Headlamp Washer System Components
The headlamp washer system consists of the following components:
• | Washer fluid level switch |
• | HDLP WASH 30A circuit breaker |
Headlamp Washer System Controls
The headlamp washer system is controlled by the following components:
• | Dash integration module |
• | Washer fluid level switch |
• | Windshield wiper/washer switch |
Headlamp Washer System Operation
Battery voltage is supplied to the headlamp washer relay switched input. The
windshield washer pump control circuit is spliced to the headlamp washer relay.
When the windshield washer switch is pressed, battery voltage is supplied on washer
switch signal circuit to the headlamp washer relay which energizes the relay. This
allows battery voltage from the headlamp washer relay switched input to relay switched
output to supply voltage circuit of the headlamp washer pump. The windshield washer
fluid level switch also provides a signal circuit to the headlamp washer relay and
does not allow the relay to be energized when the fluid level is insufficient for
pump operation. The dash integration module controls the ground of the headlamp
washer relay and the headlamps must be on for the relay to receive ground and operate.