Function Actuator

The Remote Function Actuation (RFA) system performs the following functions:
^ Transmitter remote control of various vehicle systems without physical contact of any switches on the vehicle
- Lock and unlock the both doors
- Turn the panic alarm ON or OFF
- Arm or disarm the theft deterrent system
- Hatch or trunk release
- Vehicle lamp control (approach, courtesy)
- Activate memory features (with memory option only)
^ Tire Pressure Monitoring (TPM) system functions.

The RFA system consists of a transmitter located on the operator's key fob, and a receiver (with an integral antenna) located over the LR wheelhouse. The receiver is capable of recognizing three transmitter codes. The RFA system does not directly control its functions, but relies on other systems in order to perform the transmitter's commands. The receiver receives and transmits various information from the following systems in order to perform specific functions.

^ The Body Control Module (BCM) - in order to provide Theft Deterrent, hatch release, horn, and vehicle illumination control features.

^ The Door Control Modules (DCM) - in order to provide all door lock and memory mirror functions.

^ The Seat Control Module (SCM) - in order to provide memory seat features.

^ The Instrument Panel Cluster (IPC) - in order to provide RFA system programming, display and vehicle personalization functions.

When the RFA system receives a command from a transmitter, a message is sent via the serial data line to the system module capable of performing the needed function.

The RFA system is intended to be used as a supplementary to the vehicles conventionally operated lock/unlock system. It is not intended to replace, but should be used in conjunction with the door lock key. The system could disable due to radio frequency interference or a low transmitter battery. Therefore, always maintain vehicle access with a door key