Air Mix 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 MIX CONTROL 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 4 and negative (-) lead to terminal 5, and then check that the lever turns to the "MAX HOT" position smoothly.
  2. Connect the positive (+) lead from the battery to terminal 5 and negative (-) lead to terminal 4, and then check that the lever turns to the "MAX COOL" position smoothly.
    If the operation is not as specified, replace the air mix control servo motor.
Fig 2: Identifying Air Mix Servo Motor Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002