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Home >> Kia >> 2020 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 6) (PHEV) >> DTC P0452-00: Evaporative Emission System-Pressure Sensor/Switch Low Input >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible cause
DTC Strategy
  • Electrical monitoring
  1. Poor Connector Connection
  2. Short to Ground in Fuel Tank Pressure Sensor Signal Circuit
  3. Faulty Fuel Tank Pressure Sensor
Enable Conditions
  • Battery voltage lower than 11V and higher than 16V
  • No relevant DTC present
Threshold value
  • Fuel Tank Pressure Signal lower than 0.25V
Diagnosis Time
  • Continuous
MIL ON Condition
  • 2 Driving cycles
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