Brake and tail light working intermittently. - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 3 Old 08-04-2017, 03:02 PM Thread Starter
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Brake and tail light working intermittently.

The lights work sometimes. Most of the time it is just the right side that stops working. The dash tells me when the light is out and the front flashes faster. When this happens the brakes lights don't work either. I have checked the fuse it ok. The bulbs are new and sockets look nice and clean. I have where is the flasher is now a part of the instrument cluster. The third brake light over the tire works at all times
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post #2 of 3 Old 08-07-2017, 10:51 AM
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Sounds like a grounding issue. I can't remember off the top of my head where the harness grounds to the body, but pull each taillight out and find where the black wire has a ring terminal on a screw in the body. Pull that screw, wire brush everything, re-attach, and cover with dielectric grease.

Chase

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post #3 of 3 Old 08-07-2017, 02:06 PM
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Quote:
Originally Posted by Jeepin it View Post
The lights work sometimes. Most of the time it is just the right side that stops working. The dash tells me when the light is out and the front flashes faster. When this happens the brakes lights don't work either. I have checked the fuse it ok. The bulbs are new and sockets look nice and clean. I have where is the flasher is now a part of the instrument cluster. The third brake light over the tire works at all times
I don't know what fuse you checked that you found to be OK, but the brake/blinker lights have no fuse.

The flasher isn't part of the instrument cluster. In fact, there is no flasher. It's all controlled with MOSFETs inside the TIPM. The noise you here is a mechanical relay in the cluster whose only function is to make the sound you expect to hear when you activate the blinkers.

With that out of the way...

When one side quits working, does the blinker and brake light still work on the other side?

2008 Unlimited Rubicon Automatic
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