Originally Posted by Fez
The new controller registers 10 volts if worked manually (controls on dashboard) and only 5 to 6 volts when using the truck brake. The dealer thought they had received another defective controller. They tested 3 new trucks on the lot with the same results. Ford states this is appropriate. I won’t have the opportunity to tow the trailer again for about 6 weeks to test the effectiveness of the new controller. Does it seem reasonable to you, the experts, that the controller would only output 5 to 6 volts when using the vehicle brake? Thoughts/comments?
2013 EB SCREW MaxTow
One of the nice features of the built-in Ford brake controller is that it adjusts its output to the speed you are traveling. So when the truck is at rest, only a few volts is there. But at higher speeds, in theory, you will get the full voltage.
It works well for me. My old Prodigy controller had to be set high for highway speeds, then lowered when pulling in for gas, or else the trailer would jerk whenever I touched the brakes.
But I too have the setting all the way up to 10 on the new controller. It brings the truck to a rapid halt on pavement but doesn't lock up the brakes. The brakes do lockup on gravel. I'll be checking the brake adjust ment soon and maybe after that I'll get it to lock up on pavement.