Nissan door lock and unlock system working?

Here is how the system is supposed to operate:

• The lock and unlock switch on driver's door trim can lock and unlock all doors.
• With the lock knob on front LH or RH door set to LOCKED, all doors are locked.
• With the door key inserted in the key cylinder on front LH or RH door, turning it to LOCK, will lock all doors; turning it to UNLOCK once unlocks the corresponding door; turning it to UNLOCK again within 5 seconds after the first unlock operation unlocks all of the other doors.

However, if the ignition key is in the ignition key cylinder and one or more of the front doors are open, setting the lock and unlock switch, lock knob, or the door key to LOCK locks the doors once but then immediately unlocks them. (KEY REMINDER DOOR SYSTEM) If any of the following symptoms occur, key reminder door system is malfunctioning.

• With ignition key removed from the ignition key cylinder and all doors closed, operating the lock and unlock switch or lock knob on the front LH or RH door trim unlocks all doors the instant they are locked.
• With ignition key inserted into the ignition key cylinder and front LH or RH door opened, operating the lock and unlock switch or lock knob on the front LH or RH door trim to LOCK does not unlock all doors.

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The default operation is that it unlocks when you remove the key from the ignition for traditional key ignition models (NOT when you turn it off).

Intelligent key models unlock when the engine is shut off (default mode).

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Lockout protection

When the power door lock switch (drive's or
front passenger’s side) is moved to the lock
position with the key in the ignition and any door
open, all doors will lock and then unlock automatically.
This helps to prevent the keys from
being accidently locked inside the vehicle.

VEHICLE SPEED SENSING DOOR LOCK MECHANISM

1) All doors will be locked automatically when
the vehicle speed reaches 15 MPH
(24 km/h).
2) All the doors will unlock automatically when
the ignition switch is turned to the Off position.
3) The lock and unlock mechanism work independently
of each other:
– Both the automatic lock and automatic
unlock feature can be enabled.
– The automatic lock feature can be enabled
while the automatic unlock is disabled.
– The automatic lock feature can be disabled
while the automatic unlock is enabled.
– Both the automatic lock and automatic
unlock feature can be disabled.
How to enable and disable the lock
feature
To activate or deactivate the vehicle speed sensing
door lock mechanism, perform the following
procedure.
1. Close all doors.
2. Turn the ignition switch to the ON position.
3. Within 20 seconds, push and hold the
power door lock switch to the LOCK position
for more than 5 seconds.
4. When activated, the hazard indicator will
flash twice. When deactivated, the hazard
indicator will flash once.
How to enable and disable the unlock
feature
To activate or deactivate the automatic door unlock
mechanism, perform the following procedure:
1. Close all doors.
2. Turn the ignition switch to the ON position.
3. Within 20 seconds, push and hold the
power door lock switch to the UNLOCK
position for more than 5 seconds.
4. When activated, the hazard indicator will
flash twice. When deactivated, the hazard
indicator will flash once.