Brakes lights and cruise control are not working?

I only have a cab third brake light that works. The others do not work, including the camper shell third brake light. I have turn signals. I have checked fuses all are fine and not busted. I have also checked the bulbs as well, and they are fine. Also, my cruise control does not work either. Everything had worked before just fine. What would you guys suggest? Where would the issue begin?