I have a tailgate bar on the back of my truck. I came out today to find the tailgate strip stuck on brake. The scanning turnsignals also aren't working. I tried disconnecting and reconnecting the power to the bar, same issue. It's hardwired into my 4 pin trailer harness. I replaced my CJB 2 months with a brand new factory part due to turn signal relay going out. Is this a relay or are there other items to check? Anyone have a wiring diagram?