SL 550 (230.471) V8-5.5L (273.965) (2008)
Seat Occupant Classification Module - Air Bag: Description and Operation
GF91.60-P-4046R WSS (Weight Sensing System) Control Unit, Component Description
- as of 1.3.06
- with CODE (494) USA version
Component Identification
Location
The WS control unit is located on the seat frame of the front passenger seat.
Task
^
Evaluation and voltage supply of:
-
Belt tension sensor (B48/3)
-
Pressure sensor (B48/4)
^
Weight categorization of applied weight (adult, object or child seat)
^
Provision of weight category on CAN-B
^
Save self-test and faults
After detecting occupation of the front passenger seat, the WS control unit uses the data recorded by the pressure sensor and belt tension sensor to
determine a weight category for the person, object or child seat.
The weight category data are sent over the Controller Area Network bus Class B (interior) (CAN-B) to the restraint systems control unit (N2/7) for
precise actuation of the front passenger airbag unit.
Discrete inputs
^
Term. 15R
^
Circuit 31
^
Data of
-
Belt tension sensor
-
Pressure sensor
Discrete outputs
^
Voltage supply of
-
Belt tension sensor
-
Pressure sensor