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Home >> Toyota >> 2021 >> RAV4 Prime XSE >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System (Hydraulic) - Service Information (PHEV) >> Brake Booster >> Installation [06/2020 - 10/2022] >> Procedure

Installation [06/2020 - 10/2022]: Procedure

  1. INSTALL NO. 1 RESERVOIR HOSE 
    1. Install the No. 1 reservoir hose, and slide the 2 clips to secure it.
      GTY976958Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Paint Mark *b Rib (A)
      *c Rib (B) *d Center of Rib (A)
      *e Center of Rib (B) *f within 40°
      *g within 45° - -
      Front of the Vehicle Outside of the Vehicle
      NOTE:
      • Make sure that the paint mark is facing the front of the vehicle.
      • Install the clip within the range shown in the illustration.
  2. INSTALL NO. 2 RESERVOIR HOSE 
    1. Install the No. 2 reservoir hose, and slide the 2 clips to secure it.
      GTY976264Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Paint Mark *b Rib (A)
      *c Rib (B) *d Center of Rib (A)
      *e Center of Rib (B) *f within 40°
      *g within 45° - -
      Front of the Vehicle Outside of the Vehicle
      NOTE:
      • Make sure that the paint mark is facing the front of the vehicle (Upper Side).
      • Make sure that the paint mark is outside of the vehicle (Lower Side).
      • Install the clip within the range shown in the illustration.
  3. INSTALL BRAKE MASTER CYLINDER GASKET 
    1. Install a new brake booster gasket to the brake master cylinder with pump assembly.
  4. INSTALL BRAKE MASTER CYLINDER WITH PUMP ASSEMBLY 
    1. Install the brake master cylinder with pump assembly with the 4 nuts.

      Torque: 12.7 N.m (130 kgf/cm, 9 ft.lbf) 

      NOTE:
      • Do not apply excessive force to the brake lines.
      • Be careful not to allow brake fluid to enter the connector.
      • If installing a new brake master cylinder with pump assembly, do not remove the hole plugs before connecting the brake lines because the brake booster with master cylinder assembly is filled with brake fluid.
      • Do not carry the brake master cylinder with pump assembly by the parts shown in the illustration.
      GTY975887Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 1 Skid Control ECU
      *2 Reservoir Hose
      *3 Master Cylinder Push Rod Clevis
      *4 Boot
      *5 Reservoir
      *6 No. 1 Brake Actuator Tube
      *7 No. 1 Wire Clamp Bracket
      *8 Brake Booster with Accumulator Pump Assembly
  5. INSTALL PUSH ROD PIN 
    1. Apply lithium soap base glycol grease to the push rod pin.
      GTY759014Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Lithium Soap Base Glycol Grease
    2. Connect the master cylinder push rod clevis to the brake pedal support assembly with the push rod pin, and install a new clip.
      GTY975438Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      Be sure to install the push rod pin in the correct direction.

  6. INSTALL BRAKE PEDAL RETURN SPRING 
    1. Install the brake pedal return spring to the brake pedal support assembly.
      GTY975619Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Up
      Front of the Vehicle
      NOTE:

      Attach the bottom part of the brake pedal return spring first, making sure that the open part of the hook is facing the front of the vehicle. Attach the top part of the brake pedal return spring second, making sure that the open part of the hook is facing the rear of the vehicle.

  7. CONNECT ENGINE ROOM MAIN WIRE 
    1. GTY937398Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Engage the 2 clamps to the brake pedal support assembly.

    2. Connect the connector to the brake pedal stroke sensor assembly.
  8. INSTALL STOP LIGHT SWITCH ASSEMBLY 

    Refer to PROCEDURE - Step 2

  9. CONNECT BRAKE LINE 
    1. Engage the 5 clamps to install a new brake tube clamp to the brake lines.
      GTY976253Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not kink or damage the brake lines.

    2. Engage the 4 clamps to install a new brake tube clamp to the brake lines.
      GTY976260Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not kink or damage the brake lines.

    3. Using a union nut wrench, connect the 2 brake lines to the brake master cylinder with pump assembly.

      Specified tightening torque 

      Torque: 19.5 N.m (199 kgf/cm, 14 ft.lbf) 

      NOTE:
      • Do not kink or damage the brake lines.
      • Do not allow the brake lines to twist or interfere with other parts or the vehicle body during tightening.
      • Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.

      HINT: 

      • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.

        Refer to PRECAUTION [06/2020 - ]

      • When using a union nut wrench (fulcrum length of 20 mm (0.787 in.)) + torque wrench (fulcrum length of 162 mm (6.38 in.)):

        17.4 N.m (177 kgf/cm, 13 ft.lbf)

      GTY975100Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Torque Wrench Fulcrum Length
      *b Union Nut Wrench
  10. CONNECT ENGINE ROOM MAIN WIRE 
    1. Engage the clamp to the brake master cylinder with pump assembly.
      GTY920382Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Connect the connector
      Lock the lock lever
    2. Connect the connector to the brake master cylinder with pump assembly and lock the lock lever.
      NOTE:
      • Make sure that the connector is locked securely.
      • Make sure that the connector can be connected smoothly.
      • Do not allow water, oil or dirt to enter the connector.
    3. Connect the brake fluid level warning switch connector.
    4. GTY975485Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Connect the brake booster pump connector.

  11. FILL RESERVOIR WITH BRAKE FLUID 
  12. INSTALL NO. 2 AIR DUCT SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 7

  13. INSTALL LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY 

    Refer to INSTALLATION [06/2020 - 10/2022]

  14. INSTALL ECM 

    Refer to INSTALLATION [06/2020 - ]

  15. UPDATE ECU SECURITY KEY 

    Refer to UPDATE ECU SECURITY KEY [06/2020 - ]

  16. BLEED BRAKE SYSTEM 

    See step  3

  17. INSPECT AND ADJUST BRAKE PEDAL 

    Refer to ADJUSTMENT [06/2020 - ] 

  18. INSTALL COWL VENTILATOR PANEL SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 48

  19. INSTALL COWL VENTILATOR SPLASH SHIELD 

    Refer to PROCEDURE - Step 49

  20. INSTALL WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY 

    Refer to INSTALLATION [06/2020 - ]

  21. PERFORM CALIBRATION 

    Refer to UTILITY [06/2020 - ]

  22. CHECK AND CLEAR DTC 

    Refer to DTC CHECK / CLEAR [06/2020 - ]

  23. INSPECT SRS WARNING LIGHT 

    Refer to OPERATION CHECK [06/2020 - ]

  24. INITIALIZATION AFTER RECONNECTING AUXILIARY BATTERY TERMINAL 

    Refer to WORK PROCEDURE [06/2020 - 10/2022]

    HINT: 

    When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

    Refer to AUTOMATIC LEARNING CHART [06/2020 - 12/2021] , or refer to AUTOMATIC LEARNING CHART [12/2021 - ]