Revolution Sensor
WARNING: This page is about a different car, the 2002 Infiniti QX4, 2001 Nissan Pathfinder, and 2001 Infiniti QX4. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect revolution sensor connector. Measure resistance between revolution sensor harness connector terminals No. 1 and 2. See Fig 1. Resistance should be 500-650 ohms. If resistance is not as specified, replace sensor.