S 65 AMG (221.179) V12-6.0L Turbo (275.982) (2008)
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Seat Occupant Classification Module - Air Bag: Description and Operation
GF91.60-P-4046SXU WSS (Weight Sensing System) Control Unit, Component Description
- with CODE (494) USA version
Component Identification
Location
The WSS control unit is located at the seat frame of the front passenger seat.
Task
^
Power supply and evaluation of WSS sensors (B48/11, B48/12, B48/13, B48/14)
^
Power supply and evaluation of the belt tension sensor (B48/3)
^
Calculation of classification of weight on front passenger seat
^
Provision of weight classification via the interior CAN
^
Self-test of the WSS control unit, the WSS sensors and the belt tension sensor.
^
Storage of detected faults
The WSS control unit evaluates the data from the WSS sensors and the belt tension sensor. The measurements are used to assign a weight classification
to the weight on the seat, which is then sent to the restraint systems control unit (N2/7) via the interior CAN and the chassis CAN for precise control of
the front passenger airbag unit.
Discrete inputs
^
Circuit 31
^
Circuit 30
^
Data of the WSS sensors
^
Data of the belt tension sensor
Discrete outputs
^
Voltage supply of WSS sensors
^
Belt tension sensor power supply
CAN signals
The WSS control unit is an interior CAN subscriber.
