LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2020 >> Highlander L, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 14 (Engine Control System (T24A-FTS) - Service Information) >> Engine Coolant Temperature Sensor >> Inspection [10/2022 - ] >> Procedure

Inspection [10/2022 - ]: Procedure

WARNING: This page is about a different car, the 2025 Toyota Highlander, 2024 Toyota Highlander, and 2023 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT ENGINE COOLANT TEMPERATURE SENSOR (for Outlet Side) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      1 - 2 20°C (68°F) 2.32 to 2.59 kΩ
      80°C (176°F) 0.310 to 0.326 kΩ
      NOTE:

      If checking the engine coolant temperature sensor in water, be careful not to allow water to contact the terminals. After checking, wipe the water off the engine coolant temperature sensor.

      If the result is not as specified, replace the engine coolant temperature sensor.

      GTY749703Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Engine Coolant Temperature Sensor)
  2. INSPECT ENGINE COOLANT TEMPERATURE SENSOR (for Water Inlet Housing Side) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      1 (E2) - 2 (THW3) 20°C (68°F) 2.32 to 2.59 kΩ
      80°C (176°F) 0.310 to 0.326 kΩ
      NOTE:

      If checking the engine coolant temperature sensor in water, be careful not to allow water to contact the terminals. After checking, wipe the water off the engine coolant temperature sensor.

      If the result is not as specified, replace the engine coolant temperature sensor.

      GTY1106879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Engine Coolant Temperature Sensor)
  3. INSPECT ENGINE COOLANT TEMPERATURE SENSOR (for Cylinder Head Side) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      1 (E2) - 2 (THW2) 20°C (68°F) 2.32 to 2.59 kΩ
      80°C (176°F) 0.310 to 0.326 kΩ
      NOTE:

      If checking the engine coolant temperature sensor in water, be careful not to allow water to contact the terminals. After checking, wipe the water off the engine coolant temperature sensor.

      If the result is not as specified, replace the engine coolant temperature sensor.

      GTY1106878Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Engine Coolant Temperature Sensor)
scientia non olet · About LEMON Manuals