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Home >> Toyota >> 2025 >> RAV4 Plug-In Hybrid XSE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 61 (Engine Control System (A25A-FKS) - Service Information) >> Engine Coolant Temperature Sensor >> Installation [08/2020 - ] >> Procedure

Installation [08/2020 - ]: Procedure

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  1. INSTALL ENGINE COOLANT TEMPERATURE SENSOR 

    HINT: 

    Perform "Inspection After Repair" after replacing the engine coolant temperature sensor.

    Refer to INITIALIZATION [08/2020 - 12/2021] , or refer to INITIALIZATION [12/2021 - ]

    1. Apply a light coat of engine coolant to the O-ring of the engine coolant temperature sensor.
    2. Install the engine coolant temperature sensor to the water outlet with a new clip.
      NOTE:
      • If the engine coolant temperature sensor has been struck or dropped, replace it.
      • If reusing the engine coolant temperature sensor, be sure to inspect the O-ring.
      • Make sure that the O-ring is not cracked or moved out of place when installing the engine coolant temperature sensor.
    3. Connect the engine coolant temperature sensor connector.
  2. INSTALL BATTERY 

    Refer to INSTALLATION [11/2018 - 10/2023] , or refer to INSTALLATION [10/2023 - ]

  3. INSTALL NO. 2 ENGINE COOLANT TEMPERATURE SENSOR (w/ Grille Shutter) 
    1. Apply a light coat of engine coolant to the O-ring of the No. 2 engine coolant temperature sensor.
    2. Install the No. 2 engine coolant temperature sensor to the water outlet with a new clip.
      NOTE:
      • If the No. 2 engine coolant temperature sensor has been struck or dropped, replace it.
      • If reusing the No. 2 engine coolant temperature sensor, be sure to inspect the O-ring.
      • Make sure that the O-ring is not cracked or moved out of place when installing the No. 2 engine coolant temperature sensor.
    3. Connect the No. 2 engine coolant temperature sensor connector.
  4. INSTALL AIR CLEANER ASSEMBLY WITH AIR CLEANER HOSE (w/ Grille Shutter) 

    See step  2

  5. INSTALL INLET AIR CLEANER ASSEMBLY (w/ Grille Shutter) 

    See step  3

  6. INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY (w/ Grille Shutter) 

    Refer to PROCEDURE - Step 76 [08/2020 - 12/2021] , or refer to PROCEDURE - Step 76 [12/2021 - ]

  7. ADD ENGINE COOLANT 

    Refer to REPLACEMENT [11/2018 - ]

  8. INSPECT FOR COOLANT LEAK 

    Refer to PROCEDURE - Step 1