kalangeberg

Wow! OK, thank you for all of this info. I'm going to go down through the list. I know exactly where the module is and will pull the plug and ohm it out and see what I can come up with. Thanks again for this info, I appreciate it.

Good thought. I have a faitlrly new hitch. I just bought it about a year ago. Also I use the electrical grease on the it. Besides that, the error message comes up regardless whether I'm hooked to a trailer or not. But I think your on the right track. I just can't seem to get power on the blue or brake line to the back. Another person suggested that it has to be in a relay somewhere. However none of the relays specifically refer to the brake controller.

I did not hook up an OBD to it, but I did disconnect the battery and let it sit over night. The status message still came up after reconnecting the battery.

Went through most of the videos there and did do some of them even replaced the controller switch.

Yep, did that. Pulled the fuses and checked for burnt ones. All test out ok.

Need some help on this. I have a 2015 3500 that I've been troubleshooting for the past several weeks. I keep getting the Service: Trailer Brake message on the console. What I've done so far is replaced the dash controller switch, replaced the brake controller, replaced both the plug on the truck wiring harness and the connection on the bumper. I've tested all of the fuses under the hood and both sides of the dash. Even after all of that it appears I'm not getting power on the blue line to the back of the truck. Any help would be greatly appreciated.