Engine Coolant Temperature Sensor

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

Fig 1: Checking Resistance Between Engine Coolant Temperature Sensor Terminals
Courtesy of NISSAN MOTOR CO., U.S.A.

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Fig 2: Voltage Chart
Courtesy of NISSAN MOTOR CO., U.S.A.
If NG, replace engine coolant temperature sensor.

Fig 3: Resistance Vs Temperature Chart
Courtesy of NISSAN MOTOR CO., U.S.A.