I'm trying to figure out my wiring on our new boat's trailer (boatmate). I have everything down except for the blue wires. I traced 2 to the clear LED/reverse lights & 1 to the trailer brakes. But when I hook up the trailer brakes the actuator doesn't engage. Did I miss something somewhere?
Going from a 5-way to a 7-way so I skipped the positive plug on the 7-way. The rest were all used (ground, left blinker, right blinker, stop/markers, reverse, and electric brakes).