Tekonsha T-One Vehicle Wiring Harness Installation - 2020 Chevrolet Equinox

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Installation o the Tekonsha T-One Vehicle Wiring Harness on a 2020 Chevrolet Equinox


Ryan: Hey everyone, Ryan here at etrailer. Today on our 2020 Chevrolet Equinox, we're going to be taking a look at and showing you how to install the Tekonsha T1 vehicle wiring harness. Our trailer wiring is going to provide us with the necessary lighting functions to not only be safe, but legal. It's going to give us our turn signals, our running lights, as well as our brake lights. So one thing I really like about this kit is that it uses a module box. And so what that module box is going to do is protect your vehicle's factory wiring if a short or an electrical issue we're to occur on your trailer side.

That's really important, especially with today's vehicles, they have a lot of sensitive electronics that you have to worry about. So that gives you the peace of mind knowing that all that will be protected.So the wiring's going to have a really nice thick, rubber dust cap that goes over your terminals to help keep them protected. Now I do recommend going a step further and every now and again just taking some dielectric grease and covering them just to really help prevent any of that corrosion. Now, one thing I do recommend picking up is a bracket. I'm using the four-pole flat bracket, which you can find here at etrailer and this works out really good actually.

I just used one of the factory bolts that kind of helps secure our bumper and just used that to secure the four way bracket. And it turned out really nice. So overall, really reliable and straightforward set up. That's going to make it so you can tow more safely. As far as the installation goes, it's really not all that bad.

It for the most part plugs into some of the factory wiring.And really I'd say the hardest or most time consuming part, at least, is running the power wire from the back here up unto the engine compartment. But as long as you take your time, you shouldn't have any issues getting it done at home. Speaking of which, let's go ahead and hook it up together. To begin our install, we're going to be working here at the back of our Equinox. We're going to open up our hatch and what we're going to need to do is remove our taillights.

