Is Blue Wire on Prodigy P2 Brake Controller Supposed to Have Power with Brake Pedal Pressed
Updated 12/22/2025 | Published 10/12/2024
Question:
Can’t get fire from controller to trailer. Is there a tech I can talk with.Have a prodigy 2 controller. Is the blue wire from controller suppose to be hot when I press the brake?
asked by: Ed F
Expert Reply:
Hey Ed, thanks for reaching out!
Yes, the Prodigy P2 # 90885 should be showing power output on the blue wire when your brake pedal is pressed, but you might not be seeing much power because your vehicle is sitting still and there is a sensor inside the controller that only sends whatever power is needed - so if you're sitting still it can tell that and won't send much power.
If you use your manual override that will send the power regardless of whether or not you're sitting still.
Product Page this Question was Asked From
Tekonsha Prodigy P2 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
- LED Display
- Single Trailer Only
- 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
- Article: Trailer Wiring Diagrams
- Q&A: What is the Difference Between the Tekonsha Prodigy P2 and the P3 Brake Controllers
- Q&A: Brake Controller Recommendation for a Truck with Air Brakes and a Trailer with Electric Brakes
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Q&A: Does the Curt Base Plate Kit Work w/ the Ford Modular Bumper on a 2025 Ford Bronco Everglade?
- Q&A: Towing a Trailer with Electric Brakes with a Semi Tractor with Air Brakes
- Q&A: Brake Controller Wiring for Ford E-450 Motorhome
- Article: Installing an Electric Brake Controller on 2007-2013 GM Full-Size Truck or 2007-Present GM SUV
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: How to Measure for Trailer Hitch Drop
Jesse M.
12/22/2025
Hey Ed, how did things go once you tried using the manual override on your Prodigy P2 controller? Did you see power on the blue wire when you tested it? Your update could make it easier for the next person troubleshooting the same issue.