02 Turn Signal Tail Light Wires to Splice for LED Load Resistor? - JeepForum.com
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Unread 05-08-2014, 12:55 PM   #1
brendanc
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2002 KJ Liberty 
 
Join Date: Jul 2009
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02 Turn Signal Tail Light Wires to Splice for LED Load Resistor?

As the title suggests, I'm trying to find out if anyone knows which wires specifically are linked to the tail light turn signals?

The wiring harness has 5 or 6 wires, I believe, but I don't know which ones go to the turn signals. I need to splice into those to connect my load resistors so that I can install my LED turn signal bulbs, otherwise I get the dreaded hyperflash.

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Unread 05-09-2014, 10:00 AM   #2
Billwill
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Originally Posted by brendanc View Post
As the title suggests, I'm trying to find out if anyone knows which wires specifically are linked to the tail light turn signals?

The wiring harness has 5 or 6 wires, I believe, but I don't know which ones go to the turn signals. I need to splice into those to connect my load resistors so that I can install my LED turn signal bulbs, otherwise I get the dreaded hyperflash.
Can you not open up one of the rear plastic turn/stop/reverse/tail-light assemblies and physically see which color wires go to the turn signals?

Should be Brown/Red on the right and Dark Green/Red on the left!
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Unread 05-09-2014, 10:03 AM   #3
brendanc
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Originally Posted by Billwill View Post
Can you not open up one of the rear plastic turn/stop/reverse/tail-light assemblies and physically see which color wires go to the turn signals?

Should be Brown/Red on the right and Dark Green/Red on the left!
I wanted to avoid disassembling the housings. Also didn't think that the wiring inside the housings would match the wiring harness

Thanks though!
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Unread 05-13-2014, 03:01 AM   #4
Billwill
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Originally Posted by brendanc View Post
I wanted to avoid disassembling the housings. Also didn't think that the wiring inside the housings would match the wiring harness

Thanks though!
They generally keep the same wire colors for a particular circuit the same, all the way from the BCM for example, through a couple of connectors, maybe splitting up a few times until it gets to the end component.

Makes it quite useful for tracing when a voltage goes missing.....you measure wire Yellow/Black for example at its source and get voltage. Now you measure the same color wire at its destination and the voltage is missing. So now you go halfway until you find the break.
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Unread 05-13-2014, 04:46 PM   #5
brendanc
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Yeah I double-checked the FSM and you were correct. I triple-checked with the audio function on my multimeter with each turn signal engaged. Beep beep beep beep!

Got everything sorted out and have 100% LED lights in the rear now.
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