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Home >> Hyundai >> 2012 >> Elantra GLS, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> DTC P2123: Throttle/Pedal Position Sensor/Switch D Circuit High Input >> Inspection/Repair >> W/Harness Inspection >> Signal Circuit Inspection
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Signal Circuit Inspection

  1. IG KEY OFF.
  2. Disconnect APS harness connector.
  3. IG KEY ON.
  4. Measure voltage between APS1 signal terminal of APS harness connector and chassis ground.

    Specification:  Approx. 0V

    Fig 1: Measuring Voltage Between APS1 Signal Terminal Of APS Connector And Chassis Ground.
    G07272805Courtesy of HYUNDAI MOTOR CO.
  5. Is voltage within specification?

    YES 

    • Go to next procedure.

    NO 

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