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Home >> Nissan-Datsun >> 2023 >> Sentra SV >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (2 Of 2) >> Component/Circuit Diagnosis >> Engine Coolant Temperature Sensor >> Component Inspection
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Component Inspection

  1. CHECK ENGINE COOLANT TEMPERATURE SENSOR 
      1. Turn ignition switch OFF.
      2. Disconnect engine coolant temperature sensor harness connector.
      3. Remove engine coolant temperature sensor. Refer to Exploded View .
      4. Check the resistance between engine coolant temperature sensor terminals by heating with hot water as shown in the figure, below.
        GNSDB35294Courtesy of NISSAN
        ECT sensor Condition Resistance
        Terminal
        1 2 Temperature [°C (°F)] 20 (68) 2.37 - 2.63 kΩ
        50 (122) 0.68 - 1.00 kΩ
        90 (194) 0.236 - 0.260 kΩ

    Is the inspection result normal?

    YES>>

    INSPECTION END

    NO>>

    Replace engine coolant temperature sensor. Refer to Exploded View .