Shop by Vehicle
view cartView Cart

CALL NOW - 800-298-8924

Product Experts Available Now!

Free Shipping on Orders Over $50

Only 15 Hours 34 Minutes Remaining

Trailer Wiring Harness Installation - 2013 Toyota Highlander

content loading

Toyota Highlander Wiring

Products Featured in this Video

Installation of a Trailer Wiring Harness on a 2013 Toyota Highlander

Today on our 2013 Toyota Highlander we'll be installing the Tow Ready T1 vehicle wiring harness with four pole flange connector, part number 118449. To begin our install we're going to start in the drivers side kick panel located underneath the dash board. Attached to the manufacturers wiring harness will be a white connector that will match the white connector for our Tow Ready harness and converter box. Now that we've located the connector we'll need to remove the threshold and drivers side kick panel so we can store the converter box and wiring. To remove the threshold we'll use a flat blade screwdriver or interior trim panel tool to gentle pry the panel up and release the fasteners underneath. Next we'll go ahead and repeat the same process with our kick panel only we have one plastic cap nut to remove also.

Now with our panels removed and sit aside for installation we'll go ahead and take the white connector match it with the manufacturers and connect the two. Then we'll give it a couple of quick tugs to make sure the two connectors lock together and are secured. Next we'll go ahead and route the converter box down behind the kick panel to the open area. To secure the converter box we'll use a two way adhesive on the back of the converter, peel away the outer cover, and then adhere it to the seat metal. Now with our wire routed and the converter box mounted we'll go ahead and use the zip ties provided with the install kit to secure the wiring behind the kick panel.

Once secured we'll cut off the excess from the zip ties to clean up our install look and reinstall the interior trim component. Next we're going to move tot he back of the vehicle. We're going to remove some interior trim components in order to attach our new four pole connector and harness. We'll start by opening up the rear cargo door and then removing the rear cargo liner. Next we'll remove the center tray cover and the two corner covers.

Go ahead and remove the rear sun shade and sit these aside for installation later. Next we'll need to remove the cargo tray on the drivers side. To do this there's a push pin fastener we'll go ahead and remove and two cap nuts. Once removed we'll go ahead and push in on the sides of the cargo tray to release them and then pull up and remove it from it's position. Now we can locate the manufacturers wiring and the fourth pin white connector that's attached.

You want to match it up with the four pin connector for our four flat wiring harness. Snap the two together. Then use a zip tie to secure the wiring. Once secured we'll cut off the excess from the zip ties to clean up our install look. Now we'll go ahead and route the four flat connector to the center cargo tray. Now we're ready to install the cargo pocket. Once we resecure it we'll install the rest of our interior trim components. With that done our next step is to move under the hood. We'll locate the vehicles fuse panel and remove the cover. Then well locate the fuse towing port and install the ten amp fuse provided with our installation kit. Now with that done we can go ahead and reinstall the fuse cover and close the hood. Next we'll go ahead and check the operation of our new four pole connector. Using a test light, connect the ground clamp on the open post of the four flat connector. The first pin from the open post will bet eh running light circuit. The second pin will be the left turn signal and left braking. The third and final pin will be the right turn signal and right braking. Now that we know all functions work we'll go ahead and show you how to use your new four pole connector. Simply take it out of the rear cargo area and run it down to the hitch or accessory. Be careful to stay away from the latch as pitching off in the latch can harm the wire. However, the weather stripping is thick enough that we can simply close the rear cargo door on it. Then once we're finished using our new four pole connector we'll simply roll up the wire and store it in the rear cargo tray. With that this will complete the install of our Tow Ready T1 vehicle wiring harness with four pole flat connector, part number 118449 on our 2013 Toyota Highlander.

Info for this part was:

Video Edited:
Zack K

Video Edited:
Andrew K

Video Edited:
Joshua S

Test Fit:
Nicholas E

Video by:
Kathleen M

Installed by:
Cole B

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.

Ask your question or add a comment to this video?

Name: (example: John S.)

Contact email:

Comment or Question

Yes, I would like an email notification if someone replies to my comment?   

Toyota Highlander Custom Fit Vehicle Wiring Videos

Trailer Wiring Harness Installation - 2012 Toyota Highlander

Today on our 2012 Toyota Highlander, we'll be installing the Curt T Connector vehicle wiring harness with four pull trailer connector, part number C56217. To begin with, we'll need to locate the harness, which is underneath the dash on the driver's side. It's a white plug that we're looking for and it's in between the brake pedal and the emergency brake pedal. Now, we're going to first go ahead and make sure the pins line up with the new plug on the box with what the factory wiring harness has. After checking them, we see that they line up exactly how they're supposed to. Now we'll go ahead and make the connection. We want to make sure that when we push the connection together, that we hear it lock into place. Next, we'll go ahead and put our white wire under the grounding stud, located up on the front fire wall. But, it does not have a nut and you will need to supply this separately.

Trailer Wiring Harness Installation - 2004 Toyota Highlander

Today on our 2004 Toyota Highlander, we'll be installing the Tow Ready T1 Vehicle Wiring Harness with four pulse lat trailer connector, part number 118413. To begin with, we'll go ahead and raise the rear hatch of the vehicle. You'll notice two small doors, or panels on the inside of the vehicle. One on each side. We'll need to remove each of these panels to gain access to the tail light wiring assembly. Now let's set out our T1 Vehicle Wiring Harness to go over what parts are included.

Trailer Wiring Harness Installation - 2005 Toyota Highlander

Today on our 2005 Toyota Highlander we'll be installing the Tow-Ready T1 vehicle wiring harness, part number 118413. First we'll need to go ahead and remove the access panels on both sides. We'll go ahead and sit those aside. Then we'll remove the center cargo tray. Now on most applications they'll be push pin fasteners that will need to be removed, however for this application they're missing. We'll go ahead and remove the center cargo tray.

Trailer Wiring Harness Installation - 2006 Toyota Highlander

Today, on our 2006 Toyota Highlander, we'll be installing the Tow Ready T-OneVehicle Wiring Harness with 4 Pole Trailer Connector, part number 118413.First, before we install our Tow Ready harness, we'll need to access themanufacturers wiring. So, we'll start by opening up the rear cargo door and removingthe rear cargo mat. Then we'll remove the corner covers for the rear storagecompartments and lift up the center compartment. Now, we'll remove the two pushpinfasteners, securing the center section in place. Here we'll be using an interior trimpanel tool, but you can also use a flat bladed screwdriver. Now, with the two fastenersremoved, we'll go ahead and pull the tray up out of the way and set it aside forreinstallation later.

Trailer Wiring Harness Installation - 2006 Toyota Highlander

Today on this 2006 Toyota Highlander, we're going to install part number 118248from Tow Ready. The first step is to go ahead and remove the interior panels to get toour wiring harness. We'll have to remove the access panels, the threshold, and trunk floorpanels and trays. We'll go ahead and locate the port on the driver's side. Somevehicles have a cap. We'll remove the cap if necessary, and then we'll go ahead andinstall the T1 wiring harness.

see all 252 Toyota Highlander videos       

Stay Connected

Subscribe to email newsletter


privacy - we don't send unsolicited email reviews

All images, layout and content copyright