Engine Coolant Temperature Sensor

Check resistance as shown in the figure.

Fig 1: Checking Resistance
Courtesy of NISSAN MOTOR CO., U.S.A.

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Fig 2: Resistance Specification
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Temperature And Resistance Graph
Courtesy of NISSAN MOTOR CO., U.S.A.
If NG, replace engine coolant temperature sensor.