Sequoia 4WD V8-4.7L (2UZ-FE) (2006)
Washer Fluid Level Indicator: Testing and Inspection
INSPECT WASHER LEVEL WARNING LIGHT OPERATION
a. Disconnect the connectors from the combination meter.
b. Connect the negative (-) lead from the battery to terminal 16.
c. Turn the ignition switch ON and check that the warning light comes on.
If the warning light does not come on, test the bulb.