Sorry, this is not C-Body related but does anyone have a wiring diagram for a power tilt car trailer? Mine does not have a trailer break battery, it uses a marine battery to power the trailer brakes, the Hydraulic lift and it has the power coming from the seven pin to charge the battery while hooked up. I don't have any problems with the lights etc. The problem is with the power, I'm afraid I have a short somewhere but I'm hoping I have done something stupid.
After looking for weeks, I found it shortly after posting this thread, hope this helps someone else. My application doesn't need the controller in the diagram because my truck has a factory installed controller.