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HOMESERVICE MANUALSINFINITI2019Q70 3.7 LUXE, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 11 (ENGINE CONTROL SYSTEM (5.6L) (DTC/CIRCUIT DIAGNOSIS) (5 OF 9))DTC/CIRCUIT DIAGNOSISDTC P0462, P0463: FUEL LEVEL SENSORDTC LOGICDTC DETECTION LOGIC
2019 Infiniti Q70 3.7 Luxe, AWD

DTC Detection Logic

2019 Infiniti Q70 3.7 Luxe, AWDSECTION DTC Detection Logic
WARNING: This page is about a different variant/trim than selected.
NOTE:
  • If DTC P0462 or P0463 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.
  • If DTC P0462 or P0463 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607.Refer to DTC Logic .

This diagnosis indicates the former, to detect open or short circuit malfunction.

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0462

FUEL LEVL SEN/CIRC

(Fuel level sensor circuit low input)

An excessively low voltage from the sensor is sent to ECM.
  • Harness or connectors

    (The CAN communication line is open or shorted)

  • Harness or connectors

    (The sensor circuit is open or shorted)

  • Combination meter
  • Fuel level sensor

P0463

FUEL LEVL SEN/CIRC

(Fuel level sensor circuit high input)

An excessively high voltage from the sensor is sent to ECM.
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.