MAke sure there is voltage to the bulb using a meter. If no voltage them make sure there is voltage to the ballast. If it's there then you need to replace the ballast. If no voltage to it either, then go back to the fuse box and check there. It's just a matter of back tracking.So I went out and bought a new high-beam for passenger side, changed the bulbs only to find out that the new bulb will not come on either. Any tips?