Seat Occupancy Sensor Pad
WARNING: This page is about a different car, the 2001 BMW M5, 2001 BMW 540i, 2001 BMW 530i, and 2001 BMW 525i. However, it is still accessible from the selected car via links, so may be relevant.
Front passenger seat cushion is equipped with a foil contact sensor. If front passenger seat is occupied, seat occupancy detector will send a varying analog signal to the SBE. This signal varies in direct proportion to the weight or movement of seat occupant.