I just assembled my HF 4x8 Trailer and added the lights matching color to color. Easy, or so I thought.
Connected the 4 pin to my Ford explorer with proper tow connector (color wires matching)
All lights work correctly until I hit the brakes.
They don't work, plus if I have the signal on, it goes off too.
Checked all the color matching connection and all are good.
Any Ideas?
I have a DMV appointment in 2 hrs...