Ignition Key Warning Chime

WARNING: This page is about a different car, the 2002 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.

With ignition switch in OFF or ACC position, and the driver's door open, the warning chime will sound. Power is supplied

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

Ground is supplied

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

Front door switch (driver side) is case ground.