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2015 Aux Reverse Light Wire

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Old Apr 6, 2015 | 11:39 AM
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2015 Aux Reverse Light Wire

Hi All
Any one have a diagram or know which wire to tap so I can trigger/run my aux back up light? I tried tapping the existing wire behind the tail light and it didn't work, made the truck do funny stuff like killing the ignition. I had read on here on white knights web site that on the newer trucks you cannot use the back up circuit from the seven pin so I didn't try that. I don't have up-fitters and really didn't want to run a wire to the front but will if that is the best solution.
Thanks in advance.
 
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Old Apr 6, 2015 | 08:11 PM
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Center wire in trailer plug. This is what Ford officially recommends.

I am using it for my backup camera.

You cannot use the blue reverse wire inside the cab as the BCM will see an over voltage and throw a fault.
 
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Old Apr 6, 2015 | 11:29 PM
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Not sure who the white knights are but rutherk1 is right on with the center contact.
 
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Old Apr 7, 2015 | 06:53 AM
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White Knight sells a 7-pin adapter plug. It's a quick plug & play solution to power their backup light and trailer plug-in is unimpeded.


Sorry for the grainy photo
 
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Old Apr 7, 2015 | 08:45 AM
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Thanks guys
I will try the center wire this weekend when i can get back to it.
 
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Old Apr 7, 2015 | 08:59 AM
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rutherk1
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Originally Posted by gasman6674
Thanks guys
I will try the center wire this weekend when i can get back to it.
Good luck. I simply followed up the wire from the trailer plug on my truck and pulled back the wire loom. I cut the wire, stripped both ends, and soldered in my wire so all had a nice solid soldered connection. I then wrapped everything up in harness tape.

If you are planning to do a bunch of reverse lights, you should run a wire from the battery to a relay then have the relay connected to the backup wire but if you are just doing a single LED light or something like that, this should work fine.
 
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Old Apr 7, 2015 | 09:03 AM
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I am just going to hook up a single "fog light" that I have had laying around to get some extra light. I should of ordered a back up cam but live and learn.
 
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Old Apr 14, 2015 | 08:10 AM
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Update
I tapped into the center wire on the 7 pin under the bumper and all is well. Thanks to all for the info.
 
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Old Apr 14, 2015 | 08:20 AM
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Originally Posted by RightWingNutJob


White Knight sells a 7-pin adapter plug. It's a quick plug & play solution to power their backup light and trailer plug-in is unimpeded.


Sorry for the grainy photo
there adapter does NOT fit the ford 7way plug- dont buy it,

trust me i bought one for my 2012 f350 and it doesnt fit
and im stuck with the stupid thing,

so i bought a replacment 7way plug and fed the wires into that,
and it works fine
 
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Old Jan 25, 2021 | 12:39 PM
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Originally Posted by r2millers
Not sure who the white knights are but rutherk1 is right on with the center contact.
when you tap into the middle wire. Did you run a negative wire back to the battery?
 
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Old Jan 25, 2021 | 10:49 PM
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Originally Posted by Bradford Evens
when you tap into the middle wire. Did you run a negative wire back to the battery?
Just tap into the ground wire (#1) at the plug.



 
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