Hi this is my first post here so bear with me if it doesn't look right.
I may have to edit later.
I just bought a 92 sedan to fix up. Had annoying BRAKE LAMP light on. Had wrong bulb in it. Swapped bulb. Still on. Removed Brake light sensor.
Opened it up by carefully pulling apart the ears on long sides while lifting circuit board.
Separated the circuit board, this is what is inside.
I looked around and found a broke wire that looked corroded or maybe even burnt.
So I de-soldered the lower portion of the broken wire.
removed it and raised the upper piece carefully.
I then went to Radio Shack, and got some tinned wrapping wire. You can use solid copper wire if you wish. But pre tinned is better I think. I cleaned the end of the upper wire that was broken with some sandpaper so I had a shiny surface. Then soldered an extra long piece of the wire to the lower pin were the old one was. then wrapped the upper piece a couple of times with the wire I just soldered.
I snipped the end off neatly. Use a cuticle trimmer, it cuts very close. Then soldered it with a small amount of solder. Don't overheat and melt the plastic. Try to keep the pieces you are soldering from touching on plastic.
After the new piece is soldered I carefully pushed the raised piece down to clear the top so the cover will not interfere. if it is level with the highest point on your circuit board you should be ok. Check it looking at it's profile.
Then snap the cover back on, reinstall on car, and voila fixed! You may want to check both sides for possible problems in both sensors.
Hope this post helps somebody. It fixed mine.