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 Inspection
- 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, fuel filter and fuel pump assembly". Refer to Removal and Installation .
- Check the resistance between fuel level sensor unit and fuel pump terminals by heating with hot water as shown in the figure, below.
Fuel level sensor unit and fuel pump
Condition
Resistance
Terminal
5
6
Temperature [ deg. C (deg. F)]
20 (68)
2.3 - 2.7 kOhms
50 (122)
0.79 - 0.90 kOhms
Is the inspection result normal?
YES
INSPECTION END
NO
Replace fuel level sensor unit, fuel filter and fuel pump assembly (with fuel tank temperature sensor). Refer to Removal and Installation .
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.
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