Signal Path

WARNING: This page is about a different car, the 2018 Infiniti Q60. However, it is still accessible from the selected car via links, so may be relevant.

For internal

BCM judges whether or not warning the driver is required, according to push switch signal from push-button ignition switch, door switch signal from front door switch (driver side), and ID verification result.
BCM, when it judges that warning to the driver is required, transmits buzzer output signal to combination meter via CAN communication.
When combination meter receives buzzer output signal, warning buzzer operates.

For external

BCM judges whether or not warning to the driver is required, according to door switch signal from front door switch (driver side) while OFF position warning (for internal) is operated.
When BCM judges that warning the driver is required, Intelligent Key warning buzzer operates.