Crankshaft Position Sensor (Pos)

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

Loosen the fixing bolt of the sensor.
Disconnect crankshaft position sensor (POS) harness connector.

Fig 1: Identifying Crankshaft Position Sensor (POS)
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove the sensor.
Visually check the sensor for chipping.
Check resistance as shown in the figure.

Fig 2: Resistance Reference Data Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Checking Crankshaft Position Sensor Resistance
Courtesy of NISSAN MOTOR CO., U.S.A.