Why is my trailer brake controller flashing?
The Digital Display will “flash” a symbol to indicate a problem with the trailer, the tow vehicle, or the brake controller. Short Circuit: The display will flash “SC”. This indicates that the controller has sensed a direct short between the controller’s output and ground.
How do I know if my trailer brake controller is working?
For that you can use a circuit tester like the part # PTW2993 with one pin grounded and the other on the output pin. Then you can hit the brake pedal of the vehicle and you should see the brake controller operate like normal.
How do you check trailer brakes without controller?
Testing Electric Brakes on Trailer without Connecting to Tow Vehicle Absolutely! If you would rather not connect the trailer to your tow vehicle, you can simply use a separate car/truck 12V battery to test the electric brakes on your trailer. You can apply power to the appropriate brake input pin on the trailer…
How to troubleshoot the trailer brake controller without it?
After 12-volts of power have been confirmed at the controller, hold the test light to the wire connection port on the trailer connector at the rear of the vehicle. If there is less power at the trailer connector than at the controller, check for issues with the wiring between the two components. How to Check a Brake Controller Without
How can I tell if my trailer brakes are working?
Therefore, with any electric brake problem except a noise in the brakes start by checking the controller. Watch for the controller to light up to verify that the controller has power and turns on when the brake pedal is pressed.
Where is the test light on the trailer brake controller?
Hold a 12-volt test light to the trailer connector wire port at the back of the trailer brake controller. After 12-volts of power have been confirmed at the controller, hold the test light to the wire connection port on the trailer connector at the rear of the vehicle.
What happens when no power is found at brake controller?
If no power is found at the connector, the problem is in the wiring between the connector and the brake controller. Check junctions in the wire back to the controller; these tend to become corroded and fail to carry current. If power is found at the controller it’s time to move on to the trailer.