Sequoia LTD 4WD V8-4.7L (2UZ-FE) (2001)
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Dimmer Switch: Testing and Inspection
INSPECT LIGHT CONTROL RHEOSTAT
a. Connect terminal 1 and 2 through a 3.4 - W test bulb.
b. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 3.
c. Turn the rheostat knob to fully counterclockwise, check that the test bulb goes out.
d. Gradually turn the rheostat knob to clockwise, check that the test bulb brightness changes from dark to bright.
If operation is not as specified, replace the rheostat.
