Luggage Compartment Door Open Switch Circuit: Description
WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
If the certification ECU detects that the luggage compartment door opener outer switch is pressed when the driver is carrying the key or when the key is locked in the luggage compartment door, the certification ECU sends a luggage compartment door open motor drive request signal to the body ECU.