Welcome to the crazy

farm .
There are two brake switches on the master cylinder...have a white plastic dohickee holding the 2 red/white ? wires..some have three wires per switch...they unscrew and VW bug ones fit.
If you short the wires together on the one switch the brake lights should light up.......if not......fuse or bad ground is usual problem....the switches get to the point where you have to push hard on the pedal to get them to operate....'corse, I could be wrong
.