I have the integrated brake control. I also tried the connector on the bumper and had the same results. When I picked my truck up after the hitch and connector was installed I had a "check trailer wiring" message displayed on the instrument panel. I think maybe they did not wire the connector correctly. But all the lights work. Just no power to the trailer brakes.
__________________
2008 GMC 2500HD Crew Cab Duramax/Allison
2010 Avalanche 340TG (Fifth Wheel)
|