What does C mean on a Prodigy brake controller?
William Harris
Published Feb 09, 2026
What does C mean on a Prodigy brake controller?
The “. c” you are seeing on the display of your P2 part # 90885 indicates that your controller is sensing a trailer connection. As long as you have a trailer connected when you see this it sounds like everything is fine.
What is PL on Prodigy brake controller?
The error code P.L. on the Prodigy # 90885 trailer brake controller indicates that 12V input power has been interrupted while the brake pedal is pressed. This power is carried on the controller’s black wire.
What are the 4 wires on a brake controller?
The Colors of the Remaining Four Wires:
- The first wire (black) runs to the vehicle’s battery to supply power to the trailer connector.
- The second wire (blue) runs to the brake controller to supply power to the trailer brakes.
- The third wire (white) gets grounded to the vehicle’s frame.
How do you test a prodigy brake controller?
Make sure you have power entering the brake controller on the black wire. On the red wire you will only want power when the brake pedal is pressed. If there is power on the red wire before the brake pedal is pressed you have connected the red wire from the brake controller to the wrong circuit.
How do you unplug a prodigy brake controller?
To remove the Tekonsha Prodigy P2 # 90885 you simply need to detach the harness at the rear of the brake controller. Once that is removed you can tuck the harness up under your dash with some zip ties andthe uninstall the bracket that holds the brake controller as well.
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.
What does 5h mean on a Prodigy brake controller?
How do you reset a prodigy brake controller?
The first step that we will want to take is to reset the brake controller. This is done by simply unplugging the brake controller for approximately 20 seconds and then reconnecting the brake controller.
How do I know if my brake controller is working?
Press down on the brake pedal while watching the brake controller. The display on the controller should light up and hold a relatively steady reading, which should not vary by more than 1/10 of a volt up and down.
What is a brake controller and how do they work?
A brake controller is an essential part of an electric trailer braking system. Electric brake controllers detect when the tow vehicles brake pedal is depressed and how much braking pressure is being applied. The brake controller uses that information to control the brakes on the trailer. How Brake Controllers Work
What is the best brake controller?
The best brake controller is the Tekonsha 90195 P3, which is a proportional braking system with configurations for other trailers and a range of features. There are two different types of brake controller, which are time delayed and proportional braking.
Do I need a brake controller?
You only need a brake controller if you have electric brakes on your trailer. Most boat trailers use surge brakes, but there are some out there with electric brakes. If your trailer has surge brakes it will have hitch on it that looks something like one of these
What is a brake controller?
A brake controller is usually an OEM or aftermarket installed device or module. It is mounted to the tow vehicle’s driver’s-side dashboard area, and engages a trailer’s electrical braking system either time delayed, or in proportion to the tow vehicle’s brake engagement when slowing down or coming to a halt.