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Home >> Kia >> 2019 >> Optima S >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 2.4L (2 Of 6) (Except HEV) >> DTC P0122-00: Throttle Position Sensor 1 Signal Circuit Low Input >> Wiring Inspection >> Power Circuit Inspection

Power Circuit Inspection

  1. Ignition "OFF".
  2. Refer to "ETC (ELECTRONIC THROTTLE CONTROL) SYSTEM " and disconnect Throttle Body connector.
  3. Ignition "ON".
  4. Measure voltage between Pin No. 2 (TPS Supply) terminal of Throttle Body Sensor harness connector and chassis ground.

    Specification:  Approx. 5 V

  5. Is the measured value within specification?

    YES 

    NO 

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