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Home >> Kia >> 2017 >> Forte S >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 2.0L MPI Nu (3 Of 3) >> DTC P2127: Accelerator Position Sensor 2 Signal Circuit Low Input >> Component Inspection

Component Inspection

Check APS 

  1. Connect KDS/GDS to DLC (Data Link Cable).
  2. Warm up the Engine to normal operating temperature.
  3. Check the "Current Data" about related DTC with KDS/GDS.

    Specification:  Refer to Fig 1, Fig 2

    Fig 1: Screen Display - Engine Idle After Warm Up
    G12149922Courtesy of KIA MOTORS AMERICA, INC.
    Fig 2: Screen Display - Acceleration
    G12149923Courtesy of KIA MOTORS AMERICA, INC.
  4. Are the parameters displayed correctly?

    YES 

    NO 

    • Carefully re-do this troubleshooting guide steps.
    • If the diagnostics have been performed correctly with no failure found, replace the APS and then go to "Verification of Vehicle Repair " procedure.