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Home >> Kia >> 2019 >> Optima EX >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 1.6L (2 Of 6) (Except HEV) >> DTC P0122: Throttle Position Sensor 1 Signal Circuit Low Input >> Component Inspection >> Check TPS performance
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Check TPS performance

  1. Ignition "OFF"
  2. Connect CH A probe to TPS1 signal terminal (Pin No. 6) of ETC Motor connector and CH B probe to TPS2 signal terminal (Pin No. 4) of ETC Motor connector.
  3. Warm up the engine to normal operating temperature.
  4. Measure signal waveform of TPS1 and TPS2 together by stepping on and off the accelerator pedal.

    Specification:  Refer to SIGNAL WAVEFORM & DATA 

G12916150Courtesy of KIA MOTORS AMERICA, INC.
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