Activating 12 Volt Accessory Circuit of 7-Way on a 2015 Ford F-350

Question:

2015 Ford F-350: Im not getting current to my auxiliary lights on my trailer with the 7-way. It is my understanding that 2015-16 Super Dutys dont have a relay to install to get power to the tow charge terminal. The truck will only supply current if it senses a load and the brake is applied. Does anyone know of a way to get constant power in a terminal without hacking my wiring harness to get power to that terminal?

asked by: Scott

Expert Reply:

I can help you power the 12 volt accessory circuit of your 7-way, but the circuit you described that has voltage when the brakes are applied is not the one to use.

You would need to run a 10 gauge wire like part # 10-1-1 to the positive post of your battery through a circuit breaker like part # 9510 from the 1:00 pin on the connector as you are facing the opening of the connector. I attached a picture that shows the pin diagram for the 7-way for you to check out as well.

expert reply by: Jameson C