Keyless Entry Transmitter: Description and Operation

REMOTE TRANSMITTER







The remote transmitter initiates the following electronic system functions:
- unlocks the driver door
- unlocks all doors
- locks all doors
- activates/deactivates the panic alarm
- commands the interior lamps on (when unlocking) and off (when locking)
- sounds the horn once when LOCK is pressed twice within three seconds, and doors are closed

The remote transmitter has a minimum operating range of 10 m (33 ft).

The remote transmitters can be programmed using a diagnostic tool or by using the ignition lock cylinder method.

Remote Transmitter Lock/Unlock Control - Unlock
The remote transmitter feature provides lock/unlock functions independently of key position, vehicle speed, or transmission position. The remote transmitter feature provides a 2-step process for unlocking the doors. Upon receipt of the first requests for unlocking the doors, the remote control feature requests the vehicle security module to unlock the driver door only. If another unlock request is received within 3 seconds of the first, the remote transmitter feature will request that all doors be unlocked.

Remote Transmitter Lock/Unlock Control - Lock
The remote transmitter feature requests that all the doors be locked when the door lock control switch LOCK button is pressed. On any press of the LOCK button with all doors closed the remote transmitter feature requests 1 flash of the parking lamps. If any door is ajar, no flash will occur. As soon as the last door is closed, the vehicle provides the 1 flash of the parking lamps. If 2 presses of the LOCK button are received within 3 seconds the horn chirps once, and the parking lamps flash twice to indicate that all the doors are closed and locked. If any door is ajar when the second lock request is received within 3 seconds of the first, the remote transmitter feature requests the horn chirp twice without flashing the parking lamps to indicate it locked all the doors but 1 or more doors are ajar. When the key is in the ON or START position, no parking lamp flashes or horn chirp confirmations occur.

Panic Alarm
The panic alarm feature provides audible and visual alarms which are evident from the exterior of the vehicle. The panic alarm feature requests that the parking lamps are flashed and horn sounds until deactivation. The flashing of the outputs occurs simultaneously. Activation of the panic alarm is accomplished by pressing the PANIC button on a remote transmitter whenever the key is in the OFF or ACC positions. At all other times this feature is disabled. Deactivation of an active PANIC alarm is accomplished by: 1) a second press of the remote transmitter PANIC button, 2) the key is switched out of the OFF or ACC position or 3) a period of 2 minutes and 45 seconds has elapsed since the initial activation.