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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) >> FRONT EVAPORATOR TEMPERATURE SENSOR (for Gasoline Model) >> Installation [12/2019 - ] >> Procedure

Installation [12/2019 - ]: Procedure

  1. INSTALL NO. 1 COOLER THERMISTOR 
    1. w/o Stop And Start System:
      1. Install the No. 1 cooler thermistor as shown in the illustration.
        GTY866811Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Securing Part
        *b Sensor Part

        Installation Position

        Part Length
        A 50.0 mm (1.97 in.)
        B 61.1 mm (2.41 in.)
        NOTE:
        • Be sure to insert the No. 1 cooler thermistor only once because reinserting it into the same position will not allow it to be firmly secured.
        • When reusing the No. 1 cooler evaporator sub-assembly, insert the No. 1 cooler thermistor one row next to the one that has been used previously (X in the illustration).
        • After inserting the No. 1 cooler thermistor, do not apply excessive force to the wire.
        • Directly insert the No. 1 cooler thermistor until the edge of the plastic case "a" comes into contact with the No. 1 cooler evaporator sub-assembly "b".
    2. w/ Stop And Start System:
      1. Install the No. 1 cooler thermistor as shown in the illustration.
        GTY871758Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Securing Part
        *b Sensor Part

        Installation Position

        Part Length
        A 50.0 mm (1.97 in.)
        B 25.0 mm (0.984 in.)
        C 54.4 mm (2.14 in.)
        D 61.1 mm (2.41 in.)
        NOTE:
        • Be sure to insert the No. 1 cooler thermistor only once because reinserting it into the same position will not allow it to be firmly secured.
        • When reusing the No. 1 cooler evaporator sub-assembly, insert the No. 1 cooler thermistor one row next to the one that has been used previously (X in the illustration).
        • After inserting the No. 1 cooler thermistor, do not apply excessive force to the wire.
        • Directly insert the No. 1 cooler thermistor until the edge of the plastic case "a" comes into contact with the No. 1 cooler evaporator sub-assembly "b".
  2. INSTALL NO. 1 COOLER EVAPORATOR SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 2 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 2 [10/2022 - 11/2023] , or refer to PROCEDURE - Step 2 [11/2023 - ]

  3. INSTALL COOLER EXPANSION VALVE 

    Refer to PROCEDURE - Step 3 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 3 [10/2022 - 11/2023] , or refer to PROCEDURE - Step 3 [11/2023 - ]

  4. INSTALL COOLING UNIT PARTS 

    Refer to PROCEDURE - Step 4 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 4 [10/2022 - ]

  5. INSTALL HEATER RADIATOR UNIT SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 5 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 5 [10/2022 - ]

  6. INSTALL HEATER CLAMP 

    Refer to PROCEDURE - Step 6 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 6 [10/2022 - ]

  7. INSTALL HEATER GROMMET 

    Refer to PROCEDURE - Step 7 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 7 [10/2022 - ]

  8. INSTALL NO. 1 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 9 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 9 [10/2022 - 11/2023] , or refer to PROCEDURE - Step 9 [11/2023 - ]

  9. INSTALL AIR CONDITIONING HARNESS ASSEMBLY 

    Refer to PROCEDURE - Step 14 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 14 [10/2022 - 11/2023] , or refer to PROCEDURE - Step 12 [11/2023 - ]

  10. INSTALL BLOWER ASSEMBLY 

    Refer to INSTALLATION [12/2019 - ]

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