Check Fuel Level Sensor Unit And Pump (Main) Harness
WARNING: This page is about a different car, the 2003 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
Check continuity between fuel level sensor unit and fuel pump (main) connector terminal 5 and 7.
Continuity should exist.
Fig 1: Checking Fuel Level Sensor Unit And Pump (Main) Harness