If both do not work look to the fuses.
Couple of things. Check the ground for the loom at the rear. If that is clean and tight I would suspect that the problem is in the brake light switch.
3.2 Mega pixel, No flash.
There's a solenoid on the steering collom. When you put on the brakes. It sends power to that solenoid. Than it should come out of park. Check fuse for brake lites. Check brake lites swicth on brake pattle.
check the switch which is located above the brake pedal. needs adjusting or a new one!
If both are inoperative check the fuse, and the brake light switch.
center brake lites came out on 1994 4runners
3. 2 for the main lites, and 1 in the center
Look in the owners manual. There is a fuse. In the fuse box low on the dash to the left of steering coluum.
Make sure the bulbs are inserted correctly, if o/k look for wiring issues. A common cause is a recent trailer harness installation or repair.
Make sure your brake lites work.If they dont replace brake lite switch
check the brake light switch by the pedal. it might be kind of underneith the dash it might just need to adjusted
I had the same problem, on top of the brake peddle there is a switch that you have to replace, it is pretty clear with a flashlight, It knows when the peddle goes down, in my car it was white.