on my 12 2500 i have the integrated brake controller and i hooked my enclosed trailer up for the first time the other day and my numbers didnt light up so i squeezed the two test tabs together and a trailer with a line threw it popped up on my vic thought it maybe be my trailer so i checked the wiring and unhooked it and hooked it up to me 03 1500 4.7L and everything functions i have also tried my camper and the same thing any ideas?