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Component Inspection

CHECK CRANKSHAFT POSITION SENSOR (POS)-I
1. Turn ignition switch OFF.
2. Loosen the fixing bolt of the sensor.
3. Disconnect crankshaft position sensor (POS) harness connector.
4. Remove the sensor.
5. Visually check the sensor for chipping.
Is the inspection result normal?

YES: GO TO 2.

NO: Replace crankshaft position sensor (POS).

Fig 1: Identifying Crankshaft Position Sensor
Courtesy of NISSAN MOTOR CO., U.S.A.

CHECK CRANKSHAFT POSITION SENSOR (POS)-II

Check resistance between crankshaft position sensor (POS) terminals as per the following.

RESISTANCE SPECIFICATION

Terminals (Polarity)	Resistance [Ω at 25°C (77°F)]
1 (+) - 2 (-)	Except 0 or ∞
1 (+) - 3 (-)
2 (+) - 3 (-)

Is the inspection result normal?

YES: INSPECTION END

NO: Replace crankshaft position sensor (POS).