Brake Light Question

[mgambuzza]

My first issue is no brake lights. I went under the car and saw this switch pictured. It appears to be a normally closed switch, and when pressure is exerted it comes open. So when installed, I can see that the plunger spring is compressed, presuming that is causing an open circuit, and when the brake is applied, the plunger is released, and closes the circuit allowing voltage to flow to the brake lights.


My question is when should I see 6V on the switch? Does the ignition have to be on for power to go to the brake lights? I'm not seeing with ignition on or off, so I may have to investigate further. Is there a common wiring point I need to research? I know I'm going to have to purchase a Model A manual, but I was looking at hints to try to be able to get a starting point so at least I can take this for a ride safely - and not get rear ended on a Maiden Voyage.

Thanks in advance for replies.