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Home >> Suzuki >> 2009 >> Equator RMZ-4 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (VQ40DE) - (3 Of 5) >> 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 AND 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.) (The TP sensor circuit 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.
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