Back Door Entry Lock Function does not Operate: Description
WARNING: This page is about a different car, the 2013 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
If the back door entry lock function does not operate but the back door open function operates, the communication line between the vehicle and electrical key transmitter is normal. As a faulty part, the entry lock switch circuit (certification ECU (smart key ECU assembly) → back door opener switch) can be considered.