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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 57 (Engine Control System Diagnosis (2 Of 2) (HEV)) >> DTC P2128: Throttle/Pedal Position Sensor/Switch 'E' Circuit-High Input >> Component Inspection

Component Inspection

WARNING: This page is about a different variant/trim than selected.
  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".

      Accelerator Position Output Voltage (V)
      APS1 APS2
      C.T 0.7~0.8 0.29~0.46
      W.O.T 3.85~4.35 1.93~2.18
      Fig 1: Accelerator Position Sensor Output Voltage Graph
      G10606913Courtesy of HYUNDAI MOTOR AMERICA
    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.
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