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Engine Coolant Temperature Sensor: Inspection

  1. INSPECT E.F.I. ENGINE COOLANT TEMPERATURE SENSOR 
    1. Resistance inspection.
      1. Using an ohmmeter, measure the resistance between each terminals.

        Resistance: 

        Approx. 20°C (68°F): 2.32 to 2.59 kΩ 

        Approx. 80°C (176°F): 0.310 to 0.326 kΩ 

        NOTE: In case of checking the water temperature sensor in the water, be careful not to allow water to go into the terminals, and after checking, dry the sensor.
      Fig 1: Inspecting E.F.I. Engine Coolant Temperature Sensor
      G04087493Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002