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  1. Trailer Brake Controller
  2. Tekonsha
  3. Electric
  4. Electric over Hydraulic
  5. Proportional Controller
  6. Up to 4 Axles
Tekonsha Prodigy P3 Trailer Brake Controller w/ Custom Harness - Up to 4 Axles - Proportional
Tekonsha

Tekonsha Prodigy P3 Trailer Brake Controller w/ Custom Harness - Up to 4 Axles - Proportional

Part Number: TK78UR
$211.46
Trailer Brake Controller

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The Tekonsha P3 is a brake controller beloved for its reliability and useability. You're able to save your settings and multiple profiles. It's easy to install, and with the custom harness, it's plug-and-play. Great Prices for the best trailer brake controller from Tekonsha. Tekonsha Prodigy P3 Trailer Brake Controller w/ Custom Harness - Up to 4 Axles - Proportional part number TK78UR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Tekonsha Trailer Brake Controller - TK78UR

  • Electric
  • Electric over Hydraulic
  • Proportional Controller
  • Up to 4 Axles
  • Tekonsha
  • Under-Dash
  • Under-Dash Box
  • Plug-In
  • LCD Display
  • Multiple Trailers

The Tekonsha P3 is a brake controller beloved for its reliability and useability. You're able to save your settings and multiple profiles. It's easy to install, and with the custom harness, it's plug-and-play.


Features:

  • Proportional - Smooth, safe, and good for your brakes long-term
  • Great for a fleet - Save and customize multiple profiles
  • Installs quickly - Mount the bracket to the dash, then attach the unit to the bracket
  • Plug-and-play - Custom harness included
  • Simple controls - Large, accessible buttons for all your settings
  • Easy-to-read display includes diagnostics - Straight-forward messages get you to the root of the problem quickly
  • Safe - Built-in safeguards protect vehicle, trailer, and controller
  • Quick disconnect - Easy to unplug and remove the controller when you don't need it
  • Automatic leveling - Must be parallel with direction of travel and horizontally level


Specs:

  • Application: trailers with up to 4 axles (8 brake assemblies)
    • Compatible with electric or electric-over-hydraulic trailer brakes
  • Overall dimensions: 5" long x 3-1/2" wide x 1-3/8" tall
  • LCD display dimensions: 1-3/16" wide x 9/16" tall
  • Mounting range: 360 degrees vertically
  • Warranty:
    • Limited lifetime on brake controller
    • Limited 1-year on wiring harness


Braking Output

Tekonsha Prodigy P3 brake controller

Braking output is the maximum amount of power that will be applied to your trailer's brakes. How much braking output you need is determined by the weight of your trailer; a heavier trailer will need more power to bring it to a stop. You want to go as high as you can without the trailer brakes locking up.


Use the arrow buttons on the front of the module to set the output.


Power Boost for Heavy-Duty Towing

The boost setting controls the aggressiveness of your trailer's braking, meaning how quickly the brakes reach the maximum braking level. If your vehicle takes too long to come to a stop, increase the setting. If it stops too abruptly, decrease the setting.


Depending on the level of boost, your trailer brakes can start at either 13 percent or 25 percent of the set braking output. So instead of starting at 0, the brakes will start at 25 percent and get to 100 percent sooner. This keeps the trailer from pushing your tow vehicle forward.


Boost Levels:

Approximate Gross Trailer Weight Boost Level Increase in Initial Power Output
Less than tow vehicle GVW B1 13%
Equal to tow vehicle GVW B1 or B2 13% or 25%
Up to 25% more than tow vehicle GVW B2 or B3* 25%
Up to 40% more than tow vehicle GVW B3* 25%

*Both B2 and B3 offer a 25-percent boost in initial power. But the braking curve for B3 is more aggressive than that of B2. This means that, even though you will start out with the same intensity when using these boost levels, you will get an overall more aggressive braking experience with the higher level. So if you use B3, you will reach maximum braking sooner than if you use B2.


Manual Override

To engage the manual override, twist the rotary-style lever from right to left. This will activate the trailer's brakes and brake lights independently of your vehicle, great for stopping sway or controlling your trailer's momentum in an emergency.


