DTC Summary

DTC SUMMARY

DTC No.	Monitoring Items	Malfunction Detection Conditions	Trouble Areas	Detection Timings	Detection Logic
P0441	Purge VSV (vacuum switching valve) stuck open	Leak detection pump creates negative pressure (vacuum) in EVAP system and EVAP system pressure measured. 0.02 inch leak pressure standard measured at start and at end of leak check If stabilized pressure higher than [second 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 Canister pump module Leakage from EVAP system	While engine switch 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. 0.02 inch leak pressure standard measured at start and at end of leak check If pressure does not return to near atmospheric pressure, ECM determines that purge VSV stuck closed	Purge VSV Connector/wire harness (Purge VSV - ECM) ECM Canister pump module Leakage from EVAP system	While engine switch off	2 trip
P0441	Purge flow	While engine running, following conditions are met: Negative pressure not created in EVAP system when purge VSV turned ON (open) EVAP system pressure change less than 0.5 kPa (3.75 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