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Home >> Nissan-Datsun >> 2012 >> Quest SL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P0159 >> 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 below.
      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
      Fig 1: Checking Engine Coolant Temperature Sensor
      G08171504Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

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

      NO: Proceed to "DIAGNOSIS PROCEDURE ".

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