Hey all. I have been fighting with my trailer brake system for the last year or so. I have REPLACED the following: Brake pressure sensor on the MC, trailer brake relay under the bed, brake light switch at the pedal. I dont get the message until i step on the brake pedal and release, and lately it has only been under heavy pressure, if i just tap on the brakes with a trailer hooked up they work fine. I get this message whether i have a trailer hooked up or not. Another VERY WEIRD symptom, my cruise control will NOT work unless i trigger the "service trailer brake system" message and then cruise works just fine. I have traced wires and everything looks good. I do have the bundle under the front of the bed, but even with the plug(and that bundle, disconnected i still get the message. I have a brand new Prodigy P2 that i can install, but id really rather use the ITBC. Anybody have any ideas? Im at a complete loss at this point.