Seat Position Sensors
The seat position sensor is used to determine the size of the person sitting on the seat. There are two seat position sensors in the vehicle, one under the driver's seat and one under the front passenger seat. The seat position sensors are directly connected to the supplemental restraint system module (SRS). The seat position sensors have separate signal cables to the control module and a common ground.
The seat position sensor consists of a Hall sensor which modifies the current depending on the position of the seat. The seat position sensor has two classifications, these are a small person and a large person. A small person means that the seat is approximately 10 cm from the first seat position and forwards. Other positions are classified as a large person.
This information is used by the function for adaptive seatbelt force limiting.