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Prodigy® P2 Proportional Brake Controller for Trailers with 1-4 Axles, Gray

Part No 90885
The Tekonsha Prodigy P2 electric trailer brake controller is a small device with a big responsibility. As one of the most popular and most trusted brake controllers on the market, this proportional brake controller utilizes primary sensor technology to provide a smooth braking response in any stopping situation. The Prodigy P2 has an easy-to-use knob so you can effortlessly set the power output to your desired braking power, a boost feature that lets you apply up to three levels of additional braking power, especially when hauling heavier loads, the choice of electric or electric over hydraulic braking, and manual override to help you brake safely when an unexpected stop pops up. The P2 also has an LED digital display so you can monitor your settings and trailer braking activity and a power-save mode to reduce battery drain when not in use. This intuitive brake controller can easily be positioned on top of or under the dash, with your choice of a mounting bracket or mounting pocket and is self-leveling when mounted within a 90-degree vertical range, so there’s no need to adjust the unit once it’s installed. When you’re done towing, the P2’s snap-in dash mounting clip, Plug & Play port for two plug adapters, and removeable electrical connector allow the unit to be quickly stored. The Prodigy P2 truly is a complete trailer brake controller kit. It works with trailers with 1-4 axles, comes with all the mounting hardware needed for installation, and is backed by a limited lifetime warranty.
  • PROPORTIONAL ELECTRIC BRAKE CONTROLLER: Provides automatic braking based on the intensity and rate at which you apply your tow vehicle’s brakes, thanks to an internal inertia sensor. This makes the Tekonsha P2 brake controller ideal in any braking situation.
  • EASILY INSTALL AND STOW, THANKS TO PLUG & PLAY: The Primus IQ trailer brake controller has a snap-in dash mounting clip, Plug & Play port for two plug adapters, and removeable electrical connector so the unit can be easily unplugged, unclipped, and stored.
  • EASY-TO-READ LED DISPLAY: Color LED display shows settings, real-time diagnostics, and alerts.
  • BOOST FEATURE PROVIDES EXTRA BRAKING POWER: Boost provides up to three levels of additional stopping power at the touch of a button, giving you confidence in stopping safely when you’re hauling heavier loads and/or need more power to stop.
  • VERSATILE: The Prodigy P2 electric brake controller is compatible with a wide range of vehicles including Ford, GM, Chevy, Dodge, RAM, Toyota, Jeep, and more with 2, 4, 6, and 8 brakes (1-4 axles). Vehicle-specific Tekonsha Plug & Play brake controller wiring harness sold separately.
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Ships free & fast to local dealers
Ships free & fast to local dealers

We ship your order directly to your choice of one of our 1,250+ ShopHitches Network Dealers. More Info More Info

Expert installation available nationwide
Part Number: 90885
Warranty: Limited Lifetime Warranty
UPC: 783192026033
Dimensions: 3.1" x 4.4" x 10.5" (Shipping)
Finish: Gray Plastic
Weight: 1.15 lbs

When used together, the following parts make up the product (Kit) at the top of the page. They can be purchased together as part of the kit or as separate components for replacement or repair; however, ALL of the following MUST be used in order for the above product to work as advertised.

Tool Sizes Needed
Replacement Part - Brake Control Bracket

Replacement Part - Brake Control Bracket

Part No 7686

Replacement Part, Mounting Kit Bracket

Replacement Part - Brake Control Wiring

Replacement Part - Brake Control Wiring

Part No 7894

Trailer Brake Controller Harness, Universal Fit

This product is not vehicle specific.

Below is a listing of commonly asked questions and answers for the Prodigy® P2 Proportional Brake Controller for Trailers with 1-4 Axles, Gray. If you can't find the information you need here, please submit your question to us using the form in our contact page.

Select a question to view the answer.

The display shows one dot or the display shows two dots.
The left dot is the power indicator. Meaning that the P2 is powered up and ready. The right dot is the Boost indicator. This tells you that there is a level of boost set.

Display only goes up to 0.0 to 4.2 when applying brakes.
With Proportional Type digital controls the vehicle must be in motion for the control to have output. If the vehicle is sitting still with the vehicle's brake depressed or stopping very slowly the voltage displayed will be very low on the control. The is normal operation.

The P2 display shows PL.
The P2 detected a power loss on the Black wire. Possible causes:
  • Applied brake pedal or manual lever while connecting P2 to power.
  • Poor connection on Black wire, Fuse or Circuit Breaker.
  • Faulty circuit breaker or Fuse.

The display shows og or OG.
The P2 detects an open ground. Possible causes:
  • Poor or no connection to ground on the White wire of the P2

The display is blank.
The P2 will go into a Sleep Mode after approximately 15 minutes of no movement or input. Possible causes:
  • P2 went into sleep mode.
  • No power on black wire of P2.
  • Bad ground on White wire of P2.

No "C" displayed with trailer connected or shows "nc" with trailer connected.
The P2 has to have a complete circuit on the Blue wire to the trailer brakes and then to ground. Possible causes:
  • Open on brake circuit (Blue wire).
  • Power back feed on brake wire (Blue wire).
  • Trailer has electric over hydraulic brakes and control set for electric brakes.
  • Brake circuit has incorrect resistance on electric brakes.
  • Open on ground of brake circuit.

The display shows "SH".
Possible causes:
  • Short to ground on brake wire (Blue wire).

The display shows "OL".
The P2 detects excessive current on the brake wire (Blue wire). Possible causes:
  • Short to ground on brake wire.
  • Trailer has electric over hydraulic brakes and control is set to electric brake mode.
  • No power on battery charge circuit (for electric over hydraulic brakes only).