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Home >> Lexus >> 2015 >> IS 250 Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Engine Intake / Exhaust System (8AR-FTS) - Service Information) >> Intake Air Control Valve >> Removal [08/2015 - ] >> Procedure

Removal [08/2015 - ]: Procedure

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  1. PRECAUTION 
    NOTE:

    After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Refer to PRECAUTION [08/2015 - 10/2016] , or refer to PRECAUTION [10/2016 - 10/2017] , or refer to PRECAUTION [10/2017 - 09/2020] , or refer to PRECAUTION [09/2020 - ]

  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    NOTE:

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

    Refer to INITIALIZATION [08/2015 - 10/2016] , or refer to INITIALIZATION [10/2016 - 10/2017] , or refer to INITIALIZATION [10/2017 - 09/2020] , or refer to INITIALIZATION [09/2020 - 11/2021] , or refer to INITIALIZATION [11/2021 - 09/2022] , or refer to INITIALIZATION [09/2022 - 10/2023] , or refer to INITIALIZATION [10/2023 - ]

  3. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 3 [08/2015 - 10/2016] , or refer to PROCEDURE - Step 3 [10/2016 - 09/2020] , or refer to PROCEDURE - Step 3 [09/2020 - ]

  4. REMOVE AIR CLEANER HOSE ASSEMBLY 
    1. Remove the bolt.
      GTY639940Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Slide the clip and disconnect the No. 1 ventilation hose from the air cleaner hose assembly.
    3. Loosen the 2 hose clamps and remove the air cleaner hose assembly.
  5. REMOVE ENGINE ROOM ECU COVER 

    Refer to PROCEDURE - Step 3

  6. DISCONNECT ENGINE WIRE 
    1. Raise the lever while pushing the lock on the lever, and disconnect the ECM connector.
      GTY619871Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Push
      *b Lock
      NOTE:

      After disconnecting the ECM connector, make sure that dirt, water or other foreign matter does not contact the connecting parts of the ECM connector.

    2. Remove the nut.
      GTY619605Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disengage the clamp.
      GTY619607Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Disconnect the connector and remove the bolt.
      GTY674052Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Disengage the clamp.
      GTY619603Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Disconnect the intake air control valve (air by-pass valve assembly) connector.
      GTY619601Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Disconnect the camshaft timing oil control solenoid assembly connector.
      GTY649680Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Camshaft Timing Oil Control Solenoid Assembly Connector
      *b Engine Coolant Temperature Sensor Connector
    8. Disconnect the engine coolant temperature sensor connector.
    9. Disengage the clamp.
      GTY678548Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    10. Remove the 2 nuts.
      GTY639941Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE INTAKE AIR CONTROL VALVE (AIR BY-PASS VALVE ASSEMBLY) 
    1. Using a T30 "TORX" socket wrench, remove the 3 bolts and intake air control valve (air by-pass valve assembly) shown in the illustration.
      GTY639938Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not drop or subject any component of the turbocharger sub-assembly to impact. If any component of the turbocharger sub-assembly is dropped or subjected to a strong impact, replace it with a new one.