Sienna FWD V6-3.3L (3MZ-FE) (2006)
Oil Pressure Warning Lamp/Indicator: Testing and Inspection
INSPECT OIL PRESSURE WARNING LIGHT
a. Disconnect the connector from the low oil pressure switch.
b. Turn the ignition switch to the ON position.
c. Ground the terminal of the wire harness side connector, then check the low oil pressure warning light.
OK: OIL PRESSURE warning light comes on.