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!!! BRAKES WORK NOW!
All along, the problem was the HBA-CAM module that is required for some truck models with factory ITBC to work with EHB trailer brakes.
Others had suggested that and I did replace the 4 wire Carlisle model with the Titan 2 wire model. I noticed when shopping for a new module that the Carlisle model had gone to 2 wires.
At any rate, yesterday after replacing the module everything worked except when pushing the brake pedal. I did not know that the trailer brakes would not activate when pushing the brake pedal without the truck moving. If stationary, the brakes activate the if the gain is turned up all the way or with a stronger force on the brake pedal. Again, I think this is a design to avoid burning out the pump (or electric brake magnets for those without disc) while in traffic.
So for those with disc brakes that have to use an adapter, it may be worth getting a back-up module in the event it goes out on the road like mine did.
Thanks to those who offered help in this situation. Phil
All along, the problem was the HBA-CAM module that is required for some truck models with factory ITBC to work with EHB trailer brakes.
Others had suggested that and I did replace the 4 wire Carlisle model with the Titan 2 wire model. I noticed when shopping for a new module that the Carlisle model had gone to 2 wires.
At any rate, yesterday after replacing the module everything worked except when pushing the brake pedal. I did not know that the trailer brakes would not activate when pushing the brake pedal without the truck moving. If stationary, the brakes activate the if the gain is turned up all the way or with a stronger force on the brake pedal. Again, I think this is a design to avoid burning out the pump (or electric brake magnets for those without disc) while in traffic.
So for those with disc brakes that have to use an adapter, it may be worth getting a back-up module in the event it goes out on the road like mine did.
Thanks to those who offered help in this situation. Phil
