DTC Summary

DTC No.	Monitoring Item	Malfunction Detection Condition	Trouble Area	Detection Timing	Detection Logic
P2420	Vent Valve Stuck Open (Vent)	Following Condition Met During Key-Off Evap Monitor: Evap Pressure Change When Vent Valve Closed (On) Less Than 0.3 Kpa(Gauge) [2.25 Mmhg(Gauge)]	Canister Pump Module (Reference Orifice, Leak Detection Pump, Vent Valve) Connector/Wire Harness (Canister Pump Module - ECM) Canister (Filter Inside Canister Clogged) No. 1 Canister (Filter Inside Canister Clogged) ECM	While Power Switch Off	2 Trip

Hint:

The Vent Valve Is Built Into The Canister Pump Module.