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Home >> Infiniti >> 2024 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (4 Of 4) >> Engine (ECM) >> DTC P2128: App Sensor >> DTC Description
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DTC Description

DTC DETECTION LOGIC 

DTC No. Trouble diagnosis name
(Trouble diagnosis content)
DTC detecting condition Possible cause
P2127 APP SEN 2/CIRC
(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 sensor 2 circuit is open or shorted.)

  • Accelerator pedal position sensor (APP sensor 2)
  • Sensor power supply 2
P2128 APP SEN 2/CIRC
(Accelerator pedal position sensor 2 circuit high input)
An excessively high voltage from the APP sensor 2 is sent to ECM.