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Temperature Switch: Inspection: Inspection

  1. INSPECT ENGINE COOLANT TEMPERATURE SENSOR 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 1: Measuring Resistance Of ECT Sensor
      GTY333770Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Condition Specified Condition
      Approximately 20°C (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 engine coolant temperature sensor.

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

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