Save Your Settings in Multiple Profiles

The P3 is able to store your settings in multiple profiles so that you can have them ready to go for different trailers and drivers. Even the display is super customizable: you can change the screen color, brightness, and language to make it easy to use.


Tekonsha Prodigy P3 review

Troubleshoot with Detailed Diagnostics

The P3 makes it easy to troubleshoot problems as they come up, with comprehensible and detailed diagnostics displayed on the screen.


Display screen when P3 unit turns on. Boost mode one. Boost mode two. Boost mode three.
Display screen is white. Display screen is green. Display screen is orange. Display screen is light blue.
Display screen is purple. Display screen is blue. Display screen is pink. Display screen is cyan.
Screen displays force of braking. Screen displays warning open ground no brakes. Screen displays no trailer connection. Screen displays no trailer connection.

Diagnostic troubleshooting messages include:

  • Battery voltage
  • Voltage supplied by stop light switch when brake pedal is depressed
  • Output voltage to trailer brakes
  • Output current to trailer brakes

Diagnostic warning signs include:

  • Open ground
  • Overload
  • Output short
  • Power loss
  • No trailer connection

Safety Features

The Prodigy P3 offers advanced safety features to prevent damage to various components of your towing setup.


-Integrated reverse battery protection shields the brake controller and your trailer's breakaway system from shorts.


-When the P3 is not in use, it draws only 3.6 milliamps, minimizing drain on your vehicle's battery.


-Any time your vehicle and trailer are at a standstill with the brakes applied for more than 5 seconds, the hold feature will kick on and reduce power to just 25 percent. This will keep your trailer in place without your brakes overheating.


Installing the Tekonsha P3

Installing the P3 is incredibly simple. You'll mount the bracket to your dashboard then mount the unit to the bracket. Plug the custom harness into your vehicle and into the unit. Done!


Keep in mind that the P3 must be horizontally level and parallel with the direction of travel to work correctly.


Correct P3 mounting 360-Degree P3 mounting

With a replacement wiring harness (sold separately) and replacement bracket (TK5906 - sold separately), you can even transfer the Prodigy P3 to another vehicle.


P3 mounted in bracket  P3 mount

Note: If you don't already have a 7-way plug at the back of your vehicle, take a look at our exclusive 7- and 4-way brake controller installation kit (ETBC7 - sold separately).


What is Proportional Braking?

What is proportional Braking

Proportional braking means that your trailer brakes mimic your tow vehicle's brakes. If you slam on the brakes, your trailer brakes will activate with the same intensity; if you brake lightly, your trailer brakes lightly too. The trailer's braking is in proportion to your vehicle and trailer.


The Prodigy P3 uses an internal inertia sensor to detect how your vehicle is braking so it can send the right amount of braking power to your trailer. It measures the inertia of your tow vehicle and activates the trailer's brakes to slow at the same rate. The result is uniform braking across your towing setup. No push-pull action - just smooth, proportional braking every time.



90195 Tekonsha Prodigy P-3 Proportional Trailer Brake Control

Replaces 39526 Hidden Hitch and 20195 Draw-Tite Intella-Stop Xtreme Proportional Brake Control

307200 Tekonsha Brake Control Wiring Adapter with 2 Plugs

Replaces 3072-P

Installation Details TK78UR Installation instructionsAlternate Instructions TK78UR Installation instructions


California residents: click here


Video of Tekonsha Prodigy P3 Trailer Brake Controller w/ Custom Harness - Up to 4 Axles - Proportional

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Choosing Between Tekonsha Brake Controllers

When it comes to choosing a brake controller, a lot of them are gonna look very much the same. And two of them that I really like are from Tekonsha. We have the Prodigy P2 and the Prodigy P3. So, they look very similar, but they do have quite a few differences and we're hoping to break that down, that way you can decide which one's best for you. Here we have our P3 installed and really it comes down to it has more bells and whistles than the P2, otherwise it's pretty much the same controller. The P3 does have a nicer/easier to use display.

It's a little bit more user friendly. It uses some icons here that, you know, show you a trailer and that way you know pretty quickly what boost level you're at and it's really easy to read. It's a nice digital display and you can change a lot of that. Also, it has a little bit more diagnostics. So as far as, instead of just having error code with the P2, this one will actually tell you exactly what it is and there's a host of diagnostics so that way you can look at it.

