One High Or Low Beam Inoperative

Turn ignition off. Disconnect headlight connector for problem light. Turn headlights on. Place headlights in either low or high beam, according to problem. For high beams, measure voltage at Red/White wire of headlight connector. For low beams, measure voltage at Red/Black wire of headlight connector. If voltage is more than 10 volts, replace headlight in question. If voltage is less than 10 volts, repair Red/White or Red/Black wire.