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Nissan Sentra B18 (2020-2025) Service Manual: Engine Coolant Temperature Sensor

Component Inspection

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.

      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.

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