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Tekonsha Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In

Tekonsha Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In

Item # 3031-P
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Tekonsha Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In Plugs into Brake Controller 3031-P
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Install your electric trailer 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 port beneath your vehicle's dash. Call 800-298-8924 to order Tekonsha accessories and parts part number 3031-P or order online at etrailer.com. Free expert support on all Tekonsha products. Guaranteed Lowest Price and Fastest Shipping for Tekonsha Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In. Accessories and Parts reviews from real customers.
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Tekonsha Accessories and Parts - 3031-P

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

Install your electric trailer 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 port beneath your vehicle's dash.


Features:

  • Plug-in wiring adapter allows for quick, simple installation of your electric trailer brake controller
  • No cutting or splicing required
    • 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 with time-delayed and proportional brake controllers from TrailerMate, Draw-Tite, and Tekonsha
    • Brake controller must have built-in plug for adapter to connect - will not work on controllers with pigtail wiring harnesses
  • Limited 1-year warranty


Installation of Tekonsha Brake Controller Adapter

To install your electric brake controller, you need to connect the wiring of the controller to your vehicle. Certain auto manufacturers offer pre-wired options, typically known as tow packages, wherein wiring is run for you from the dash to the trailer connector on the back of your vehicle. When this is done, a port is installed at your dash so that you can easily plug in a brake controller.


This adapter plugs into the connector behind your vehicle's dashboard. The exact location of the plug may vary depending on your year, make, and model of truck.


No hardwiring is required to install this adapter. After you plug it into the factory port, you simply plug the other end of the adapter directly into your electric trailer brake controller. Because there are no wires to connect, installation is not permanent. You can unplug and remove your brake controller at any time to transfer it to another vehicle or securely stow it away.



3031-P Tekonsha Brake Control Wiring Adapter with 2 Plugs - Toyota

Replaces Tekonsha 3017-P

Installation Details 3031-P Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

Tekonsha Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In - 3031-P

Average Customer Rating:  4.9 out of 5 stars   (150 Customer Reviews)

Install your electric trailer 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 port beneath your vehicle's dash.

- 3031-P
by:

Everything came in the package and the product came earlier than I expected. Installing it was fairly easy. However the only thing that proved difficult was Torquing the ball down on the hitch head which luckily [RV dealer] was good enough to do that for me. I am happy With the product and looking forward to using it. 765567



- 3031-P
by:
2017 Toyota Tacoma

This product makes the installation of a brake controller so easy that almost anyone could do it. If your truck comes with the wiring from the brake pedal to the trailer hitch already installed and you have your brake controller, this is all you need. Plug both ends in and your trailering. 574839



- 3031-P
by:
2018 Toyota Tacoma

This is the proper unit for a 2018 Tacoma. the hardest part is finding the Factory plug, which is located behind the drivers Kick plate. connect the Ground to the 10 mm bolt that all the Dash connections are made to in the same place. 490874



- 3031-P
by:
2018 Toyota Tacoma

I bought this harness for my Toyota Tacoma 2018 because I installed breack controller Primius IQ and fit very Good. I’m so glad with the product, and etrailer is really fast to delivery. 655736



- 3031-P
by:
2017 Toyota Tacoma

If you want to make hooking up a controller super easy...this is the way to do it! Get this harness, it'll save you time and a lot of frustration. This went to my 2017 Toyota Tacoma. Plugged it in and screwed down the white wire to ground. Super easy. Hooked up just fine and got trailer brakes as soon as it plugged in. I'd do it again if I ever need to. :) 566265



- 3031-P
by:
2018 Toyota Tacoma

Made the hook up of the controller very easy. Thanks to Kim for all her help. 558564



- 3031-P
by:
2018 Toyota Tacoma

Purchased this connector to use my existing brake controller in a new truck. Like the ease of installation; a fool proof, no brainer. 472791



- 3031-P
by:
Toyota

Exactly what I needed to hook up the Tekonsha P3 brake controller! Plug & Play to my 2019 Toyota Taco! Wiring harness for Taco and Tekonsha P3 controller and now I’m good too go! 854345



