Troubleshooting Voyager Brake Controller Where Green Light Does Not Come On

Question:

Green light on voyager unit not coming on. Key on, black wire has 12 volts, white wire has proper ground checked with ohmmeter to ground, red wire has 12 volts when brake pedal is depressed. Trailer connected, all lights work, see no corrosion in connector. Could a poor connection of the blue wire where it connects to the wheel brake actuators cause this. Havent checked voltage on blue wire when brake pedal depressed yet. Besides the blue wire output voltage is there anything else to check?

asked by: Bob W

Expert Reply:

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 # PTW2993, you should get output to the controller side of the wire you severed. If the manual slide activates the trailer brake output wire properly, try the brake pedal. If the brake pedal activates the brake output properly also then the problem is farther back either in the vehicle wiring or on the trailer.

If either the brake pedal or the manual slide are not functioning properly you will need to test the wires going into the 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. You would then need to find the brake switch wire that has power ONLY when the brake pedal is activated.

If these connections check out and the brake controller is properly grounded then there is possibly a problem inside the brake controller.

expert reply by: Jameson C