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Unread 06-02-2014, 06:28 PM   #1
drsouce411
Registered User
2006 KJ Liberty 
 
Join Date: Oct 2007
Location: Wells, Maine
Posts: 58
06' Trailer Light Problems

I have a 2006 Sport with an aftermarket (Hopkins) plug n play trailer light harness installed last year, that has been pretty much trouble free. Noticed the other day that I have no brake lights on the left side of the trailer, as well as no left turn signal. All other lights are fine (running lights left and right, marker lights, right brake light, all lights on vehicle function as they should). Just no left brake/turn. Crawled under to discover the wire leading from the harness to the rear of my jeep had at some point brushed the exhaust and melted through the wires. I cut the wires, and spliced in a new section as well as new connector and thought that would take care of it. I was wrong. Problem still persists.

I'm not new to wiring issues, and in my experience when you have weird symptoms like this 99% of the time it's a ground issue. Tried another trailer which I know the lights work 100% and duplicated the same issues, so I've isolated it to my jeep being the problem.

Checked the ground wire from the harness (where it T's off the factory tail light harness behind the panel in the rear of the jeep) and that is good. Everything seems normal. Checked the fuse panel in the cabin and all fuses seem to be normal. Am I missing something? This has got me stumped! I've checked everything I know to check short of just buying a new plug-n-play T harness and starting fresh.

Is it possible when the exhaust melted the wires it shorted something out and fried the harness unit or a relay somewhere? I'm at a loss. Any and all input is MUCH appreciated.

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Unread 06-02-2014, 06:46 PM   #2
skiwee75
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2004 KJ Liberty 
 
Join Date: Apr 2013
Location: nekoosa, wisconsin
Posts: 31
Had something similar happen to me bought a new box wiring harness on eBay for 45bucks and it fixed the problem
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Unread 06-02-2014, 09:00 PM   #3
jp7794
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2006 KJ Liberty 
 
Join Date: Jul 2008
Location: MO
Posts: 319
Quote:
Originally Posted by drsouce411 View Post
Is it possible when the exhaust melted the wires it shorted something out and fried the harness unit or a relay somewhere?
Very possible. The good news is that you won't have to run all new wiring. Just replace the box.
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Unread 06-02-2014, 10:30 PM   #4
skiwee75
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2004 KJ Liberty 
 
Join Date: Apr 2013
Location: nekoosa, wisconsin
Posts: 31
Your trailer light box got shorted out
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