Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Overall Function Check
- CHECK FUEL TANK TEMPERATURE (FTT) SENSOR
- Turn ignition switch OFF.
- Disconnect fuel level sensor unit and fuel pump harness connector.
- Remove fuel level sensor unit. Refer to , "REMOVAL AND INSTALLATION ".
- Check resistance between fuel level sensor unit and fuel pump terminals by heating with hot water as shown in the figure.
Terminals Condition Resistance (kΩ) 4 and 5 Temperature [°C (°F)] 20 (68) 2.3 - 2.7 50 (122) 0.79 - 0.90 Courtesy of NISSAN NORTH AMERICA, INC.
Is the inspection result normal?
YES: GO TO 2.
NO: Proceed to "DIAGNOSIS PROCEDURE ".
- CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to "DIAGNOSIS PROCEDURE ".
Is the inspection result normal?
YES: INSPECTION END
NO: Proceed to "DIAGNOSIS PROCEDURE ".
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.