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Home >> Kia >> 2019 >> Optima EX >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 1.6L (5 Of 6) (Except HEV) >> DTC P2122: Throttle/Pedal Position Sensor/Switch D Circuit Low Input >> Wiring Inspection >> Signal Circuit Inspection

Signal Circuit Inspection

  1. Ignition "OFF" and disconnect APS connector.
  2. Ignition "ON"
  3. Measure voltage between Pin No. 3 (Signal) terminal of APS harness connector and chassis ground.

    Specification:  Approx. 0V

  4. Ignition "OFF" & Disconnect ECM connector.
  5. Measure resistance between Pin No. 3 (Signal) terminal APS harness connector and chassis ground.

    Specification:  ∞

  6. Is the measured Value within specification?

    YES 

    NO 

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