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.
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HOMESERVICE MANUALSINFINITI2019Q70 3.7 LUXE, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 10 (ENGINE CONTROL SYSTEM (5.6L) (DTC/CIRCUIT DIAGNOSIS) (3 OF 9))DTC/CIRCUIT DIAGNOSISDTC P0181: FTT SENSORCOMPONENT INSPECTION (FUEL TANK TEMPERATURE SENSOR)
2019 Infiniti Q70 3.7 Luxe, AWD
Component Inspection (Fuel Tank Temperature Sensor)
2019 Infiniti Q70 3.7 Luxe, AWDSECTION Component Inspection (Fuel Tank Temperature Sensor)
WARNING: This page is about a different variant/trim than selected.
- CHECK FUEL TANK TEMPERATURE SENSOR
- Turn ignition switch OFF.
- Disconnect "fuel level sensor unit and fuel pump (main)" harness connector.
- Remove fuel level sensor unit. Refer to Exploded View .
- Check resistance between "fuel level sensor unit and fuel pump (main)" terminals by heating with hot water as shown in the figure.
Terminals
Condition
Resistance (kOhm)
7 and 8
Temperature [ deg.C (deg.F)]
20 (68)
2.3 - 2.7
50 (122)
0.79 - 0.90
Is the inspection result normal?
YES
INSPECTION END
NO
Replace "fuel level sensor unit and fuel pump (main)". Refer to Exploded View .
RENDER: 1.0x
NO RELATED
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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.