Headlight Doors

Voltage to open the Headlight Doors and to power the solid state circuitry is applied to the Headlight Door controller at all times at terminals B and E of connector C1. With the Light Switch in OFF and PARK, voltage to close the Headlight Doors is applied to terminal C of connector C1. With the Light Switch in HEAD, voltage is applied to terminal A of connector C1 to allow the Headlight Doors to open.
When the Light Switch is moved to HEAD, voltage is applied to the Headlight Door Motors. Ground is provided for the motors through the solid state circuitry until the Headlight Doors are open.
When the Light Switch is moved to OFF or PARK, voltage is reversed across the Headlight Door Motors. The motors run in the opposite direction to close the Headlight Doors. When the doors are closed, the solid state circuitry senses the motors are not operating, and ground is removed.