Tacoma PreRunner V6-4.0L (1GR-FE) (2006)
Washer Fluid Level Switch: Testing and Inspection
INSPECT WASHER FLUID LEVEL WARNING SWITCH
a. Disconnect the washer level warning switch connector.
b. Turn the ignition switch to the ON position.
c. Ground the terminal of the wire harness side connector, then check the washer level warning light.
OK: Washer level warning light comes on.
d. Reconnect the washer level warning switch connector.