Brake fuse

Are you looking for a blown fuse because your taillights / brake lights went out?

Two options here:
1) DMM and check for continuity across all of the blade fuses
2) pull each fuse and look for the one that is blown

(I prefer option 2 because I am lazy)
 
If brake lights dont work, also check for juice in and out of the brake switch, which is on the brake pedal arm.

Good luck.