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Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers

Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers

Item # TK22FR
Our Price: $26.04
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Shipping Weight: 0.27 lbs
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Install your electric brake controller quickly and easily with this custom wiring adapter. Simply plug one end of the adapter into your brake controller and then plug the other end into the built-in harness beneath your vehicle's dash. 1-800-940-8924 to order Tekonsha accessories and parts part number TK22FR or order online at Free expert support on all Tekonsha products. Great prices and Fastest Shipping for Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers. Accessories and Parts reviews from real customers.
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  • Reviews (35)
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Tekonsha Accessories and Parts - TK22FR

  • Trailer Brake Controller
  • Wiring Adapter
  • Plugs into Brake Controller
  • Tekonsha
  • Vehicle Specific

Install your electric brake controller quickly and easily with this custom wiring adapter. Simply plug one end of the adapter into your brake controller and then plug the other end into the built-in harness beneath your vehicle's dash.


  • Wiring adapter eases installation of your electric brake controller
  • Custom connector end plugs into the built-in port beneath the dash of your vehicle
  • Other end plugs into the back of your electric brake controller
    • Compatible time-delayed brake controllers: Draw-Tite Activator I (5100), Draw-Tite Activator II (5500), Draw-Tite Activator III (5520) and Tekonsha PowerTrac (39523)
    • Compatible proportional brake controllers: Tekonsha Prodigy (90185), Tekonsha P2 (90885), Tekonsha P3 (90195), Tekonsha Primus IQ (TK90160) and Tekonsha Voyager (39510)
  • Limited 1-year warranty

Installation of Tekonsha Brake Controller Adapter

This adapter plugs into the 4-pin connector on your vehicle's built-in brake control wiring harness. The harness is located near the dash.

To install your electric brake controller you need to connect the wiring of the controller to your vehicle. Certain manufacturers offer pre-wired options, typically known as tow packages, wherein these wires are run for you from the dash to the trailer connector on the back of your vehicle. Often, a brake controller wiring harness is included with your tow package. This harness plugs into a port beneath your dash and connects to the four wires of the brake controller. If, however, you have a brake controller with a plug in place of the four loose wires, you can use the Tekonsha adapter.

This adapter requires no hardwiring. It is designed to plug directly into your electric brake controller for the simplest installation possible. Because there are no wires to connect, installation is not permanent. You can unplug and remove your brake controller at any time and securely stow it away.

3072-P Tekonsha Brake Control Wiring Adapter with 2 Plugs

Installation Details TK22FR Installation instructions

This Product Fits The Following Vehicles

Customer Satisfaction Score:

Customer Reviews

Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - TK22FR

Average Customer Rating:  4.6 out of 5 stars   (35 Customer Reviews)

Install your electric brake controller quickly and easily with this custom wiring adapter. Simply plug one end of the adapter into your brake controller and then plug the other end into the built-in harness beneath your vehicle's dash.

2019 Volkswagen Atlas

I replaced my old VW Atlas with a newer one (with tow package). So I needed a way to connect my old Takonsha P3. I bought the above harness, but when I went to install it, I realized the in car harness was micro and the one from etrailer was normal sized. So I couldn’t plug in the connector. I ended up having to cut the VW and etrailer cables, connect, and solder them. I mean, I haven’t seen the actual correct fitting cable and this one made life at least a bit easier. Just be aware, that if you have a micro connected VW side, you will still have to cut. I’ve bought many things from etrailer and they are great.



After one year everything has been working great.

2015 Porsche Cayenne

Super easy to use! Vehicle chassis connector on my 2015 Cayenne Diesel was up higher than expected - had to look up about a foot above the dead pedal area, also above the OBD2 connector - but it was there and easily accessible. Harness was long enough to allow flexibility in mounting the controller in a good location.


Once again, etrailer came through for me. Needed parts to share a brake controller to 2 two vehicles. All came as expected and did the trick. 4-5 different transactions now, and always a good experience. Thanks etrailer!


