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Home >> Hyundai >> 2017 >> Sonata Plug-In Hybrid >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (PHEV) (3 Of 3) >> DTC P2123: Accelerator Position Sensor 1 Signal Circuit High Input >> DTC Inspection >> GDS data analysis

GDS data analysis

  1. Connect GDS and select "DTC Analysis" mode
  2. Warm up the engine.
  3. Monitor the parameters related to DTC on the "Current Data" menu of the GDS below while press and depress gas pedal.
    Fig 1: Screen Display - GDS Sensor Data
    G11638907Courtesy of HYUNDAI MOTOR AMERICA
  4. Data Analysis
    Condition GDS Sensor Data
    APS 1 APS 2
    IG Key "ON& Engine "OFF" Output voltage s of APS1 and APS2 are in proportion to accelerating. APS2 output voltage is half of APS1 output voltage.
    Release a pedal fully 0.58~0.93V 0.29~0.47
    Depress a pedal fully 3.85~4.35V 1.93~2.18V
  5. Is data in accordance with "Data Analysis"?

    YES 

    • Fault is intermittent caused by poor contact in the sensor's and/or PCM's connector. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair " procedure.

    NO 

    • Go to next step.
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