I have a 2001 miata and the low beams just stopped working. checked the bulbs they look fine and the passenger side just started working after checking any thoughts the passenger side works but the driver side doesn't the driver side is not burned out and the contacts were cleaned and reinserted but it still won't work any thoughts?

 

A filament in the bulb could be loose, causing it to not work. It happened to me once. The bulb "looked" fine, but didn't work. Checks fuses, wiring, grounds, nothing wrong. I replaced the bulb as I was stumped, and it worked!

 

problem solved bought a new bulb on the driver side both lights kept working waiting for the passenger side to go out the bulb still works I put it in a socket on 12/24 volt and its weird it woks if I adjust the voltage easy 12 dollar fix was a new light