Sonata V6-3.3L (2006)
Seat Occupant Sensor: Description and Operation
Seat Track Position Sensor
SEAT TRACK POSITION SENSOR
DESCRIPTION
The STPS operated via a non-contacting magnetic proximity sensing device combined with a simple electronic circuit resulting in the ability of
producing two separate and distinct logic level signals.
The STPS output signal is altered by the proximity of a separate ferro-magnetic shunt, which is linked via the seat-track. The logic signal produced is the
result of the proximity device being activated (shunt present) or deactivated (no shunt present).
When the seat is in the forward position zone of the track, the sensor gives a low current (airbag inflator 2nd stage prohibit) signal. When the seat is in
the rear position zone of the track, it gives a high current (airbag inflator 2nd stage enable) signal.
