Luggage Compartment Door Entry Unlock Function does not Operate when Key is Outside Luggage Compartment: Description
WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
When the entry luggage compartment open function does not operate, one of the following may be the cause. 1) luggage compartment door opener switch malfunction, 2) power trunk lid control system malfunction, 3) communication malfunction between electrical key antenna and electrical key transmitter, 4) power trunk lid control ECU (luggage closer motor) receives the luggage compartment door opener switch ON signal, but is unable to send the signal to the certification ECU through CAN communication, or 5) certification ECU malfunction.