Stop Lights 1940 Ford

[mike42]

Morning….

I’ve replaced the stop light switch a couple times in order to get the stop lights to function. They went out again and it doesn’t appear to be the switch this time. I pulled off the two wires on master cylinder and joined them together with a little pigtail and the lights still don’t go on. I also noticed that when I turn on the headlights the tail lights don’t go on anymore but the headlights do. Does dash light switch control stop and taillights ?

Thx Mike