Ignition Key Warning Chime

WARNING: This page is about a different car, the 2003 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

With the key in the ignition key cylinder, power is supplied

through key switch and key lock solenoid (key switch) terminal 4
to BCM terminal 69.

When front door switch (driver side) is open, ground is supplied

to BCM terminal 142
through front door (driver side) switch terminal 1.

Front door switch (driver side) is case ground.

With ignition switch in OFF or ACC position, and the driver's door open, ground is supplied

to warning chime terminal 3
from BCM terminal 12.

The warning chime will sound.