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Home >> Hyundai >> 2012 >> Elantra Limited >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> DTC P2127: Throttle/Pedal Position Sensor/Switch E Circuit Low Input >> Inspection/Repair >> Component Inspection
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Component Inspection

  1. Accelerator Pedal Rod Inspection
    1. Verify that the accelerator pedal operate freely without binding between full closed and wide open position by operating the accelerator pedal.
    2. Check for poor carpet fit under the accelerator controls pedal.
    3. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure. If OK, go to next step as below.
  2. APS1 Inspection
    1. IG KEY 'ON'.
    2. Connect GDS and monitor the "APS2" parameter on the data list.

      Specification:  Refer to "SIGNAL WAVEFORM&DATA " in the "General Information".

      TEST CONDITION REFERENCE

      Test Condition APS2
      Release a pedal fully Approx. 0.29~0.38
      Depress a pedal fully Approx. 1.93~2.18V
  3. Is data in accordance with "Data Analysis"?

    YES 

    Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    Substitute with a known-good component and check for proper operation. If the problem is corrected, replace component and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.