1997 Oldsmobile Aurora

check your bulbs if you see something that looks black on the bulb it's probably burned out. it could also be your turn signal switch gone bad as the brake lights go through that switch. best way to check is check the white iwire coming from the brake light switch and if you get power there it's good. then check the light \green wire and if there is power there, then the turn signal switch is not the problem.