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Home >> Infiniti >> 2013 >> M56 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1087 To P2542 >> DTC P2539, P2541, P2542: Low Fuel Pressure Sensor >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P2539 LOW FUEL PRES SEN (Low fuel pressure sensor circuit low input and high input) Signal voltage from the low fuel pressure sensor remains at more than 4.84 V/less than 0.3 V for 5 seconds or more.
  • Harness or connectors (Low fuel pressure sensor circuit is open or shorted.)

    (Power steering pressure sensor circuit is open or shorted.)

    (EOP sensor circuit is open or shorted.)

    (FRP sensor circuit is open or shorted.)

  • Low fuel pressure sensor
  • Power steering pressure sensor
  • EOP sensor
  • FRP sensor
P2541 LOW FUEL PRES SEN (Low fuel pressure sensor circuit low input) Signal voltage from the low fuel pressure sensor remains at less than 0.49 V for 5 seconds or more.
P2542 LOW FUEL PRES SEN (Low fuel pressure sensor circuit high input) Signal voltage from the low fuel pressure sensor remains at more than 4.1 V for 5 seconds or more.
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