DTC Summary

WARNING: This page is about a different car, the 2009 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

DTC No.	Monitoring Item	DTC Detection Condition	Trouble Area	Detection Timing	Detection Logic
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 2.3 mmHg	Canister pump module (0.02 inch orifice, leak detection pump, vent valve) Connector / wire harness (Canister pump module - ECM) ECM	Engine switch off	2 trips

DTC No.

Monitoring Item

DTC Detection Condition

Trouble Area

Detection Timing

Detection Logic

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 2.3 mmHg

Canister pump module (0.02 inch orifice, leak detection pump, vent valve)

Connector / wire harness (Canister pump module - ECM)

Engine switch off

2 trips