- 3031-P
by:
2020 Jeep Grand Cherokee

As usual I order all my towing items from e-trailer,I bought a new 2020 tundra with the stock towing pkg,i had bought a nice P3 brake controller earlier but didnt put in my jeep grand cherokee.The P3 is way better than a stock factory toyota controller so i wanted to use the P3.I searched the web and of course the forums etc suggested e-trailer had a wiring harness to replace the factory controller.Easy to instal as its plug and play with a white ground wire and thats it,no splicing or figuring out what wires go where.Im sold on e-trailer and wont go to big box stores or [email protected]&%on for cheap stuff lol.Like they say,pay me now or pay me later. 848119



- 3031-P
by:

Always satisfied every time I buy something from etrailer 845457



- 3031-P
by:

Get this cable for a simple, plug-in installation. You’ll spend more time hunting for the junction already wired into the truck harness than installing your brake controller. And after installed, no worries on loosening wire connections or electrical tape wrap unraveling. 837556



- 3031-P
by:

Works as advertised and I couldn't ask for more. I'm not mechanically inclined nor am I good with tech so I had it installed on my Tacoma by the Toyota dealer. Then had it adjusted/calibrated by Oliver Travel Trailers in Tenn. when we picked up our trailer. It's been used for about 3500 miles and it is in perfect sync with our truck. Buy it. You won't be disappointed. 831079



- 3031-P
by:

Fit was good and made installing the brake controller a snap. 828693



- 3031-P
by:
2017 Toyota Tacoma

quick shipping have to install . will update review once in use 824646



- 3031-P
by:

Easy installation and easy to operate I use it on multiple trailers and works well on all of them thanks for suggesting this product to me 824510



- 3031-P
by:

It was super easy to install. Just plug and play... 824389



- 3031-P
by:

Great price and easy installation! 820770



- 3031-P
by:

Great product. Ordered a brake controller and was exactly as described. Installation directions were detailed, easy to follow and customer service was excellent! 815538



- 3031-P
by:

Product is great so far. nothing to say 807844



- 3031-P
by:

This made the installation super simple. If your Tacoma already has the 7 pin plug on the back, then you can use this to just plug in the brake controller with this. You have to pop of the plastic kick plate, but no tools are required and mine when on and off easy. Once I figured that out, the whole brake controller installation took about 15 minutes using this wiring harness. 800144



- 3031-P
by:

Works great! Easy install. Plugged right in to the factory plug. 799512



- 3031-P
by:

I received the brake controller quickly and installed it the same day thanks to the easy directions. Thanks 799098



- 3031-P
by:
2015 Toyota Tundra

This adapter couldn’t be easier. It fit my 2015 Tundra perfectly. Plug and play, no splicing. 799057



- 3031-P
by:

Great Product!!! 796032



- 3031-P
by:

Easy to install for someone has never seen a brake controller. Worked well 795786


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Ask the Experts about this Tekonsha Accessories and Parts

