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Home >> Kia >> 2020 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 6) (PHEV) >> DTC P0123-00: Throttle/Pedal Position Sensor/Switch 'A' Circuit High Input >> Component Inspection >> Throttle Position Sensor Inspection >> Notes
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Throttle Position Sensor Inspection: Notes

  1. Ignition "OFF"
  2. Connect KDS to Data Link Connector(DLC).
  3. Ignition "ON" & Engine "ON"
  4. Warm up the engine to normal operating temperature.
  5. Monitor following parameters in "Current Data" with KDS.

    Specification:  Check the changes in the Throttle Position Sensor 1, 2 during acceleration

    G13368479Courtesy of KIA MOTORS AMERICA, INC.
  6. Is measured value within specification?

    YES 

    • Carefully re-do this troubleshooting guide steps.
    • If the diagnostics have been performed correctly with no failure found, replace the ECM/PCM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
    CAUTION: When replacing the ECM/PCM, the vehicle equipped with the immobilizer must be performed procedure as below.
    [In the case of installing used ECM/PCM]
    1) Perform "ECM Neutral mode" procedure with KDS. (Refer to "IMMOBILIZER " in BE group)
    2) After finishing "ECM Neutral mode", perform "Key teaching" procedure with KDS. (Refer to "IMMOBILIZER " in BE group)
    [In the case of installing new ECM/PCM]
    Perform "Key teaching" procedure with KDS. (Refer to "IMMOBILIZER " in BE group)
    CAUTION: When replacing the ECM/PCM, the vehicle equipped with the smart key system (Button start) must be performed procedure as below.
    [In the case of installing used ECM/PCM]
    1. Perform "ECM/PCM Neutral mode" procedure with KDS. (Refer to "SMART KEY " in BE group)
    2. After finishing "ECM/PCM Neutral mode", insert the key (or press the start button) and turn it to the IGN ON and OFF position. Then the PCM learns the smart key information automatically.

    [In the case of installing new ECM/PCM]
    Insert the key (or press the start button) and turn it to the IGN ON and OFF position. Then the ECM/PCM learns the smart key information automatically.

    NO 

    • Carefully re-do this troubleshooting guide steps.
    • If no problems were found with the circuits or connectors, Throttle Body and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
CAUTION:
  • Install the component with the specified torques.
  • Note that internal damage may occur when the component is dropped or mis-treated.
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