Technical Description (Comment)
WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
The lock/unlock signal of the keyless operation key is sent to ETACS-ECU via KOS-ECU. Also, when ETACS receives signals from the all the door switches, ETACS-ECU judges them to activate the keyless entry function.