We have just taken delivery of a new Dutchmen travel trailer. I got my prodigy p3 brake control installed last night and was checking out the truck side of the the trailer wiring to find that the right side brake post didn't have 12vDC when brake is depressed. Also the "running lights didn't have 12vDC when parking lights turned on. I do have 12vDC to to the top right post and the left side brake lights seem to fine. Is there a fuse running the right side of the plug? Just a quick note, the trucks brake lights work properly and the two posts I haven't checked yet are the back up lights post and trailer brakes post. Thank for your help as always.
