Engine Coolant Temperature Sensor

Check resistance between engine coolant temperature sensor terminals 1 and 2 as shown in the figure.

Fig 1: Checking Sensor Resistance While Monitoring Temperature

Courtesy of NISSAN MOTOR CO., U.S.A.

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If NG, replace engine coolant temperature sensor.

Fig 2: Sensor Resistance VS Temperature Graph

Courtesy of NISSAN MOTOR CO., U.S.A.