Remote Keyless Entry Systems: Description
Remote Keyless Entry (RKE) system is controlled by Remote Function Actuation (RFA) system. Transmitter allows remote control of various vehicle functions without physical contact with vehicle. RFA functions include lock and unlock of both doors, turning panic alarm on or off, arming or disarming alarm, opening rear compartment lid, turning on vehicle's parking lights (approach, courtesy) and activating memory features (with memory option only).
RFA system consists of a transmitter located in drivers key fob, a Remote Control Door Lock Receiver (RCDLR) with integral antenna is located in left rear quarter panel. See Fig 1 . The RFA system does not directly control system functions. When RCDLR receives a transmitter command, a message is sent through the serial data line to applicable system module.
RFA system should be used as a supplement to vehicle's conventionally operated lock/unlock system. RFA system could be disabled due to radio frequency interference or a low transmitter battery. Vehicle can always be accessed with a door key. RCDLR receives and transmits information to other vehicle systems to perform specific functions.
RFA is also used for Tire Pressure Monitoring (TPM). RCDLR receives signals from TPM sensors, then sends a message on serial data line to Instrument Panel Cluster (IPC). IPC then displays tire pressure information for each tire. For more information on TPM system, see ANALOG INSTRUMENT PANELS - CORVETTE article.