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Home >> Kia >> 2012 >> Optima Hybrid >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) - HEV >> DTC P2128: Throttle Pedal Position Sensor Switch E Circuit-High Input >> General Information >> Signal Waveform & Data
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Signal Waveform & Data

  1. IG key ON.
  2. Check sensor data as below.
    Fig 1: Display - Acceleration Pedal Position Sensors Characteristic Waveform
    G08306289Courtesy of KIA MOTORS AMERICA, INC.
  3. Data Analysis
    Condition GDS Sensor Data
    APS 1 APS 2
    IG Key "ON & Engine "OFF" Output voltages of APS1 and APS2 are in proportion to accelerating. APS2 output voltage is half of APS1 output voltage.
    Release a pedal fully 0.58~0.93V 0.29~0.47
    Depress a pedal fully 3.85~4.35V 1.93~2.18V
  4. Is data in accordance with "Data Anaysis"?

    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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