  • Brake Controller Wiring Adapter Location for 2019 Toyota Tacoma
    The correct wiring adapter for the Prodigy P3 Brake Controller # 90195 your 2019 Toyota Tacoma is the Tekonsha Custom Wiring Adapter # 3031-P. You will only need to plug it in to the connector underneath and to the left of the steering column; it is behind a kick panel and taped to another harness near the emergency brake pedal, as you can see in the accompanying photo. You have made a great choice with the Prodigy P3 # 90195 because it is one of the most effective and easy-to-use brake...
    view full answer...
  • Wiring Adapter for Tekonsha Brake Controller in 2017 Toyota Tundra
    The correct wiring adapter for your 2017 Toyota Tundra and a Tekonsha brake controller is the Tekonsha Custom Wiring Adapter # 3031-P which will work with your truck and the Prodigy P3 # 90195, Prodigy P2 # 90885, Primus IQ # TK90160, Voyager # 39510 and PowerTrac # 39523 I believe you are asking about a wiring adapter for a Tekonsha brake controller in your 2017 Toyota Tundra; there is not a p3004 so I think you may have been referencing the Plug-In Wiring Adapter # 3040-P which is...
    view full answer...
  • Where is Brake Controller Install Connector for 2019 Toyota Tacoma
    The brake controller install harness part # 3031-P would be the correct part number for your 2019 Toyota Tacoma if you have a Tekonsha controller. On your vehicle it will be located underneath and to left of the steering column, behind kick panel taped to another harness near the emergency brake pedal. There will be a white 10-pin connector that mates with the one on the adapter. Check out the picture I attached as well that shows where you'll find them. The brake controller I recommend...
    view full answer...
  • Plug-In Brake Controller Harness for a 2018 Toyota Tacoma
    Yes, the Tekonsha Custom Wiring Adapter for Trailer Brake Controllers part # 3031-P is a plug and play harness that will allow you to install the Tekonsha Prodigy P3 Trailer Brake Controller part # 90195 on your 2018 Toyota Tacoma without any cutting or splicing. You will however need to ground the white wire to a bare metal surface with a self-tapping screw like part # 101131802.
    view full answer...
  • Brake Controller Installation on 2018 Toyota Tacoma
    Your photo shows the OBD-II connection. This port is used for vehicle error codes and diagnostics. If your 2018 Toyota Tacoma has a factory 7-way trailer connector, then the Tekonsha Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In # 3031-P will plug into a wiring harness found behind the plastic molding on the far left side under the driver's side dash. I've attached a photo to assist as well as the installation details for your Tacoma. If you do not have the factory...
    view full answer...
  • What is the Difference Between the Tekonsha Adapters # 3031-P and # 3017-P for a 2017 Toyota Tacoma
    The only difference between the Adapter # 3031-P and Adapter # 3017-P is that the # 3031-P has an additional white wire for grounding on your vehicle. Both are confirmed to fit your 2017 Toyota Tacoma with the factory 7-Way and will allow you to use a brake controller like the Tekonsha Prodigy P3 # 90195. Out of both of them I recommend going with the part # 3031-P as it is the updated version of the # 3017-P from Tekonsha. If you haven't already decided on a brake controller then...
    view full answer...
  • Recommended Plug-and-Play Brake Controller for 2019 Toyota Tacoma
    The brake controller I highly recommend for your 2019 Toyota Tacoma is the Draw-Tite I-Command # 5535. This will not require you to do any type of splicing, you only need to plug it in with the Tekonsha Custom Wiring Adapter for Trailer Brake Controllers # 3031-P I recommend the I-Command because is a great value due to its unique combination of quality and cost-effectiveness. The I-Command is going to give you smooth braking, is easy to use, and has a bright display that is simple...
    view full answer...
  • Why Does Brake Controller Harness for 2018 Toyota Tacoma Have Ground Wire
    That's a common question and the reason Wiring Adapter for Trailer Brake Controllers # 3031-P has a ground wire on it is because some models of Tacoma and Tundra, such as your 2018 Toyota Tacoma, have an insufficient ground at the factory connection and this adapter remedies that potential issue. While there are wireless options like the Curt Echo # C51180, I very strongly recommend going with the Prodigy P3 # 90195. The P3 is easy to use, levels automatically, has constant diagnostic...
    view full answer...
  • Brake Controller Wiring Harness for 2020 Toyota Tacoma
    You are correct, the right brake controller harness for the 2020 Toyota Tacoma is indeed the # 3031-P. The harness plugs into the white connector located behind the driver's side kick panel. I've provided a photo showing where the connector is located.
    view full answer...
  • Where to Mount Tekonsha Voyager in Interior of 2019 Toyota Tacoma TRD
