Sequoia LTD 4WD V8-4.7L (2UZ-FE) (2001)
Dome Lamp Switch: Testing and Inspection
INSPECT DOME LIGHT SWITCH CONTINUITY
a. Disconnect the connector from the personal light.
b. Push the personal light switch On, check that continuity exists between terminal 3 and terminal 1
c. Turn the light switch to DOOR, check that continuity exists between terminal 2 and 1.
If operation is as specified, replace the switch.
If continuity is not as specified, replace a bulb or rear personal light.