If the fuse is okay, try checking for power at both leads on the brake light switch. The pink/dark blue wire should be constantly hot, and the white/tan wire should be hot when you press on the brake pedal. If that's okay, it's probably a problem in the turn signal switch. If you have power on the pink/dark blue, but it's not coming through, it's either the switch (or maybe the switch out of adjustment).
Be sure and check the fuse with a meter...sometimes they can "look" okay and be burnt out.