Component Inspection

1. Turn ignition switch OFF.
2. Disconnect "fuel level sensor unit and fuel pump" harness connector.
3. Remove fuel level sensor unit.
4. Check resistance between "fuel level sensor unit and fuel pump" terminals by heating with hot water as shown in the figure.
   TERMINALS RESISTANCE REFERENCE
   
   

   Terminals	Condition		Resistance
   4 and 5	Temperature °C (°F)	20 (68)	2.3 - 2.7 kΩ
   		50 (122)	0.79 - 0.90 kΩ

Is the inspection result normal? 

YES: INSPECTION END

NO: Replace "fuel level sensor unit and fuel pump".

Fig 1: Checking Resistance Between "Fuel Level Sensor Unit And Fuel Pump" Terminals

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