LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2014 >> Versa Note S, Standard Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostic Codes & Symptom Tests) >> DTC/Circuit Diagnosis >> DTC P2127,: P2128 App Sensor >> DTC Logic >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

DTC No. Trouble diagnosis content 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.)

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

  • Accelerator pedal position sensor (APP sensor 2)
  • Crankshaft position sensor (POS)
  • 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.