    I looked up an interior picture of your 2019 Toyota Tacoma and there's an open area in front of the gear shift under the HVAC controls which would be the best place to install the Tekonsha Voyager # 39510 with the custom install harness for your truck part # 3031-P.
    view full answer...
  • Tekonsha Brake Controller Installation in 2016 Toyota Tacoma
    The Tekonsha brake controller wiring adapter specified for your 2016 Toyota Tacoma with a factory-installed 7-way socket at the rear bumper is part # 3031-P. This harness connects a Tekonsha controller such as the P2 # 90885 to the factory port. On vehicles with the factory 7-way usually this port is located behind the left kick panel, above the e-brake pedal. It may be taped to other wiring and/or tucked up out of easy reach. Now if your truck does not have the factory 7-way you may...
    view full answer...
  • Does Brake Controller Install Harness for 2015 Toyota Tundra Have Extra Ground Wire
    The brake controller harness part # 3031-P which is the correct one to install the Prodigy P3 part # 90195 in your 2015 Toyota Tundra does have a ground wire that needs to be ran outside of the harness as well. We drilled a hole on the firewall when we installed the ground strap as we found that to be the easiest when we used this harness to install a controller in a 2013 Tundra like yours. See video I attached.
    view full answer...
  • Brake Controller and Pigtail Wiring Harness for a 2017 Toyota Tacoma
    We spoke with our contact over at Tekonsha and they told us that brake controller wiring harness # 3031-P is a fit for the 2017 Toyota Tacoma. If you do not already have a brake controller I recommend the P2 # 90885 because it is easy to set up and use and it is reliable.
    view full answer...
  • Trailer Brake Controller Wiring Connector Location on 2015 Toyota Tundra
    The brake controller connector is clipped to the back side of a panel located just to the right of the ignition key. You'll need to lower the panel and unclip the connector from the rear of the panel, then feed it down behind the panel so it exits out the bottom of the dash. I've edited a photo showing the location of the connector, and I've linked you to the install instructions for the # 3031-P. I've also linked you to our Brake Controller FAQ article, which contains more information...
    view full answer...
  • Installing Tekonsha Brake Controller on a 2016 Toyota Tacoma Without Factory Tow Package
    I can help you understand your 2016 Toyota Tacoma a little more and help you install that Tekonsha brake controller. Since your Tacoma doesn't sound like it came with the factory 7-way then you will not have a plug in location for your brake controller like the # 3031-P uses, this is typically part of the upgraded "tow package". The good news is you are off to a good start with the Curt 4-way wiring harness # C56349. We just need to take that connection and adapt it to the 7-way...
    view full answer...
  • Where Is Brake Controller Install Harness on 2017 Toyota Tacoma
    On a 2017 Toyota Tacoma the location to install the # 3031-P is behind the kick panel to the left of your left foot. I attached a picture. You'll need to pull off the kick panel.
    view full answer...
  • Will the Tekonsha Plug-In Wiring Adapter Part # 3017-P Fit a 2016 Toyota Tundra
    The Tekonsha Plug-In Wiring Adapter for Electric Brake Controller part # 3017-P will fit your 2016 Toyota Tundra and allow you to install the Tekonsha Prodigy P3 Trailer Brake Controller part # 90195. However, since its release there has been reports of melting wires so a new version the Tekonsha Custom Wiring Adapter for Trailer Brake Controllers part # 3031-P has been released with an extra ground to combat this issue.
    view full answer...
  • Recommended Trailer Brake Controller Harness for 2017 Toyota Tacoma
    As long as your 2017 Toyota Tacoma has a factory 7-Way connector at the rear of the truck, the Plug-In Adapter # 3031-P that you referenced is the correct brake controller harness for your Tacoma. One end of the adapter will plug into the controller itself and the other end will connect to the built-in port beneath the truck's dash. For the trailer brake controller, I highly recommend the Tekonsha Prodigy P3 # 90195. This is our most popular brake controller and will do an excellent...
    view full answer...
  • Brake Controller Recommendation for a 2016 Toyota Tundra with Factory 7-Way Connector
    For your new 2016 Toyota Tundra with the factory 7-Way trailer connector I recommend the Tekonsha P2 brake controller # 90885. This is one of our most popular controllers because it is easy to set up and use and it is reliable. You will also need wiring harness # 3031-P to plug the controller into the truck. To reach the mating factory connector, first locate the notch in the access panel in the center of the dash, near the driver's side. Using a trim panel puller, such as # PTW80647,...
