I had the same issue, even thought I got the tow kit, go to the dealer (they are the only ones that have them) and ask for the Relay kit. it cost me 140 dollars and they will provide you three relays. Once you have them open your hood and look at th…
jUST BOUGHT MY TITAN AND INSTALLED MY ELECTRIC BRAKE. IT DIDNT WORK AT FIRST AND I ASSUMED I POPPED A FUSE. THERE ARE FUSES FOR THE CONTROLLER IN THE DASH & UNDER THE HOOD. ALL MINE WERE GOOD. sINCE MY TRUCK IS USED, I CLEANED THE 7 PIN CONNECTOR W/…
Check the brake unit you bought, it should be plug and go. If you know where the plug is it is a do it your self project even for mech challenged people like my self.