Crankshaft Position Sensor (Pos)

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. 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.
Remove the sensor.
Visually check the sensor for chipping.

Fig 1: Identifying Crankshaft Position Sensor (Pos) Harness Connector
Courtesy of NISSAN NORTH AMERICA, INC.

Check resistance as shown in the figure.

RESISTANCE SPECIFICATION CHART

Terminal No. (Polarity)	Resistance Ω [at 25°C (77°F)]
1 (+) - 2 (-)	Except 0 or ∞
1 (+) - 3 (-)
2 (+) - 3 (-)

Fig 2: Checking Resistance Of Crankshaft Position Sensor

Courtesy of NISSAN NORTH AMERICA, INC.