Back Door Entry Lock and Unlock Functions do 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.
When the back door entry lock and unlock functions do not operate, one of the following may be malfunctioning: 1) power door lock control system, or 2) back door electrical key antenna (for outer), or 3) main body ECU (cowl side junction block LH), or 4) certification ECU (smart key ECU assembly).