To remove the switch turn it around the top of brake pedal arm under the dash and pull the clip on the electrical connector. After that, take out the pushrod retaining clip and nylon washer away from the brake pedal pin and unlock the pushrod enough to get the outer hole of the switch over the pin, then lift up the switch. With regard to positioning, the switch should be placed in a manner that it is sandwich like over the pushrod with the slot located at the inner side of the switch placed on the pedal pin. Push the pushrod and shift back on the pin; then fit the nylon washer and retaining clip in its fitting. Last but not the least, adjust the wires harness and test the brake light to ensure that it is working properly.