From a very dull memory, Of the two switches I thought one had it`s internal contacts Normally Closed (NC) and the contacts other switch mounted alongside were Normally Open (NO) although both switches are externally identical...?
Happy to be corrected if that is wrong info..
I just googled it.
Pedal at rest: The plunger is pressed in, so the contacts are open and there is no electrical continuity (open circuit). The brake lights are off.
Pedal depressed: The plunger is released, so the contacts close, creating a closed circuit. The brake lights turn on.
