Does anyone know how the low beam head lights are wired in a 1978 chevy nova? Mine just quit! I`ve replaced the switch and no change. I`ve ohm the wires from the light to the firewall and they checked good. They seem to run to the high beam switch. I`ve also ohm the head light to the switch plug and there seems to be no direct connection to the head ligh plug?? is this normal? any help would be great. Thanks