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  1. Custom Fit Vehicle Wiring
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  4. Trailer Hitch Wiring
  5. 7 Round - Blade
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Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector

Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector

Item # 22119
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Custom Fit Vehicle Wiring

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22119 - Powered Converter Tekonsha Custom Fit Vehicle Wiring
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Replace the 7-way, RV-style trailer connector on your vehicle with this T-One harness. ModuLite reduces strain on wiring system. Brake controller adapter attaches to included body harness and lets you easily plug in your electric brake controller. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 22119 or order online at etrailer.com. Free expert support on all Tekonsha products. Guaranteed Lowest Price and Fastest Shipping for Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (14)
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Tekonsha Custom Fit Vehicle Wiring - 22119

  • Custom Fit
  • Trailer Hitch Wiring
  • 7 Round - Blade
  • Powered Converter
  • Tekonsha

Replace the 7-way, RV-style trailer connector on your vehicle with this T-One harness. ModuLite reduces strain on wiring system. Brake controller adapter attaches to included body harness and lets you easily plug in your electric brake controller.


Features:

  • Towing prep kit replaces damaged factory 7-way, blade-style trailer connector at the back of your vehicle
    • Enables your vehicle to power your trailer's signal lights
    • Compatible with 4-pole, 5-pole, and 6-pole adapters (sold separately)
  • T-One connects quickly and easily
    • Locate connection point in rear cargo area
    • Splice blue wire into vehicle wiring
    • Run body harness up to car battery
  • Includes ModuLite to ensure that your vehicle's wiring matches that of your trailer
    • Powered module connects directly to battery to avoid overloading vehicle's electrical system
  • Wiring adapter eases installation of your electric brake controller
    • Pigtail end connects to included body harness and vehicle battery
    • Other end plugs into the back of your electric brake controller
      • Compatible proportional brake controllers: Tekonsha P2 (90885), Tekonsha P3 (90195) and Tekonsha Primus IQ (TK90160)


Specs:

  • Maximum amperage:
    • Stop/turn lights: 4.2 amps per circuit
    • Tail lights: 7.5 amps per circuit
  • 1-Year limited warranty


Installation of Tekonsha T-One Connector

This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located inside your rear cargo area. You will have to remove access panels, storage trays, and some interior paneling to access this harness. Once you've plugged in the T-connector, run the body harness up to your car battery, and route the blue wire up to the grommet that leads into the cargo door. Then connect all of the wires per the included instructions.


Once installation is complete, the 7-way connector will be stowed beneath your vehicle. A mounting bracket (sold separately) is recommended to keep the connector secure.


It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 7-pole connector itself - to help prevent corrosion.


ModuLite Powered Tail Light Converter

A ModuLite power module is built into this T-One connector. Because most trailers run on a 2-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's 3-wire system need to be combined so they are compatible with the wiring system of your trailer. This power module functions as a tail light converter to combine the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.


With a ModuLite, your trailer's lights will be powered without overloading your vehicle's electrical system. Because the module draws power directly from your car's battery and bypasses the electrical routes that are used by a basic wiring harness, there is virtually no draw on your tail light circuits.


Installation of Tekonsha Brake Controller Adapter

This adapter hardwires to the body harness that is included in this kit. Just connect the black wire from the brake controller adapter to your car battery, and connect the white wire to a suitable ground. The remaining wires can then be easily spliced into the body harness with the included butt connectors.


This adapter is designed to plug directly into your electric brake controller. Because the harness does not hardware to your controller, installation is not permanent. You can unplug and remove your brake controller at any time and securely stow it away.



22119 Tekonsha Replacement Harness with Brake Control Adapter for Factory Tow Package - 7 Pole - Modu-Lite

Installation Details 22119 Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector - 22119

Average Customer Rating:  4.4 out of 5 stars   (14 Customer Reviews)

Replace the 7-way, RV-style trailer connector on your vehicle with this T-One harness. ModuLite reduces strain on wiring system. Brake controller adapter attaches to included body harness and lets you easily plug in your electric brake controller.

by:
2018 Toyota Highlander

This harness, paired with a Tekonsha P3 went in flawlessly to a 2018 Toyota Highlander while following the videos provided on eTrailer’s pages. Very pleased and I’m fully set up with a functioning 7-pin system to pull and control a 2018 Airstream 16RB Bambi. Paired with a Blue Ox WDH. Thank you for providing such great products at great prices.



by:

Neither the installation instructions nor the Tekonsha technician can adequately define which red wire (back of the vehicle) is the proper one for splicing. There are 2 red wires in the bundle of wires specified, same size and color. A local trailer shop also turned down helping complete the installation. The Toyota dealership also declined to work on the situation. The harness is not functional for this reason. There are multiple other accounts from other guys trying to complete the installation relative to this exact issue on the internet.


