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Home >> Infiniti >> 2008 >> EX35 Base, RWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS P0451 To P1212 >> P0462, P0463 Fuel Level Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

NOTE:
  • If DTC P0462 or P0463 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC U1000, U1001. Refer to "DTC LOGIC ".
  • 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 DETECTING CONDITION AND POSSIBLE CAUSE REFERENCE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0462 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)
  • Unified meter and A/C amp.
  • Fuel level sensor
P0463 Fuel level sensor circuit high input An excessively high voltage from the sensor is sent to ECM.
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