You won't have to troubleshoot the code by looking at the owner's manual. It'll tell you right away what's happening. The P3 is also really nice if you have a bunch of trailers in your fleet, you can set up presets, up to five of 'em, and that way when you hook up to said trailer, you can select that and it's gonna be preset to the boost settings and also the gain that you may have dialed in. That way you just hook up and you'll be ready to go. Multiple trailer settings are gonna be nice, especially if you have a work truck and you're hooking up to a bunch of different trailers, you can get that dialed in, but if you tow the same trailer over and over, or you know that you're only gonna have one trailer long term or maybe two, that's really not gonna be a function that is necessary.

Now with the P2 installed, you can see right away that the display is obviously not as fancy as the P3, but you again have all the same functionality. There are less buttons, so that kind of keeps it simple. If you just need a brake controller, this is a great option. You still have your power knob, you have your boost button, and you still have essentially the same manual override, which I do like on the Tekonshas, you have a nice modulation here. But really when it boils down to it, they are very, very similar.

The size is gonna be almost identical. They're gonna mount up the same, they're gonna install the same. Again, you have that same proportional here. They both work for one to four axles. They're both proportional. So pretty much the same thing, just more bells and whistles on the P3. If it's something that you're gonna wanna keep for a long time on your vehicle, a P3 is pretty sharp. I do like the display, and something to think about too, you can always take a brake controller from one vehicle to the next, so, but if you're just need to tow a trailer and you need a brake controller, P2 you're not gonna go wrong with. I just like the fact that there is diagnostics that are a little bit more straightforward with the P3. And if you're worried about if it's gonna work with your trailer, they're both gonna work with the same kinds of trailers. You can have electric brakes, you can have hydraulic brakes, it doesn't matter. These are gonna work with either one. So hopefully this video helps break down some of the similarities and differences to help you decide which Tekonsha Prodigy Brake Controller is gonna be best for your needs.

Customer Satisfaction Score:

Ratings & Reviews

4.9

3501 reviews
5 Stars
(3163)
4 Stars
(259)
3 Stars
(42)
2 Stars
(14)
1 Star
(23)
The Tekonsha P3 is a brake controller beloved for its reliability and useability. You're able to save your settings and multiple profiles. It's easy to install, and with the custom harness, it's plug-and-play.

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    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...
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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...
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  • 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.
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  • 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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  • Will Tekonsha Prodigy P3 Installation Require Relay on 2009 Porsche Cayenne
    Hi Damon; as far as we know you will still need the relay to install the Prodigy P3 # 90195 on your 2009 Porsche Cayenne. There isn't a wiring harness that can work around this. However, you will not need to assemble your own wiring harness since you can use the # TK22FR for plug and play. Follow the instructions below from the tech bulletin to add in the relay. Let me know if you need anything else.
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  • 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.
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  • Parts Needed to Install Brake Controller on 2006 Volkswagen Touareg TDI
    Hey David, so the correct components you'll need will only come from a VW dealer and we can only help you find the right part numbers. Looks like 1 connector housing (#1J0-972-782) and 2 wire/terminal assemblies (#000-979-228). Check out the attached help article on this for you to check out as well.
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  • Recommended Tekonsha Brake Controller For A 2017 Volkswagen Touareg
    Hi Vernon, For your 2017 Volkswagen Touareg I recommend the Tekonsha Prodigy P3 Trailer Brake Controller # 90195 along with the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers # TK22FR. The P3 is one of the easiest brake controllers on the market to use and has a bunch of added features, making it an industry favorite. With the plug-in wire harness the installation process will be fast and simple, no cutting or splicing wires.
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  • 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...
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  • Wiring Needed For 2021 Audi Q7 to Use Brake Controller
    Hey Gary, We can get your 2021 Audi Q7 set up with a brake controller, and when you say, "what wiring do I need for this" you seemed to be referring to the Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat # ETBC7. The wiring needed for that is just a 4-way, which will plug into the 7-way that comes with the # ETBC7. The correct 4-way for your Audi is the ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit...
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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Chris R
Video Edited:
Chris R
Employee John S
Video Edited:
John S
Employee Wilson B
Updated by:
Wilson B
Employee Amanda K
Updated by:
Amanda K
Employee Sabrina W
Written by:
Sabrina W

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