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Home >> Toyota >> 2021 >> C-HR LE >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Control System - Service Information >> Continuously Variable Valve Lift Controller >> Removal [10/2017 - 08/2020] >> Procedure
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Removal [10/2017 - 08/2020]: Procedure

  1. PRECAUTION 
    NOTE:

    After turning the ignition 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 notice before proceeding with work.

    Refer to PRECAUTION [02/2017 - 05/2018] , or refer to PRECAUTION [05/2018 - ]

  2. REMOVE BATTERY 

    Refer to REMOVAL [02/2017 - 08/2020]

  3. REMOVE NO. 2 CYLINDER HEAD COVER 

    See step  1

  4. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE 

    See step  3

  5. DISCONNECT ENGINE WIRE (w/ Canister Pump Module) 
    1. Disengage the 10 clamps, and then disconnect the 22 connectors.
      GTY758837Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Bolt *2 Nut
    2. Remove the 3 bolts and nut, and disconnect the engine wire.
  6. DISCONNECT ENGINE WIRE (w/o Canister Pump Module) 
    1. Disengage the 10 clamps, and then disconnect the 21 connectors.
      GTY761659Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Bolt *2 Nut
    2. Remove the 3 bolts and nut, and disconnect the engine wire.
  7. REMOVE IGNITION COIL ASSEMBLY 
    1. Remove the 4 bolts and 4 ignition coil assemblies from the cylinder head cover sub-assembly.
      GTY767240Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE PURGE VALVE (PURGE VSV) 
    1. Disconnect the No. 1 fuel vapor feed hose from the intake manifold.
      GTY767239Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Slide the clip and disconnect the fuel vapor feed hose from the purge valve (purge VSV).
      GTY767238Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 2 bolts and purge valve (purge VSV) from the cylinder head cover sub-assembly.
  9. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - STEP 12

  10. REMOVE CYLINDER HEAD COVER GASKET 

    Refer to PROCEDURE - STEP 13

  11. REMOVE CONTINUOUSLY VARIABLE VALVE LIFT CONTROLLER ASSEMBLY 
    1. Using a screwdriver, slide the valve lift control actuator connector clip from the valve lift control actuator connector.
      GTY426427Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Slide only the upper part of the valve lift control actuator connector clip, as the straight pin will fall out from the bottom if the valve lift control actuator connector clip is completely removed.

    2. Rotate the crankshaft clockwise until the intake camshaft position at the No. 1 cylinder and No. 3 cylinder are as shown in the illustration.
      GTY756423Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a No. 1 Cylinder
      *b No. 3 Cylinder

      HINT: 

      If the intake camshaft position is not as shown in the illustration, rotate the crankshaft clockwise again so that the intake camshaft is aligned as shown in the illustration.

    3. Turn the crankshaft counterclockwise approximately 10 to 15°.
    4. Using 2 screwdrivers, lightly pry the valve lift control actuator connector to make a space between the continuously variable valve lift controller assembly and camshaft housing sub-assembly.
      GTY705685Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Do not forcibly pry the valve lift control actuator connector.
      • Do not damage the camshaft housing sub-assembly and camshaft bearing cap.
    5. Using a magnet hand, remove the straight pin from the valve lift control actuator connector.
      GTY423229Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not drop the straight pin into the engine.

      HINT: 

      • The straight pin can be removed by utilizing the space between the continuously variable valve lift controller assembly and camshaft housing sub-assembly to move the continuously variable valve lift controller assembly so that there is no load on the straight pin.
      • If the straight pin cannot removed easily, slightly turn the crankshaft clockwise and then counterclockwise.
    6. Using a screwdriver, remove the valve lift control actuator connector clip from the valve lift control actuator connector.
      GTY447465Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not drop the valve lift control actuator connector clip into the engine.

    7. Remove the 2 nuts and wire harness clamp bracket from the camshaft housing sub-assembly.
      GTY450969Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Remove the bolt from the continuously variable valve lift controller assembly.
    9. Remove the continuously variable valve lift controller assembly from the camshaft housing sub-assembly.
      GTY426418Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      If the continuously variable valve lift controller assembly has been struck or dropped, replace it.

    10. Remove the O-ring from the continuously variable valve lift controller assembly.
      GTY744817Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 O-ring
    11. Remove the valve lift control actuator connector from the valve rocker shaft assembly.
      GTY447425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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