Follow the brake pedal upwards and where it pivots , is located a small micro switch .
It sends a signal to the brake lights.

I would check your bulbs FIRST,though

__________________
1999 Ford Ranger XL
Vulcan V6, K&N 33-2106 Filter, 3:73 Gears,
FRONT 3'' Susp Lift/REAR 3'' susp.+ 3" blocks,06 Mirrors
31"/10.5"-15" BFG on AR-172 Polished Rims,Smitybilt Console
95 Mustang Saleen Seats,Alternating Blinker MOD
Pioneer CD/iPod/GPS,6.5 Polk Audio/6.5 Sub-Woofers,
Stainless Bed Extender,Throttle and Dome Light MOD,
12" Tool Box,Billet Grille,NightShade Tint,Projector Headlamps
6000K H.I.D. so i can see at night! LOL

JESUS is LORD!