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Home >> Kia >> 2004 >> Amanti >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> Diagnosis >> DTC P2128: Acceleration Position Sensor 2 Circuit High Input >> Inspection/Repair >> Component Inspection >> Check APS

Check APS

  1. Ignition "OFF"
  2. Disconnect APS connector.
  3. Measure resistance between terminal "1" and "2" of APS connector.
    1. Specification: Approx. 3.5 ~ 6.5 kΩ at 20 °C (68 °F)
      Fig 1: Measuring Resistance Between Terminal 1 And 2 Of APS Connector
      G07330807
  4. Monitor the signal output of APS2 during stepping on the accelerator pedal slowly.
    1. Specification
      1. Approx. 0.3 ~ 1.0V (when not stepping on the accelerator pedal)
      2. Approx. 4.0 ~ 5.5V (when stepping on the accelerator pedal fully)
  5. Is the resistance or the signal voltage within specifications?

    YES

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

    NO

    1. Check APS for contamination, deterioration, or damage. 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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