Comments
That does sound confusing! Some things to look out for are that of the red wires, you will want to choose the one of the single wire that is larger in thickness. Circuit testers, part # 40376
Circuit Tester Kit
$72.64
would be ideal to use to test to make sure you have the correct wire before splicing into it. You can have a friend put the car in reverse and test the wires for the signal to make sure you have the right one. Also, something to keep in mind is that the wiring harness will work without this red wire being installed because many trailers do not need the reverse function. If you watch the 2018 Toyota Highlander install video, you may want to start and the eight minute mark, and you may find it helpful as a visual guide. I hope this helps!
-- Etrailer Expert Brooke M - 08/05/2021

by:

Video instructions were a big help



by:

My mechanic said he called the tech support several times to get a hold of somebody and took almost all day to get the answers. Also the wire harness for the 7 pin was not long enough to install next to the hitch it was about a foot short. Beside that everything work great



by:
2014 Toyota Highlander

This was supposed to be a custom fit for a 2014 Toyota Highlander, however I had to make a number of customizations to make it fit. For example, the length of wires from the 10-pin connector to the grommet was too short and required inserting a 12-18 inch extension (about 4 or 5 wires plus 8 to 10 heat shrink butt connections). The wires from the grommet to the 7-blade plug connection were also too short and required extending all 7 wires about 12 inches (additional 14 heat shrink butt connections required plus a lot of electrical tape to protect it). The grommet was kind of funky - seems like it was installed upside down. I used the old grommet and cut it to allow wires to run through it. The old grommet mounts on the inside versus the outside mount that came with the kit. The length of wire running from the converter box to the battery and brake controller was more than enough. Directions were more of any overview and I had to search for Toyota Service Manual instructions to get specifics for removing trim panels, locating the 10-pin towing connector, and running wires through the firewall (follow the hood release cable that runs between the frame and fender liner). Took longer than expected, but got it to work.



by:

This is a great product. etrailer did the installation. It turned out great. I definitely recommend the product.



by:
2016 Toyota Highlander

arrived this morning! everything looks to be here. Thanks for shipping so quickly!
will let you know how installation goes.



by:

I have received the items I ordered from etrailer and expect to have them installed and used for the first time on 10/21. I can review them after 10/21. I was impressed with how fast my order arrived.



by:

I looked at my order status and it said that it wouldn’t be delivered for 2 to 3 months. I called and they fixed my order and found similar products For the same price that could ship immediately. They were great on the phone and my order arrived a day earlier than I was told. Excellent phone customer service and the product arrived undamaged. Thank you very much!



by:

