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Old 07-03-2011, 05:36 AM   #1
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2008-11 Tailight Wiring Diagram?

Does anyone have a copy of the 2008-11 tail light wiring diagram? I got a set of the LED tails, and I want to wire it up like one of the other members on here. Here is a picture of his car that he posted in another thread:



I want the outer rim of LEDs to remain on whenever the parking lights/headlights are on, and ONLY have the central LEDs light up when the brake is pressed/turn signal activated. As it stands, everything is lit up when the parking/headlights are on, as such:



I've tried contacting the owner of the above Focus, but with no luck. Any ideas?


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Old 07-03-2011, 10:37 PM   #2
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From what I can tell from the wiring diagram, you have 3 wires coming into the main taillight housing(excluding the backup light)
Diagram for a 2011 Focus SE I can try to post pictures if needed.
Black/White - looks to be a ground between both of the tail lights
Violet/orange - Stop/turn signal
Violet/White - Park that goes to a relay from the battery.

I'm guessing that the Violet/White is the parking light. I have never taken the stock tail lights out and looked at the connectors or seen the LED's in person, but from the picture it looks like it is only 1 connector for both sets of LED's. It looks like it goes in to 1 set, out to a box(resistor?)and back into the 2nd set. I would think that you would have to take the whole assembly apart, cut and splice the wire to bypass that cluster assuming that it is on a different circuit. You don't want to just cut it because you would loose your tail lights, and your License plate lights.

Seeing as how I have never even looked at how their hooked up, I could be wrong, so take my post with caution and I wouldn't do anything without a second opinion.

Hope this helps because I want to know how to do it too.
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Old 07-04-2011, 11:05 AM   #3
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^^Incredible first post!

Another option is to get a multi-meter and test which wire is hot when the running lights are on.
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Old 07-04-2011, 11:09 AM   #4
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Agreed on both. I might get a chance to use my multi-meter this afternoon just to verify, but if not, I'll have to wait until next weekend.

I took a look at the insides of the lamp without removing any plastic, and it looks like I may have to cut the parking/headlight wire connected to the central lights, and reconnect it just to the outer rim LEDs.

We'll see what I can find!
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Old 07-04-2011, 08:09 PM   #5
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Mine are done like that too. I cut a hole in the LED housing and disconnected the wires inside that light up the center LEDs dimly.
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Old 07-05-2011, 06:01 AM   #6
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Quote:
Originally Posted by andrewsfm View Post
Mine are done like that too. I cut a hole in the LED housing and disconnected the wires inside that light up the center LEDs dimly.
So are there two independent wires inside the housing that control the parking/headlight dim lighting (one to the large cluster, one to the outer rim)?

Or did you have to cut the wire before the large cluster and reconnect it right before the outer rim?
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Old 07-08-2011, 09:40 PM   #7
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Come baaaaack andrewsfm!
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Old 07-21-2011, 10:15 PM   #8
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Alright, I'm going to cut into one of these on Saturday...hopefully it goes well. Any more guidance people can give me before hand would be awesome!
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Old 07-22-2011, 08:20 AM   #9
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if you figure it out, do a write up. Im highly interested in this DIY mod on the led taillights.
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Old 07-22-2011, 08:39 AM   #10
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Quote:
Originally Posted by Slammed_2.0 View Post
if you figure it out, do a write up. Im highly interested in this DIY mod on the led taillights.
You can count on it! If I can figure it out, I'll definitely be sharing via plenty of pictures and explanations.
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Autobots decal over Ford emblems
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