I'm disipointed that the shipment was not deleivered in a timely maner. I requested expided shipping when ordered but was not informed that it is at your descrestion when it actually ships. If I was informed that shipping was going to be delayed I would have canceled the order. The parts did arrive after we left on our adventure. I had my son overnight to us at a cost of $[XX]. This does not make me a happy camper. Your org has failed me. I think you could do better.


Plug and play with factory trailer harn ess


I needed a trailer harness for a Porsche and etrailer had it in stock. The sales associate was very knowledgeable and friendly. I got the harness in just a few days. Thanks!


Necessary to plug and play with brake c ontroller.


Not much to say other than it’s well made and does the job!


Excellent product eliminates the need to track down and cut any existing wires. This is a must have

2015 Volkswagen Touareg

Shipped quickly and was the exact fit. Thanks

2019 Volkswagen Atlas

It doesn’t fit my vehicle as advertised.

Mike L.


If your Atlas doesnt have the factory tow package, it might not be equipped with the brake controller connector

Volkswagen Touareg

I was not sure if this would work,but it worked great.
I will recommend this to all Touareg owners that get a P3.
I am going to put my Happy Camper hat back on.


Didn't fit. Completely wrong plug for my 2018 atlas. They refunded my money.


Very easy to use to install


Perfect fit into the factory plug on an Audi 2008 Q7

Audi Q7

This adapter made the installation on the audi q7 a breeze.


