Keyless Entry: Description and Operation

DESCRIPTION
The Remote Keyless Entry (RKE) module controls the following features:
1. Door lock/unlock feature.
2. Liftgate, unlock feature.
3. Automatic door lock feature.
4. Arm, disarm, activate and deactivate anti-theft system, if equipped.
5. Activate, deactivate panic alarm.
6. Illuminated entry feature.
7. Battery saver feature.

FUNCTIONS

Door Lock/Unlock Feature
The doors may be locked or unlocked using the door lock switches, Remote/Keyless Entry Switch Assembly or the transmitter. When the door lock switch is held toward lock, ground is applied to the 119 (PK/Y) circuit. The RKE module then applies voltage to the 117 (PK/BK) circuit, causing the door lock motors to lock the doors. When the door lock switch is held toward unlock, ground is applied to the RKE module via the 120 (PK/LG) circuit. The RKE module then applies voltage to the 118 (PK/O) and 163 (R/O) circuits, causing the door lock motors to unlock the doors.

Pressing the transmitter unlock button causes the RKE module to apply voltage to the driver's door lock motor via circuit 163 (R/O). Pressing the transmitter unlock button a second time within 5 seconds causes the RKE module to apply voltage to circuits 118 (PK/O) and 163 (R/O), causing the door lock motors to unlock the passenger door.

Automatic Door Lock (Autolock) Feature
The Autolock feature allows the RKE module to automatically lock the doors when the following conditions are met:
1. Autolock feature is activated.
2. Driver's seat is occupied.
3. All doors are closed.
4. Ignition switch is in "RUN".
5. Gear selector passes through "REVERSE".

Also, after the above Autolock operation, all the doors will be relocked whenever a passenger door is opened then closed. The doors would not be relocked if either the ignition is "OFF" at the time or the driver's seat switch is open for 3 seconds or more while the door is open.

Theft Deterrent Control
The RKE module can arm, disarm, activate and deactivate the anti-theft system. The RKE module is tied to the theft deterrent wiring so that when operation of the door locks is requested, the anti-theft module interprets these signals and behaves just as if the system was being controlled manually.

Panic Alarm Feature
When the "PANIC" button on the RKE transmitter is pressed, the RKE module applies a pulsing ground signal to the 6 (Y/LG) circuit and pulsing voltage signal to the 218 (W/P) circuit. This forces the horns to beep and exterior lamps to flash. The RKE module will continue this action for a maximum of 3 minutes, or until "PANIC" is pressed again, or the Ignition is turned on.

Illuminated Entry Feature
The illuminated entry feature may be activated by lifting a door handle or by pressing any transmitter key. When either of these is performed, the RKE module applies battery voltage to the interior lamps and keyhole illumination lamps via the 53 (BK/LB) circuit for 25 seconds, provided the ignition switch is "OFF". Turning the ignition switch "ON" will turn the interior lamps immediately off.

Battery Saver Feature
The Battery Saver function provides a 45 minute time-out of the interior lamps and other courtesy lamps after the ignition is switched "OFF". This feature will prevent battery drainage if doors are left open or if either the courtesy lamps are left on or their switches are bad. The 45-minute timer can be restarted either by pulling a front door handle, using the transmitter, or opening any door. Turning the ignition "ON" prevents the Battery Saver from Timing out, providing continuous power to the courtesy lamp circuits.

Transmitter Programming
Before any of the REMOTE features will operate, the RKE module must be programmed to accept signals from the transmitters. The RKE module may be programmed to accept signals from up to four transmitters. The following steps must be performed in order to program or reprogram the RKE module to respond to the selected transmitters.
1. Put the ignition switch in "RUN" or "ACC" and momentarily jumper the two program connector terminals. The system will respond by locking and then unlocking all doors.
2. Press any button on the transmitter. All doors will lock and then unlock to verify transmitter signal acceptance.
3. Repeat step 2 in order to program the RKE module to accept up to four transmitter signals.
4. Turn the ignition switch to "OFF". All doors will then lock and unlock.
5. Operate a button on each transmitter to verify that the system has been programmed successfully.