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Home >> Nissan-Datsun >> 2011 >> Quest LE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P0152 >> DTC P0116: ECT Sensor >> Component Function Check
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Component Function Check

  1. CHECK ENGINE COOLANT TEMPERATURE (ECT) SENSOR
    1. Turn ignition switch OFF.
    2. Disconnect ECT sensor harness connector.
    3. Remove ECT sensor. Refer to "EXPLODED VIEW ".
    4. Check resistance between ECT sensor terminals by heating with hot water as shown in the figure.
      TERMINALS RESISTANCE REFERENCE CHART

      Terminals Condition Resistance (kΩ)
      1 and 2 Temperature [°C (°F)] 20 (68) 2.1 - 2.9
      50 (122) 0.68 - 1.00
      90 (194) 0.236 - 0.260

      Is the inspection result normal? 

      YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

      NO: Proceed to "DIAGNOSIS PROCEDURE ".

      Fig 1: Checking Resistance Between ECT Sensor Terminals By Heating With Hot Water
      G04886485Courtesy of NISSAN MOTOR CO., U.S.A.
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