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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 "REMOVAL AND INSTALLATION ".
  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
1 and 2 Temperature [°C (°F)] 20 (68) 2.10 - 2.90 kΩ
50 (122) 0.68 - 1.00 kΩ
90 (194) 0.236 - 0.260 kΩ

Is the inspection result normal? 

YES: INSPECTION END

NO: Replace engine coolant temperature sensor. Refer to "REMOVAL AND INSTALLATION ".

Fig 1: Checking Engine Coolant Temperature Sensor
G04886485Courtesy of NISSAN MOTOR CO., U.S.A.
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