DTC P25B4-73: Turbocharger/Supercharger Wastegate "A" Actuator Stuck Closed [08/2015 - 09/2022]: Description

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2024 Lexus IS 300, 2023 Lexus IS 300, 2022 Lexus IS 300, 2021 Lexus IS 300, and 2020 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P0243-13.

Refer to DESCRIPTION , or refer to DTC P0243-13: Turbocharger/Supercharger Wastegate Solenoid "A" Circuit Open [09/2018 - 09/2022]

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P25B4-73	Turbocharger/Supercharger Wastegate "A" Actuator Stuck Closed	The boost pressure does not drop despite control to open the waste gate valve (2 trip detection logic).	Waste gate valve Waste gate valve actuator with bracket assembly Vacuum regulating valve assembly No. 2 turbo pressure sensor Mass air flow meter sub-assembly Semiconductor pwr integration ECU Wire harness or connector ECM	Comes on	DTC stored	SAE Code: P25B4