74 Dart 318 Neutral Safety Switch?

67Dart273 said
If the OP is describing accurately, some of you need to learn to read more carefully. He says he has "no dash lights."

So do you mean dash ILLUMINATION lamps (on with tail or head?) or do you mean WARNING LAMPS?

What DOES (or does not) come on with key in "run" position? How about accessory?

You may or may not have a problem with power supply TO the ignition switch, or you may have a switch problem

All jumpering the relay proves is that the starter operates. It proves nothing about the condition of the NSS, the starter relay, or the wiring

THIS IS A 74?? Could be SEAT BELT INTERLOCK

Find this thing under the hood and permanently splice the two yellow wires together

View attachment 1715202757

View attachment 1715202758

Thanks so much for the reply. You are definitely knowledgeable on this stuff. Here’s what I have. What works: headlights, dome light, dash light, tail lights, brake lights
What doesn’t work: oil light, turn signals, radio, reverse lights,
I found that thing under the hood and spliced the two yellow wires together. No change.