GM Duramax - NO Trailer Brakes
I have a 2013 HD with the factory integrated trailer brake controller. Today when I plugged in the fiver, NO brakes. The DIC shows nothing but the the gain set point. I can adjust the gain up and d...
Forum Discussion
UPDATE: I plugged the truck into another RV and everything functions properly. I'm going to order a new HBA Cam module and see if that fixes it as others have suggested. I can't imagine what else it could be since the brakes activate when pulling the break-a-way plunger as well as all the lights including back-up work. I'll update once I receive the new part and install. Thanks.
