Everything worked up until I tested my brake-away. My controller kept flashing N/C (no connection) so I pulled over to see if the RV plug was in. It was all hooked up but I noticed that the pin that plugs into the little black box wasn't pushed in all the way. So I unplugged everything, and plugged it all back in and still have no power to the trailer brakes. I have lights but no brakes. Did I blow a fuse?