Use a circuit tester, and check the red wire that exits the rear of the controller. This wire should only go hot when the brake pedal is pressed. If this checks out ok, then the controller is bad and must be replaced.

How do you test a trailer brake controller?

Testing the brake controller is fairly easy. Sever the blue brake output wire near the brake controller leaving enough room to reconnect it and then apply the manual slide. Using a circuit tester like the Quickee Tester, part # 3808, you should get output to the controller side of the wire you severed.

How do I reset my brake controller?

To reset the Pilot brake controller part # 80550 all you have to do is unplug the connector behind it for a few minutes. Doing that will return it back to the factory presets.

How do you troubleshoot a tekonsha brake controller?

Troubleshooting the Prodigy Brake Controller

1. Check that the front of the controller is level side to side and back to front.
2. Connect the trailer electrical connection plug to the tow vehicle and start the tow vehicle.
3. Check the display reading.
4. Check the display reading.
5. Check the display reading.

How do you tell if your trailer brakes are working?

The easiest way to tell if the brakes are working on the trailer would be engage the manual override and have a friend sit outside the vehicle and watch the wheels on the trailer. If they begin to drag when you let off the brake pedal (slowly) on the tow vehicle then you know they are working.

Why is my brake controller not working?

Brake controller loses connection to battery ground. Ground wire was not connected to negative battery terminal, ground area does not have solid connection to ground. Ground connection to negative battery terminal is loose. Ground wire has been damaged and exposed wiring is touching a metal area.

Why does my trailer jump when I brake?

This happens when the brakes are set too high and cause the trailer to jerk when they are applied. When the trailer jerks, the brake controller senses it and thinks the vehicle is decelerating even more, so the controller applies the trailer brakes more strongly.

How do you reprogram a brake controller?

How to Adjust Trailer Brake Controller: 6 Steps

1. Step 1: Plug in the trailer wiring harness.
2. Step 2: Allow the brake controller to calibrate.
3. Step 3: Select personal settings.
4. Step 4: Set the maximum output.
5. Step 5: Adjust the sensitivity level.
6. Step 6: Manually activate brakes as needed.

Does a 7 pin trailer plug control brakes?

What is difference between a 4 pin and 7 pin trailer connector? A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer brakes (requires a brake controller in the vehicle), and a reverse light or auxiliary power circuit. There are other types of connectors as well.

What would cause electric trailer brakes not to work?

First, check the vehicle and trailer connectors for corrosion. If there is a bad ground connection the trailer brakes will not work. Next, check the brake controller wiring. Sever the blue brake output wire, leaving enough room to splice it back together when testing is done and then apply the manual slide.

What does 5h mean on trailer brakes?

The code 5. H (flashes 2x per second or a steady display) on the Prodigy P2 # 90885 indicates the brake wire is seeing a short during idling conditions.