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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 38 (Engine Control System Diagnosis - 1.6L (3 Of 3) (Except HEV)) >> DTC P2123: Throttle/Pedal Position Sensor/Switch 'D' Circuit High Input >> Wiring Inspection >> Ground Circuit Inspection

Ground Circuit Inspection

WARNING: This page is about a different variant/trim than selected.
  1. IG "OFF".
  2. Disconnect APS connector.
  3. IG "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 200 mV.

  6. Is the measured voltage within specification?

    YES 

    NO 

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