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Trailer Wiring Harness Installation - 2016 Chevrolet Express Van

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How to Install a Trailer Wiring Harness on a 2016 Chevrolet Express Van


Today on our 2016 Chevrolet Express van, we're going to be taking a look at and installing the T1 vehicle wiring harness with four hold flat trailer connector. Part number 118392. This is what our wires look like when they're fully installed. They're going to stay on the inside of our van at all times until we're ready to use it, when we can lay it out and the weather stripping on the door is soft enough that it's not going to damage our wire, but then when we close the door we still have plenty of wire to hook up to our trailer, and we're ready to hit the road. Now that we've gone over some of the features, let's show you how we get it installed. To begin our installation, we're going to open up the doors to our van, and if we move to the inside, and we go right behind our tail light, we'll find our wiring right here. Now we're here on our driver's side, and we're going to look for a plug right here, right behind our tail light. We're actually going to take this orange tab here, and we're going to pull it out, so it'll unlock our socket, and then we're going to go ahead and remove the plug from the socket, and if you need to, you can take a flathead screwdriver and actually pop the socket out from the wall so you have a little bit more room to work with. Now, we can go in and push down on our tab to release our socket. Now, if we find our wiring harness, or yellow/brown end, and we're going to connect the female and the male, and connect them into each other, making sure that locks into place.

We can replace the locking tab, and actually in our kit they provide us with another locking tab for our other connection here, and we're going to take it, and in that small section here where it has that channel and then the button we push, we're going to take our green locking tab, lining up that center section in the middle, and we're going to push in so it locks it into place. We're going to take the green wire now with our T connector, and I'm actually going to run this wire . In the end result, I'm going to run it up over my overhead here, and zip tie it to some other wiring that I have up on my ceiling, but for now, I'm just going to take my connector, and I'm going to move over to the passenger side. We're going to do the same process that we did on the driver's side. We're going to pull this locking tab out, and we're going to push in on the other tab right below it, which will release our tail light sockets, and then again go in and plug in our T connectors, and finally putting in our locking tabs. Now we need to focus on our ground wire, here. Now, the kit does come with a self-tabbing screw, so we can screw it in anywhere that's not going to interfere with any of our other wiring, or anything else, but fortunately right here we have a factory ground, so I'm going to remove this bolt, and I'm going to ground my ground wire right there, as well. I'm just going to zip tie my wires to some factory wires up here to help keep it out of the way and just tidy some things up. Now that I have all my wires tied up, let's come back to the back and we can test it. Now, here I got a four pole tester.

Now, if you don't have one, you can pick one up on our website using part number I26. Now, I'm going to grab an extra set of hands, that way I can have them run our lights, and we can verify that everything is working properly. Right now, if I have them turn on our running lights, now our left turn signal, right turn signal, and our brakes. Now, just to make sure that everything is working right we'll make sure our brakes and turn signals work at the same time. Everything looks good. We're ready to hit the road. Now, I am going to do one extra thing.

Since the wiring is going to stay on the inside of our van, it is going to be away from the elements. We use our van as a work van, so I am going to take some wire loom and put it around it. That way, to give it a little bit of extra protection against my tools and my equipment, I don't have to worry about the wire. Now, if you need some wire loom, you can pick some up at our website using part number 459075-1. That'll finish up our look at the T1 vehicle wiring harness, part number 118392, on our 2016 Chevrolet Express van.


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