Remote Function Actuator (RFA) Module
The RFA module is responsible for obtaining the passive key data and passive entry lock/unlock requests. It uses the keyless entry antennas and the Remote Functions Receiver (RFR) module to receive the passive key data. The RFA module receives direct input from the Remote Functions Receiver (RFR) module over a dedicated single circuit network and is hardwired to the keyless entry antennas and lock/unlock sensors. The RFA module communicates the passive key and request data to the BCM over the Medium Speed Controller Area Network (MS-CAN).
If the RFA module is replaced, at least two keys must be programmed to it and a parameter reset with the BCM must be performed to enable PATS. Refer to: REMOTE FUNCTION ACTUATOR (RFA) MODULE .