You will need a key to replace the brake light switch sensor on your vehicle «at 19».
1. Disconnect the wire from the terminal «minus» battery.
2. Disconnect the connector with wires from the sensor terminals of the brake light switch.
3. Loosen the locknut of the brake light switch sensor...
4.... and unscrew the brake light switch from its bracket.
5. Reinstall the brake light switch sensor on the vehicle in reverse order. Adjust the position of the brake light switch so that the brake lights come on even if the brake pedal travel is low.