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.
Component Function Check
- CHECK FUEL TANK TEMPERATURE (FTT) SENSORÂ
- Turn ignition switch OFF.
- Disconnect fuel level sensor unit and fuel pump harness connector.
- Remove fuel level sensor unit. Refer to FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY : Removal & Installation .
- Check resistance between fuel level sensor unit and fuel pump terminals by heating with hot water as shown in the figure, below.
Terminals
Condition
Resistance (k Ohm)
4 and 5
Temperature [ deg. C (deg. F)]
20 (68)
2.3-2.7
50 (122)
0.79-0.90
Is the inspection result normal?
YES
GO TO 2.
NO
Proceed to DTC Diagnosis Procedure .
- CHECK INTERMITTENT INCIDENTÂ
Check intermittent incident. Refer to Inspection .
Is the inspection result normal?
YES
INSPECTION END
NO
Proceed to DTC Diagnosis Procedure .
Use the Manual With the Right Hardware
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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.