On a 1999 ford f 250 where is brake lite fuse located in fuse bo x

If none of your brake lights including the 3rd or high mount light are not working.You will need to check fuse no.13(20amp) in the under dash fuse panel,then check for power to the brake light switch on the top of the brake pedal.You should have power on the light green/red wire then when you press pedal you should have power on the light green wire also. If the 3rd light works but not the other brake lights then your problem will be the multi-funtion switch(turn signal switch) or the wiring from there to the brake lamp sockets or the bulbs themself. If you need further assistance please let me know. If this helped you then please feel free to rate the solution accordingly. Thanks, Midwest-tek