turn,hazard, and brake lights on 1995 Chevrolet Suburban 2500

pressed hazards on then off and now i have no tail brake signal. also turn signal only works when hazards are in on position, but no hazard lights. could it be the box that the signal switch is connected to under steering column cover?

Try firmly turning on and off the hazard switch a few time and see if you can get the brake lights and turn signal working again. Chances are that the turn signal switch is at fault.