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Home >> Toyota >> 2011 >> Highlander Hybrid Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 70 (Engine Control System (2GR-FE) (Diagnostic Codes (P00351-P1603) & Circuit Tests)) >> SFI System >> DTC P0455: Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak) >> DTC Summary

DTC Summary

WARNING: This page is about a different variant/trim than selected.
DTCs Monitoring Item Malfunction Detection Condition Trouble Area Detection Timing Detection Logic
P0455 EVAP gross leak Leak detection pump creates negative pressure (vacuum) in EVAP system and EVAP system pressure is measured. 0.02 inch leak pressure standard is measured at start and end of leak check.
If stabilized pressure is higher than [second 0.02 inch leak pressure standard x 0.2], ECM determines that EVAP system has a large leak.
  • Fuel tank cap (loose)
  • Leakage from EVAP line (Canister - Fuel tank)
  • Leakage from EVAP line (Purge VSV - Canister)
  • Leakage from canister pump module
  • Leakage from fuel tank
  • Leakage from canister
 While ignition switch off 2 trip
P0456 EVAP small leak Leak detection pump creates negative pressure (vacuum) in EVAP system and EVAP system pressure is measured. 0.02 inch leak pressure standard measured at start and end of leak check.
If stabilized pressure is higher than second 0.02 inch leak pressure standard, ECM determines that EVAP system has a small leak.		 While ignition switch off 2 trip
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