Originally Posted by rookiecamper
my buddy hooked his truck up to the camper & the brakes work great. all other light work as well. With my F-250 hooked up to it the brakes will work manually but when I use the pedal nothing happens. I think the truck needs to be in motion for the brake controller to work properly???? the dealer checked the entrie system and it was working. by testing with a test light i have power at the plug but the test light is dim. thanx
my 350 worked like that
the puter uses time, speed and braking effort to compute a force(electric amp)to the brakes.
however....if you press the pedal do you get any load lights at your indash controller? if not there is an issue
most likey culprit is bad ground from the trailer to the truck, hitch ball is not one. i would double check the electric connections on both the truck and trailer
and.....if you can actuate them manually using the thumb bar, then its working
also for grins.....unplug the fuse for the controller and and the a/c.
wait a minute and then reinsert.
hope it helps