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Home >> Hyundai >> 2013 >> Veloster Base, Standard Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) - Non-Turbo >> DTC P2123: Throttle Pedal Position Sensor Switch 'D' Circuit High Input >> General Information >> DTC Detecting Condition
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General Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Signal check, high
  1. Poor connection
  2. Short to battery in signal circuit
  3. Open in ground circuit
  4. Faulty APS
  5. Faulty ECM
Enable Conditions
  • Ignition "ON"
Threshold Value
  • APS1 > 4.8V
Diagnostic Time
  • 0.2 sec
MIL ON Condition
  • Immediately
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