1998 mazda protoge no brake lights

Check brake light fuse first. If ok, the brake light switch at the brake pedal may be defective. Try wiggling the switch to see if the brake lights work. If not, disconnect the wiring connecter and if it is just 2 wires cross them over and see if the brake lights come on. If they do, the brake light switch is bad. If wiggling the switch makes the brake lights work, I would suggest a brake light switch as well

check fuses for brake lights if fuse is good check for power to brake light switch with test light.

Probably the blinker switch ..The brake light circuit runs through the blinker switch..Let somebody look and while you have the brakes applied move the switch around and see if the lights come on

Does the brake light in the rear window work? If so, the brake light switch is good. Running lights all work?

This is a common GM specific problem. Your turn signal switch contains an elaborate networking device that has to cancel brakelights while running a turn light. Often times the ground within the turn signal switch is lost causing your situation. After investigating such other possibilities as fuses and loose grounds it may become necessary to replace the turn signal switch. Thank you, Dana

I have a 2001 Ford F150, my brake lights dont work. Ive replaced the bulbs, checked the fuses,and the brake switch on side of the brake pedal was replaced. I still dont have any brake lights. My third brake light works fine, along with my running lights,flashers, blinkers.

this would be a multifunction switch which turn signal switch wipers ect. run through located on steering column under plastic cover.assuming the brake light switch is good see if third brake light works when you press the pedal if so it is deffintly the multi switch.

stupid question but have you checked that all the globes arnt blown.
also have you adjusted the stop light switch properly.

a good test to to is check your globes replace them if you are not shore of them then un plug the stop light switch and earth out the two pins in the plug then check if the light come on.
if they do you may still have a faulty new switch our it might need adjusting

check the actual globe is not blown