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Quickly and easily install a 7-way, RV-style trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required.
Features:
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today on our 2018 Nissan Frontier, we're going to be taking a look at and showing you how to install the Tekonsha T-One vehicle wiring harness with 7-way trailer connector. That's going to be part number 118266. To help us with our installation, we're going to be using the Pollak mounting bracket, part number PK12711U.Here's what our wiring's going to look like once we have it installed. I do want to mention that our kit is not going to come with a mounting bracket, so we will need to pick one of those up so we can secure the connector at the back of the truck. Our wiring's going to give us a 7-way connector, that way we have all the required lights to get down the road safely, like our turn signals, stop lights, tail lights, and our reverse lights.It's also going to give us a 12 volt power source at the back of the 7-way, and the option to use an electronic brake controller if we choose to put one in later.The spring-loaded door along with the rubber gasket on the inside is going to prevent any kind of debris or moisture from getting inside. What I really like about our wiring is the fact that it is going to be a completely plug-and-play installation.
We're not going to have to cut or splice into any wires at all. We're not even going to have to remove our tail lights. We're going to have two connectors underneath the vehicle, and then we'll have a few relays that we'll have to put in place on the inside.So now that we've seen what our wiring looks like and gone over some of the features, let's show you how we got everything hooked up. We went ahead and mounted our 7-way bracket. Now we're going to take our 7-way plug, we'll slide it through, and the holes will line up, and we can take the hardware from the bracket and attach everything up.
Start by taking one of the screws, we'll go through our connector, all the way through the bracket, and then we'll secure it on the back side using a locking nut. We'll repeat that for all four holes, so we can make sure our 7-way is going to be secure.I'll come back and I'm going to take a flathead screwdriver, and while I'm holding the nut on the back of my finger, I'll just tighten it up to where they're nice and snug.If we move underneath, on the side of the frame rail on the driver's side, we're going to have two plugs. We're going to need to take the caps off of each of them. The easiest way to do it without having to take the plug off of the frame, you just take a pair of needle-nose pliers, and we'll come in and we're going to squeeze on that tab, and then we'll pull down, and we can pull the plug out. We'll do the same thing for the other plug as well.With those caps unplugged, we'll grab our wiring harness.
The black plug is going to plug into the black connector on the bottom. Just push it in until it locks into place. And then the gray plug is going to plug into the gray connector. We'll take the other end with our 7-way connector on it and we're going to route it towards the back of our hitch where we have our 7-way plug at.Before I plug my connector in, I'm going to take some dielectric grease and I'm just going to fill up this entire area. Hopefully, that'll prevent any kind of corrosion from building up and moisture getting inside the connector.
If you need some dielectric grease, you can pick it up here at etrailer.com. We'll just line it up and push it til it locks into place. We can tie up any of the excess wires to the back of the hitch here.Now that we have everything connected back here, we're going to move into the cab on the passenger side. On the passenger side, right by the outer door here, we're going to have this kick panel. If we look at the very back, we'll have this plastic fastener that's holding it in place. You should be able to remove this by hand, just turning it to the left to unscrew it. And then we're going to have to remove this lower panel on the side here. If we start on the lower part at the threshold, we should be able to get our hands underneath it. We'll pop all the clips out, so we can remove this piece. And then we'll grab behind this piece and I'll pull this one out as well.Now, behind all those panels, we're going to have several plugs. We should have one that's going to be open, it's going to have several pins on it, and it should match up to the other side of our harness. We'll take our white connector and plug it in, want to make sure it locks into place.On the other end of our harness, we're going to have a few more plugs, and we're going to be plugging some relays into there. We'll have two white plugs, we're going to have two blue relays. These are going to be exactly the same, so we just want to make sure that we plug them in correctly, but it's not going to matter which one we plug into where. We'll plug them in, make sure they lock into place. And then the brown connector, we're going to take our brown relay and plug it in. Again, it only goes on one way, just want to make sure we get it in and locked into place.Now, to help with keeping down the noise and our relays rattling around when they're back here, they are going to provide us with some of this foam insulation. What we'll do is we'll take off the backing, and we're going to wrap our relays so that even if they do bounce around a little bit and move, hopefully this will cut down some of that noise and we won't have that plastic on plastic contact noise. So we'll do that for each one of our relays. Then you can tuck the relays and the rest of your harness back into this little cubby here, and we can put all our panels back in place.So I went ahead and plugged in my tester to make sure that all the functions are working properly on our wiring. We can see that the tail light function is working, as well as the left turn signal, the right turn signal, our brakes, and even the reverse turn signal. All we have left to do now is hook up to our trailer and hit the road.That'll finish up your look at the Tekonsha T-One vehicle wiring harness with 7-way trailer connector on our 2018 Nissan Frontier.
