head light problem 68 dart.

Check grounding, and condition of headlight connectors

Dash lamps are a bit of a trick. The dash dimmer control on the light switch "gets power" from the tail light circuit, so it has to be working first

The dimmer of course has to be turned towards the left (brighter). Power goes OUT of the dimmer on a tan / light brown wire down to the INST fuse in the panel. This is the only fuse that is supplied in this manner.

So with the tail or headlights on, the dimmer to the left, check for power on both sides of the INST fuse. This is the small fuse on one end of the panel.

Leaving the fuse all panel dimmer controlled lamps are fed with ORANGE wiring.