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  1. Trailer Brake Controller
  2. Tekonsha
  3. Proportional Controller
  4. Under-Dash Box
  5. Digital Display
  6. Dash Mount
Tekonsha Prodigy P2 Proportional Brake Controller with 2 Electric Brake Assemblies - 12"

Tekonsha Prodigy P2 Proportional Brake Controller with 2 Electric Brake Assemblies - 12"

Part Number: 90885-54801-7-8
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Trailer Brake Controller
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Tekonsha Prodigy P2 Proportional Brake Controller with 2 Electric Brake Assemblies - 12" Dash Mount 90885-54801-7-8
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Proportional brake controller automatically levels when mounted within a 360-degree vertical range. Includes boost feature, battery protection, continuous diagnostics and override lever. Electric brake assemblies are self-adjusting. Great Prices for the best trailer brake controller from Tekonsha. Tekonsha Prodigy P2 Proportional Brake Controller with 2 Electric Brake Assemblies - 12" part number 90885-54801-7-8 can be ordered online at or call 1-800-940-8924 for expert service.
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Tekonsha Trailer Brake Controller - 90885-54801-7-8

  • Proportional Controller
  • Tekonsha
  • Under-Dash Box
  • Digital Display
  • Dash Mount
  • Automatic Leveling

Proportional brake controller automatically levels when mounted within a 360-degree vertical range. Includes boost feature, battery protection, continuous diagnostics and override lever. Electric brake assemblies are self-adjusting.


  • Brake controller activates included electric trailer brakes in proportion to your vehicle's braking action
    • Activates immediately - no pausing like with time-delayed brake controllers
    • Works when vehicle is in reverse gear so that you can back into tricky parking spots
  • Automatic-leveling controller
    • Self-adjusts to varying terrain
    • Eases installation and allows for more mounting options
  • Boost feature adds more initial braking power for heavier trailers
  • Continuous diagnostic check makes you aware of any potential problems before you hit the road
    • Ensures proper connection between trailer and tow vehicle
    • Monitors brake magnet condition
  • Integrated safeguards for vehicle battery and brake-control functions
    • Reverse battery protection defends your brake controller and trailer breakaway systems from shorts
    • Power-saving mode reduces drain on the battery when not in use - draws only 3.6 milliamps
  • Blue, digital LED display shows voltage delivery to trailer brakes
  • Built-in, rotary manual override lever
  • Portable brake controller unplugs from hardwired pigtail wiring harness
  • Electric brake assemblies have self-adjusting levers to keep shoes properly aligned
    • Makes for longer-lasting brakes
    • Requires less maintenance
  • Prodigy P2 can be used with trailers that have up to 4 axles (8 brake assemblies total)
  • Plug-in, vehicle-specific brake-control adapter (sold separately) can be used for certain applications to reduce installation time


  • Brake controller dimensions: 3-1/8" wide x 5-1/8" long x 2" tall
  • Boost power increase: 0 percent, 14 percent and 28 percent
  • Mounting: 360-degree vertical range
  • Wiring harness length: approximately 34"
  • Warranty:
    • Prodigy P2 brake controller: limited lifetime
    • Electric brakes: limited 1 year

Brake Specs:

  • Quantity: 2 brakes
    • Left-hand and right-hand assemblies
  • Dimensions: 12" diameter x 2" wide
  • Wheel sizes: 14-1/2", 15", 16" and 16-1/2"
  • Mounting flange bolt pattern: 5 bolt
  • Axle rating: up to 7,000 lbs

Proportional Braking

The Prodigy P2 electric brake controller supplies power to your tow vehicle's brakes proportionally. This means that your trailer will brake at the same time and with the same strength as your vehicle - even when in reverse gear. So, if you have to slam on your truck's brakes, the trailer's brakes will respond instantly with no delay. Thus your vehicle's brakes won't be overworked from trying to stop the entire load, resulting in less wear and tear. The P2 also cuts power to the trailer's brakes when your vehicle is stopped - extending the life of the magnets and brake shoes in the brake assemblies.

