RFA System Functions

The RFA system consists of the following major components:
^ A low power signal transmitter
^ A receiver with integrated antenna

The RFA system allows the user to manually or passively lock or unlock the vehicle through a transmitter located on the user's key chain. The RFA transmitter is a battery powered, water resistant, radio frequency signal generator. The RFA transmitter consists of four manual buttons and a passive slider switch. The operation of the manual and passive features is described below:

Manual Features
^ Door UNLOCK Button - with a programmed transmitter in range, unlocks the driver and passenger doors, disarms the theft deterrent system, activates illumination and memory features.
^ Door LOCK Button - with a programmed transmitter in range, locks the driver and passenger doors, arms the theft deterrent system.
^ HATCH Button - with a programmed transmitter in range/trans in park (Auto trans) parking brake applied (manual trans), releases the hatch or trunk, disarms the theft deterrent system.
^ PANIC Button - with a programmed transmitter in range (key out of the ignition), activates the horns when pressed.

When the transmitter manual UNLOCK button is pressed once, the transmitter sends an identification code to the receiver to unlock the driver door. The receiver sends the message to the driver DCM on the serial data line to unlock the driver door. The DCM will then unlock the driver door. The BCM also responds to this message and disarms the theft deterrent system. The BCM will also activate the courtesy lamps if the ambient light is low. If the UNLOCK button is pressed again within 10 seconds, the receiver sends a second message to the passenger DCM to unlock the passenger door. The DCM then unlocks the passenger door.

When the transmitter manual LOCK button is pressed, the transmitter sends an identification code to the receiver to lock both doors. The receiver sends the message to both of the DCMs on the serial data line to lock both doors. Both DCM will then lock both doors. The BCM also responds to this message and arms the theft deterrent system.

When the manual HATCH button is pressed, the transmitter sends an identification code to the receiver to release the hatch or trunk. The receiver sends the message through the serial data line to the BCM. The BCM then disarms the theft deterrent system and activates the hatch or trunk release relay, and the hatch or trunk opens.

When the manual PANIC button is pressed, the transmitter sends an identification code to the receiver to activate the panic mode. The receiver sends the message through the serial data line to the BCM. The BCM activates the horn relay or flashes the lamps (depending on selected personalized options) for 90 seconds or until the panic button is pressed again.

Passive Features
^ Unlocking - programmed transmitter in range/key out of ignition, unlocks the driver and passenger doors, disarms the theft deterrent system, activates illumination and memory features.
^ Locking - all programmed transmitters out of range for 5 seconds (key out of the ignition), locks the driver and passenger doors, and arms the theft deterrent system.
^ PASSIVE ON/OFF switch - turns the passive features ON or OFF.

The passive locking and unlocking system operates the same as the manual system except that the motion sensor in the transmitter causes the transmitter to send an identification code to the receiver without manually pressing the LOCK or UNLOCK button. When a valid transmitter is in range, the receiver will unlock the driver door or both doors depending on selected features. Inserting the ignition key disables the passive locking feature.

The PASSIVE ON/OFF slider switch provides the capability to deactivate the passive unlocking and locking feature. Sliding the switch to OFF turns oil the transmitter motion sensor which deactivates the passive functions. Sliding the switch to ON turns on the sensor which activates the passive functions. The manual button functions are not affected whether the slider switch is in the PASSIVE ON position or the PASSIVE OFF position.