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