Air Inlet Control Servo Motor: Inspection

WARNING: This page is about a different car, the 2006 Scion tC. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT AIR INLET SERVO MOTOR
1. Inspect the servo motor operation.
  
  Fig 1: Inspecting Servo Motor Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Connect the positive (+) lead from the battery to terminal 3 and negative (-) lead to terminal 2, and then check that the arm turns to the "FRESH" side smoothly.
  2. Connect the positive (+) lead from the battery to terminal 3 and negative (-) lead to terminal 1, and then check that the arm turns to the "RECIRCULATION" side smoothly.
    If the operation is not as specified, replace the air inlet servo motor.
Fig 2: Identifying Air Inlet Servomotor Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002