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Home >> Nissan-Datsun >> 2009 >> Maxima SV >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1225 To P2A03 >> P2127, P2128 App Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC DETECTION CONDITION CHART

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.
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