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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 125 (Engine Control System Diagnosis (1 Of 2) (HEV)) >> DTC P0456: Evaporative Emission System-Leak Detected (Very Small Leak) >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
Case DTC Strategy
  • Monitoring switch closing time during overnight soaking
  1. Fuel cap
  2. Hoses/Fuel inlet pipe
  3. Canister
  4. Fuel Tank
Enable Conditions
  • Switch closed time
Threshold Value
  • Switch closed time during engine stop(key off) 10 min
Diagnostic Time
  • 30 sec
Mil On Condition
  • 2 driving cycle
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