Troubleshooting Output Shorted, No Brakes On a Tekonsha Prodigy P3 Trailer Brake Controller
Question:
My P3 says output shortage no brakes, without a trailer being connected
asked by: Russell M
Expert Reply:
With the Tekonsha Prodigy P3 Trailer Brake Controller # 90195 showing Output Shorted, No Brakes it is telling you there is a short in the wiring from the brake output wire to a ground or other wire. Since you do not have a trailer connected you will need to check the wiring on your vehicle. I recommend starting by disconnecting the wiring at your 7-way. I have seen instances where the current can ark inside the 7-way and cause an issue like you are seeing. You should be able to disconnect the factory wiring in different parts of the harness to determine where the short may be.
You may also try disconnecting the blue output wire from the back of the Prodigy P3. This will help you to determine if the issue is inside the controller itself and not the vehicle wiring.
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
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- LCD Display
- Up to 360 Degrees
- Tekonsha
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: Tekonsha P3 Brake Controller 90195 Displays Message Output Shorted No Brakes
- Article: Testing Trailer Brake Magnets for Proper Function
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Brake Controller Installation: Starting from Scratch
- Article: Trailer Wiring Diagrams
- 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: How to Install a Brake Controller on Chevrolet / GMC 1999-2006 Pickups
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Q&A: Does the Tekonsha P3 Trailer Brake Controller Turn Off or Stay On All the Time
- Q&A: Parts Needed To Install A Brake Controller On A 2023 Freightliner Cascadia
- Q&A: Suspension Enhancement Recommendation for 2019 Toyota RAV4
- Q&A: How Does Brake Controller Install on Freightliner S2RV Chassis
- Q&A: Parts Needed to Add 7-Way & Brake Controller on 2023 Kia Sportage