Works



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by:
2018 Toyota Highlander



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14
14

Ask the Experts about this Tekonsha Custom Fit Vehicle Wiring



  • Is Splicing Into Reverse Lights Necessary if Trailer Does Not Have Reverse Lights
    If you are adding the Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector # 22119 to your 2018 Toyota Highlander and your trailers do not have reverse lights then you do not need to splice into the reverse light circuit. Since it will not be used there would be no reason for you to have to splice into it.
    view full answer...
  • Installation of the OEM Replacement Tow Wiring for 2020 Toyota Highlander
    The Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector # 22119 will have the connectors behind the side trim panels in the cargo area on the driver and passenger side. Farther to the sides behind the trim panels on each side than shown in your photos which only shows the floor trim panel removed.
    view full answer...
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  • Installation of Tekonsha OEM Replacement Trailer Wiring Harness on 2019 Toyota Highlander
    The Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector # 22119 has an 18 gauge blue wire as you stated. This wire is run to the reverse light circuit at your tail lights. It should be a red wire connecting to a harness that is directly connected to a bulb for that reverse light function.
    view full answer...
  • Does Tekonsha Wiring Kit 22119 For 2017 Toyota Highlander Have 25-Amp Fuse
    There is not a 25-amp fuse or fused connection with the Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector # 22119. The kit comes with two 30 amp fuses, a 15 amp fuse, and a 10 amp fuse. The 30 amp fuses are from the battery connection, and the 15 amp fuse is from the wires that are plugged into the factory connector at the rear of your Highlander. The only other thing you will need to add to install the # 22119 is the 10 amp fuse in your...
    view full answer...
    Image 1 for
  • Parts Needed to Install 7-Way on 2018 Toyota Highlander
    To install a 7-way wiring kit on your 2018 Toyota Highlander the # 22119 that you referenced is the correct part number. This plugs in to the wiring your 4-way already plugs into. I attached an install video for this on a similar 2018 Highlander for you to check out as well.
    view full answer...
  • Trailer Wiring Harness Recommendation for 2018 Toyota Highlander
    For your 2018 Toyota Highlander the most reliable trailer wiring harness brand we offer is T-One. So if you need a 4-way connector the kit you'd want is the part # 118449 or if you need a 7-way you'd want the # 22119 which is also a custom fit.
    view full answer...
  • Trailer Wiring Recommendation for 2018 Toyota Highlander
    For your 2018 Toyota Highlander the brand of wiring harness we recommend the highest is the T-One or Tekonsha brand as the converter boxes of these kits are the most reliable of all of the options we offer. So if you need a 4-way you'd want the part # 118449 or the part # 22119 for if you need a 7-way.
    view full answer...
  • 7-Way Trailer Connector For 2019 Toyota Highlander To Tow A Trailer With Brakes
    Yes, I recommend the Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector part # 22119 which plugs into the rear cargo area of the vehicle and extends to the front to plug into a compatible brake controller. The brake controller I recommend is Tekonsha Prodigy P3 part # 90195 which is designed with storable settings if you decide to tow more than 1 trailer in the future. It also has a nice LCD display screen that has easy to read troubleshooting...
    view full answer...
  • Does Brake Controller Have to Install Tekonsha 7-Way for 2020 Toyota Highlander for Lights to Work
    The trailer lighting circuits of the Tekonsha harness part # 22119 that you referenced will be fully functional without having a brake controller installed. Brake controller circuits are totally independent from the light functions.
    view full answer...
  • Locating Red Wire in Rear Cargo Door When Installing Tekonsha Wiring Harness # 22119
    I spoke with my contact at Tekonsha regarding the OEM Replacement Vehicle Wiring Harness # 22119 that you are installing on your 2015 Toyota Highlander. He said that if you found more than one red wire in your cargo door harness, your best option for ensuring that you tap into the correct one is to simply test them for function using a circuit tester like # PTW2993. You are just looking for a reverse light circuit wire. You can have a buddy activate the reverse lights on the vehicle while...
    view full answer...
  • 2020 Highlander Platinum AWD Trailer Wiring Recommendation
    Since your 2020 Toyota Highlander has the factory towing package the correct trailer wiring kit is the part # 22119 which will give you a 7-way harness. This kit (and any other option) does require the harness have the power wire ran from the rear to the front of the vehicle. This ensures that the vehicle wiring and trailer wiring is protected in case of a trailer wiring short. The more inexpensive kits are basically hardwire kits which require you to use a circuit tester to test all...
    view full answer...
  • How To Add a 7-Way Trailer Connector To A 2019 Toyota Highlander
    The Tekonsha OEM Replacement Vehicle Wiring Harness part # 22119 is the correct option to add a 7-way trailer connector to a 2019 Toyota Highlander without tow package. If you don't already have a compatible brake controller I recommend the Tekonsha Primus IQ Trailer Brake Controller part # TK90160.
    view full answer...
  • Is a Brake Controller Needed for a 2019 Toyota Highlander
    It would be a good idea to use a brake controller while towing with a 2019 Toyota Highlander especially if the trailer is setup for them. That said, it may or may not be required. There are certain laws and regulations for this which vary by state. I cannot comment on this but most state agencies would be glad to inform. There are also requirements from the vehicle manufacturer on this. This is best outlined on page 222 of the manual. The Tekonsha Primus IQ Trailer Brake Controller part...
