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Old 10-25-2011, 03:07 AM   #1
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need help converting taillights to red/red

Hi All,

Adam here from New Zealand. I'm looking at importing some tail lights from Michigan that are 3" LED in red.

They are a 3 wire system with a ground, a dim and a bright wire.

I am wanting to wire them so that I can have American style red/red indicators, currently I have amber indicators and red brake lights.

I am wondering how I would go about wiring them (presumably with a relay) so that they flash red when I indicate but also work as brake lights.

Can anyone help with wiring instructions?

thanks

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Old 10-25-2011, 07:30 AM   #2
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3 to 2 Wire Converter [58240] - $10.80 : The Hitch Store
give that link a shot. that should be all you need.

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Old 10-25-2011, 07:43 AM   #3
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You're also going to need a flasher relay that is set-up for LED lights. I don't see how the product above will help with set-up of your taillights. You won't need that. There are some write-ups on here that others have posted to aid with installing your new LED taillights.

Here is a link to one that should help:
http://www.wranglerforum.com/f5/led-...on-115805.html

If they are strictly brake/tail light LED's you'll only use two of the three wires that are on the vehicle harness. You will not use the reverse wire. You'll have to figure out which wire is brake/turn signal wire and which one is the running light wire.

Wire the brake/turn signal wire to the bright wire on your LED tail light and the running light wire to the dim light wire on your LED tail light. The ground wire is simply run to the body or frame. Don't forget that the right side tail light runs off of the harness on the left side.

Now keep in mind this write-up is for an American Jeep. I'm not sure if the main tail light harness will be on the right or left hand side of the vehicle for you.
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Old 10-25-2011, 07:57 AM   #4
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Ive never understood the 3 to 2 wire conversion. My leds were simple splice and go. The "bright" wire is also your turn signal.
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Old 10-25-2011, 08:11 AM   #5
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This diagram should help as well. It is for an exported Jeep.
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Old 10-25-2011, 08:27 AM   #6
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I have 3 wire LEDs on my bike. one wire is ground. one is low LEDs for your tail light. the other is High LEDs for your turn/brake light. It should be as simple as connect the wires, but I don't know if your wireing harness is different because our brake and turn signal use the same bulb and are controlled by something, I'm not sure if its the way its set up or what not.
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Old 10-25-2011, 10:15 AM   #7
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Quote:
Originally Posted by Peepers
I have 3 wire LEDs on my bike. one wire is ground. one is low LEDs for your tail light. the other is High LEDs for your turn/brake light. It should be as simple as connect the wires, but I don't know if your wireing harness is different because our brake and turn signal use the same bulb and are controlled by something, I'm not sure if its the way its set up or what not.
Its no different at all.
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Old 10-25-2011, 10:24 AM   #8
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Originally Posted by freeskier View Post
Its no different at all.
I ment that because he has separate brake and turn signals if he just hooked both wires to the bulb the constant brake power would wash out the turn signal when they are used at the same time. I'm not sure how that is set up or if its anything different.
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Old 10-25-2011, 10:32 AM   #9
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Quote:
Originally Posted by Peepers View Post
I ment that because he has separate brake and turn signals if he just hooked both wires to the bulb the constant brake power would wash out the turn signal when they are used at the same time. I'm not sure how that is set up or if its anything different.
Good point! I didn't even notice that when looking at the wire diagram.
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Old 10-25-2011, 10:40 AM   #10
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Quote:
Originally Posted by Peepers

I ment that because he has separate brake and turn signals if he just hooked both wires to the bulb the constant brake power would wash out the turn signal when they are used at the same time. I'm not sure how that is set up or if its anything different.
Yeah sorry, Im on my phone and keep doing short and sweet posts. I thought about that, if turn is amber, brake must be separate unlike ours that use one wire for turn and brake. The problem i foresee is because turn and brake are not on the same circuit, if you were to just combine the two wires, when you put the turn signal on and press the brakes you aren't going get any flashing because the brake wire is still sending power.
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Old 10-25-2011, 12:11 PM   #11
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I wonder if an american spec multi-function switch would be plug and play.....
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Old 10-25-2011, 12:17 PM   #12
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Just go to this link and do whatever it tells you to, it's a no brainer: LED Flush Mount Tail Lights - 1
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Old 10-25-2011, 01:05 PM   #13
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Originally Posted by jeepjones
Just go to this link and do whatever it tells you to, it's a no brainer: LED Flush Mount Tail Lights - 1
I don't think you understand what the problem is here. If his turn signal is amber the brake and turn signal have to be separated. Unlike ours which is one wire. Its also not as simple as combining the two wires.

OP, some pics would be helpful. I've never seen a TJ with an amber turn signal in the back and it would be helpful to see what it looks like. What i have in my head is a clear housing lens with separate red and amber bulbs.

If that is the case then yes, you need to use relays that shut off the brake light feed when turn signals are on. One for each side. Would probably be simpler though to just wire in some separate amber signals.
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Old 10-25-2011, 02:40 PM   #14
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Quote:
Originally Posted by freeskier View Post
I don't think you understand what the problem is here. If his turn signal is amber the brake and turn signal have to be separated. Unlike ours which is one wire. Its also not as simple as combining the two wires.

OP, some pics would be helpful. I've never seen a TJ with an amber turn signal in the back and it would be helpful to see what it looks like. What i have in my head is a clear housing lens with separate red and amber bulbs.

If that is the case then yes, you need to use relays that shut off the brake light feed when turn signals are on. One for each side. Would probably be simpler though to just wire in some separate amber signals.
some people clicked on to what I meant, others didnt.

I have an exported jeep - which means I have very different tail lights, I have 3 bulbs, one STOP/TAIL, one directional and one reverse. 3 chambers in the truck lights and a set of wires for each. I think it will have to be done with a relay behind each tail light plus some resisters to calm the signal relays down.

Filmed the below on a cellphone so sorry 4 crap quality
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Old 10-25-2011, 02:47 PM   #15
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Relay Basics this is doing my head in already... must ... read ... slowly.
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Old 10-25-2011, 03:49 PM   #16
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so basically I need a wiring diagram for this: 3 Wire to 2 Wire Trailer Tail Light Converter | eBay or just buy one and install them behind rear guards.
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Old 10-25-2011, 03:55 PM   #17
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Quote:
Originally Posted by Mrmikeypoo View Post
3 to 2 Wire Converter [58240] - $10.80 : The Hitch Store
give that link a shot. that should be all you need.
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Old 10-25-2011, 05:20 PM   #18
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Yep, that looks like a nifty device and much simpler than relays and trying to hunt down wires for said relays. It would probably be best and out of harms way if you splice that device into the wiring loom inside the jeep right where the wiring loom goes through the fender or under the steering column. In fact you can easily unplug the rear wiring loom from under the steering column very easily, it's what I did when lining the inside of my tub. Then you can easily work with the wires and your not in awkward positions.
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Old 09-14-2012, 12:53 PM   #19
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Hi, This is an old thread but I ran into the same situation now (Sept 2012) Am a Yank living in England. Bought a 2003 TJ Sport, and ordered some HID headlamp bulbs and IPCW Crystal Eyes from the US>
Easy solution on the tail lights. Popped two small holes under each light and got Hella amber signal lights for the 'extra' light we have here in export land and all works perfect. The Led tail lights rock. Looks great.
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Old 09-14-2012, 02:00 PM   #20
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