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Engine Coolant Temperature Sensor: Inspection

  1. INSPECT ENGINE COOLANT TEMPERATURE SENSOR 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      SPECIFIED CONDITION CHART

      Condition Specified Condition
      Approximately 20C (68°F) 2.32 to 2.59 kΩ
      Approximately 80°C (176°F) 0.310 to 0.326 kΩ
      NOTE: When checking the engine coolant temperature sensor in water, keep the terminals dry. After the check, dry the sensor.

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

      Fig 1: Inspecting Engine Coolant Temperature Sensor
      G06007653Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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