    view full answer...
  • Correct Trailer Connector for Boat Trailer with Surge Brakes and Electric Lockout
    In most cases, boat trailers with surge brakes and an electric lockout solenoid use a 5-way flat trailer connector. In which case, you will need to install the Curt Trailer Connector Adapter part # C57187 and that's it. This will plug into the 4-way and then splice into the reverse light circuit.
    view full answer...
  • 7-Way and 4-Way Trailer Wiring Harness Recommendation for 2015 Toyota Highlander
    The big difference between 7-way and 4-way trailer wiring applications is if the trailer has brakes. If the trailer does not the 4-way is the common connector style but if the trailer does have brakes the 7-way is used. To cover everything the 7-way is the way to go for your 2015 Toyota Highlander with the kit part # 22119. You can then replace the inluded 7-way socket with the part # HM40975 and you'd have both connectors so you know you'd be covered.
    view full answer...
  • Adding 7-Way Trailer Connector to 2016 Toyota Highlander
    For your 2016 Toyota Highlander XLE, I recommend using the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118449 to give you the basic 4 way function, then I recommend using the # ETBC7 to give you the 7-way connector along with 4-way connector and the wiring needed to complete the other functions. This will set you up for the brake controller of your choice that you will then hardwire using the included circuit breakers and wiring. I've attached a video to assist. Alternatively...
    view full answer...
  • 7-Way Trailer Wiring Connector Recommendation for 2018 Toyota Highlander
    To install a 7-way trailer wiring connector on your 2018 Toyota Highlander I recommend the Tekonsha kit part # 22119 which comes with everything needed to install the 7-way and make it fully functional. Only thing else you'll want is a mounting bracket to secure the connector and for that you'd want the part # PK12711U.
    view full answer...
    Image 1 for
  • Mounting Bracket for Tekonsha OEM Replacement Vehicle Wiring Harness on 2014 Toyota Highlander
    For the Tekonsha OEM Replacement Vehicle Wiring Harness # 22119 you need the 2 inch Pollak Mounting Bracket # PK12711U. You can see the dimensions of this bracket in the accompanying photo.
    view full answer...
    Image 1 for
  • Why Is Pigtail Wiring Harness with Diode for Brake Controllers Required for a 2019 Toyota Highlander
    The Pigtail Wiring Harness with Diode for Tekonsha and Draw-Tite Brake Controllers part # 7865 is required for a 2019 Toyota Highlander no matter which trailer connector or brake controller you're using as the diode is on the stop light switch connection which splices into the vehicle's brake pedal. This connection is independent of the harness or controller. The Tekonsha Prodigy P2 Trailer Brake Controller part # 90885 and Tekonsha OEM Replacement Vehicle Wiring Harness part # 22119 are...
    view full answer...
  • 2016 Toyota Highlander Hybrid 7-Way Wiring with Rear Battery
    Yes, you would just tie into the battery at the rear of your 2016 Toyota Highlander Hybrid with the 7-Way Wiring Harness # 22119 for the different circuits that need the constant 12V power. The fuses are required for the installation to protect the wiring from overheating which could cause a fire. For mounting the 7-Way on the back of your Highlander I recommend the Mounting Brackets # 18138 and # C57202. These will allow you to mount the 7-way on the receiver hitch without having to...
    view full answer...
  • Trailer Running Lights Kicking Off When Brakes Are Applied On A 2019 Highlander
    As you have checked all the trailer grounds and updated the lights to LED, the only other thing I can suggest before replacement will be the ground on your Highlander. It is odd that the issue only happens some of the time, so it could be this as well. If this ground looks good though, then your Tekonsha # 22119 has indeed gone bad and will need to be replaced. Especially since nothing else has been changed.
    view full answer...
  • Routing Power Wire Through Firewall on 2021 Toyota Highlander
    You will want to select the grommet around the steering column and feed through that. The correct Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter for a 2021 Toyota Highlander is # TK57VR. Please note the linked installation video.
    view full answer...
  • Wiring Needed to Tow a Trailer with a 7-Way with a 2018 Toyota Highlander
    If your 2018 Toyota Highlander didn't come with the factory tow package then I highly recommend installing the Tekonsha OEM Replacement Vehicle Wiring Harness # 22119. This comes with everything that you need for a fully functioning 7-Way plus it includes an adapter so that you can install a Tekonsha brake controller. To mount the 7-Way connector to your trailer hitch I recommend using the mounting bracket # PK12711U and the no-drill unit # 18140. I recommend using the Tekonsha Prodigy...
    view full answer...
  • Trailer Hitch Recommendation for 2018 Toyota Highlander that Allows Full Size Spare
    For your 2018 Toyota Highlander the Draw Tite hitch part # DT84MR is what I recommend for you as it allows you to keep the full size spare like you want and because it has a concealed crosstube which means it will be less visible than other hitches. See attached picture and install video for more info. If you need trailer wiring the 4-way the kit you'd want is the part # 118449 or if you need a 7-way part # 22119. Both of these kits have the most reliable converter boxes around so they...
    view full answer...
    Image 1 for Image 2 for


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Info for this part was:

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Edited by:
Lindsey S
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
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