Brake lights gone erratic... help!! - : Jeep Wrangler JK Forum
LinkBack Thread Tools Display Modes
post #1 of 4 Old 03-08-2015, 09:14 AM Thread Starter
Join Date: Mar 2011
Posts: 59
Feedback: 0 reviews
Brake lights gone erratic... help!!

As of the last week my jeeps wiring has gone erratic. I pulled the power terminal off of the battery last week and I thought it fixed it but I was wrong.

When I apply my brakes my front orange signal/marker lights light up. All my wiring is stock. It does it only when my headlamps are in the off position. Oh and my drivers side rear brake light is stuck in the bright position. I changed the bulb, no fix.

Any thing like this happen to anyone yet? Probable cause? Fix?

GlennH is offline  
Sponsored Links
post #2 of 4 Old 03-10-2015, 07:38 PM Thread Starter
Join Date: Mar 2011
Posts: 59
Feedback: 0 reviews

bump anyone?
GlennH is offline  
post #3 of 4 Old 03-10-2015, 07:49 PM
Rock God
Jonboy's Avatar
Join Date: Aug 2012
Location: NorCal
Posts: 829
Feedback: 0 reviews

Electrical problems suck, for sure. Have you installed anything that has tapped into any factory wiring?

Just for fun, I'd probably check that my battery was putting out 12V and isn't going out. Assuming that''s not the problem, it could be the TIPM going out.
Jonboy is offline  
Sponsored Links
post #4 of 4 Old 03-10-2015, 08:10 PM
Rock God
BigTB's Avatar
Join Date: Mar 2014
Location: NW OH
Posts: 1,138
Feedback: 0 reviews

I've seen really weird issues with lights like that when a ground is bad somewhere. I had a car that had a similar type of issue and the root cause was a corroded ground in one of the bulb sockets. When you get a bad ground power will often find it's way to a ground through other bulbs, through switches when they are in certain positions, etc.

I know that doesn't help much.

Good luck.

Edit: I would pay special attention to the ground of the light that stays in the bright position. It could be that if the ground is missing, instead of power going across the "dim" filament and to ground, it goes across both filaments, and grounds through a switch somewhere. Just a thought. That is basically what was happening on the car I worked on.

Also, when you apply the brakes, does the "stuck bright" light go off completely? That would support the bad ground theory.

Last edited by BigTB; 03-10-2015 at 08:16 PM.
BigTB is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the : Jeep Wrangler JK Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome