High Beam Headlamps Inoperative

Turn headlamp and panel dimmer switch to ON. Move headlamp dimmer switch to ON. Move headlamp dimmer switch to HI position. Backprobe headlamp dimmer switch connector with a test lamp from terminal "C" to ground. If test lamp does not light, replace headlamp dimmer switch. If test lamp lights, service/repair open in Light Green wire between headlamp dimmer switch and headlamp.