Back Door Entry Unlock Function does not Operate [08/2019 - ]: Description
WARNING: This page is about a different car, the 2022 Toyota Sequoia, 2021 Toyota Sequoia, and 2020 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
If the entry unlock function does not operate for the back door only, but the entry lock function operates, the request code is being transmitted properly from the back door. In this case, there may be a problem related to the back door outside handle (connection between the back door outside handle and certification ECU (smart key ECU assembly)) or unlock switch (connection between the tail gate control switch assembly and main body ECU (multiplex network body ECU)).