Diagnostic Test

1. Turn ignition switch OFF.
2. Disconnect fuel level sensor unit and fuel pump harness connector.
3. Remove fuel level sensor unit. Refer to REMOVAL AND INSTALLATION .
4. Check resistance between fuel level sensor unit and fuel pump terminals by heating with hot water as shown in the figure below.
   Fig 1: Checking Fuel Tank Temperature Sensor

   Courtesy of NISSAN NORTH AMERICA, INC.

   Fuel level sensor unit and fuel pump		Condition		Resistance (kΩ)
   +	-
   Terminal
   4	5	Temperature [°C (°F)]	20 (68)	2.3 - 2.7
   			50 (122)	0.79 - 0.90

Is the inspection result normal?

YES 

Check intermittent incident. Refer to INTERMITTENT INCIDENT .

NO 

Proceed to DIAGNOSIS PROCEDURE .