7 prong trailer plug-in 12v aux not working

[44deere]

Thanks, I'll try that tomarrow. Why would it be that the one on my wifes Yukon is ironiclly not working either?? Also I bought my truck with out the electric brake setup but went to Ford and bought the factory setup with wiring harness too. Mounted it like it was from factory. Don't know if that even matters? I have also noticed that my electric brake power is not as strong on even level ten as is a couple of friends trucks that are also used on the same trailers. Maybe this all is from the same problem????????? That is why I posted it on this form b/c I have been extremely impressed with all the knowledge and help there is!

Thanks for responding, Russell

[cangim]

Russel, is the brake controller the same brand? That might be why the strength is different.