Without Daytime Running Lamps

CIRCUIT OPERATION

HEADLIGHTS
Voltage is applied to the Headlight Switch at all times from Fusible Link Z. When the Headlight Switch is in "HEAD," voltage is applied to the HI and LO Beam Circuits through the Headlight Dimmer Switch.

At the same time, this voltage is applied to the Headlamp Door Motor Assemblies, which allows the doors to open.

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

FOG LIGHTS
With the Headlight Switch in "HEAD" or "PARK," voltage is applied to one side of the Fog Light Switch. When the Fog Light Switch is closed, voltage is applied to one side of the Fog Lights Relay Coil, energizing the relay (the other side of the coil is grounded through the HI Beam Filament of the Headlamps).

When energized, the normally open contacts of the Fog Lights Relay close, allowing voltage to be applied to the Fog Lights.

When the HI Beams are activated, ground is removed to one side of the Fog Lights Relay Coil, de energizing the relay and turning off the Fog Lights.