Turn Signal Issues 63 Valiant

Marker lights??? I thought you said this is a ---63---?

The parking lights (should not BE any marker lights) on the older cars should be off with headlights on, unless someone has modified them.

But they are a separate filament/ circuit. And with the bulkhead connector unhooked, and still having power at the green? wire? This should eliminate any troubles there.

Mopar did this very simply on the newer cars. The headlight switch has an output for the tail lamps and a separate one for the parking lamps, which goes COLD on headlights.

They simply connected the parking lamps to the tail lamp switch terminal, so the parking lamps stay on with the headlights.

So lets recap:

With the bulkhead disconnected, and with the signal switch disconnected, and with the cluster disconnected, all three at the same time, you DO HAVE power on the green signal wire?

If this is true then you MUST have a crossover in the under-- dash harness.

Probably time to pull the cluster, start at the ammeter or the bulkhead connector, and examine the harness for heat damage, and if you see none, start untaping it a little at a time.