Tundra 4WD V8-4.7L (2UZ-FE) (2003)
move the lumbar support to front end position.
b. Continue to apply voltage, check that a circuit breaker operation noise can be heard within 4 to 60 seconds.
c. Reverse the polarity, check that the lumbar support begins to move release side with in approximately 60 seconds.
If operation is not as specified, replace the lumber support adjuster.