12
Vehicle safety
Airbag control unit J234
In parallel to the crash sensors, sensors in the
airbag control unit evaluate the severity of the
crash. The relevant side airbag is not triggered
until these sensors have also rcognised that an
accident has occurred and a crash sensor
sends an airbag trigger request.
The two crash sensors below the front seats
perform a function check at regular intervals,
providing feedback to the airbag control unit.
The system status of the side airbags can be
displayed via the self-diagnosis. The airbag
control unit also indicates when a fault may
possibly have occurred in the crash sensors or
the side airbags via the airbag warning lamp.
There is an additional energy storage device in the
airbag control unit for igniting the side airbags. If
the power supply fails during an accident, this
energy storage device has sufficient energy to
power the control unit and, if necessary, to ignite
the airbags.
Self-diagnosis:
The self-diagnosis is started using address word
“15”.
SSP 192/120
The side airbag
is triggered by the
airbag control unit.
The sensors in the con-
trol unit have
recognised an accident
in addition to crash
sensor G178.
Содержание Passat '97
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