Headlamp: Description and Operation

Low Beam Operation
With the ignition switch in ON, battery voltage is applied to the coil of the head lamp relay (Low) from fuse 16.
With the light switch in HEAD, ground is provided to the coil of the head lamp relay (Low) through the light
switch. Battery voltage from fusible link F is then provided to the low beam head lamps through the closed contacts of the head lamp relay (Low) and Low head lamp fuse. The low beam head lamps light.

High Beam Operation
With the ignition switch in ON, battery voltage is applied to the coil of head lamp relays (High/Low) through fuse 16. With the light switch in HEAD, ground is provided to the coil of the head lamp relays(High/Low) through the light switch. Battery voltage from the fusible link F is then provided to the high/low beam head lamps through the closed contacts of the head lamp relays (High/Low) and High/Low head lamp fuse.
With the dimmer/passing switch in HIGH, ground is provided to the high beam head lamps through the headlamp dimmer/passing switch. Ground is also provided to the high beam indicator in the instrument cluster.

Flash Operation
The flash feature works with the light switch in all positions (OFF, PARK or HEAD). With the light switch in OFF or PARK and the head lamp dimmer switch in FLASH, ground is provided to the high/low beam head lamp relays through the head lamp dimmer/passing switch. Battery voltage is applied to the high/low beam head lamps and the beam indicator, and the high/low beams and the high/low beam indicator light as long as the switch is held in the FLASH position.