1994 olds custlass supreme brake lights are out fuse is good put new brake light switch in still out park and turn works but no brake light all bulbs good

Its a faulty turn signal switch.Try this,push down and hold brake pedal while pushing on the hazard switch and if the brake lights come on then replace the signal switch.

check voltage from brake switch to signal light switch, if good the the signal switch is probably bad

You probably have a bad brake light switch. This switch is located on the brake pedal arm or a bracket next to the arm. This switch activates the brake lights when the pedal is pushed. You can check this by turning on your turn signals or warning flasher if your light flash in the rear. Your bulbs are good so this will bring you back to the brake light switch.

Try having someone push on brake pedal at the same time thay move the turn signal lever up and down slightly to see if your brake lights work this would tell me that you have a faulty turn signal switch because GM runs the brake lights thru the turn signal switch so they work if you are driving with your 4way flashers on.

Hopefully the repair that made it illuminate was repaired. If it was then use a scanner to erase the code and the light will reset itself.

Its the signal light switch on the lever.
THe signal switch has all connections relating to the brake lights!
solution play around with the lever and see or get someone to see the brake lights work with the brake pedal down.
My car does the same thing! when i move the lever towards activaiting the high beams the brake lights work.
just gently push on the lever to see the lights go on.
you have to replace the switch and requires removing the steering wheel without setting off the airbag.

Change your turn signal switch in the steering column 99% sure that is your problem you can some times check by holding the brake pedal down and wiggling the the switch around and have someone watch to see if the come on

Your brake light circuit runs thru your turnsignal switch if your hazard switch is on your column I have seen numerous inop brake lights caused by faulty turn signal switches.

I have a 1987 Cutlass Supreme and the brake lights wouldn't work. When I moved the tilt steering to a certain position they worked.

i had the same problem had to replace the turn signal switch....GM for some reason wired the brake lights through the turn signal switch. to check if this is the case with yours. put some pressure on the turn signal lever as if you were going to turn on your brights and press your brake pedal and see if the lights work at that point that is how i found mine. hope this helps. if indeed they work with pressure on the turn signal lever. the new switch cost me $60 at autozone and that is with the steering wheel radio controls, make sure you get the proper switch should be part# sw771 if you have the radio controls on steering wheel and you will need a steering wheel puller and lock plate compressing tool.