DTC Summary

DTC SUMMARY

DTCs	Monitoring Item	Malfunction Condition	Trouble Area	Detection Timing	Detection Period
P0441	Purge VSV (Vacuum Switching Valve) stuck open	Vacuum pump creates negative pressure (vacuum) in EVAP system and EVAP system pressure is measured. If stabilized pressure higher than [0.02 inch leak pressure standard x 0.2], ECM determines that purge VSV stuck open	Purge VSV Connector/wire harness (Purge VSV - ECM) ECM Pump module Leakage from EVAP system	While ignition switch is OFF	2 trip
P0441	Purge VSV stuck closed	After EVAP leak check performed, purge VSV turned ON (open), and atmospheric air introduced into EVAP system. If pressure does not return to near atmospheric pressure, ECM determines that purge valve stuck closed	Purge VSV Connector/wire harness (Purge VSV - ECM) ECM Pump module Leakage from EVAP system	While ignition switch is OFF	2 trip
P0441	Purge flow	While engine running, following conditions successively met: Negative pressure not created in EVAP system when purge VSV turned ON open) EVAP system pressure change less than 1 kPa (7.5 mmHg) when vent valve turned ON (closed) Atmospheric pressure change before and after purge flow monitor less than 0.1 kPa 0.75 mmHg)	Purge VSV Connector/wire harness Purge VSV - ECM) Leakage from EVAP line (Purge VSV - Intake manifold) ECM	While engine running	2 trip