2. Check Fuel Tank Temperature Sensor Power Supply Circuit

1. Disconnect "fuel level sensor unit and fuel pump" harness connector.
2. Turn ignition switch ON.
3. Check voltage between "fuel level sensor unit and fuel pump" terminal 4 and ground with CONSULT-II or tester.
   1. Voltage: Approximately 5V 

Fig 1: Checking Voltage Between "Fuel Level Sensor Unit & Fuel Pump" Terminal 4 & Ground

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

OK or NG 

OK: GO TO 4. CHECK FUEL TANK TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT .

NG: GO TO 3.