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Old 04-04-2014, 11:21 PM   #1
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Turn signal issue

Hey guys, I am having some issues with my turn signals. I put in LED tail lights and LED front turn signals and they blink really fast, so I ordered the resistors. Those have not come in so I haven't installed them...maybe it will fix my problem, but I doubt it.

The turn signals work when the headlights are off, but when I pull the headlight switch (headlights work fine) the turn signals no longer work. Both blinker lights on the dash panel come on... Then if I turn the the headlights off, the blinkers work fine.

I have replaced the headlight switch already.

Any ideas?

Thanks!

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Old 04-04-2014, 11:27 PM   #2
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Quote:
Originally Posted by JonCO View Post
Hey guys, I am having some issues with my turn signals. I put in LED tail lights and LED front turn signals and they blink really fast, so I ordered the resistors. Those have not come in so I haven't installed them...maybe it will fix my problem, but I doubt it. The turn signals work when the headlights are off, but when I pull the headlight switch (headlights work fine) the turn signals no longer work. Both blinker lights on the dash panel come on... Then if I turn the the headlights off, the blinkers work fine. I have replaced the headlight switch already. Any ideas? Thanks!
Are they inpro car ware tail lights? IPCW?

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Old 04-05-2014, 09:18 AM   #3
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They are the round 4" tail lights from the how to on this board.
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Old 04-05-2014, 09:42 AM   #4
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Sounds like a grounding issue to me...

Also why don't you use an electronic relay instead of putting resistors in?
The fast blinking is just because the LED lights don't pull that much amps and the standard relays are built the way to do that in order to indicate a broken bulb.
When you put an electronic relay in it, it doesn't care about the amps and the blinker frequency will be fine.
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Old 04-05-2014, 11:00 AM   #5
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If you have replaced your front side marker/turn signal lights with two wire LED's, they will not function like they did without further modification because the original two wire light did not have a designated ground, but rather used a floating ground through the opposite filaments on the front fender light.

The modification is to go to your local Radio Shack store and buy the following parts, then wire them up as shown in the picture. The ones I did, I enclosed in a couple of pieces of plastic tubing to protect the parts. You will also want to install a flasher relay made for LED lights that will eliminate the fast flash rate.

Jeep LED Front Marker/Turn Signal Light Modification Parts List

Radio Shack Numbers (quantity enough for two harnesses)

4 Rectifier Diodes #IN4004
2 560 Ohm ˝ watt Resistors #271-1116
3 Colors 18 gauge wire
Solder
Heat shrink
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Old 04-06-2014, 12:48 PM   #6
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If you have replaced your front side marker/turn signal lights with two wire LED's, they will not function like they did without further modification because the original two wire light did not have a designated ground, but rather used a floating ground through the opposite filaments on the front fender light.

The modification is to go to your local Radio Shack store and buy the following parts, then wire them up as shown in the picture. The ones I did, I enclosed in a couple of pieces of plastic tubing to protect the parts. You will also want to install a flasher relay made for LED lights that will eliminate the fast flash rate.

Jeep LED Front Marker/Turn Signal Light Modification Parts List

Radio Shack Numbers (quantity enough for two harnesses)

4 Rectifier Diodes #IN4004
2 560 Ohm ˝ watt Resistors #271-1116
3 Colors 18 gauge wire
Solder
Heat shrink
I have 3 wire LED's, Ground, Running, and Turn.

I cut my fenders and flares, so the only front signals I have are built into the headlight.



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Old 04-06-2014, 08:14 PM   #7
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Quote:
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I have 3 wire LED's, Ground, Running, and Turn.

I cut my fenders and flares, so the only front signals I have are built into the headlight.
Then disregard my post. I misunderstood the original issue. A new flasher relay made for LED's should slow them down.
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Old 04-06-2014, 08:40 PM   #8
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Then disregard my post. I misunderstood the original issue. A new flasher relay made for LED's should slow them down.
Thanks for all your help Water Dog.

I am not worried about the fast blinking, I have the inline resistors to fix that, which should be here tomorrow. I am concerned about the turn signals not working with the head lights on. They work fine while head lights are off, but if you turn the head lights on and try to use the turn signals they don't work. I am about to pull my hair out.
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Old 04-06-2014, 09:42 PM   #9
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Funky side marker wiring so the flash opposite turn signals combined with polarity sensitive led lights

Read about different wrangler flashing vs non flashing side marker lights in this link

http://www.danielsternlighting.com/t...rkerflash.html
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Old 04-10-2014, 11:02 PM   #10
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Just an update. The resistors fixed my problem. Everything is working now.

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