Pattern A

WARNING: This page is about a different car, the 2006 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

With all doors closed (including trunk lid), if the key is used to lock doors, smart entrance control unit terminal 41 receives a ground signal:

from terminal L of the front door key cylinder switch LH
to terminal E of the front door key cylinder switch LH
through body grounds M28 and M54.

If this signal, or lock signal from keyfob is received by the smart entrance control unit, the vehicle security system will activate automatically.

NOTE: Vehicle security system can be set even though all doors are not locked.