Tekonsha 4-Pole Hardwire Kit Installation - 2007 Hummer H3

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How to Install the Tekonsha 4-Pole Hardwire Kit on a 2007 Hummer H3


Today on our 2007 Hummer H3 we're going to be taking a look at and showing you how to install the Tekonsha four pole hardwire kit with circuit tester.Here's what our wiring's going to look like once we have it installed. Now it is going to live on the outside of her Hummer right by our hitch so it'll be ready when we want to hook up. It's going to provide us with a four pole flat trailer connector so we have all the required lights to get down the road safely, like our taillights, our turn signals, and our brake lights.Our kit is going to be hardwired into the trailer wiring that's already on our hummer. There should be four wires just like these that are just going to be tucked up underneath the bumper, then we can attach these two. Our kit is going to come with all the necessary hardware to get it in place, like quick splice connectors as well as a tester so we can test and verify all of our wiring.When we do go to install this, we'll have more than enough wire to go from our factory wire underneath to our hitch because we're going to get a total of six feet of four pole wire. But now that we've seen the end result, let's show you how to get it installed.To begin our installation, we're gonna come to the back of our H3 and we're going to want to go underneath just forward of where our muffler is.

Right above our muffler on the driver's side, we're going to have this opening right here. If we reach up we should be able to find a harness, but it'll have several wires attached to it. We're going to pull that down and you're notice that the wires are going to have kind of a protective coating on the end. These are the four wires we want to work with. There's gonna be a white one, a green one, a yellow one, and a brown one.Now we can take a tester in our kit you want to hook this end to a solid ground point, then we can probe our wires.

I'm going to be using a different style tester that works exactly the same. We're just going to ground one end and then use this end appears pierce our wires.Right now I have my left turn signal on. I'm going to check the yellow wire and make sure we're getting that signal through. We can see that we are getting a signal on our left turn signal from our yellow wire. I'm going to go ahead and turn my left turn signal off and we'll turn our right turn signal on so we can isolate that signal.

Our green wire should be our right turn signals. When we test it we are getting a right turn signal so we know that's the right wire. I'll go ahead and turn the turn signals both off. We're going to turn our taillights on so we can see if our brown wire is our taillight circuit.You can see I'm getting a constant power source, which means that is going to be our taillight circuit. It also means that this white wire is going to be our ground wire so we can start making all of our connections.We'll start by cutting out that coating that's on the end of all of our wires.

Then we're going to strip back the end of each one of our wires. In your kits you're going to have these quick splice connectors. However, I'm going to be replacing these with butt connectors to connect my wires. But if you want to know how to use these, I have a spare piece of wire that'll show you how it's going to work.We're going to take one wire from either our harness or our kit and it's going to go all the way through. That way you can pass your wire through. Then you would take the other wire you're going to connect and slide it into the terminal. That one's going to stop, then we grab a pair of pliers and we're going to squeeze that center tab down until it pierces both wires and then we just close the connector up.Now if you are using these, I would suggest wrapping it up with some electrical tape that'll help protect it a little bit better. We can grab our harness and we'll start by stripping all the wires on that as well. You take your butt connector or your quick splice, we'll put one end on our harness and we'll crimp it in place. Find the corresponding wire, in this case will be the green wire, and we'll connect the two together.Once this one's connected we're just going to repeat that process and connect to all of our wires, color for color. I'm going to take a heat gun to shrink down my butt connectors, but if you're using an open flame like a torch or a lighter, you want to be extremely careful not to burn or char the connectors or the wires themselves.To help protect my wires a little bit I'm going to take some electrical tape and wrap up all my connectors and the wires that are pretty close to the muffler here. We're going to route the end of our four pole to the center of our hitch so it'll be ready when we want to tow. We're also going to tie up all the excess so it's out of the way and away from our exhaust where it won't get damaged. I went ahead and plugged in my four pole tester because the last steps going to be making sure that all the circuits are working properly.If I turn on my headlight circuit you can see that the taillights are coming on as well as the left turn signal, the right turn signal, my brakes and my brakes and my turn signals. 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 four pole hardwire kit with circuit tester on our 2007 Hummer H3.


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Info for this part was:

Test Fit:
Joe V
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Zack K
Video Edited:
Andrew K
Installed by:
Jeff D
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Joshua S
Test Fit:
Nicholas E
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Jacob T
Test Fit:
Rick A
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Mike H
Test Fit:
Shane T
Video by:
Alan C
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Sue W
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Chad S
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Chris R
Test Fit:
Jared G
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Jonathan Y
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Robert C

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