Low Washer Fluid Level Sensor

The low washer fluid level sensor is a reed type switch. The float assembly uses a magnet to close the contacts on the switch. The low washer fluid sensor is hardwired to the BCM through a single signal wire and is grounded to a body ground through a separate circuit. The BCM provides a battery reference voltage to the low washer fluid level sensor. When the washer fluid level is low, the float drops, closing the switch and pulling the reference voltage low. When the washer fluid level is high, the float lifts off the switch and opens the circuit to the BCM, sending the reference voltage high. The BCM monitors the washer fluid level and provides the washer fluid level low message to the IPC.