FixVault

On Board Diagnosis Logic: Notes

These self-diagnoses have the one trip detection logic  .

ON BOARD DIAGNOSIS LOGIC

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2127
2127
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.)

    (TP sensor circuit is shorted.)

  • Accelerator pedal position sensor (APP sensor 2)
  • Electric throttle control actuator (TP sensor 1 and 2)
P2128
2128
Accelerator pedal position sensor 2 circuit high input An excessively high voltage from the APP sensor 2 is sent to ECM.