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Home >> Infiniti >> 2021 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 5) >> Engine (ECM) >> DTC P0463: Fuel Level Sensor >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

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 Index .

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.
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