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Headlights won't dim


TJ Bosco

New Member
Joined
Sep 24, 2021
Messages
14
Location
New Mexico
I have a problem I didn’t find in searching:

I have a 2002 TJ Sport and my dim headlights don’t work. The high beams work and stay on when I click to dim beams. I did add LED headlights about four months ago and everything was working OK until recently.

I have checked out all the fuses and replaced the multifunction light switch and pinned out the switch and it is good. Another thing that happened is the hazard lights do not work either. The flasher in the steering column rapidly clicks with no lights when I attempt to turn on the hazards. My turn signals are working ok. I am not sure if these problems are related but it did happen at the same time. My TJ does not have a daylight module on the firewall. I don’t believe there is a relay for the high/dim lights as I couldn’t find it if it exists.

Has anyone had this before or have suggestions? Thanks.
 

Mudflat

TJ Enthusiast
Joined
Sep 15, 2020
Messages
367
Location
Lumberton, Texas
I have a problem I didn’t find in searching:

I have a 2002 TJ Sport and my dim headlights don’t work. The high beams work and stay on when I click to dim beams. I did add LED headlights about four months ago and everything was working OK until recently.

I have checked out all the fuses and replaced the multifunction light switch and pinned out the switch and it is good. Another thing that happened is the hazard lights do not work either. The flasher in the steering column rapidly clicks with no lights when I attempt to turn on the hazards. My turn signals are working ok. I am not sure if these problems are related but it did happen at the same time. My TJ does not have a daylight module on the firewall. I don’t believe there is a relay for the high/dim lights as I couldn’t find it if it exists.

Has anyone had this before or have suggestions? Thanks.
Yes! I replaced my stock headlights with Pro Comp LED headlights (I don’t remember the model number) & they we’re great until I experienced the same problem you just described. I was afraid that I might have had a relay that had gone bad or something. I bought them at my local 4 Wheel Parts store & I have become pretty good friends with the guys over there so I stopped by to ask them if they had any ideas. They told me that Pro Comp had made a bad batch of these lights that had this problem & that they would replace them free of charge. 4 Wheel Parts even installed the new lights for free.
Even if you don’t have Pro Comp lights you might ask if there might be some kind of recall or something.
Good luck & let us know how this works out for you.
 
OP
TJ Bosco

TJ Bosco

New Member
Joined
Sep 24, 2021
Messages
14
Location
New Mexico
Yes! I replaced my stock headlights with Pro Comp LED headlights (I don’t remember the model number) & they we’re great until I experienced the same problem you just described. I was afraid that I might have had a relay that had gone bad or something. I bought them at my local 4 Wheel Parts store & I have become pretty good friends with the guys over there so I stopped by to ask them if they had any ideas. They told me that Pro Comp had made a bad batch of these lights that had this problem & that they would replace them free of charge. 4 Wheel Parts even installed the new lights for free.
Even if you don’t have Pro Comp lights you might ask if there might be some kind of recall or something.
Good luck & let us know how this works out for you.
I found the problem. Under the cable protector the high beam was shorted to the dim beam. Time for some new connectors.

Wiring.jpg
 

Jodh

TJ Enthusiast
Joined
Feb 18, 2019
Messages
222
Location
Dallas
Looking at your pic you should fix that white wire with the yellow connector too.
Curious what happened to the wire insulation on the headlight connector?