Module, Keyless Ignition Node (Kin): Operation

WARNING: This page is about a different car, the 2021 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

The Keyless Go system with the Keyless Ignition Node (KIN) replaces the conventional key and ignition switch with a momentary button press and a wireless Finger Operated Button Integrated Key (FOBIK). When the operator presses the Start/Stop button, the Radio Frequency Hub (RF-Hub) wirelessly interrogates the FOBIK. If the FOBIK is recognized by the RF-Hub, the system allows the ignition state of the KIN to be changed by the operator between LOCK, ACCESSORY and RUN states. This causes changes in the ignition status signals on the vehicle's Controller Area Network data buses and hardwired outputs controlled by the starting system master. As far as the vehicle's ignition system is concerned, Keyless Go control is indiscernible from legacy conventional control using a rotational switch and key.

When the KIN button is pressed and the brake pedal depressed, the RF-Hub is signaled with a "request to start" message.
The RF-Hub then uses strategically placed Low Frequency (LF) antennas in the vehicle to communicate with the FOBIK to confirm that the FOBIK is located inside the vehicle.
FOBIK authentication is complete once the FOBIK is validated by the RF-Hub.
When successfully authenticated, the RF-Hub sends the ignition position to the Body Control Module (BCM). The BCM then carries out the requested command.

NOTE:

In the event that the FOBIK is inoperative due to a low battery, a back up method can be used to operate the ignition. A low voltage signal is sent through the KIN's internal antenna that activates the chip internal to the key. Place the nose (side opposite of the emergency key) of the FOBIK against the Start/Stop Button and push to operate the ignition.

When the vehicle is running and is placed in PARK, pushing the KIN's Start/Stop Button will shut the engine off. In case of an emergency, pressing the Start/Stop Button continuously for 2 seconds or repeatedly (one hit every 30- 500ms) will shut the engine off at vehicle speed greater than 8 km/h (5 mph).