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Home >> Infiniti >> 2011 >> G25 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - DTCS P1211 To P2A03 - G25 Sedan >> DTC P2127, P2128: App Sensor >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

DTC DETECTION LOGIC CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2127 Accelerator pedal position sensor 2 circuit low input An excessively low voltage from the APP sensor 2 is sent to ECM.
  • Harness or connectors (APP sensor 2 circuit is open or shorted.)

    [CKP sensor (POS) circuit is shorted.]

    [CMP sensor (PHASE) (bank 2) circuit is shorted.]

    [EVT control position sensor (bank 2) circuit is shorted.]

    (Battery current sensor circuit is shorted.)

    (EVAP control system pressure sensor circuit is shorted.)

    (Refrigerant pressure sensor circuit is shorted.)

    Accelerator pedal position sensor (APP sensor 2)

    Crankshaft position sensor (POS)

    Camshaft position sensor (PHASE) (bank 2)

  • Exhaust valve timing control position sensor (bank 2)
  • Battery current sensor
  • EVAP control system pressure sensor
  • Refrigerant pressure sensor
P2128 Accelerator pedal position sensor 2 circuit high input An excessively high voltage from the APP sensor 2 is sent to ECM.
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