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Home >> Kia >> 2012 >> Soul ! >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) - 2.0L >> DTC P0123: Throttle/Pedal Position Sensor/Switch A Circuit High Input >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Short to Battery or Open circuit
  1. Open in ground circuit
  2. Short to battery in signal circuit
  3. Poor connection or damaged harness
  4. Faulty TPS1
Case1 Enable Conditions
  • Ignition "ON"
Threshold Value
  • TPS > 4.9V
Case1 Enable Conditions
  • Ignition "ON"
  • In idle status
  • Target throttle angle < 58%
  • MAF Limp home detected or TPS2 failure detected
Threshold Value
  • TPS1 > 3.0V
Diagnostic Time
  • 0.05 sec.
Mil On Condition
  • 1 Drive Cycles
Limp-Home
  • Forced limited power mode: When the DTC is set, the PCM reduces engine torque by 25% of normal value.
  • The PCM uses TPS2 signal to monitor the controlled opening angle of the throttle valve.
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