7 pin traditional versus SAE
My son and I added a brake controller to his 2011 F150 and backed it up to my TT to test it. My trailer plug does not fit his 7 pin socket. I did some quick research and found that I have the traditio...
Forum Discussion
Sounds like it's time to put a regular 7-pin RV plug on that trailer. The 7-pin SAE plug is typically on commercial plugs.
Note that the SAE version doesn't have all the same pins, besides the pins being round. Brake and turn circuits are separate (not a big deal... just reuse the brake light circuit as the trailer brake circuit, run the turn signals as combination stop/tail lights swapping to red lenses if it already doesn't have them), there's no backup-light circuit, and there's 2 running light circuits one for tail-lights one for clearance lights.
Note that the SAE version doesn't have all the same pins, besides the pins being round. Brake and turn circuits are separate (not a big deal... just reuse the brake light circuit as the trailer brake circuit, run the turn signals as combination stop/tail lights swapping to red lenses if it already doesn't have them), there's no backup-light circuit, and there's 2 running light circuits one for tail-lights one for clearance lights.
