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Home >> Infiniti >> 2005 >> FX35 RWD >> Repair and Diagnosis >> Engine Performance >> Engine Control System - VQ35DE >> DTC P0125: ECT Sensor >> Component Inspection >> Engine Coolant Temperature Sensor
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Engine Coolant Temperature Sensor

  1. Check resistance between engine coolant temperature sensor terminals 1 and 2 as shown in the figure.
    Fig 1: Inspecting Engine Coolant Temperature Sensor
    G02360380Courtesy of NISSAN MOTOR CO., U.S.A.

    < Reference data > 

    ENGINE COOLANT TEMPERATURE SENSOR REFERENCE DATA

    Engine coolant temperature °C (°F) Resistance kohm
    20 (68) 2.1-2.9
    50 (122) 0.68-1.00
    90 (194) 0.236-0.260
  2. If NG, replace engine coolant temperature sensor.
    Fig 2: Resistance Vs Temperature Graph
    G02360381Courtesy of NISSAN MOTOR CO., U.S.A.
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