I have a 1975 260Z 2+2, it's actually an on-going restoration project for me. One night i was taking my Z out for a drive, was going about 90mph then hit a small pothole on the road, suddenly my headlights went out! i pulled over to check, the high-beam is working but normal headlights are still out.... Can anyone help me remedy this? Is it the wiring harness that has loosen up because of the strong vibration?

 

Check the earthing from your combo switch. sometimes loose nuts or connections on the steering column can play havic with earthing of the combination swith or it just might be time to clean out or replace the combination switch.

Post more info if still playing up.

 

Thanks bigjoe, I'll give it a try and keep you posted