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Home >> Infiniti >> 2010 >> M45 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 188 (Engine Control System - DTCS P1217 To P2A03) >> DTC P2122, P2123: App Sensor >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2010 Infiniti M35. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If DTC P2122 or P2123 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to "DTC LOGIC ".
DTC DETECTION LOGIC CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2122 Accelerator pedal position (APP) sensor 1 circuit low input An excessively low voltage from the APP sensor 1 is sent to ECM.
  • Harness or connectors (APP sensor 1 circuit is open or shorted.)
  • Accelerator pedal position sensor (APP sensor 1)
P2123 Accelerator pedal position (APP) sensor 1 circuit high input An excessively high voltage from the APP sensor 1 is sent to ECM.
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