I just replaced a hub this morning to get rid of my 3 amigos. It worked but I still have uno amigo. My Hill descent light is on and my scanner is reading one code. "Brake Light Relay short to internal supply" the best info I can find on that is to inspect and or replace my hill descent relay. I can;t seem to locate that? Where is this really? Am I on the right track?

2000 Discovery 2