Inspect Seat Belt Warning Occupant Detection Sensor Continuity
WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
Passenger's seat only:
Check that continuity exists between the terminals 1 and 2 when pressing the sensing part.
Fig 1: Testing Seat Belt Warning Occupant Detection Sensor