Troubleshooting Tekonsha Prodigy P3 Brake Controller Display Not Going Into Sleep Mode

Updated 02/04/2025 | Published 08/24/2018

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Dielectric Grease for Electrical Connectors, 2 oz.

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Question:

When the brake controller goes into sleep mode when the vehicle is turned off is the P3 display supposed to stay on all the time? I thought it used to go out? But now mine stays on all the time.

asked by: Rich K

Helpful Expert Reply:

The Prodigy P3 brake controller # 90195 is designed to go into sleep mode when not in use. This will just keep your settings and will be a very minimal draw like the clock in your vehicle. The display should "sleep" after 15 minutes of detecting no movement. If after that 15 minutes you are still getting the display, then the controller is seeing a slight power draw from a trailer connected or is seeing a draw from a trailer connector that most likely just needs to be cleaned. I recommend using some sand paper to clean corrosion, a remove dirt and debris. Then use dielectric grease like # 11755 to keep moisture and debris from the pins causing the false reading.

expert reply by: Jason S

Kevin

2/4/2025

With no trailer hooked up my p 3 brake controller will not go into sleep mode do I have a bad controller

Jameson C.

2/4/2025

@Kevin Does it show any type of connection info on the display? I wonder if there is some corrosion on the pins of your 7-way that would cause it to think you have a trailer connected and keep it active.

Kevin

2/4/2025

@JamesonC i have power on my power wire and power red wire when I pressing the brake pedal and good ground it seems to be all good with a trailer hooked up i dont know if the controller will go in to sleep mode with the trailer hooked up have not tried that yet but with no trailer it flashes no trailer and won't good into sleep mode

Jameson C.

2/4/2025

@Kevin I don't believe it will go into sleep mode with a trailer connected. If you haven't tried already I would disconnect the trailer and check.