Lamp Out Indicator: Description and Operation

1983 LINCOLN CONTINENTAL
The lamp-out warning system monitors rear lamps and headlamps by measuring change in voltage across a section of wiring harness with a transistor-bridge diode. Warning indicators are located on either side of the tripminder. The lamp-out warning system operates when ignition is in ACC or RUN position. The rear outage light will illuminate when headlamp switch is energized and one or more tail lamps are burned out, or when one or more brake lamps are burned out and brake or turn signal is applied. The rear lamp indicator will also light if turn signal or emergency flasher is applied with one or more brake lamps out. When the headlamp switch is energized in low beam mode and one or more low beam lamps are burned out, headlamp outage light will illuminate. When the ignition key is in START position, both warning lights should illuminate.