Tekonsha P3 Shows 0.0 On Display When Brake Pedal Is Pressed - Is Something Wrong?
Updated 04/25/2024 | Published 04/24/2024
Question:
My Tekomsha P3 brake controller is only showing 0.0 when the trailer is connected. Even when I hit the brakes. It does change and shows a value when I move the manual lever underneath. What could be wrong?
asked by: Chris W
Expert Reply:
Hello Chris. What you are describing sounds completely normal and it sounds like your Tekonsha P# controller # 90195 is installed correctly. With the trailer connected the display should show 0.0 when the brakes are applied, and it should show the current gain setting when the manual override is applied.
The P3 has an internal inertia sensor. It senses deceleration and generates an output that is based on deceleration. When the vehicle is not in motion, the controller will not sense deceleration and no power will actually be sent to the brakes when the brake pedal is applied.
Try connecting your trailer and taking it for a spin. When applying the brakes with the vehicle in motion, the controller will sense deceleration and the display should show the output. I have linked the instructions for this controller below. You can see this info on pages 2-5.
Product Page this Question was Asked From
Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Splice-In
- Under-Dash Box
- Under-Dash
- Up to 4 Axles
- LCD Display
- Multiple Trailers
- Tekonsha
more information >
Featured Help Information
Instructions
Continue Researching
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Brake Controller Installation: Starting from Scratch
- Q&A: What is the Difference Between the Tekonsha Prodigy P2 and the P3 Brake Controllers
- Article: Trailer Wiring Diagrams
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Article: Installing an Electric Brake Controller on 2007-2013 GM Full-Size Truck or 2007-Present GM SUV
- Article: Aftermarket Brake Control Wiring for 07-13 GM Full-Size Truck with Factory-Integrated Brake Control
- Q&A: Brake Controller Wiring for Ford E-450 Motorhome
- Q&A: Brake Controller Recommendation for a Truck with Air Brakes and a Trailer with Electric Brakes
- Q&A: Is There Downside to Going with 7500 Air Lift Kit Over 5000
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Q&A: Alternative 7-Way Connector for the Kia R0F67 AC600 on a 2025 Kia Carnival
Chris
4/25/2024
Thanks Jesse. The problem is, it still shows 0 when I brake with the trailer in motion & connected. Only when I applied the manual lever does it change. Am I not going fast enough? I didn't go above 15mph. Regards.