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Topic Review (Newest First)
07-10-2011 11:17 AM
kirnzy okay so its being slowly but surely fixed. i had a family mechanic work on it all day yesterday and he made a make shift fuse when he put it in the box it heated up and melted the wire that was causing the issue. after that he fiddled around with some extra wire and got my running lights and reverse lights working but the brakes would still blow the fuse. hes gonna be working on it later this week ill let you know how it goes. i know some of you must be disappointed that i didnt work on it myself but i literally work all the time and honestly dont have the time to fix it, i have plenty of patience but no time.
07-08-2011 04:52 PM
kjeeper10 Man that stinks. Can't wait to see what is turns out to be
07-08-2011 02:02 PM
kirnzy okay guys i disconnected the third light and checked there is no damage. with the third light disconnected i put a fuse in and sure enough it still blew. my running lights, which i just found out, are not working either i put a fuse in to replce the running lights and that fuse blew as well. i also checked everything envolving the tail lights, the connectors are fine the wires are fine and there are no blown bulbs. on my 04 the driver side feeds the passenger side. should i take the shield off main wire running to the back and check the wires in there? alos my hazards and blinkers work as well as my headlights but no other lights work on the exterior of my jeep.
07-07-2011 03:25 PM
kirnzy
07-07-2011 02:34 PM
jeepjones I love working on electrical faults, too bad I live so far away from you. Look for pinched,corroded,melted and broken wires. Good luck.
07-07-2011 02:31 PM
TnDz TJ
Quote:
Originally Posted by kirnzy View Post
oh and TnDz TJ would you mind dumbing that down for me lol. im fairly smart in areas other then electronics and engine repair thank you

Sure.... you said it blows when brakes are applied.... this means that you have a short to ground on the hot lead feeding the tails and the 3rd light above your spare.

Start at the the 3rd light as suggested. Inside the tailgate is a small plastic cover with two metal contacts that contact two identical ones when the tailgate is closed. Pull the cover off the tailgate and expose the connectors that feed the third light. pull those connectors off the leads and fish them out of the tail from the outside. INSPECT every inch of those two wires for exposed wires(insulation breeched), pinched or damaged areas. Any of this could be your problem if there is a breech and rubbing the tailgate somewhere.

If that all looks good.... move to the tail lights

Since your running lights should still work, disconnect the leads under the body, just under the each tail light. Should be a 3-4 wire connector on each side. On my 04.. the passenger side feeds the driver side. I know this because this is where you integrate and trailer wiring harness with a T connector.

Start there with what you KNOW works... running lights or turn signals... etc....

Use a light probe or meter.... I like the light probe to test hot leads... meters for grounds.

Isolate your known GOOD circuits then check whats NOT working to ground... if you have more than one wire making continuity to ground, you are that much closer to find the root cause.

check the harnesses carefully for cuts breaks pinches in those areas.

Like I said.... can be a long painful process... but worth it to find on your own if you can.... diagnostics can be a wallet burner!!!

I'm hoping not to confuse you.... trying hard to help!
07-07-2011 10:54 AM
kirnzy oh and TnDz TJ would you mind dumbing that down for me lol. im fairly smart in areas other then electronics and engine repair thank you
07-07-2011 10:52 AM
kirnzy only a soft top that i keep on year round. the fuse blows when i step on the brakes. my friend even put in a 30amp fuse and it still blew it.
07-07-2011 06:36 AM
TnDz TJ Does the fuse blow as soon as you put it in... or when you hit the brake?

Pull your leads from each light and check continuity to ground on the hots. Sounds like a bare hot lead contacting ground, shorting the circuit.

Chasing shorts/opens can be a long, drawn out process that can require lots of patience ( and lots of choice beverage).... gotta start somewhere....

Good luck!
07-07-2011 06:19 AM
Palmers2000tj Do you have a top you recently took off or put on? might have pinched a wire and ground it out.
07-06-2011 07:42 PM
kirnzy trail lights in the front which i dont have wired anywhere near any of my brake light wires.
07-06-2011 11:55 AM
kjeeper10 It was something with the contacts for the 3rd brake light. It wasn't making contact or something. I just ripped it out cause I was sick of popping the fuse. Good now like I said
07-06-2011 11:24 AM
TJWenatchee X2. I suspect you have a short someplace.
07-06-2011 11:24 AM
JeepnJim Sounds like a bare wire somewhere or it's pinched somewhere. Have you done any mods lately?
07-06-2011 11:23 AM
kjeeper10
Quote:
Originally Posted by kirnzy
My 04 tj is broke and i need help as to how to fix my rear brake lights. all three of my brake lights dont work and when i replace the fuse it blows everytime my friends say its some thing involving a ground wire but thats all they say and do. any help would be greatly appreciated thanks all
Mine were doing the same. You have a short some where. I disconnected the 3rd light and all is well now. Well except I don't have a 3rd light
07-06-2011 10:55 AM
kirnzy
Serious help!

My 04 tj is broke and i need help as to how to fix my rear brake lights. all three of my brake lights dont work and when i replace the fuse it blows everytime my friends say its some thing involving a ground wire but thats all they say and do. any help would be greatly appreciated thanks all

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