I have a 2001 Ford Mustang Gt, the brake lights are out, including the third brake light. I looked at the fuses (fuse 4133), they are fine and not broke, I then heard it could be the brake light switch do I replaced that as well. I had my girlfriend hit the brakes while in park and they worked! Then she hit the brakes again and they didn't work :(.. I checked then bought a continuity tester and and the light on the tester lit up on fuse 41 and that fuse 33 did not light up. I replaced fuse 33 with another 15 a fuse and it still does not light up when i test it so it seems that there is no power. Does anyone have any ideas as to why only that one fuse (33) does not work and how I can fix it so I can get my brake lights working again? Thanks
Check the wiring connections to the brake switch and be sure that switch is installed securely
Replace the brake light switch under the dash.
The fuse is not an issue unless ALL of your exterior lights and even your dash lights are bye-bye. They share the same fuse, I believe. Tail lights and interior dash lights come on when you turn the parking lights on, so that makes sense.
