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Home >> Hyundai >> 2018 >> Accent Limited >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC P2123-00: Accelerator Position Sensor 1 Signal Circuit High Input >> Wiring Inspection >> Ground Circuit Inspection
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Ground Circuit Inspection

  1. Turn the ignition switch "OFF".
  2. Disconnect APS connector.
  3. Turn the ignition switch "ON" & ENG "OFF".
  4. Measure voltage between APS1 power terminal of APS harness connector and chassis ground. (Measurement "A")
  5. Measure voltage between APS1 power and APS1 ground terminals of APS harness connector. (Measurement "B")

    Specification:  Voltage difference between measurement "A" and "B" is below 200mV

  6. Is the measured voltage within specification?

    YES 

    NO 

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