Theory Of Operation - Keyless Ignition Node (Kin)

WARNING: This page is about a different car, the 2024 RAM ProMaster EV. However, it is still accessible from the selected car via links, so may be relevant.

The KIN replaces the conventional key and ignition switch with a momentary button press and a wireless electronic Key Fob. When the operator presses the KIN ignition button, the Key Fob is interrogated by the Radio Frequency Hub (RF-Hub). If the Key Fob is recognized as belonging to the vehicle and in the vehicle interior, the system allows the ignition state of the vehicle to be changed by the vehicle operator between the LOCK , ACCESSORY , RUN , and START ignition states. This causes changes in the ignition status signals on the vehicles Controller Area Network-Chassis (CAN-C) data bus and hardwired outputs controlled by the Body Control Module (BCM) which is the starting system master. Keyless GO control is indiscernible from legacy conventional control using a rotational switch and key.

The K-line and the Engine Start/Stop Button hardwire signals are used in conjunction to determine the Engine Start/Stop button states.