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LED tailgate light bar installed (harness wiring diagram attached)
BigOleOgre
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Yes, just match the input/outputs and make sure your using the schematic OP posted to connect.
BigOleOgre
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Full functioning, with fun help from the 8yr old. The brake light does work hard to tell change in brightness with the phone camera.
The one i got was quite bulky with the extended cable to zip tie and mount up out of the way. It does fit all bundled up, but if you want to look into similar trailer light converter harness that is LED compatible, with less connector length, it would probably be easier and fit better.
White willy
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BigOleOgre
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Reference post #43, used an LED compatible trailer light converter, basically a harness you can use to connect the light bar to the tail light connectors underneath the bed. The converter combines the brake and turn signal into 1 line without feedback to rest of system.
superj
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I have an opt7 tailgate light bar i need to figure out how to hook up. Its got a flat 4 plug in it and a white wire that appears to go to something. I plugged in the flat plug that goes to the trailer plug and the red line of leds works but the other two dont light up, not matter whay i do.
There site says the white plug goes to an aux power source. Its a long whitw wire so maybe to the fuse box or battery?
There site says the white plug goes to an aux power source. Its a long whitw wire so maybe to the fuse box or battery?
fordgt
Well-Known Member
Go to the very beginning of this thread. Nick has the wiring diagrams and where you need to tap into the harness. One thing that confused me was the need for a harness that matches the plug on the OPT7. It is a standard trailer plug that is the opposite of the plug on the OPT7. However a standard plug will get you all the functions except brake lights. If you buy the adapter I pictured in my last post, it gets you plug you need and an adapter that allows for all the lights to work.
you have to find the harnesses on both sides where they plug into the tail light fixtures. It really helps to unplug them and peel about 6” of the tape and loom cover. Once you do that, you will see the wires color coded (from the 1st post, I printed the out so I could have them under the truck for reference). Then you use a quick tap and attach the wires as indicated. All of the connections are on the driver side except for one wire (the green one) which goes to the passenger side for the turn signal.
i would start at the first post in this thread and read them all the way through. There is a lot of valuable info here, which started when Nick posted the wiring diagram.
Below are the diagrams and the 2 options for the mating end you need. The Amazon picture will not give you brake lights.
Hope this helps.
fordgt
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Plugging the OPT7 into the trailer plug on the truck will confuse the truck into “thinking “ there is a trailer there and will disable some of the features that are disabled when you actually pull a trailer.
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fordgt
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Sorry, I forgot to mention the white wire on the OPT7. That is for the reverse light function. It also taps into driver side plug loom . So if you use the HOPKINS converter, (I would recommend it), you will be tapping the red, yellow, brown and white into the driver side loom and running the green over to the passenger side.
BigOleOgre
Well-Known Member
Also I pulled and consolidated the discoveries and info in this thread into a DIY write up. There's only 5 in the DIYs, look for the lightbar one.
Barry H
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Hi,I know a bunch of people have wanted to do this on their rangers but with out a plug and play option out there it’s difficult. If you use the 4 wire plug at the hitch the truck freaks out and thinks a trailer is attached, gives faults for trailer tail lights not working and disables the blind spot/ cross traffic system.
I was able to get my hands on the wiring diagrams from a friend that works at a shop so I could hard wire into the tail lamp harness. If you plan on doing this modification you will find if you pull the tail lamps the harness to them is no help. All the wiring to the lamps is black wires. You need to get under the rear and out each outside of the hitch you will find a harness the you can follow up to the tail lamps I tapped in to this harness
i have attached photos of the harness diagram. Hope this helps you all out.
I have connected a set of curt auxiliary trailer lights to my trailer harness. what are your thoughts on connecting a switch to the white ground wire and turn the switch off when in reverse (so Incan see the reverse lines) and then turn back on when in drive so my running, brake, and turn lights work
kishanp35
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Is there any company out there that makes a plug and play harness similar to something like this? Id much rather not tap in to a factory harness if i can avoid it.
https://www.opt-7.com/collections/f...-harness-for-f150-21-23-with-halogen-and-blis
https://www.opt-7.com/collections/f...-harness-for-f150-21-23-with-halogen-and-blis
fordgt
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I believe there is a kit PUTCO (maybe) that has a harness that is plug and play. I think it is about $750 though. Made my decision for me.
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