4. Check Fuel Pump Power Supply And Ground Circuit For Open And Short

1. Turn ignition switch OFF.
2. Disconnect "fuel level sensor unit and fuel pump" harness connector.
   Fig 1: Identifying Fuel Level Sensor Unit And Fuel Pump Harness Connector

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Disconnect dropping resistor harness connector.
   Fig 2: Identifying Dropping Resistor

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check harness continuity between

   fuel pump relay terminal 5 and fuel pump terminal 3,

   fuel pump terminal 1 and dropping resistor terminal 2,

   dropping resistor terminal 1 and ground.

   Refer to WIRING DIAGRAM .

   Continuity should exist. 

5. Also check harness for short to ground and short to power.

OK or NG 

1. OK: GO TO 6. CHECK FUEL PUMP RELAY OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT .
2. NG: GO TO 5.