Brake lights stay on 1991 Lexus LS 400

Could be a bad brake light switch or the solenoid itself or wiring. See if brake lights work. If they don't then check brake light fuse, if thats ok then check at the brake switch for power or jump the two wire plug lights should light and shifter work unless solenoid bad. Good luck

Have you probed the tail/brake lamp socket to see if power is there or you just assume it is? also make sure the ground is good for the brake lights Do that if not done already and let me know.

behind the break light housing inside the trunk

This is a really simple task. Just follow the instructions on this page:

http://www.lexls.com/tutorials/brake/fbrotor.html

no silly when one bulb blows the othere one wont work til its replaced take cover off see which ones blow change it n they will both work again

YOU HAVE OPEN OR SHORT WIRE IN BRAKE LIGHT SWITCH FROM THE FUSE TO BRAKE LIGHT SWITCH.

MAKE SURE YOUR BATTERY HAS 12.5 VOLTS.POSSIBLE CAUSE TO YOUR PROBLEM IS FAULTY BRAKE LIGHT SWITCH.FAULTY TRANSMISSION NEUTRAL SWITCH OR FUSE.YOU COULD HAVE FAULTY BRAKE TRANSMISSION SHIFT INTERLOCK SOLENOID.

If you are referring to the rear brake lights and not the red brake warning light, then i suspect either a faulty brake switch(usually located above the brake pedal) or one that is not adjusted properly.

Check the brake light switch under the dash near the top of the brake pedal, the button might be stuck in, or the switch is bad.

Can some one tell me why dash lights flicke and dnt stay on i have a 93 ls 400