How do I test the blue wire on my brake controller?
How do I test the blue wire on my brake controller?
If your brake controller is receiving power, set the power gain to maximum voltage and sever the blue wire about 6 inches back from the brake controller. Using a circuit tester, like part # 40376, test the blue wire for power when you activate the manual override of the brake controller.
How do you hook up a brake controller to a trailer?
Strip the wires on the brake controller harness if needed (#51515). Then, attach butt connectors. Splice the wires from the vehicle to the brake controller harness, matching the colors as follows: With the wires securely crimped together, you can now plug the brake controller harness into your brake controller unit.
Why is there no power on the blue brake output wire?
If there is no power on the blue wire when the manual override is activated, the brake controller is probably bad and would need to be replaced. If you have a proportional brake controller and are testing for power when the brake pedal is pressed, there will be no power on the blue wire.
What should I do if my brake controller is not working?
If you have a time-delay brake controller and there is no power on the blue wire with the brake pedal pressed, check the connection of the red (stop light switch) wire from the brake controller. This wire should be connected to the wire from the brake light switch that only has power when the brake pedal is pressed.
If your brake controller is receiving power, set the power gain to maximum voltage and sever the blue wire about 6 inches back from the brake controller. Using a circuit tester, like part # 40376, test the blue wire for power when you activate the manual override of the brake controller.
If there is no power on the blue wire when the manual override is activated, the brake controller is probably bad and would need to be replaced. If you have a proportional brake controller and are testing for power when the brake pedal is pressed, there will be no power on the blue wire.
Where is the adapter for the brake controller?
The wires for the brake control adapter and the wires coming out of the brake controller match up color for color. The wires match up: red to red, black to black, white to white, blue to blue. Then plug the adapter, which is now connected to the brake controller, into the plug under the dash.
Strip the wires on the brake controller harness if needed (#51515). Then, attach butt connectors. Splice the wires from the vehicle to the brake controller harness, matching the colors as follows: With the wires securely crimped together, you can now plug the brake controller harness into your brake controller unit.
