76 Dart no lights

NorthernMainer said
Hey folks, so I've been fixing a few electrical gremlins in my 76 Dart. I'm down to my last two. No power to the radio which isn't so much a big deal, but I also have no power to all of my lights. I tested the connection at the firewall, and there is no power coming out.

I printed out a wiring diagram for the car, and studying that, I'm thinking it is either the ignition switch, headlight switch, or the "printed circuit connector". I have blinkers, and 4 ways, but that's it.

None of my gauges work either as far as I know.

A few questions.

1. If the ignition switch is bad, will that cause the lights not to work? I don't even have brake lights, or dash lights.

2. Where is this "printed circuit connector"? and is there anywhere you can buy them new?

3. Could just the headlight switch stop all the lights on the car from working?

I would start at the dimmer switch and see if I had power to it.
If power there but not out of it you know it's the dimmer switch.
If it does have power to it with your headlight switch on, then the problem is from there out (like the bulkhead connector) and not the headlight switch.
No power to the dimmer means headlight switch or the supply to it.

Dimmer has nothing to do wit the tail lights, brake or front markers (but the light switch does) control tail and markers.
Light switch has nothing to do with brakelights.
Connector on the floor drivers side is tail and brake and turn lights.

Questions:
1. No
2. On the back of the cluster (maybe used or replace the entire connection point like 67Dart273 (Del) did.
3. The switch could only interfere with parking tail, and markers. (not brake lights)