Some of the problems with the switch are in getting the plunger centered so the light is out, (if its not stuck), it is easiest with 2 people, one person presses hard on the brake pedal and watches the light (the ignition key will have to be on so your indicator light can work), the other barely opens a brake bleeder valve on either a front or rear brake, its 50/50 whether you guess right to start, while you are letting brake fluid out, the person in the car needs to tell you when the light goes out, immediately close the bleeder valve, if it didn't go out, then do a bleeder on the the opposite end of the car. IF you bleed the fluid too fast the plunger can go past the centering point causing a blink in the light, and it will be at the other end of travel. If you do both front and back and it will not go out, then it is stuck, inside. Post your results. Good Luck.