When Monitored
WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Any time the Start/Stop Button is pressed, the Radio Frequency Hub (RF Hub) will check the (D122) Security K Line Communication circuit and the (G20) Ignition Switch Sense circuit. It samples these circuits every 10 ms. while the button is pressed.