I'm having problem with my 1990 accord highbeams. They won't stay on no matter what I do. First off yes I am flicking the switch in the right direction. I've replaced the relay and the combo switch with known working ones and it's made no difference. Any ideas would be greatly appreciated as driving at night is a pain in the a$$ having to hold them on.

 

I had a similar problem with my old toyota camry, but when I changed the main switch, everything came back to normal.
I hope someone can help you!