Rear Door LH Entry Lock Function does not Operate [06/2018 - ]: Description
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.
If the entry lock function does not operate for the rear door LH only, but the entry unlock function operates, the request code is being transmitted properly from the rear door LH. In this case, there may be a problem related to the lock sensor (connection between the certification ECU (smart key ECU assembly) and rear door outside handle assembly LH).