Check Fuel Level Sensor Unit And Fuel Pump (Main)

Check the resistance between terminals 2 and 5.

Fig 1: Testing Fuel Pump (Main) Circuit Resistance
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Identifying Fuel Level Sensor Specifications
Courtesy of NISSAN MOTOR CO., U.S.A.
If the results of check is NG, check the fuel level sensor unit and fuel pump (main) harness.