2021 Lexus RC F BaseFACTORY OEM SERVICE PROCEDURE

Removal [09/2014 - ]: Procedure

  1. 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 [09/2014 - 08/2016] , or refer to INITIALIZATION [08/2016 - 11/2017] , or refer to INITIALIZATION [11/2017 - 03/2019] , or refer to INITIALIZATION [03/2019 - 01/2023] , or refer to INITIALIZATION [01/2023 - 10/2023] , or refer to INITIALIZATION [10/2023 - ]

    HINT: 

    Disconnect the cable from the negative (-) battery terminal so that the maximum retard angle of the camshaft timing control motor with EDU assembly will be learned when the cable is reconnected.

  2. REMOVE V-BANK COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 2 [09/2014 - 05/2018] , or refer to PROCEDURE - Step 2 [05/2018 - 03/2019] , or refer to PROCEDURE - Step 2 [03/2019 - ]

  3. REMOVE CAMSHAFT TIMING CONTROL MOTOR WITH EDU ASSEMBLY LH 
    1. Disengage the clamp.
      GTY515713Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the clamp and disconnect the 2 camshaft timing control motor with EDU assembly LH connectors.
      GTY515714Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 3 bolts and camshaft timing control motor with EDU assembly LH from the timing chain or belt cover sub-assembly.
      GTY515711Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      If the camshaft timing control motor with EDU assembly LH has been struck or dropped, replace it.

    4. Remove the O-ring from the timing chain or belt cover sub-assembly.
      GTY515712Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. DISCONNECT VENTILATION HOSE 

    See step  5

  5. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE 

    See step  6

  6. REMOVE COOL AIR INTAKE DUCT SEAL 

    Refer to PROCEDURE - Step 1 [09/2014 - 11/2017] , or refer to PROCEDURE - Step 1 [11/2017 - 03/2019] , or refer to PROCEDURE - Step 1 [03/2019 - 01/2023] , or refer to PROCEDURE - Step 1 [01/2023 - ]

  7. REMOVE ENGINE ROOM ECU COVER 

    See step  3

  8. DISENGAGE ENGINE WIRE 
    1. Disengage the wire harness from the engine room ECU box.

      See step  4

    2. Push the lock and move the lock lever of each connector (with lock) as shown in the illustration and disconnect the 6 connectors (with lock) from the 2 injector drivers.
      GTY499899Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Lock Lever
      *b Lock
      *c Connector (with Lock)
    3. Disconnect the 2 injector driver connectors.
    4. Remove the 6 bolts and 4 nuts.
      GTY507846Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt Nut
      Connector - -
    5. Disengage the 16 clamps.
    6. Disconnect the 13 connectors.
  9. REMOVE CAMSHAFT TIMING CONTROL MOTOR WITH EDU ASSEMBLY RH 
    1. Remove the 3 bolts and camshaft timing control motor with EDU assembly RH from the timing chain or belt cover sub-assembly.
      GTY515715Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      If the camshaft timing control motor with EDU assembly RH has been struck or dropped, replace it.

    2. Remove the O-ring from the timing chain or belt cover sub-assembly.
      GTY521504Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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