Remote Functions Receiver (RFR) Module
WARNING: This page is about a different car, the 2013 Ford Fiesta. However, it is still accessible from the selected car via links, so may be relevant.
The Remote Functions Receiver (RFR) module is hardwired to the RFA module and is a receiving antenna that receives the high frequency signals from an IA key. It also receives the signals from an Remote Keyless Entry (RKE) command.