Average Customer Rating: 4.7 out of 5 stars (175 Customer Reviews)
Quickly and easily install a 7-way, RV-style trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required.Fantastic plug and play installation of your product. Hardest part of the install was wrestling with my panel trim. Thank for your online tutorial and great on time delivery. 601987
Ken - 02/03/2020Ordered a Class III hitch for 2006 Xterra with wiring. Seamless transaction fast shipping and perfect fit straight out of the box. One of the easiest transactions I have had. I highly recommend etrailer.com to my friends and those who want professional, fast service. 356180
Okay, so I've finally had a day off to fully install the kit in my 2013 Pro-4X Xterra. If you're looking to do the same and are wondering if it has everything you need, don't worry, it does. I didn't time myself during install but I know it took me less than 20 minutes, you don't even have to remove the spare tire to hook up the wiring in the rear. Literally plug and play. It took me a lot more time to figure out where to install the connector. Nissan went out of their way to make this an easy install if you don't have a factory towing package, this kit is worth it. Buy it, use it. 391865
Shawn K - 06/11/2018This wiring harness for my 2011 Nissan Frontier (118266, comes with the relays for trucks that are not haul-ready from the factory) is just as advertised. The videos were the most helpful! Please watch them. It took me about 45 minutes to connect the relays inside the cab behind the kick panel on the passenger side, plus the harness at the rear of the vehicle. It took another 45 minutes to install the bracket for the 7-way plug, but that was only because I broke 2 drill bits trying to drill through my bumper. My bad! I tested the installation by hooking up to a trailer before closing everything up, and it all worked perfectly. Just as advertised. 474566
Todd - 02/10/2019Everything connected/ plugged in as it should but I as other's saw the brakes lock up. Now I cannot use and do even have trailer brake lights 563723
Mike L - 09/11/2018Everything plugged in and worked great. Install was easy and fast. I had a few issues with my install and use and etrailer support team was quick to respond to my calls and requests. My only concern is with the trailer brakes lock up issue that's been brought up several times in the comments and reviews sections. I ran into the same issue and wasn't exactly sure on how to fix this just from reading the comments and reviews. I reached out to etrailer to seek details on resolving this issue, turns out etrailer has detailed instruction on how to fix this problem. It would have been nice if this self-help link is presented/available on the product page. http://www.etrailer.com/faq-tb-14-02-Nissan-Suzuki-OEM-Wiring-Harness.aspx 141469
As with most buyers, I had to reverse the black and blue wires. Other than that it installed quickly and worked fine. Videos helped to make install a breeze along with the fix! 647645
Not sure whether it is my truck or the harness but the brake lights and aux power where crossed. Took it to a local shop $100 later all is good. Harness is nice. Again I don't now if it was my truck or the harness. If you have a 4 way that works properly your probably fine 599443
This was very easy to install. Install video was a big help. I installed this 1 year ago and have not had a problem with it. Took about 30-45 minutes to fully install, and I took my time not to break any of the trim pieces. 647636
These wiring components work perfectly. They were easy to install with the instructions. Anybody can do this. I got the 7-pole connector in this package and also bought a 7-pole to 4-pole adapter with a test light so I could make sure that the connections were working. I also bought the Polak PK12711Y bracket to put on my trailer hitch. I tried the standard bracket from Walmart but they did not match the hole pattern on the 7-pole connector. Carol C recommended the Polak bracket and the hole pattern matched perfectly. I can now pull my trailer. I will return to etrailer for any of my trailer or other vehicle part needs. Thanks you etrailer. 607765
