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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) (PHEV) >> DTC P0123-00: Throttle Pedal Position Sensor Switch 'A' Circuit High Input >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Voltage Monitoring
  1. Poor Connector Connection
  2. Short to Battery or Open in TPS1 Signal Circuit
  3. Open in TPS Supply Circuit
  4. Faulty TPS1
Enable Conditions
  • Ignition "ON"
Threshold Value
  • TPS1 signal voltage higher than 4.9V
  • TPS1 signal voltage at idle higher than 3.0V
Diagnostic Time
  • Continuous
MIL ON Condition
  • 1 Driving Cycle
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