DTC Summary

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

EVAPORATIVE EMISSION PRESSURE SWITCHING VALVE STUCK

DTC No.	Monitoring Items	Malfunction Detection Conditions	Trouble Areas	Detection Timing	Detection Logic
P2419	Vent valve stuck closed	P043E, P043F, P2401, P2402 and P2419 are present when one of the following conditions is met during key-off EVAP monitor: EVAP pressure just after reference pressure measurement greater than -1 kPa-g (755 mmHg-a) Reference pressure less than -4.85 kPa-g (726 mmHg-a) Reference pressure greater than -1 kPa-g (755 mmHg-a) Reference pressure is not saturated Reference pressure difference between first and second is 0.7 kPa-g (5 mmHgg) or more HINT: These values are typical	Canister pump module (reference orifice, leak detection pump, vent valve) Connector/wire harness (canister pump module - ECM) ECM	Ignition switch OFF	2 trip
P2420	Vent valve stuck open (vent)	The following condition is met during key-off EVAP monitor: EVAP pressure change when vent valve is closed (ON) less than 0.3 kPa-g (2.25 mmHg-g)	Canister pump module (reference orifice, leak detection pump, vent valve) Connector/wire harness (canister pump module - ECM) ECM	Ignition switch OFF	2 trip