Selective Unlock Function for Passenger Side
WARNING: This page is about a different car, the 2006 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.
When an LOCK signal is sent from request switch (passenger side), all doors will be locked. When an UNLOCK signal is sent from request switch (passenger side) once, Intelligent Key unit turns on passenger side select unlock relay. And then passenger's door will be unlocked. If an UNLOCK signal is sent from request switch (passenger side) again within 5 seconds, all other door will be unlocked.