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Issue with custom tail lights.

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Old May 5, 2010 | 03:08 PM
  #1  
Swamp Donkey's Avatar
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Default Issue with custom tail lights.

I just recent fab'd up my own tail light boxes. i cut out 2, 4" round holes on each one for tail/reverse along with a 2" hole on the side for a marker light. Alot like the JCR tail light boxes but i put my marker light holes down toward the bottom. Anyways, what my plans are, is one tail light on each side to operate the turn/stop/signal and the lower 4" hole im gonna use for a 4" LED reverse light. Ive wired these tail lights up every which way possible i can think, tail lights work, turn signals work and brake lights work, but.... if you turn on the turn signal and hit the brake, it pauses and causes the blinker to stop working. Yea i relize Jeep has a seperate turn and stop circuit, ive tryed wiring around that and also the tail lights i were using are standard 3-prong with the stop/turn are on the same circuit. Does anyone on here know how to go about this to where it will work? Ive tryed everything with no luck and to the point im discouraged. Someone had even installed a tail light converter in it that plugs and plays, i tryed even wiring these lights up through it, still the same thing with the signal light pausing. If anyone on here knows how to fix this issue, please let me know because i have alot of time and money invested in this for nothing it seems. Im not a electrical wize but do have common sense when it comes to it. Any help or advise will be greatly appreciated.
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Old May 5, 2010 | 03:39 PM
  #2  
ehudpower's Avatar
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From: Grand Rapids, MI
Year: 1989
Model: Cherokee
Engine: 4.0L Straight 6
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Originally Posted by Swamp Donkey
I just recent fab'd up my own tail light boxes. i cut out 2, 4" round holes on each one for tail/reverse along with a 2" hole on the side for a marker light. Alot like the JCR tail light boxes but i put my marker light holes down toward the bottom. Anyways, what my plans are, is one tail light on each side to operate the turn/stop/signal and the lower 4" hole im gonna use for a 4" LED reverse light. Ive wired these tail lights up every which way possible i can think, tail lights work, turn signals work and brake lights work, but.... if you turn on the turn signal and hit the brake, it pauses and causes the blinker to stop working. Yea i relize Jeep has a seperate turn and stop circuit, ive tryed wiring around that and also the tail lights i were using are standard 3-prong with the stop/turn are on the same circuit. Does anyone on here know how to go about this to where it will work? Ive tryed everything with no luck and to the point im discouraged. Someone had even installed a tail light converter in it that plugs and plays, i tryed even wiring these lights up through it, still the same thing with the signal light pausing. If anyone on here knows how to fix this issue, please let me know because i have alot of time and money invested in this for nothing it seems. Im not a electrical wize but do have common sense when it comes to it. Any help or advise will be greatly appreciated.
Let me get this straight you redid the wiring for all the lights that are in the back? Is it all new wires or did you just disconect the plug from the back? Also not 100% sure but your prolly better off wirging back up lights into a switch on the dash or something like you do with fog lights. But maybe if you show pictures if u can we can understand it better!!
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Old May 5, 2010 | 04:42 PM
  #3  
96_xj's Avatar
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From: Gilbert AZ/Las Cruces NM
Year: 1996
Model: Cherokee
Engine: 4.0 upgraded
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why could you just not tap into the original wiring harness? and i think might be happing is if you are wiring the brake AND turn signal lights thru the same light they may be canceling each other out.

say you have 2 circuits connected to one light, circuit a and circuit b:

circuit A is blinking so it is a pulse relay.
circuit B is your brake lights so a continuous relay.

When you are operating your pulse circuit/relay and then you operate your continuous relay through the same light it is in theory combining both relays/circuits as one. And the pause you are talking about is that the pulsing relay has constant power to it causing it to stay on, then the replay goes into a "limp" mode and shuts off as a protection thing but your brake light is still staying on because it is the one giving the constant power.
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Old May 5, 2010 | 08:34 PM
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No i did not redo any wiring to the back, i tapped straight into the main wiring harness going to the tail lights. i wired everything up diffrent ways and nothing ever made sense, i even wired in another whole tail light converter. it would get fire to the converter, make the tail lights burn but then no fire to the blinkers would go through it out to the lights. All i know is im gonna have to find a LED light that has stop and turn on diffrent circuits, but the only lights i have ever seen are the standard 3 prong lights like i have. But what doesnt make sense also is, i wired these lights up through the converter, just as if they were on a trailer, like its supposed to, and it still didnt work. All i can say is, Chrysler has one F*cked up wiring setup just like Nissan does, had some of the same issues with my pickup when wiring it up for trailer lights.
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