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Inspection [02/2024 - ]: Procedure

  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
      C73-1 (E2) - C73-2 (THW) 20°C (68°F) 2.32 to 2.59 kΩ
      C73-1 (E2) - C73-2 (THW) 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.

      GTY1224944Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Engine Coolant Temperature Sensor)
      1. If the result is not as specified, replace the 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
      D37-1 (E2) - D37-2 (THW3) 20°C (68°F) 2.32 to 2.59 kΩ
      D37-1 (E2) - D37-2 (THW3) 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.

      GTY1225930Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Engine Coolant Temperature Sensor)
      1. If the result is not as specified, replace the 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
      D36-1 (E2) - D36-2 (THW2) 20°C (68°F) 2.32 to 2.59 kΩ
      D36-1 (E2) - D36-2 (THW2) 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.

      GTY1219816Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Engine Coolant Temperature Sensor)
      1. If the result is not as specified, replace the engine coolant temperature sensor.
  4. INSPECT ENGINE COOLANT TEMPERATURE SENSOR 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A20-1 (E2) - A20-2 (THTW) 20°C (68°F) 2.32 to 2.59 kΩ
      A20-1 (E2) - A20-2 (THTW) 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.

      GTY1224940Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Engine Coolant Temperature Sensor)
      1. If the result is not as specified, replace the engine coolant temperature sensor.