Seat Belt Buckle Switch Inspection
WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect negative battery cable. Disconnect appropriate seat belt buckle electrical connector. Verify continuity as indicated in illustration. See Fig 1 . If continuity is not as indicated, replace seat belt buckle switch. See SEAT BELT BUCKLE SWITCH under REMOVAL & INSTALLATION.