Monitor Description
WARNING: This page is about a different car, the 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
When the ignition switch is ON or the engine is idling, the pressures detected by the No. 2 turbo pressure sensor and the atmospheric pressure sensor (built into ECM) are compared. If the difference in the pressures detected is higher than threshold value, the ECM determines that the No. 2 turbo pressure sensor or atmospheric pressure sensor may be malfunctioning. In this case, the ECM illuminates the MIL and stores this DTC.