Seat position sensor (US version)
According to the regulations of the FMVSS (Federal Motor Vehicle Safety Standard), a 5th percentile woman must be distinguished from a 50th percentile man on the driver's seat. The seating position sensor detects the airbag range designed for a person with regard to the seat adjustment in longitudinal direction.
The seating position sensor is a Hall sensor and it is supplied with voltage via the Crash Safety Module.
The signal of the seating position sensor also influences the delayed triggering of stage 2 of the inflator assembly (driver's airbag and front passenger airbag) as well as the ignition squib for opening the discharge hole.
If the vehicle is equipped with a memory seat, the seat-position sensor is omitted.