Back Door Entry Lock and Unlock Functions do not Operate: Description
WARNING: This page is about a different car, the 2010 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
Neither the entry nor unlock functions operate when: 1) nothing is output from the door electrical key oscillator (back door), 2) the smart key system is disabled through customization, or 3) the entire power door lock control system is malfunctioning.