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Home › Hyundai › 2012 › Genesis 4.6 › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (3 Of 3) - 4.6L › DTC P2123: Accelerator Position Sensor 1 Signal Circuit High Input › Scantool Diagnostics › Monitor Scantool Data

Monitor Scantool Data

  1. Connect scantool to Data Link Connector (DLC).
  2. Warm up the engine to normal operating temperature.
  3. Monitor the "APS" parameters on the scantool.
    Fig 1: Display - Normal Data Of APS1 And APS2 At Idle
    G08822138Courtesy of HYUNDAI MOTOR AMERICA
    Fig 2: Display - Normal Data Of APS1 And APS2 At Acceleration With Load
    G08822139Courtesy of HYUNDAI MOTOR AMERICA

    Normal data of APS1 & APS2 at idle. Refer to Fig 1.

    Normal data of APS1 & APS2 at acceleration with load. Refer to Fig 2.

  4. Is parameter displayed "Present fault"?

    YES 

    Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    Go to "TERMINAL AND CONNECTOR INSPECTION " procedure.

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