DTC Summary

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P2450-7E	Evaporative Emission System Switching Valve Actuator Stuck On	Either of the following conditions is met when fuel tank pressure is higher than -2 kPa(gauge) [-0.3 psi(gauge)], and less than 3 kPa(gauge) [0.4 psi(gauge)]. Fuel tank pressure change when vacuum introduction for canister is higher than 0.5 kPa [0.07 psi] EVAP pressure when vacuum introduction for canister was complete is higher than (third reference pressure x 0.2)	Fuel vapor-containment valve Connector/wire harness (fuel vapor-containment valve - ECM) ECM	Comes on	DTC stored	SAE Code: P2450 DTC for Mexico Models: Does not apply
P2451-7F	Evaporative Emission System Switching Valve Actuator Stuck Off	Either of the following conditions is met: Fuel tank pressure change when vacuum introduction for canister is less than 0.5 kPa [0.07 psi] EVAP pressure change when fuel vapor-containment valve is open is less than 0.9 kPa [0.1 psi]	Fuel vapor-containment valve Connector/wire harness (fuel vapor-containment valve - ECM) ECM	Comes on	DTC stored	SAE Code: P2451 DTC for Mexico Models: Does not apply

DTC No.	Monitoring Item	Detection Timing	Detection Logic	SAE Code
P2450-7E	Fuel vapor-containment valve stuck open	EVAP monitoring (power switch off)	2 trip	P2450
P2451-7F	Fuel vapor-containment valve stuck close	EVAP monitoring (power switch off)	2 trip	P2451