Theory Of Operation

WARNING: This page is about a different car, the 2022 Chrysler Voyager and 2022 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.

The Radio Frequency Hub (RF HUB) uses LF Antennas and the internal RKE antenna or the Remote Start Antenna (RSA) (if equipped) to locate the FOBIK either inside or outside of the vehicle for Keyless Go (KG) and Passive Entry (PE) functions. Once an input is activated to the RF HUB, (door handle, trunk or liftgate handle or Keyless Ignition node (KIN), the RF HUB looks for the FOBIK on the LF Antennas and then the FOBIK will send a signal to the RKE internal antenna or RSA with an encrypted message for the RF HUB. The encrypted message will validate that the programmed FOBIK is correct for the vehicle and then carry out the Keyless Go or Passive Entry requests. The RF HUB monitors the LF Antennas, Antenna circuits for shorts or opens. The RF HUB will also monitor the RSA for open circuit concerns.