Headlamp: Description and Operation
CIRCUIT DESCRIPTIONLow Beam Operation
With the ignition switch in ON, battery voltage is applied to the coil of the head lamp relays (low and high) from fuse 10. With the light switch in HEAD and the dimmer switch in low, ground is provided to the coil of the low head lamp relays through the light switch. Battery voltage from the head lamps fuse is then provided to the low beam head lamps through the closed contacts of the head lamp relay (low). 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 (low and high) through fuse 10. with the light switch in HEAD and the dimmer switch in high, ground is provided to the coil of the high head lamp relay through the light switch. Battery voltage from the head lamp fuse is then provided to the high beam head lamps through the closed contacts of the head amp relay (high). With the head lamp dimmer/passing switch in HIGH, ground is provided to the high beam head lamps through the head lamp dimmer/passing Switch. Battery voltage 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 head lamps and the Low and High head lamp relays through the head lamp dimmer/passing switch. Battery voltage is applied to the high beam head lamp and the beam indicator, and the high beams and the high beam indicator light as long as the switch is held in the FLASH position.