Power Boost for Heavy-Duty Towing

Aside from smoother, more efficient braking, the Prodigy P2 also offers a boost feature that gives you more initial braking power for those times when you're towing heavier loads. The boost setting sends either 13 or 25 percent more power (depending on which setting you choose) back to the trailer brakes, thus compensating for heavier loads. You can also boost the power manually with the push of a button. This will send more power to the trailer brakes exactly when you need it most, and your fully loaded rig will brake smoothly and comfortably.

Automatic Leveling and Simple Installation

The self-leveling feature of the Prodigy P2 ensures that the brake controller continues to function even as you drive up steep hills or through the mountains. Simply mount it in your cab at any vertical angle, and it will level itself automatically thanks to the 360-degree rotational range.

Installation is a snap. After mounting the P2 unit using the included pocket mount, hardwire one end of the included pigtail harness directly into your vehicle. The other end plugs into the brake controller. To transfer the P2 to another vehicle or to remove it for storage, just unplug the unit and slide it out of the pocket mount.

For even easier installation, a vehicle-specific wiring adapter (sold separately) is available for certain vehicles. One end of the custom adapter plugs into your vehicle, and the other end plugs into your controller - no hardwiring required. An instructional DVD that is included with the brake controller's written instructions allows you to take full advantage of all the features.

Note: For vehicles without brake-control wiring adapters, one of the following is required:

20-Amp circuit breaker (9506P - sold separately) for 2- to 4-brake applications

30-Amp circuit breaker (38630 - sold separately) for 6- to 8-brake applications

See also's exclusive 7- and 4-way brake-control installation kit (ETBC7 - sold separately) that includes all the parts necessary to install the Prodigy P2 brake controller.

How the Prodigy P2 Is Better Than the Original Prodigy

  • More mounting options - 360-degree vertical rotation
  • Additional safeguards - reverse battery protection for vehicle and trailer breakaway systems
  • Greater versatility - works with electric-over-hydraulic trailer brake systems
  • Easy-to-read, blue LED digital display

Prodigy P2 blue LED display

90885 Tekonsha Prodigy P-2 Proportional Brake Controller

54801-007 and 54801-008 Tekonsha 12" Electric Brake Assemblies

Installation Details 90885-54801-7-8 Installation instructions

Customer Reviews

Tekonsha Prodigy P2 Proportional Brake Controller with 2 Electric Brake Assemblies - 12" - 90885-54801-7-8

Average Customer Rating:  4.9 out of 5 stars   (2651 Customer Reviews)

Proportional brake controller automatically levels when mounted within a 360-degree vertical range. Includes boost feature, battery protection, continuous diagnostics and override lever. Electric brake assemblies are self-adjusting.


I purchased the brake controller and wiring harness from you all and installed it watching the video on your website. I followed the instructions to an absolute T. Got everything ready and tested the product and got an SH error code for the blue brake wire shorting out. I pinned and measured resistance and everything was coming back fine (4+ ohms resistance). I then hooked a power prope to it to find the short along the frame and nothing. I had power from the female connector all the way up to the brake controller. After 4 hours of troubleshooting, I found that the female trailer connector was shorted internally. See the attached picture. The blue and green ring terminals inside of the female trailer connector were touching. Replaced the trailer connector and now all is well.


I had a Prodigy P2 controller in my last pickup and was really pleased with it. So wanted to install the same thing in my newer truck Everything worked smoothly on installation. Made the necessary adjustments to controls after hooking to the trailer and it works great!


This is the second one I purchased. The first was 10 years ago and installed in my 06 GMC. It has worked flawlessly allowing for safe and smooth stops from normal braking to a few of the panic stops that had to made over the years. The new owner of the truck likes the way it works too. I have multiple trailers and with one initial setup on the lightest trailer was able to tow all of them without changing anything but the boost setting to compensate for the different trailer weights.
When needing for a controller for my 07 Silverado there was no other unit that would fill the bill. This P2 looks the same except for the blue display instead of the red. The install took 20 minutes using the direct fit cable ordered with the controller. Setup was easy as with the first unit. I wanted the placement above the parking brake pedal so the OBD II connecter had to be moved. I did the same with the 06 GMC. It is a comfortable place to reach and it keeps the light away from the passenger's eyes at night.
As good as the Tekonsha controller is it is even a sweeter deal buying it from etrailer. The quick shipping, excellent pricing and knowledgeable staff are second to none in customer service.


