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Home >> Infiniti >> 2019 >> QX60 Pure, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (4 Of 17) >> DTC/Circuit Diagnosis >> DTC P0125: ECT Sensor >> Component Inspection (Engine Coolant Temperature Sensor)
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Component Inspection (Engine Coolant Temperature Sensor)

  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 resistance between engine coolant temperature sensor terminals by heating with hot water as shown below.
      G08855388Courtesy of NISSAN NORTH AMERICA, INC.

      EOT sensor

      Condition

      Resistance

      Terminal

      1

      2

      Temperature [deg.C (deg.F)]

      20 (68)

      2.10 - 2.90 kOhm

      50 (122)

      0.68 - 1.00 kOhm

      90 (194)

      0.236 - 0.260 kOhm

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace engine coolant temperature sensor. Refer to Exploded View .