Headlamp Washer System Components
The headlamp washer system consists of the following components:
• | Headlamp 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 |
• | Headlamp washer fluid level switch |
• | Windshield washer fluid level switch |
• | Windshield wiper washer switch |
Headlamp Washer System Operation
The headlamp washer pump is controlled by the headlamp washer module,
which is attached to the wiring harness behind the right headlamp assembly.
Battery positive voltage is supplied to the module and is used to power
the headlamp washer pump when the relay coil within the washer module is
energized. The dash integration module controls the low side of the relay
coil and the headlamps must be on for the relay to be energized. The windshield
washer pump control circuit is spliced to the headlamp washer module and
is used as a washer switch signal circuit. The headlamp washer fluid level
switch and the windshield washer fluid level switch provide a signal circuit
to the headlamp washer module and do not allow the relay to be energized
when the fluid level in either of the washer fluid reservoirs is low.