2019 Porsche Cayenne

2019 Audi Q7






2015 Volkswagen Touareg


Show More Reviews

See what our Experts say about this Tekonsha Accessories and Parts

  • Troubleshooting "Power Loss" Error Message Installing Tekonsha Prodigy P3 on 2019 VW Atlas
    Yes, it does sound like the issue is on your 2019 Volkswagen Atlas but I do recommend checking your Tekonsha Plug-In Wiring Adapter # TK22FR is wired correctly. This could cause the issue you are getting with the Tekonsha Prodigy P3 # 90195 as well. You can see where the wiring goes into the connectors on the product page. Be sure the terminals are fully seated as well and not pushing out of the connectors. Then you should start with the ground side as that wire will be more easily traced...
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  • 2018 Audi Q7 with Tow Package Brake Controller Recommendation
    I have the perfect solution for you with the Redarc Tow-Pro Elite # RED44FR and Plug-In Wiring Adapter # TK22FR. To connect the Redarc to the adapter you will cut off the connector on the adapter that has the pins in a row instead of a box and then splice the pigtail from the Redarc to the wires on the adapter color for color. I really like the Tow-Pro Elite because it has proportional and time-delay braking options for different towing situations plus everything about the controller can...
    view full answer...
  • Is There Plug-In Wire Harness For Prodigy P3 Brake Controller on 2020 Audi Q7 w/ Tow Package
    I certainly don't blame you for not wanting to splice any wiring, and I can verify for you that there is indeed a plug-in wiring harness for the P3 brake controller and your 2020 Audi Q7. What you will need are the following: - Tekonsha Prodigy P3 Trailer Brake Controller # 90195 - Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers # TK22FR You made a superb choice with the Prodigy P3 because it combines a high level of performance with reliability and ease of use. And since...
    view full answer...
  • Brake Controller Recommendation for 2017 Volkswagen Touareg
    For your 2017 Volkswagen Touareg the Prodigy P2 brake controller part # 90885 would be an excellent choice as it is widely considered to be the best controller that is also very reliable. To install it you'd just need the part # TK22FR which plugs into a factory port on your vehicle since it has the factory 7-way. The P2 is a proportional brake controller which means that the harder you apply the vehicle brakes the harder the trailer brakes will apply.
    view full answer...
  • Brake Controller Recommendation for 2019 Volkswagen Atlas with Factory 7-Way
    Your 2019 Volkswagen Atlas has brake controller wiring but it does not currently have a brake controller installed in it. Rarely do vehicles have factory brake controllers and it's basically only trucks that do. Reason being lighter duty vehicles typically tow trailers without brakes so they aren't needed as often. So you'd need a brake controller like the Brake EVN # TK63VR which works really well and is very reliable and the install harness part # TK22FR which is custom fit for your...
    view full answer...
  • Finding Stoplight Circuit on 2018 Volkswagen Atlas for Brake Controller Install
    Your 2018 Volkswagen Atlas has factory brake controller wiring that you can use the part # TK22FR to attach to which has the stoplight circuit covered. Normally to pull off what you are wanting to do you would use a circuit tester like the part # PTW2993 to test all of the wires that run to the stoplight switch till you find one that has voltage only when the brakes are applied. We haven't installed a brake controller on your vehicle yet so we don't know the wire color or how to get through...
    view full answer...
  • Can Redarc Tow-Pro Liberty Be Installed In 2022 Porsche Cayenne?
    You sure can! You'll just need the following harness and adapter to get the Redarc Tow-Pro Liberty # RED24FR installed in your '22 Porsche Cayenne: Adapter # 331-TPH-017 Brake Controller Harness # TK22FR This will allow for a plug-and-play installation in your vehicle.
    view full answer...
  • Parts Needed To Install Tekonsha Prodigy P2 On a 2009 Porsche Cayenne With Tow Package
    I have linked the Technical Bulletin below for installing a Tekonsha Prodigy P2 # 90885 on your 2009 Porsche Cayenne with the factory tow package. You will need the Plug-In Wiring Adapter # TK22FR along with the Relay # BL63VR to wire the connector as seen in the bulletin by splicing into the red wire on the adapter.
    view full answer...
  • 2018 VW Atlas 7-Pin Round Vehicle Connector and Brake Controller for Use w/ a 6-Way Adapter
    Thanks for the picture! It looks like your 2018 VW Atlas has been wired for a 7-way and has everything but the actual 7-way connector. To use the Hopkins Endurance Multi-Tow Trailer Connector Adapter - 7-Way to 6-Way, 5-Way or 4-Way item # HM47570 you will need the Hopkins Endurance Quick-Install 7-Way Trailer Connector item # HM40940. Both of these combined will give you a 6 pin round and a 4-pin flat connector. I have linked a review video that you will want to watch when connecting your...
    view full answer...
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  • Do I Need A LED Bulb Out Adapter When Using A Brake Controller On my 2012 Porsche Cayenne?
    The Curt 7-Way Trailer Adapter # C57003 is only needed for trailers that have LED taillights. There are internal resistors that will make the computer on your 2012 Porsche Cayenne sense that it is connected to a trailer as the LED light do not draw as much power as incandescent bulbs. If your trailer does not have LED taillights then the adapter is not needed. I recommend using the Tekonsha Prodigy P3 Trailer Brake Controller # 90195 with the Tekonsha Plug-In Wiring Adapter # TK22FR on...
    view full answer...
  • Does 2018 Volkswagen Atlas without Tow Package Come with Brake Controller Wiring
    Our understanding of the 2018 Volkswagen Atlas that does not come with the tow package is that the wiring isn't present from the front of the vehicle to the back. There might be some of the brake controller wiring behind the panel like you mentioned but we could only really recommend you test the connector for voltage with a tester like part # PTW2992. You might get lucky and the power wire and stoplight circuit are present there but it's hard to say. You could use the # TK22FR plugged...
    view full answer...
  • Recommended Hitch and Wiring Harness for a 2016 Audi SQ5
    I would be happy to help you. For a Draw-Tite Hitch on your 2016 Audi SQ5 you will want item # 75940. This hitch is custom fit and bolts directly to your Audi's frame with included hardware. To add a brake controller you will need two separate wiring harnesses because you will need to add a 7-way to plug the trailer into. The first harness you will need is the Curt T-Connector item # C56404. This custom-fit T-connector plugs into your vehicle's wiring harness, which is located in your...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Wilson B
Updated by:
Wilson B
Employee Mike S
Written by:
Mike S

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