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Inspection [07/2015 - ]: Procedure

  1. INSPECT ENGINE COOLANT TEMPERATURE SENSOR 
    1. Resistance Inspection
      1. Disconnect the negative battery cable.

        Refer to REMOVAL [07/2015 - ]

      2. Drain the engine coolant.

        Refer to REPLACEMENT [07/2015 - ]

      3. Remove the ECT sensor No. 1.

        Refer to REMOVAL [07/2015 - ] 

      4. Place the ECT sensor No. 1 in water with a thermometer, and heat the water gradually.
        GTY483045Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a ECT Sensor No. 1
        GTY494016Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Resistance (Kilohms)
        *b ECT (°C (°F))
      5. Measure the resistance between ECT sensor No. 1 terminals 1 and 2.

        If not as specified, replace the ECT sensor No. 1.

        Refer to REMOVAL [07/2015 - ] 

        SPECIFICATION (REFERENCE)

        ECT (°C (°F)) Resistance (Kilohms)
        20 (68) Approx. 2.45
        80 (176) Approx. 0.318
  2. INSPECT ENGINE COOLANT TEMPERATURE SENSOR NO. 2 
    1. Resistance Inspection
      1. Disconnect the negative battery cable.

        Refer to REMOVAL [07/2015 - ]

      2. Drain the engine coolant.

        Refer to REPLACEMENT [07/2015 - ]

      3. Remove the ECT sensor No. 2.

        Refer to REMOVAL [07/2015 - ] 

      4. Place the ECT sensor No. 2 in water with a thermometer, and heat the water gradually.
        GTY483045Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a ECT Sensor No. 2
        GTY494016Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Resistance (Kilohms)
        *b ECT (°C (°F))
      5. Measure the resistance between ECT sensor No. 2 terminals 1 and 2.

        If not as specified, replace the ECT sensor No. 2.

        Refer to REMOVAL [07/2015 - ] 

        SPECIFICATION (REFERENCE)

        ECT (°C (°F)) Resistance (Kilohms)
        20 (68) Approx. 2.45
        80 (176) Approx. 0.318
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