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Home >> Hyundai >> 2021 >> Palisade Calligraphy, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 9) >> DTC P0123-00: Throttle Position Sensor 1 Signal Circuit High Input >> DTC Information And Inspection >> DTC Detecting Condition
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DTC Information And Inspection: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Voltage Monitoring
  1. Poor contact of connector
  2. Short to Battery or Open in TPS1 Signal Circuit
  3. Open in TPS Supply Circuit
  4. Faulty TPS1
Enable Condition Case 1
  • Ignition Switch "ON"
Case 2
  • Ignition Switch "ON"
  • Engine operating state idle:
  • TPS set point is less than 61.098 deg.
  • TPS 1 and TPS 2 ratio failure is detected or TPS 2 failure is detected
Threshold Value Case 1
  • The voltage of TPS 1 is greater than 4.9V
  • Short circuit to battery or open circuit
Case 2
  • The voltage of TPS 1 at engine idle is greater than 3.0V
  • Short circuit to battery or open circuit
Diagnostic Time
  • Continuous
MIL ON Condition
  • 1 Driving Cycle
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