July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

BRAKELIGHT/Stoplight Switch

Disconnect switch connector. When brake pedal is pressed, continuity should be present between terminals No. 2 and No. 3. SeeFigure -Figure . When brake pedal is released, continuity should be present between terminals No. 1 and 4. Replace switch if it does not test correctly.