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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating / Air Conditioning System - Service Information (3 Of 3) >> Heater Water Pump >> Installation [12/2019 - 10/2022] >> Procedure

Installation [12/2019 - 10/2022]: Procedure

  1. INSTALL HEATER WATER PUMP ASSEMBLY 
    1. Temporarily install the heater water pump assembly with the bolt and 3 nuts.

      Torque: 9.8 N.m (100 kgf/cm, 87 in.lbf) 

    2. Engage the clamp.
    3. Connect the connector.
    4. Connect the water hose with the marking facing down and engage the clip within the area shown in the illustration.
      NOTE:

      Do not apply excessive force to the water hose.

      GTY858123Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a View A
      *b Marking (White)
      *c Clip Installation Angle (0 to 60°)
    5. Engage the claw to the original position as shown in the illustration.
      GTY943818Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Connect the water hose with the marking facing up and engage the clip within the area shown in the illustration.
      NOTE:

      Do not apply excessive force to the water hose.

      GTY938139Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a View A
      *b Marking (Green)
      *c Clip Installation Angle (270°)
  2. CONNECT WATER BY-PASS HOSE ASSEMBLY 
    1. Align the protrusion of the water by-pass hose assembly connector with the cutout in the heater water pump assembly and securely insert the water by-pass hose assembly connector to the stopper of the pipe.
      GTY878544Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Protrusion
      *b Cutout
    2. Push in the retainer.
      GTY910813Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Retainer
      Push
      Push in
    3. Check that the heater water pump assembly and water by-pass hose assembly connector are securely connected by pulling on them.
  3. INSTALL COWL VENTILATOR PANEL SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 15

  4. INSTALL FRONT UPPER SUSPENSION TO COWL BRACE SUB-ASSEMBLY LH 

    Refer to PROCEDURE - Step 16

  5. INSTALL FRONT UPPER SUSPENSION TO COWL BRACE SUB-ASSEMBLY RH 

    HINT: 

    Perform the same procedure as for the LH side.

  6. INSTALL FRONT FENDER SPLASH SHIELD SEAL FRONT LH 

    Refer to PROCEDURE - Step 18

  7. INSTALL FRONT FENDER SPLASH SHEILD SEAL FRONT RH 

    HINT: 

    Perform the same procedure as for the LH side.

  8. INSTALL FENDER SPLASH SHIELD SUB-ASSEMBLY REAR LH 

    Refer to PROCEDURE - Step 20

  9. INSTALL FENDER SPLASH SHIELD SUB-ASSEMBLY REAR RH 

    HINT: 

    Perform the same procedure as for the LH side.

  10. INSTALL WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY 

    Refer to INSTALLATION [12/2019 - ]

  11. ADD ENGINE COOLANT 

    Refer to PROCEDURE - Step 2

  12. INSPECT FOR COOLANT LEAK 

    Refer to PROCEDURE - Step 1

  13. INSTALL REAR ENGINE UNDER COVER RH 

    Refer to PROCEDURE - Step 78 [12/2019 - 09/2020] , or refer to PROCEDURE - Step 78 [09/2020 - 10/2022]

  14. INSTALL REAR ENGINE UNDER COVER LH 

    Refer to PROCEDURE - Step 79 [12/2019 - 09/2020] , or refer to PROCEDURE - Step 79 [09/2020 - 10/2022]

  15. INSTALL NO. 1 ENGINE UNDER COVER 

    Refer to PROCEDURE - Step 80 [12/2019 - 09/2020] , or refer to PROCEDURE - Step 80 [09/2020 - 10/2022]

  16. INSTALL FRONT WHEEL OPENING EXTENSION PAD LH 

    Refer to PROCEDURE - Step 81 [12/2019 - 09/2020] , or refer to PROCEDURE - Step 81 [09/2020 - 10/2022]

  17. INSTALL FRONT WHEEL OPENING EXTENSION PAD RH 

    Refer to PROCEDURE - Step 82 [12/2019 - 09/2020] , or refer to PROCEDURE - Step 82 [09/2020 - 10/2022]

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