Air Inlet Servomotor: Inspection

WARNING: This page is about a different car, the 2003 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE GLOVE COMPARTMENT DOOR
REMOVE BRACKET
1. Disconnect the wire harness clamp.
2. Remove the 2 bolts and bracket.
Fig 1: Removing 2 Bolts And Bracket
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE AIR INLET SERVOMOTOR
1. Disconnect the connector.
2. Remove the 3 screws and servomotor.
Fig 2: Removing 3 Screws And Servomotor
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT AIR INLET SERVOMOTOR OPERATION
1. Connect the positive (+) lead from the battery to terminal 7 and negative (-) lead to terminal 6, then check that the arm turns to "FRESH" side smoothly.
  
  Fig 3: Inspecting Air Inlet Servomotor Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Connect the positive (+) lead from the battery to terminal 6 and negative (-) lead to terminal 7, then check that the arm turns to "RECIRC" side smoothly.
If operations are not as specified, replace the servomotor.

Fig 4: Inspecting Air Inlet Servomotor Operation
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT POSITION SENSOR RESISTANCE
Measure resistance between terminals at servomotor arm each position as shown in the chart.

Fig 5: Sensor Resistance Condition Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 6: Inspecting Position Sensor Resistance
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If resistance is not as specified, replace the servomotor.
INSTALL AIR INLET SERVOMOTOR
1. Install the servomotor with the 3 screws.
2. Connect the connector.
INSTALL BRACKET
1. Install the bracket with 2 bolts.
2. Connect the wire harness clamp.
  
  Fig 7: Installing Air Inlet Servomotor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSTALL GLOVE COMPARTMENT DOOR
(See )

Fig 8: Installing Bracket With 2 Bolts
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002