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Home >> Kia >> 2017 >> Forte5 SX, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 1.6L T (3 Of 3) >> DTC P2122: Throttle/Pedal Position Sensor/Switch D Circuit Low Input >> Component Inspection

Component Inspection

■ Check APS 

  1. Connect GDS to DLC (Data Link Cable).
  2. Warm up the engine to normal operating temperature.
  3. Check the "Current Data  " about related DTC with GDS.
    Fig 1: Scantool Display - Engine Idle After Warm Up & At Acceleration
    G12151143Courtesy of KIA MOTORS AMERICA, INC.
    1. Engine Idle after Warm Up
    2. At Acceleration
  4. Is the measured signal waveform O.K?

    YES 

    • Substitute with a known - good ECM and check for proper operation. If the problem is corrected, replace ECM and go to "Verification of Vehicle Repair " procedure.

    NO 

    • Substitute with a known-good APS and check for proper operation. If the problem is corrected, replace APS and then go to "Verification of Vehicle Repair " procedure.