Driver Side Door Entry Lock and Unlock Functions do not Operate: Description
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
When the driver door entry lock and unlock functions do not operate, one of the following may be malfunctioning: 1) power door lock control system, 2) door electrical key oscillator (driver side), or 3) certification ECU (smart key ECU assembly)