9-3 (9440) L4-2.0L Turbo (2.0 HOT) (2003)
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Seat Belt Buckle Switch: Description and Operation
Belt Contact (70D/70P)
Main function
The purpose of the sensor is to determine if the seat-belt buckle is fastened or unfastened. Using information from the seat-belt buckle sensors and seat
position sensors, the airbag control module determines how the belt tensioner detonation circuits should be activated and activates the seatbelt warning in
the MIU and the SID. See Control Module information.
Type
The seat-belt buckle sensors consist of a Hall sensor containing a circuit board and a magnet.
1. Hall sensor
