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Home >> Infiniti >> 2014 >> QX80 RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P0153 >> DTC P0116: ECT Sensor >> Component Inspection
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Component Inspection

  1. CHECK ENGINE COOLANT TEMPERATURE (ECT) SENSOR 
    1. Turn ignition switch OFF.
    2. Disconnect ECT sensor harness connector.
    3. Remove ECT sensor. Refer to "COMPONENT PARTS LOCATION ".
    4. Check resistance between ECT sensor terminals by heating with hot water as shown in the figure below.
      Terminals Condition Resistance (kΩ)
      1 and 2 Temperature [°C (°F)] 20 (68) 2.35 - 2.73
      50 (122) 0.68 - 1.00
      90 (194) 0.236 - 0.260
      Fig 1: Checking Engine Coolant Temperature Sensor
      G09178070Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Replace ECT sensor. Refer to "COMPONENT PARTS LOCATION ".

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