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Trailer Wiring Harness Installation - 2008 Toyota Tacoma

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Toyota Tacoma Wiring

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Installation of a Trailer Wiring Harness on a 2008 Toyota Tacoma

Today we are working on a 2008 Toyota Tacoma. We will be installing Tow Ready T-one connector part number 118496. Our first step will be to lower the tailgate. This will expose the mounting screws so that we can remove the rear taillight. They will be identical on the passenger side also. Let us go ahead and do that now. With our mounting screws removed, we can go ahead and remove the taillight. We will just work it back and forth until it comes free from its fasteners. With the taillight removed, you can see the connection here for our new Tow Ready connector. So we will depress the locking tab here on the backside of the connector and separate the two connection points. Once we disconnect the two connection points, the taillight lens will be free of the vehicle. We will take our yellow wire connector. It will match the manufacturer connection and we can plug them inline. Once it snaps in place, we can then go back to the vehicle connector on the other side and snap it into place. 1:00

Now, before we reinstall the driver side taillight, I am going to go ahead and peal back the white wire. We are going to it down between the taillight and the body of the vehicle so that we can make a ground connection and we are also going to feed the green wire, or the right side taillight wiring, down through the body. And our new 4-pole connector will also get thread down through the body. We will just follow the manufacturer wiring out down below the taillight. With that done, we can go ahead and mount our converter box. We will peal back the paper off of the two sided adhesive. We are looking for a clean, flat location. Just the inside behind the taillight is a perfect spot. Firmly press it to make sure we get a good connection. With our converter box installed, we can go ahead and reinstall our taillight lens. 1:54

Now that we are under the vehicle, we can go ahead and take our ground wire, which you can see already has a ring terminal on it, and a self-tapping screw and make our ground connection here. Alright, with our ground connection made, we just want to start following the manufacture wiring and route both our wiring going to the right side taillight lens and our new 4-pole connector. We will go up, over the frame and route our 4-pole connector down to the hitch. Then we will continue on the wiring that goes to the right side. Go up over the right side frame and up through the body, behind the right side taillight lens. Go ahead and make our connection to the right side taillight lens now. And separate the two connection points. 2:49

As we stated before, we were just following the manufacturer wiring. We can go ahead and use some black zip-ties to secure it to that manufacturer wiring. With all of my zip-ties in place, I am just going to go back and trim off any extra. Give you a good clean look. And that completes the installation of our Tow Ready T-once connector, part number 118496.

Info for this part was:

Video Edited:
Andrew K

Video Edited:
Joshua S

Video Edited:
Jacob T

Video by:
Kathleen M

Installed by:
Cole B

Test Fit:
Randy B

Video by:
Chris R

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.

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Trailer Wiring Harness Installation - 2007 Toyota Tacoma

Today on our 2007 Toyota Tacoma Double Cab, we're going to show you how to install the tow-ready T1 vehicle wiring harness with the four-pole flat trailer connector. It's part number is 118496. All right, guys, here's what the kit is going to look like, minus the tools of course. You are just going to need a little kind of like a trim panel tool, what this is or a little plastic screwdriver, even a plastic thing from the kitchen. You can just kind of stick in there. Then a 10 mm wrench, ratchet, or socket.

Trailer Wiring Harness Installation - 2015 Toyota Tacoma

Today on this 2015 Toyota Tacoma, we're going to show you part number C55513. This is a Curt T Connector Vehicle Wiring Harness with a four pole flat trailer connector. With this part number, this is what you get in the package. You get the wire harness, a cap for our four pole end and some zip ties and adhesive for the converter box. Let's go ahead and take a look at the wiring a little bit closer. First off, there's actually two T connectors. This one over here with the yellow wire is for the left turn signal.

Trailer Wiring Harness Installation - 2015 Toyota Tacoma

Today on this 2015 Toyota Tacoma we're going to show you part number 118496. This is the T1 Vehicle Wiring Harness with a Four Pole Flat Trailer Connector from Tow Ready. With this part number these are the parts that you receive. Obviously, the wire harness right here, some zip ties and a ground screw. We'll go ahead and cover the functions of our wire harness while we have it out. This is our T connector here for the left hand side with the yellow wire. We also have a white wire with a ring terminal that goes to ground.

Trailer Wiring Harness Installation - 2010 Toyota Tacoma

Today on 2010 Toyota Tacoma we're going to install part number 118496 from Tow Ready. First thing we'll need to do is go ahead and lower tailgate and we have to remove both tail lights. There's a bolt on top and bottom light to remove and then we can go ahead and unsnap the tail light from the plastic connectors behind it. Pull down from top into bottom, rock it back and forth until it pops loose. Then we'll disconnect the wire harness push down and you can disconnect it from the tail light. We'll go ahead and put the tail light aside for now. We're done with our driver's side, let's go ahead and repeat the same process over on the passenger's side. Alright now at this point we can go ahead and start installing the wire harness.

Trailer Wiring Harness Installation - 2003 Toyota Tacoma

Today on our 2003 Toyota Tacoma, we'll be installing the Tow Ready T1 Vehicle Wiring Harness, with a four pole flat trailer connector, part number 118379. We'll also be installing a bracket, part number 18144. We'll begin here on the driver side tail light, where we'll need to remove four screws. Next, we'll need to disconnect the factory wiring from the back of the tail light. Push in on this little locking tab and gently pull outward. We'll go ahead and repeat the same process over on the passenger side to remove the tail light. We'll go ahead and take the end of our wiring harness that has the green and the red wires on it and we'll feed it down behind where the tail light assembly is on the driver side.

Trailer Wiring Harness Installation - 2002 Toyota Tacoma

Alright on this 2002 Toyota Tacoma, we're going to install product number 118379 from Tow Ready. Alright, first thing we have to do is go ahead and remove the tail lights. Right now we'll go ahead and disconnect the tail light from the harness. Alright, we're doing the passenger's side, let's go over to the driver side and repeat the same process. Over here on the driver's side we'll go ahead and take our 4-pole wire and we'll strap it at the bottom, alright. And we'll do the same thing for the T-Connector with the red and green wire.

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