FixVault

DTC Detection Logic

DTC DETECTION CONDITION AND POSSIBLE CAUSES REFERENCE TABLE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2127 Accelerator pedal position (APP) 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.

    Crankshaft position. CKP) sensor circuit is shorted.

    Camshaft position (CMP) sensor (bank 2) circuit is shorted.

    Exhaust valve timing (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.

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