FixVault

DTC Detection Logic

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

    [Accelerator pedal position (APP) sensor 2 circuit is open or shorted.]

    [Crankshaft position (CKP) sensor (POS) circuit is shorted.]

    (EVAP control system pressure sensor circuit is shorted.)

    (Refrigerant pressure sensor circuit is shorted.)

  • APP sensor 2
  • CKP sensor (POS)
  • 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.