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Home >> Kia >> 2012 >> Optima Hybrid >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 2) - HEV >> DTC P0222: Throttle Pedal Position Sensor Switch B Circuit Low Input >> General Information >> DTC Detecting Condition
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General Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Short to Ground or Open circuit
  1. Open in power supply harness or signal harness
  2. Short to ground in power supply or signal harness
  3. Poor connection or damaged harness
  4. Faulty TPS2
Case1 Enable Conditions
  • Ignition "ON"
Threshold Value
  • TPS2 < 0.1V
Case2 Enable Conditions
  • Ignition "ON"
  • In idle status
  • Target throttle angle < 58%
  • MAF Limphome detected or TPS1 failure detected
Threshold Value
  • TPS2 at idle < 2.0V
Diagnostic Time
  • 0.05 sec.
MIL On Condition
  • 1 driving cycle
Limp-Home
  • Forced limited power mode: When the DTC is set, the PCM reduces engine torque by 25% of normal value.
  • The PCM uses TPS1 signal to monitor the controlled opening angle of the throttle valve.
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