Installed this in my 2015 Jeep Wrangler Unlimited Sport. I thought that I would add some input on installation that would help others.
I found a way to route the power distribution wires in the frame of the Jeep that did not require the use of a fish tape. If you look at the frame just behind the rear tire you will see a hole in the face of the frame. Start pushing the wire bundle foreword. It will rise up and over the U shaped frame portion of the rear axle and then down along the passenger compartment area. About there, you will be running out of pushing stiffness. Look for the wire bundle to appear at a similar hole in the frame in that area. Grab it a and pull out approximately 4 feet and then push it right back in the same hole going foreword. This time you will look for the wire bundle to appear at again a similar hole just foreword of the driver compartment. Now is the time to grab it and start heading up to the engine compartment outside the frame. Do the same procedure for the wire going aft for the plug end of the installation. For the wires going through the firewall, Jeep has conveniently added a nice foam lined hole to route wires through. You will see this hole position in the attached photo with a green wire coming through. The plastic cover around the steering column pulls down from the top and hinges at the bottom. Remove the metal plate with two bolts to get to the brake switch. Twist and pull the brake switch out foreword and go for the brown stripped wire as your brake circuit. Do order the LONG frame bracket adapter for the switch plug at the rear. To drill the steel for the supplied plug bracket just takes too long. Now that you have it installed you will notice that the power will remain on the unit after you turn the key off. Don't sweat this as it will not stay on long. I doubt a few milliamps draw is going to kill your battery!


The online video showing the installation of the Prodigy P2 trailer brake control into a 2011 Ford Ranger was excellent! It made the installation into my Ranger simple and straight forth.
I have yet to hook up to my travel Trailer and adjust it for brake setting, but all readout displays thus far are as stated in the instructions.
Having previously installed the trailer connector, I did not purchase the installation kit and in retrospect for cost effective and simplicity would recommend anyone to purchase the kit along with the controller.
I believe I am going to be very pleased with this product.
Thank you


I have a Tekonsha controller on my 2001 Chevy Silverado and it worked like a charm for over 18 years.I'm sure that the new Prodigy P2 will do the same.


very nice controller, very smooth and you don't have to mount it flat!! e trailer is the best company i ever worked with. they have pics, video, email support(exellent) and just flat out make it easy for you to do it yourself instead of paying some dirt bag $300 to install at your local trailer shop. i also installed kit #ETBC7 and once agian it was awesome. COMPLETE with DETAILED directions. i'm not a mechanic or hack employee at local trailer shop....BUT dealing with etrailer and there parts made my install very easy and CLEAN!!!


Works very well for a year now. No hassle installation and zero issues. Easy to adjust for hauling different trailers. I am happy with the purchase.


the controller has great reviews, I got it because my factory controller wasn't working well with the new camper that has electric/hydraulic brakes and I was experiencing a 5 second lag for the trailer brakes to come on. this controller works better with a 2 to 3 second lag, need to try a couple different combos on settings, have the boost at 3 (per recommendations) and gain at 2.5 and under hard braking it locks up the trailer tires. going to try boost on 2 and bump up the gain and see if that works better.


I didn’t have a good location that was reachable while driving so I mounted the controller on top of the dash. I leveled the bracket with a spacer and ran the harness by an access panel. I used about 70’ of the duplex wire due to running the cable to front and then back to the house batteries inside the coach.
The access panel made it easy to make the connections and run the wires through the firewall.
I mounted the 40 AMP and 30 AMP circuit breakers up front in the main fuse panel box. I drilled a hole through the box and firewall to run the wires from the brake controller to the breaker and to the blue wire for the tow connection at the back of the coach.
I ran the battery connections to my house batteries up front instead of using the engine batteries in the back.
I found the brake connection wire under the coach in front directly below the brake pedal.
I mounted the converter in a beam in the back with lots of zip ties


Used in conjunction with harness kit for my 2002 tundra, this year has no provisions for towing trailer with electric brakes.
The controler itself has proven itself nicely, with no issues with installation or use, adjust easily.
The mounting location I chose may have some slight interference issues with legs on taller people, but I have not had any @ 5'11". The truck is a midsized so room is more limited. I'm towing a tandem 14' trialer with 4 seat RZR, tracking and stopping is perfect, even under hard breaking.


