Circuit Operation

When the Headlamp Switch is moved to "HEAD," battery voltage is applied to the Dimmer Switch. When the Dimmer Switch is placed in "LO," battery voltage is applied, through the closed contacts of the Dimmer Switch, to the LO Beam Lamps. When the Dimmer Switch is placed in "HI," battery voltage is applied to the HI Beam Lamps and HI Beam Indicator. The LO Beam Lamps, HI Beam Lamps and HI Beam Indicator are permanently grounded so that when battery voltage is applied, the lamps operate.