Washer Fluid Level Indicator: Description and Operation
With the Ignition Switch in "START" or "RUN", voltage is present at pin A of the Washer Fluid Level Sensor. With the amount of washer fluid in the washer fluid reservoir below a pre-determined value, the washer fluid level sensor completes a circuit between pin B and ground. Current flows through the METER Fuse, the Indicator and then to ground, and the Indicator illuminates.