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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 2406 (Engine Control System - DTCS P0603 To P2A03 (VK56DE)) >> DTC P2122, P2123: App Sensor >> On Board Diagnosis Logic >> Notes

On Board Diagnosis Logic: Notes

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

These self-diagnoses have the one trip detection logic  .

NOTE: If DTC P2122 or P2123 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to "DTC CONFIRMATION PROCEDURE ".
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2122
2122
Accelerator pedal position sensor 1 circuit low input An excessively low voltage from the APP sensor 1 is sent to ECM.
  • Harness or connectors (The APP sensor 1 circuit is open or shorted.)
  • Accelerator pedal position sensor (Accelerator pedal position sensor 1)
P2123
2123
Accelerator pedal position sensor 1 circuit high input An excessively high voltage from the APP sensor 1 is sent to ECM.