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XJ Rail Sale!The Ruffstuff NOT Universal 4 Link Kit!Vanco Big Brake Kit Promotion!

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Unread 03-24-2013, 11:03 AM   #1
mpatch
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1989 FSJ Wagoneer 
 
Join Date: Feb 2012
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Wiring Harness

My fog lights - radio - reverse lights - air cond. and probable rear defroster dont work. Would you recommend tracing the wires to find the problem or biting the bullet and buying a wiring harness from BJs or some other place. Does anybody have experience in wiring or working with the harness. Would this solve some of my problems? Easy to work with? Ect?

Thanks,

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Unread 03-24-2013, 11:46 AM   #2
revelc
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Check fuses. Check grounds. Check power. Check bulbs. All cheap/free items to check. Then if that doesn't work you can write a check.
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Unread 03-24-2013, 11:50 AM   #3
pleontks
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How much money do you have? If you can afford it, it's better just to buy a new one, and you're good for another 30 yrs. I can't afford it, so I trace and replace. I recently did a fsj engine wiring harness from scratch. It was pretty easy.

I'd check your fuses and fusible links, first. Then I'd see if there was power at the fusebox for those accessories, and then start tracing based on that. (either towards engine, or through the cab)
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Unread 03-24-2013, 12:53 PM   #4
RockRollin
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I agree with the others on this. First see if things are plugged in, have power, fuses good, fusable links. Keep in mind the headlights have to be on for the fog lights to work.... yea guess how I know?
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Unread 03-24-2013, 02:27 PM   #5
mpatch
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Thanks guys. Have people find they need to undo some of this wires not to short out others or drain the battery? Just wonderimg why so much doesn't work.
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Unread 03-24-2013, 03:38 PM   #6
revelc
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Quote:
Originally Posted by RockRollin
I agree with the others on this. First see if things are plugged in, have power, fuses good, fusable links. Keep in mind the headlights have to be on for the fog lights to work.... yea guess how I know?
X2

Also bear in mind that fuses usually don't blow on their own. They usually indicate a wire grounding out, short, or a surge.
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Cherokee Rebuilt 360, 2" Duals, mostly stock. SOON: Hot Street 401, 4'' Rustys, 33" BFG A/T's maybe a T-case to get rid of Q-Track <-TOW RIG
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Unread 03-24-2013, 04:01 PM   #7
timgr
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Unless you've had a fire or other catastrophe, just fix it.

Considering replacing the harness because a few circuits don't work is a gross over-reaction.

Do you own and can you use a multimeter? Can you read the wiring diagram? If not, now's the time to learn.
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Unread 03-26-2013, 08:40 PM   #8
dbabicky
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I kind of take a different route. I replaced the complete harnesses in my 70 Bronco and my 81 CJ-5, best thing I ever done. I plan on doing it to my 75 J-10 and my 78 Chief.
Be honest with yourself and look at the age and type of wiring you have in these rigs. The new harnesses are made of far superior wire and shielding and it isn't all dry and brittle.
I used a Painless in the Bronco and a Centech in the CJ. I prefer the Centech out of the two. I'm probally gonna go with EZ-Wiring for the next two. $200.00 and you get a complete 21 circuit harness.
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Unread 03-26-2013, 11:22 PM   #9
super98lsc
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if the switches are the culprit or the wires from the main harness into the foglights then the new harness won't fix it. I do agree that a new harness is nice and if your aren't good with electrical work then it may be a cheaper option. Especially if a previous owner hacked it all up with bs "repairs". If you have the skills the items your mentioning should be easy to trace and fix.
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