I had the whole interior taken out when having the car painted. Prior to, headlights and everything worked fine. I've since put the dash back in and got the car running and everything works fine except for the headlights and turn signals. Both the combo switch and dimmer switch are rebuilt and seem to be working fine. I do have a couple of individual wires with no home in the steering column that I can't identify on the wiring harness and have no power or continuity to ground (seen in the pic below).
1. Tested 12V at both HL fuses (upgraded MSA blade fuse panel) when switched on
2. Tested dimmer switch and see ground being applied to different wires when high beams are switched on/off
3. I have 12V to the headlight plug black wire (shouldn't this be ground?) I also have ground continuity check fine at the headlight plug on the red/black wire
4. When I plug the physical headlight into the plug, the 12V black wire becomes <1V and stays as such until I cycle the combo switch
5. Front turn signals do light up and have power, but do not flash and the hazard switch does not work...not sure if they are related and I haven't tested the blinker.
Both headlights are H4 housings which use all the stock wiring, upgraded by previous owner, if that makes any difference.
Is there a grounding issue somewhere? Car starts and runs fine, all other lights, including brake lights, are fine.
Wires with no home
1. Red wire out of the harness with aftermarket female connector
2. black wire out of the harness with aftermarket male connector
3. black/yellow wire out of harness with female connector
4. blue/white wire out of steering column with male connector