Great product, very easy install especially with the OEM harness. In about an hour had it installed and trailer set up with controller. Thanks,


Great product! Since I pull my goose neck with electric brakes, with my semi truck tractor, it acts as a interface between the air brakes and the electric trailer brakes, and acts as a Johnson bar if I need to get the trailer back under control.


I recently bought a 2018 Chevy Silverado LTZ. It was equipped with a towing package but no brake controller. Not wanting to alter the interior of the truck too much, I called etrailer for advice. Robert S was very helpful. He suggested the Tekonsha Prodigy P2 brake controller and jumper wire that I was able to hide neatly under the dash using an existing screw. I have been very pleased with etrailer and their suggested product.


Controller is intuitive and easy to use. Love not cooking my truck brakes when towing now.


Great Brake Controller, used it with the Universal Install Kit for Brake Controllers and No-Drill Mount Bracket, Short - 18140. It only took me 2.5hrs to have it fully installed in my Jeep Wrangler Unlimited 2013. Videos were great. Also having some 1/4in water tubing helped for phishing wire thru frame.
Wish I had watched the video a couple of times before buying and also purchased the extra wire to go from the battery to the brake controller, but had extra wire from another project that worked.
This brake controller works great as we tow a <3500lbs Travel Trailer with our Jeep.
Comes with a great card that helps with settings, keep it in the glove box for future reference.


Great Brake Controller This was my first time using a brake controller and installing one as well. The directions were easy to follow for both the install and setup.

2012 Ram


Very easy to setup and operate. Just pulled a new trailer from Utah to WA and it worked like a champ.


Been one year of ownership now and this controller has performed very well. I would by again for sure.


The Tekonsha Prodigy P2 Brake Controller arrived on time and is just what I needed. The installation and operating instructions are easy to understand and should make installation a breeze. I'll give an update after I get it installed.


I installed this model 90885 Prodigy P2 Brake Controller using the ETBC7 Brake Controller Wiring Kit on my 2007 Dodge Nitro. On a scale of 1 to 10, I consider myself about an 8 where it comes to automotive mechanical and electrical work. I also strive to get as close to perfection as possible. To do the job right, it did take some time and it did require paying close attention to the directions for both the wiring kit and the controller. However, the directions were "right on", and all the needed "goodies" to do the job were furnished. My hat is off to ETRAILER for the informative videos they provide and their customer service, which includes very quick shipments of their products.


I purchased this controller for my 2005 Jeep TJ. We're towing a 2014 Forest River FLagstaff MAC and, after doing much research, we decided that this unit (along with the universal installation kit ETBC7) was the right one for us!

Both the controller and install kit contain everything that you'll need for a clean, professional-looking install! The install took around 2 hours (in my driveway) and the controller works flawlessly!

This setup is perfect for a Jeep TJ, the controller fits nicely to the lower left of the steering wheel (out of the way) and the trailer connection is a bolt-on setup that attached to my Reese towing hitch!

The trailer connection (with the install kit) has both a 4-pin connection and a 7-pin connection so there is no need for adapters! It is truly a "plug and play" setup!!

As far as ordering and customer service goes, this was one of the smoothest transactions I've had in quite some time! There are numerous photos and install videos that will guide you through the install.

We'll definitely start with for our next purchase like this!


I installed the brake controller a week or two ago in my 2013 GMC Sierra 1500. I had one just like it in an older Duramax that the previous owner installed--I went with the same product. I had the chance to use it this afternoon to pull a few tons of #57 stone. Trailer plus load I figure about 6000 pounds behind the truck. Pictures are attached.
This is the first 1/2 ton truck I've owned in nearly 10 years and worries how it would do with heavier loads. This controller made a world of difference and really maximized the use of my truck. Great product and I highly recommend it to anyone needing a good controller.


Easy installation on my Ford E-450 Bus! Now I can pull my travel trailer! Thanks!


Just installed it. My Camper is a restored 1966 Frolic with electric brakes that I am getting checked out tomorrow.
Unit installed fine on my Chevrolet Colorado and the actual installation video with the Colorado was perfect!
Thanks - I will recommend it to a friend who needs to do the same on his Silverado.

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Info for this part was:

Employee Lindsey S
Written by:
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Employee Leah B
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