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Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control System - Service Information >> BRAKE ACTUATOR (for Gasoline Model) >> Removal [08/2021 - 09/2022] >> Procedure

Removal [08/2021 - 09/2022]: Procedure

  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.

  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 

    for 2GR-FKS: Refer to PROCEDURE - Step 1

    for A25A-FKS: Refer to PROCEDURE - Step 1

    NOTE:

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

    Refer to INITIALIZATION [08/2021 - 09/2022]

  3. DRAIN BRAKE FLUID 
    NOTE:

    If brake fluid leaks onto any painted surface, immediately wash it off.

  4. REMOVE FRONT WHEEL RH 

    Refer to PROCEDURE - Step 1

  5. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY 

    Refer to REMOVAL [06/2018 - ]

  6. REMOVE FRONT CENTER UPPER SUSPENSION BRACE SUB-ASSEMBLY 
    1. Disconnect the connector.
      GTY774188Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the 2 clamps and separate the wire harness.
    3. w/ Windshield Deicer System:
      1. Disconnect the connector.
        GTY780732Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Disengage the 3 clamps and separate the wire harness.
    4. Remove the 6 bolts, 4 nuts and front center upper suspension brace sub-assembly.
      GTY780748Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE BRAKE ACTUATOR WITH BRACKET 
    1. Release the lock lever and disconnect the connector from the brake actuator assembly.
      GTY815375Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Release the lock lever
      Disconnect the connector
      NOTE:

      Be careful not to allow any brake fluid to enter the connector.

    2. Use tags or make a memo to identify the places to reconnect the brake lines.
      GTY781225Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a From 1st Chamber of Brake Master Cylinder Sub-assembly
      *b From 2nd Chamber of Brake Master Cylinder Sub-assembly
      *c To Front Wheel Cylinder Assembly RH
      *d To Rear Wheel Cylinder Assembly LH
      *e To Rear Wheel Cylinder Assembly RH
      *f To Front Wheel Cylinder Assembly LH
    3. Using a union nut wrench, disconnect the 6 brake lines from the brake actuator assembly.
      GTY780745Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Do not kink or damage the brake lines.
      • Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.
    4. Disengage the 2 clamps to remove the No. 4 brake tube clamp from the brake lines.
      GTY792837Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Using a union nut wrench, disconnect the front No. 3 brake tube while holding the front flexible hose with a wrench.
      NOTE:
      • Do not kink or damage the front No. 3 brake tube.
      • Do not allow any foreign matter such as dirt or dust to enter the front No. 3 brake tube from the connecting parts.
      GTY766265Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Disengage the clamp and separate the front No. 3 brake tube.
      GTY780746Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not kink or damage the front No. 3 brake tube.

    7. Move aside the front No. 3 brake tube as shown in the illustration.
      GTY780750Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not apply excessive force to the front No. 3 brake tube.

    8. Disengage the clamp and remove the brake tube clamp.
      GTY828515Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. Apply protective tape to the vehicle body as shown in the illustration.
      GTY811156Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Protective Tape
    10. Remove the 2 bolts.
      GTY792840Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      Insert the tool from the bottom of the vehicle.

    11. Remove the nut and brake actuator with bracket.
      NOTE:
      • Do not kink or damage the brake lines.
      • Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.
      • Be careful not to allow any brake fluid to enter the connector.
      • Do not hold the brake actuator assembly by the connector.
      • Do not drop the brake actuator with bracket when carrying it.

      HINT: 

      Remove the brake actuator with bracket while avoiding the brake lines.

      GTY792839Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE BRAKE ACTUATOR ASSEMBLY 
    1. Remove the 3 bolts and brake actuator assembly from the brake actuator bracket assembly.
      GTY792830Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Do not hold the brake actuator assembly by the connector.
      • Do not drop the brake actuator assembly when carrying it.
  9. REMOVE NO. 2 BRAKE ACTUATOR CASE COLLAR 
    1. Remove the 3 nuts.
      GTY831155Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 3 No. 2 brake actuator case collars from the brake actuator bracket cushion.
  10. REMOVE BRAKE ACTUATOR BRACKET CUSHION 
    1. Remove the 3 brake actuator bracket cushions from the brake actuator bracket assembly.
      GTY792833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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