Seat Belt Warning Chime

WARNING: This page is about a different car, the 2006 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.

When the ignition switch is turned ON with the driver seat belt unfastened (seat belt buckle switch LH unfastened), warning chime will sound for approximately 6 seconds.

Ground is supplied

to combination meter terminal 24
through seat belt buckle switch LH terminal 1.

Seat belt buckle switch LH terminal 2 is grounded through body grounds B7 and B19.

The combination meter sends seat belt buckle switch LH unfastened signal to BCM via CAN communication line.

BCM receives seat belt buckle switch LH unfastened signal from combination meter via CAN communication line, and sends seat belt warning signal to the combination meter via CAN communication line. When the combination meter receives the seat belt warning signal, it sounds the warning chime. The BCM controls the (6 second) duration of the seat belt warning chime.