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Home >> Kia >> 2019 >> Optima EX >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (5 Of 6) (PHEV) >> DTC P2127-00: Accelerator Position Sensor 2 Signal Circuit Low Input >> Wiring Inspection >> APS 2 Circuit Inspection >> Signal Circuit Inspection
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Signal Circuit Inspection

  1. Ignition "OFF"
  2. Disconnect Battery (-) terminal.
  3. Refer to ACCELERATOR POSITION SENSOR (APS) , ENGINE CONTROL MODULE (ECM) "service information" and disconnect Accel Pedal Position Sensor and PCM connector.
  4. Measure resistance between Pin No. 6 (Signal) terminal of Accel Pedal Position Sensor harness connector and Pin No. 64 (Signal) terminal of ECM/PCM harness connector.

    Specification:  Approx. below 1Ω

  5. Is measured value within specification?

    YES 

    NO