DTC Summary

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
P0455	Evaporative Emission Control System Leak Detected (Gross Leak)	Leak detection pump creates negative pressure (vacuum) in EVAP system and EVAP system pressure is measured. Reference pressure is measured at start and end of leak check. If stabilized pressure is higher than [second reference pressure x 0.2], ECM determines that EVAP system has a large leak.	Fuel 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	Comes on	DTC stored
P0456	Evaporative Emission Control System Leak Detected (Very Small Leak)	Leak detection pump creates negative pressure (vacuum) in EVAP system and EVAP system pressure is measured. Reference pressure measured at start and end of leak check. If stabilized pressure is higher than second reference pressure, ECM determines that EVAP system has a small leak.	Fuel 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	Comes on	DTC stored

DTC No.	Monitoring Item	Detection Timing	Detection Logic
P0455	EVAP gross leak	While engine switch off	2 trip
P0456	EVAP small leak	While engine switch off	2 trip