Tundra 2WD V6-3.4L (5VZ-FE) (2004)
Door/Trunk Ajar Indicator/Lamp: Testing and Inspection
INSPECT OPEN DOOR WARNING LIGHT
(a)
Disconnect the connector from the door courtesy switch and ground terminal on the wire harness side.
(b)
Turn the ignition switch ON, and check that the warning light lights up.
If the warning light does not light up, inspect the bulb.