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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 HV Model) >> Installation [12/2019 - 10/2022] >> Procedure

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

  1. INSTALL NO. 1 COOLER THERMISTOR 
    1. Install the No. 1 cooler thermistor as shown in the illustration.
      GTY885457Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Securing Part
      *b Sensor Part

      Installation Position

      Part Length
      A 50.0 mm (1.97 in.)
      B 87.9 mm (3.46 in.)
      C 188.3 mm (7.41 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

  3. INSTALL COOLER EXPANSION VALVE 

    Refer to PROCEDURE - Step 3

  4. INSTALL COOLING UNIT PARTS 

    Refer to PROCEDURE - Step 4

  5. INSTALL HEATER RADIATOR UNIT SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 5

  6. INSTALL HEATER CLAMP 

    Refer to PROCEDURE - Step 6

  7. INSTALL HEATER GROMMET 

    Refer to PROCEDURE - Step 7

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

    Refer to PROCEDURE - Step 9

  9. INSTALL AIR CONDITIONING HARNESS ASSEMBLY 

    Refer to PROCEDURE - Step 12

  10. INSTALL BLOWER ASSEMBLY 

    Refer to INSTALLATION [12/2019 - ]

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