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Low & High Beam Headlamps Inoperative

  1. Turn headlamp switch to ON. Backprobe headlamp and panel dimmer switch connector with a test lamp from terminal "G" to ground. If test lamp does not light, replace headlamp and panel dimmer switch. If test lamp lights, go to next step.
  2. Disconnect headlamp dimmer switch connector. Connect test lamp from headlamp dimmer switch connector terminal "D" to ground. If test lamp does not light, service/repair open in Yellow wire between headlamp and panel dimmer switch. If test lamp lights, replace headlamp dimmer switch.
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