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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 

      TESTER CONNECTION SPECIFIED CONDITION

      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

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

      NOTE: When checking the engine coolant temperature sensor in water, do not allow water to enter the terminals. After checking, dry the engine coolant temperature sensor.
    Fig 1: Identifying Engine Coolant Temperature Sensor
    G05136410Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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