Troubleshooting Older Valley Journey # 52650 Brake Controller


Turn signals activate the trailer brakes. I have gone completely through the wiring, changed the 5 to 4 wire electronic converter, changed the 7-pin connector. When testing with trouble light I get bright light on one turn signal wire and dim on the other and vise versa. Also get light on brake pin on 7 pin connector. It is either the brake controller or the Land Cruiser.


Expert Reply:

Other than a power and ground connection, the only connection the brake controller has to the vehicle is through its connection to the brake stoplight switch using the red wire exiting the rear of the controller. If this red wire is tapped into the wrong circuit of the switch, the turn signals can operate the brake controller. Use a circuit tester like part # 40376 to test the wires exiting the brake stoplight switch located at the top the brake pedal. You want to use the wire that ONLY shows current when the brake pedal is pressed (not when the headlights are switched on or the turn signals are operated).

You'll also want to check your 7-way connector at the rear of the vehicle and on the trailer. Excessive corrosion build up can cause signals from an adjacent pin on the connector to 'bleed over' onto another circuit. If you can see green or white corrosion on the pins or in the sockets of the connector, there's a good chance the corrosion has spread to the interior of the connector and is interfering with the connection.

I'll link you to our FAQ article about troubleshooting brake controllers, as well as to a video showing how to test a brake controller.

expert reply by:
Mike L

Products Referenced in This Question

Product Page this Question was Asked From

Follow up Questions

Similar Expert Q&A Pages

See More Q&A Expert Answers >>