All Door Lock

^ The BCM locks all doors when pressing lock once on either door lock switch with all doors closed.
^ The BCM delays door locking when the drivers door is open with the key removed from the ignition switch, thus enabling the last door closed locking feature. A first press of lock on a door lock switch initiates this feature. This causes the BCM to sound the chime 3 times, indicating last door closed locking is active. Seven seconds after all doors are closed, the BCM locks all doors. Pressing lock twice on a door lock switch overrides the last door closed locking feature, thus the BCM locks all doors immediately with a door still open.
^ The BCM does not lock the doors when the driver's door is open and the key is fully inserted in the ignition switch, enabling the lockout prevention feature.

Pressing lock on either door lock switch grounds a feed signal to the BCM through CKT 682. When the BCM deems appropriate to lock the doors (based on last door closed locking and lockout prevention features), the BCM activates the lock relay which then applies voltage from circuit 195 to circuit 295 for 315-385 ms, energizing all door actuators and locking all vehicle doors.