    view full answer...
  • Brake Controller and Install Harness Recommendation for 2017 Toyota Tacoma
    To install the Prodigy P3 brake controller part # 90195 in your 2017 Toyota Tacoma will require you to use the install harness part # 3031-P which is a confirmed fit.
    view full answer...
  • Which Brake Controller Harness Fits 2018 Toyota Tacoma
    There isn't a brake controller install harness 3931-P so I'd assume you maybe meant to type 3031 and 3031-P. Which there really isn't a difference. For your 2018 Toyota Tacoma the harness you need to install a brake controller is the # 3031-P. For a brake controller I would recommend the Prodigy P3 Brake Controller part # 90195. This is our best selling brake controller because of how well it works and how easy it is to setup. This is a proportional brake controller that senses the...
    view full answer...
  • Brake Controller Harness Location for 2017 Toyota Tacoma
    The brake controller install harness on your 2017 Toyota Tacoma can be hard to find but the part # 3031-P will fit it. If you check out the picture I attached you will see where a customer found the connectors in a Tacoma just like yours.
    view full answer...
  • Location of Brake Controller Plug on a 2016 Toyota Tacoma TRD Sport Off-Road w/Factory Tow Package
    Great news! I can help you find the brake controller harness on your truck. Since you have a factory tow package on your 2016 Toyota Tacoma you will have a plug for a brake controller in your dash. According to the instructions on the # 3031-P harness for the Proportional Brake Controller P3 # 90195, which I highly recommend, the plug is located above the driver kick panel. I have linked the full set of instructions for the # 3031-P adapter to this page for your convenience. For...
    view full answer...
  • Will Adapter # 3031-P Fit Both P2 # 90885 and P3 # 90195 Controllers for a 2018 Toyota Tacoma
    Yes, the same adapter part # 3031-P for your 2018 Toyota Tacoma is compatible with both the Prodigy P2 # 90885 and Prodigy P3 # 90195 brake controllers. I have attached a picture from the linked instructions that show where the brake controller connector is located on the driver's side of your Tacoma if you haven't already found it.
    view full answer...
  • Will Tekonsha Brake Controller Plug-In Harness # 3031-P Fit All Models of the 2018 Tacoma
    Yes, the Plug-In Harness # 3031-P that you referenced is the correct harness and it will work perfectly on your 2018 Toyota Tacoma (that's not the 4x4) to install a Tekonsha brake controller like the Prodigy P3 # 90195. One end of the harness plugs into the brake controller itself and the other end will plug into the factory port behind the Tacoma's dash. I have attached a short video review on the Prodigy P3 that you can check out as well.
    view full answer...
  • Install Harness Recommendation for Installing a Brake Controller in a 2015 Toyota Tundra
    To install the Prodigy P3 Brake Controller part # 90195 in your 2015 Toyota Tundra with factory tow package you will need to use the install harness part # 3031-P. The 3040-P is not the correct harness for your vehicle.
    view full answer...
  • Installation of Brake Controller Custom Harness on 2018 Toyota Tacoma SR5
    The Tekonsha Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In # 3031-P will connect to your Tacoma's factory harness. The harness will be located underneath and left of the steering column, behind kick panel taped to another harness near the emergency brake pedal. There will be a white 10-pin connector that mates with the one on the adapter.
    view full answer...
  • Can the Tekonsha Wiring Adapter Part 3017-P Work with a Tekonsha Primus IQ Part TK90160
    Yes, the Tekonsha plug-in wiring adapter # 3031-P you referenced will work with your Tekonsha Primus IQ # TK90160. The adapter # 3031-P will plug into the connector behind your 2015 Toyota Tundra's dashboard. A great feature is no hardwiring is required. I included a helpful article for you to view.
    view full answer...
  • Brake Controller Port Location Under Dash Of 2015 Toyota Tundra With Factory Tow Package
    The port used for attaching a brake controller on your 2015 Tundra is located behind the part of the dashboard with the tow/haul button. To reach the connector you will need to locate the notch in the access panel in the center of the dash near the driver's side. You can use a trim panel puller like # ALL648544, and using great care pry the panel loose and remove the panel by unlocking the tabs. The connector you need is behind the panel. The correct harness for your 2015 Tundra...
    view full answer...




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Info for this part was:

Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Edited by:
Lindsey S
Installed by:
Cole B
Written by:
Alexander C
Test Fit:
Robert C
Updated by:
Isabelle B
Video by:
Aidan B

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