Headlight Doors: Operation

The lighting switch receives battery voltage through multi-purpose fuse 1. When the lighting switch is set at the HEAD position, current flows through the passing control relay, pop-up motor (up-switch), pop-up motor relay (coil), and ground, closing the pop-up motor relay contacts. After flowing through the closed pop-up motor relay contacts, current flows through the pop-up motor to ground. The pop-up motor starts operating to raise the retractable headlight. Once the pop-up motor has revolved up to its UP limit, the switch inside the motor switches its contacts from the UP side to the DOWN side. This operation of the switch causes the circuit leading to the pop-up motor relay (coil) to open and the pop-up motor stops, maintaining the retractable headlight in its raised position.

When the lighting switch is set to the OFF or TAIL position, current flows through the lighting switch, pop-up switch, passing control relay, pop-up motor (down-switch), pop-up motor relay, (coil), and ground, closing the pop-up motor relay contacts. After flowing through the closed pop-up motor relay contacts, current flows through the pop-up motor to ground. The pop-up motor begins operating to retract the headlight. Once the pop-up motor has revolved up to its DOWN limit, the switch inside the motor switches its contact from the DOWN side to the UP side, and the motor stops, maintaining the headlight in its retracted position.

When the pop-up switch is set at ON, current flows through multi-purpose fuse 1, lighting switch, pop-up switch, passing control relay, pop-up motor (up-switch), pop-up motor relay (coil), and ground. The retractable headlights rises just as it does when the lighting switch is set at the HEAD position.

When the pop-up switch is set at the OFF position, current flows through the pop-up switch, the passing control relay, the pop-up motor (down-switch), the pop-up motor relay (coil), and ground. The headlight retracts just as it does when the lighting switch is set at the OFF or TAIL position.