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Home >> Infiniti >> 2011 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - G37 Convertible - DTC U0101 Through P0153 >> DTC P0116: ECT 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 resistance between engine coolant temperature sensor terminals by heating with hot water as shown in the figure.
      RESISTANCE REFERENCE CHART

      Terminals Condition Resistance (kΩ)
      1 and 2 Temperature [°C (°F)] 20 (68) 2.37 - 2.63
      50 (122) 0.68 - 1.00
      90 (194) 0.236 - 0.260

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Replace engine coolant temperature sensor. Refer to "EXPLODED VIEW ".

      Fig 1: Checking Resistance Between Engine Coolant Temperature Sensor Terminals By Heating With Hot Water
      G07159708Courtesy of NISSAN MOTOR CO., U.S.A.
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