Trouble Shooting Brake Controller On 1999 Ford F-350
Question:
On my brake controller on 99 F-350. I have 12 volts on the back wire, I confirmed the white ground was grounded to the frame with an ohm meter. The red wire has power when I depress the brake pedal but the green light does not come on on the controller? I cut the blue wire coming out of the controller to try eliminating the chance of a bad wire going to the trailer plug. now if I put my 12 volt test wire to the blue wire coming out of controller, and am grounded to the frame with the test light, then the light comes on on the controller and I get power on the blue wire. if I slide the override on it then the light on controller goes to orange/ red. as soon as the test pin is removed the light on controller goes out. Does it sound like I need to replace the controller or check something else. thanks
asked by: Mark H
Helpful Expert Reply:
If you have a proportainal controller like the Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional # 90195 for an example. You won't get power if you are sitting still, so if you are stationary nothing is wrong.
If you are driving around hitting the brake the issue is going to be somewhere along the blue wire, between the controller and the 7 way plug.
There is a short or disconnect somewhere along the wire. running a new wire or correcting the short/disconnect will fix the issue.
(click to enlarge)
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
Miscellaneous Media
Continue Researching
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: Curt Echo Wireless Brake Controller - 7-Way Plug Mount w/ Bluetooth App - 1 to 2 Axle - Proportional
- Shop: Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Shop: Brake Controller
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Shop: Redarc Tow-Pro Liberty Brake Controller - Dash Knob - 1 to 2 Axles - Proportional
- Search Results: brake controller
- Shop: Trailer Hitch
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Video: Choosing the Right Brake Controller
- Article: Trailer Wiring Diagrams
- Shop: Trailer Wiring
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Search Results: trailer brake controller
- Search Results: etbc7
- Article: Brake Controller Installation: Starting from Scratch
- Video: Redarc Tow-Pro Liberty Brake Controller Review RED24FR
- Q&A: My Vehicle has a 4-Pin Trailer Plug, but Trailer has 7-Pin Trailer Plug
- Video: Choosing the Right Trailer Wiring
- Search Results: 90160
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Shop: Suspension Enhancement
- Q&A: Brake Controller Recommendation for a Truck with Air Brakes and a Trailer with Electric Brakes
- Article: How to Choose the Right Trailer Hitch Class
- Video: Tekonsha Prodigy P3 Trailer Brake Controller Review
- Shop: Redarc Tow-Pro Elite Brake Controller - Dash Knob - 2 Braking Modes - 1 to 3 Axles - Proportional
- Search Results: 90195
- Q&A: What is Difference Between Redarc Tow Pro Liberty and Elite
- Shop: Gooseneck Hitch
- Search Results: redarc
on Trailer Brake Controller
