2. Check Crankshaft Position (Ckp) Sensor (Pos) Power Supply Circuit

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

Disconnect crankshaft position (CKP) sensor (POS) harness connector.

Fig 1: Disconnect Crankshaft Position (CKP) Sensor (POS) Harness Connector
Courtesy of NISSAN MOTOR CO., U.S.A.
Turn ignition switch ON.
Check voltage between CKP sensor (POS) terminal 3 and ground with CONSULT-II or tester.
1. Voltage: Battery voltage
Also check harness for short to ground and short to power.

OK or NG

OK: GO TO 4 .
NG: GO TO 3.

Fig 2: Check Crankshaft Position (CKP) Sensor (POS) Power Supply Circuit

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