'65 Dart No brake lights. Brake light switch failure?

HOW HAZARD switches work. I realize that not all cars had them, and that they were optional for a few years, and could be added aftermarket.

A hazard switch, whether OEM dash mount, aftermarket add on, or even 70/ later "in the TS switch" all work sorta the same

You basically have a 4 terminal "hazard" switch, when off, none of the 4 are connected, and when activated, all 4 are connected.
1 terminal receives power from the separate hazard flasher, powered "hot" at all times
2..terminal goes to the brake light switch wire feeding to the TS switch. This is to feed hazard "flash" to both rear lamps and the TS switch has to be centered
3...terminal goes to left front signal lamp
4...termianl goes to right front signal lamp.

So with hazard switch activated, foot OFF the brake, and TS switch centered, all 4 lamps flash