ Sport 4.0 5speed that I just got a couple weeks ago so I'm still a bit new to TJ's. Anyways, I was driving today and all the sudden my highbeams indicator came on as did my headlights. I didnt turn them on or anything since it was still day light. I turned the car off but the indicator as well as the lights stayed on. I tried turning the lights on/off and pulling the highbeam switch but they wouldnt go off. I tried disconnecting the battery in hopes the gremlin would flee but to no avail. : any ideas as to what this could be and how to remidy the situation?
Thanks in advance
Mine just started doing the exact same this over the past week or two. I have yet to chase down the problem. Let me know if the MF switch is the problem. I have had to replace it many times for other problems like the fogs staying stuck on but never the highbeams like this time.
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Unread 05-06-2013, 10:39 AM   #10
Ironhead
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its really easy to replace the MFS. took me about 15 min.

got the part from autozone for $45
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Unread 05-06-2013, 01:31 PM   #11
RnEmOvr
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Quote:
Originally Posted by Jerry Bransford View Post
There is no relay in the headlight circuit. The only realistic thing such a problem could be caused by is the multi-function switch which also serves as the headlight switch on later model TJs as yours is.

No, you don't have to remove the steering wheel to replace the MFS and don't worry about the airbag. Two screws on the bottom of the plastic that surrounds the trim around the steering column come out to uncover the MFS. Then only a couple screws hold it it, with a plug-in wiring harness. You should be able to replace it with nothing more than a phillips head screwdriver.
I thought there was a relay for the high beams? I can't remember for sure as I added one when I did my upgraded lights and harness.
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Unread 05-06-2013, 01:42 PM   #12
Jerry Bransford
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Quote:
Originally Posted by RnEmOvr View Post
I thought there was a relay for the high beams?
Nope, there is no relay anywhere in the factory headlight circuit. At least neither my '97 nor my '04 TJ has a relay anywhere in the headlight circuit according to the schematic in the FSM. The only relay in the lighting circuit I know of is in the fog light circuit.
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Unread 05-06-2013, 01:49 PM   #13
TheBoogieman
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Quote:
Originally Posted by jcoty View Post
thanks for the reply. two more questions. in fixing the multi function switch would I have to remove the steering wheel? Would this pose issues with the airbag?
Here's a good writeup with pics.

http://www.jeepforum.com/forum/f11/w...7/#post6129430
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Unread 05-06-2013, 01:55 PM   #14
jcoty
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Originally Posted by TheBoogieman View Post
Is a '98 XJ the same as an '04 Wrangler?
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Unread 05-06-2013, 01:58 PM   #15
Jerry Bransford
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Originally Posted by jcoty View Post
Is a '98 XJ the same as an '04 Wrangler?
An XJ is a Cherokee & the '98 still used an old-fashioned pull-out headlight knob if I recall correctly.
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