Wiring Issues - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 01-05-2009, 12:58 AM
Thread Starter
Join Date: Jan 2009
Location: San Diego CA, Tucson AZ
Posts: 2
kmoss150 is on a distinguished road
Question Wiring Issues

Hey guys/girls. New to the forum, like what I'm seeing so far, hoping to get some help on my rig. I have a problem with my electrical on my 1999 TJ. My battery died the other day and I had to get a jump. Hooked it up correctly and it started right away. Immediately after the jump, I started having some wiring issues with my lights.

-First I noticed that when I turn my left turn signal on, both the left and right signals will go off.
-Second, when I hit the brakes, the instrument lights light up but only if the headlights are not on.
-Third, the brake lights seem to always be on when the headlights are on. When I press on the brake, no other 'brake' lights come on. (Brake lights work fine when the headlights are not on)

The right signal works fine and so does the headlights / running lights.

I checked and replaced the fusses under the glove box but no improvement. Checked the fusses in the engine bay, and all are working. I also checked the tail light bulbs and they seem to be fine. Disconnected the battery, cleaned the terminals but same problems. Disconnected the negative terminal for 30 mins, (maybe reboot computers?)

Nothing has worked and I need your help! Wondering if anyone can help me with this, or have any ideas about where to start to find the problem. THANKS!

kmoss150 is offline   Quote
Old 01-05-2009, 08:03 AM   #2
rketr's Avatar
Join Date: Sep 2007
Location: San Antonio, TX
Posts: 870
rketr is on a distinguished road

Only thing in common with all that is that it is electrical. I've heard others in the past with similar problems. The answer (so far) has always been a bad ground or two (or three...).

Would suggest checking your primary grounds (should be one going from battery to engine and another going to the tub on the firewall). Would also check the cable bundle that comes out of the cab into the engine compartment (on the firewall above the clutch pedal). Mebbe some of those have gotten worn down.

Other than that its a lot of trial and error testing of the specific items you listed.

Good luck.

Originally Posted by tiny terror View Post
I curse like a drunk sailor
Obama -> The Presidency to Nowhere
rketr is offline   Quote
Old 01-05-2009, 09:41 AM   #3
Join Date: Oct 2008
Location: Fort Drum, NY
Posts: 388
speepdaedeesi is on a distinguished road
i have a similar problem im working the final bugs out.

light related issues.. not the same, but issues none the less. im going to update the tread in a sec. but here it is.


my thoughts are bad ground or two or three lol like rektr said.

my problem with the dash lights was a bad gound on the headlight switch. if you take your dash out youll see theres two connectors on the headlight switch. one big one on the back, and one black small one on top. the small one is the ground. all i had to do is take it apart and clean the connections.

also when you take your dash off check the metal peices under it for alot of surface rust. mine has it i guess from prev owner leaving the top off.

if you can remember which fuses were blown, you know where to start. if you cant use a multimeter (im still learning) find a friend who can and start looking for that bad ground.

dont do what i did and assume its a bad switch. i spend 30 bucks on a blinker switch and 30 bucks on a headlight switch only to return both lol.

get testing.
97 TJ, 4cyl, auto, bone stock, 86k miles.
speepdaedeesi is offline   Quote

just empty every pocket

Thread Tools

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Hard top wiring kit - Rear defroster always on JCS05Rubi TJ General Discussion Forum 5 09-16-2014 07:29 AM
2003 Hardtop to a 2000 TJ Wiring issues bullfrog TJ Tech Forum 2 12-17-2008 09:19 AM
wiring issues..... taylordog2 TJ Tech Forum 2 07-17-2008 11:37 AM
Engine swap wiring help needed 4.2 to XJ 4.0 89Islander YJ Tech Forum 8 04-05-2008 08:06 PM

All times are GMT -5. The time now is 03:34 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC
« Back

Enter your email address:

Delivered by FeedBurner