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Home >> Hyundai >> 2017 >> Elantra Sport, Automatic DCT Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 1.6L (3 Of 3) >> DTC P2128-00: Accelerator Position Sensor 2 Signal Circuit-High Input >> Component Inspection
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Component Inspection

  1. IG "OFF" and install a GDS.
  2. Warm up the engine to normal operating temperature.
  3. Monitor "APS" parameter on the "Current Data" with GDS.

    Specification:  "Current Data" will be displayed as follows.

  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.
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