So if you look right here and here, there's going to be some little plugs almost, if you open them up, I'm going to use a pick. You could use a small screwdriver or something like that, pry underneath the head of them. Top and bottom.And that'll expose a Torx bit screw underneath. So we'll take a T15 Torx bit. Ready to pull those out. Now we can remove our taillight. To do that you kind of grab it. Sometimes you can kind of wiggle it and pull straight back. That'll release it. Then we can go ahead and unplug it. So we'll have two plugs, push down on the center tab, pull out, and this one should work the same way. Push down on that center tab and pull out. The other side of our Equinox is set up the same way. So we're just going to repeat this process over there.With both the taillights out of the way, what we're going to do on the driver's side, we're going to grab our wiring and we're going to drop everything down through the taillight pocket to the underside of our car, with the exception of one thing. What we're going to keep up top here is the T-connector side with the yellow and white wire. So I kind of just hold that and feed down all of your wiring one at a time. Once you kind of get it all lined up and going down straight, we're actually going to take our whole box too and feed that down as well.Once we get that all to drop through, our T-connector here on the driver's side, what we're going to do is plug these in. So this is the only plug that we're going to be working with. One end of our T connector we'll plug into that side. And then we're going to grab our taillight and plug that into the other end. It can only go on one way, so you don't have to worry about getting it backwards. Get that plugged in. We'll plug in this other connector. Then we can get it reinstalled. So we'll go ahead and reinstall our taillight the opposite way that we removed it.These caps just kind of snap back into place. So now here underneath our Equinox, this is where our module box and all of our wiring drop down through. And I just secured our module box using a couple of zip ties to this big factory harness here. And that'll hold it in place. From there we can run our four pole flat wiring, as well as our green wire towards the passenger side of our Chevy. So both of them, I just ran along through here and securing them along the way.I packed her here. Now the four-pole flat, I actually dropped down and over our hitch to this four-pole flat bracket. And this is where I ended up mounting it. Wiring doesn't come with this bracket, but if you need one, you can find it here at etrailer. They actually worked out really nice because this bolt right here, that's holding our bracket up is actually a factory bolt that connects to a little support bar. And so this worked out perfect. I didn't have to drill any holes or anything and it gives it a nice clean, secure mount. So the green wire continues towards the passenger side, just up along through there and do your best to try to keep it away from the exhaust. So I ran it up and here's where our connectors are. So what I did was this black piece of tubing here.I'm using this as a pull wire. So from up top in that taillight pocket, I push this piece of tubing down that way I can tape our T-connector to it. Then when we go back up top, you can just pull on the pull wire and it'll feed everything up into the taillight pocket. If you don't have a piece of this tubing, you can always use a coat hanger or something like that to achieve the same thing. So back up top, now we can grab our pull wire and pull our connectors up into our taillight pocket, trying to get all that slack out. Let's go ahead and take our tape off, and then we can get them plugged in.Push that down. Then we can grab our taillight and take the other side of the T connector and plug it into that. Once we have them connected, we can just re-install our taillight the opposite way we removed it. Back underneath, we're going to grab our white wire with the pre-attached ring terminal and a self-tapping screw and ground it out to the body of our vehicle. I'm going to go right here cause it's nice and flat. And it's a thick piece of steel and should provide us with a reliable ground. So here's what the ground looks like once we have it nice and secure to the frame of our vehicle. Now we can grab the black power wire with the red stripe coming out of our module, and this is going to be our power wire. So what I'm going to do is take a heat shrink butt connector, a standard style butt connector that comes in the kit, which will work just fine. I just like these heat shrink ones, especially being outside helps keeps our connection a little more protected from the elements.If you want to use these, you can find them here at etrailer. And so you take the stripped end of the wire, slide it in the butt connector and crimp it down. And what we're going to do is take our big bundle of black power wire. We're going to take one end of it, strip it back, shorten it up a little bit here and take this end, put it in the other side of the butt connector, crimp that down to completely connection.Now, let's come back with the heat source and seal up our heat shrink. Now at this point, what we're going to do is run our big bundle of power wire towards the front of our Chevy. And we're going to go up into the engine compartment that way we can eventually hook it up to our battery. So I'll go ahead and do that now and then show you the path that I took to get there. Now, whenever you route this, you want to be sure to do your best and avoid any hot and moving parts. With that being said, I just ran our wiring along through here using some zip ties to secure it along the way. This little opening here, pushed it through there. Here's where it comes out of the other side. And I just kind of follow it along. And over our sub frame along those wires. Let's drop it along through here.And then I was able just to push our wiring on top of this panel and the wiring essentially just kind of runs underneath or above this panel, rather. Here's where it comes out. Just followed our factory lines and ran up into the engine compartment. And the way I was able to get it up into the engine compartment was to use a pull wire just like we did on the passenger side taillight and went up from the engine compartment, dropped that pull wire down, came down here, taped it to it and was able to pull it all the way up. So now in the engine compartment, here's where our wiring came up and just pull it up on through here. Kind of routed it over more towards the driver's side. That way we can hook it up to our positive battery terminal. So here's the end of our power wire. I stripped back the insulation. Again I'm going to grab a heat shrink butt connector, but as I said before, the one in your kit will work fine too.Put it on and crimp it onto that wire. On the other end, we're going to hook up to a fuse holder. So we'll grab the fuse holder and we're going to open up the cap, make sure that fuse is not installed. We'll do that after everything is already hooked up. We're going to cut it in half. We'll strip back both ends, the insulation. And one end of the fuse holder is going to plug right into the other side of the butt connector. Kind of twist some wires, give us a good connection, plug that right in. Crimp it down. Then the other end of our fuse holder, we'll take the included ring terminal and crimp that onto the end of our fuse holder.That's what our setup will look like. I'll go ahead and grab a heat source, seal up our heat shrink and we can come back and hook it up to our battery. And now we're going to do move to our positive battery posts. It's going to be a 10 millimeter nut here. And so we're going to remove that. Now we won't know until we get it really loose, but some of these nuts aren't designed to come off completely, at least easily. That way, if you change your battery, you don't have to worry about losing it. So we'll go ahead and run it back. And if it stops, you know that the not supposed to come off, which in our case, that is a situation. So as opposed to pulling it all the way off and having a fight with it, what I'm going to do is just put a notch in our ring terminal. That way we can just sneak it in there, I'm just going to grab some snips, just cut out a little opening, something a little bigger than that.Something along those lines. And what I'm going to do is just slide it underneath our nut there. Then we can tighten it back down and that'll give us a good connection. Now that it's tight, we can grab our included fuse and put that into the fuse holder and close up the dust cap. Now we can go ahead and check everything to make sure that it's functioning properly. I'm using a little tester. You can find here at etrailer, or you can always just plug into your trailer. So we'll go, that's our left turn, our right turn, our brake lights and our running lights. And that'll finish up our look at and our installation of the Tekonsha T1 vehicle wiring harness on our 2020 Chevrolet Equinox.


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Info for this part was:

Employee Joshua S
Video by:
Joshua S
Employee Jonathan Y
Video by:
Jonathan Y
Employee Jacob H
Video by:
Jacob H
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Cole B
Installed by:
Cole B
Employee Shane H
Test Fit:
Shane H
Employee Ryan G
Test Fit:
Ryan G

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