u0137 code Body Control Module lost communication with trailer brake controller . found some broken and corroded wires. ( I kept calling the relay module sorry )
I have a 2013 gmc Sierra 3500 same problem ! I’ve done the same thing including new parts and it’s not fixed yet ,, But you gave me hope that I have over looked this exact problem ! Fingers crossed weather cooperate I’m checking that next !! That you
if I heard you correctly you've had to fix this twice now !?!?! this is actually a super common defect. if you have some spare time you should file a complaint www.nhtsa.gov/report-a-safety-problem having non-functional trailer brakes is a safety-critical defect and GM should be responsible for the damages and repairs for all of our trucks
The folks that installed my goose neck hitch pinched the harness is the main reason for repairing it twice, but I will look into the nhtsa deal as well. thanks !!
I have a 2013 gmc Sierra 3500 same problem ! I’ve done the same thing including new parts and it’s not fixed yet ,, But you gave me hope that I have over looked this exact problem ! Fingers crossed weather cooperate I’m checking that next !! That you
I never did care for electronics. lol
it can be a challenge for sure
if I heard you correctly you've had to fix this twice now !?!?! this is actually a super common defect. if you have some spare time you should file a complaint www.nhtsa.gov/report-a-safety-problem having non-functional trailer brakes is a safety-critical defect and GM should be responsible for the damages and repairs for all of our trucks
The folks that installed my goose neck hitch pinched the harness is the main reason for repairing it twice, but I will look into the nhtsa deal as well. thanks !!