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Home >> Nissan-Datsun >> 2006 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1148 To P2A00 (Qr25DE) >> DTC P2127, P2128 App Sensor >> On Board Diagnosis Logic >> Notes

On Board Diagnosis Logic: Notes

These self-diagnoses have the one trip detection logic. 

DTC DETECTING CONDITION & POSSIBLE CAUSE

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

    (The APP sensor 2 circuit is open or shorted.)

    (TP sensor circuit is shorted.)

  • Accelerator pedal position sensor

    (Accelerator pedal position 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.
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