Parking Brake Switch Circuit [03/2019 - 01/2023]: Description
WARNING: This page is about a different car, the 2024 Lexus RC F, 2023 Lexus RC F, 2022 Lexus RC F, 2021 Lexus RC F, and 2020 Lexus RC F. However, it is still accessible from the selected car via links, so may be relevant.
The main body ECU (multiplex network body ECU) detects the condition of the parking brake switch assembly.