I have a 2015 Chevy Silverado 2500. The trailer brakes are not working. Fuse is good under the hood, but there’s no power at the plug when break is applied. There is no trailer service message on the screen. It will not function either with the brake pedal or the slide switch in the dash. Somewhere between the fuse power and the plug there’s a problem where do I need to look first?

 

Check the relay for the trailer.

 

I don’t see a relay for the trailer brake. I see a 30amp fuse for the brakes.