1968 Dodge charger headlight issues

No. No relay

Power for the SWITCH comes FROM two sources

Tail / park/ instrument lamps goes to the switch from the tail circuit fuse


Power ONLY for the headlights comes from the black ammeter wire, the "welded splice" which is up in the harness a few inches from the ammeter. THIS IS NOT FUSED. This feeds directly to the switch, but the switch has a BREAKER built into the switch

The main causes of this breaker tripping are.........

Bad connections at the headlight switch and connector, causing heat

Great Big aftermarket headlights installed, extra driving lamps, etc, causing too much current flow

A bad breaker in the switch.......Remember, "new" does not mean "functional." The switch could be defective.