Technical Description (Comment)
WARNING: This page is about a different car, the 2008 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
The reciever antenna assembly receives the lock/unlock signals from the transmitter, and sends them to the WCM, and further to the ETACS-ECU. Then, the ETACS-ECU receives the signals of the key reminder switch and all door switches, then activates the keyless entry system.