1969 Dart Swinger Warning Hazard Toggle Switch Bad??

Easiest test is to jumper the 2 hazard relay wires together and turn the switch on. If the 4 ways stay on then you have good wiring and a good hazard switch, and a bad hazard relay avail at any auto parts store for about $5.

Its easy to make a jumper test wire out of a short piece of wire and 2 male spades, or use alligator clip test leads and jump both relay wires together to test