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Home >> Nissan-Datsun >> 2012 >> 370Z Base, 2D Convertible, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 Through P0128 >> DTC P0125: 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 below.
      Terminals Condition Resistance (kΩ)
      1 and 2 Temperature [°C (°F)] 20 (68) 2.10 - 2.90
      50 (122) 0.68 - 1.00
      90 (194) 0.236 - 0.260
      Fig 1: Checking Engine Coolant Temperature Sensor By Heating With Hot Water
      G08102652Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Replace engine coolant temperature sensor.

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