Remote Keyless Entry (RKE)
The RFA module interprets radio frequency signals from the IA key transmitters. The RFA module requests the illuminated entry feature to turn the interior lamps on when an unlock command is received. If a lock command is received, the illuminated entry feature turns off.
The IA key transmitter supplies a signal to the TPM module when any button is pressed. The TPM module interprets the information from the IA key and then sends a signal to the RFA module over a dedicated single circuit network. The RFA module then supplies voltage to the appropriate door lock actuator(s) to lock or unlock the doors or open/close the liftgate. The IA key can also be used to activate the panic alarm.
The RKE feature also causes the RFA module to send an MS-CAN message to the Driver Seat Module (DSM) to activate all memory features to the positions associated with the IA key being used.