Everything plugged in, simple install. Only issue was the two wire connector at rear of truck had the black/blue wires reversed in connector. Brakes were on all the time. Did not know how to remove the small metal connectors so just cut black and blue wire and reversed them, all good now. The connectors and relays behind kick panel all went together perfect. Also ordered POD control at same time, all plug and play, works great. Except for the time to figure out problem with the black/blue wire connector, it would be 5 star. 418138
Alan V - 08/14/2018Arrived on time. Packaged well. Install was very easy. Did not need to lower exhaust as other have mentioned. Looks great! 604363
Product is supposed to be a direct fit for Nissan Frontier install. Unfortunately, this was not the case as the blue and black wires are reversed as reported by so many others on this site and other sites (fortunately, I knew to check before hooking up a trailer) . These wires are for constant power and the trailer brakes. Fortunately, there was a video posted on etrailer on how to reverse the pins on the wiring harness that connects the vehicle wiring with the 7 pin connector at the rear of the vehicle. The video showed how to reverse the pins in the 2 pin connector that attaches to the vehicle wiring - the 2 pin connector contains only the blue and black wires. Not too difficult but definitely takes some time due to the process of installing everything on the vehicle, testing, taking parts back off the vehicle, disassemble/reassemble the wiring connector, reinstall on the vehicle and retest. 3 starts because this is supposed to be plug and play - not sure if this is a Nissan issue or the wiring manufacturers issue but I would have preferred to simply plug it in and be done. Also, I purchased the Draw Tite (Item 18138) mounting bracket and it did not work with this harness - the holes did not match up and would have required drilling all new holes. 522505
Ordered this for my 06MY Nissan Xterra. Installation was a breeze, just plug and play. Did find after installation that the 12V feed and the brake controller line at the 7-way plug were reversed after some troubleshooting of an inop brake controller. Not sure if it was a Nissan OEM wiring problem or wiring problem with the product I received. Never-the-less, cut the plug off and put it back on the correct direction. Now everything works at it should. 93080
Most Nissans are wired such that the connector will work properly out of the box. For whatever reason, Nissan wired some with these two circuits flipped, and we have not been able to determine and method or pattern as to which are wired differently. We are working with Tow Ready to find a solution that would not require the user testing the vehicle beforehand.
-- Patrick B - 1/9/2014 Chris J - 02/02/2015The trailer light kit I got was very easy to install with the helpful video and instruction etrailer has. etrailer made it very easy to select the correct trailer accessories for my Frontier. They were helpful when I called and the website is very easy to use! I have made other purchases through etrailer because it is easy to use and they have what I needed all in one place. Thanks! 770461
The harness was exactly as represented and plugged and played just like I expected. I was pleasantly surprised to find that the relays were actually included on my truck's original wiring so I only needed to add the bumper connector, and sure enough, my Xterra has the same wiring error as others reported affecting the trailer braking, but a simple wire swap took care of it. 767822
Harness is well made and installation was very easy. etrailer shipping was fast and the price was right! 766903
Excellent product!! 766531
Great products. Installation was quick and easy 765276
All good ! Thanks, for all ! 763076
Shipped well packaged and in perfect condition. Product was just as described on the website. Installation instructions were dead on and install was very quick. Everything was included. Worked perfectly several times now. 755033
Plugs right in, works as it should 749080
Super easy plug and play installation into my 2006 Nissan Xterra. Everything fit as it’s supposed to. Used part number PK12711U to mount the plug. Super easy as well. Install videos are spot on. Shipping was fast. Definitely buy from these guys again. 746672
Perfect fit...no problems a year later. Had to drill a hole for the 7 pin connector (optional but nicer look) 739997
I bought a trailer hitch and harness for my 2019 Kia Sportage it's been fine reasonable price it does a job very very happy 737600
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