Left side brake woes

Jesus Chrysler said
Switch breakdown is what I was hoping for. With that I could test the switch function at the connector.

Unfortunately you have to piecemeal it together for '67.
Lemme see. I think I recall seeing an example in the Master Tech series.

This is one, but its not quite the one I was thinking of.
Electrical Wiring (Session 247) from the Master Technician's Service Conference