HELP Headlight switch testing 1971 Dodge Dart

I almost ALWAYS test stuff under load if possible. That is what WILL show up bad connections/ terminals/ connectors and switches. Using an ohmeter will lead you down the wrong road. I already gave you a pretty good list of what you are up against, but I don't know, in your car, what all there is for the dash lighting. And it could be an abraided wire, touching something it shouldn't.