Lada GRANTA, User Manual

Page: 24 / 140

– the air bag modules in the front
seats;
– the seat belts with the pre-ten-
sioner and the load limiter;
– the rotating device mounted on
the connector of under-steering
switch (for connection of the buzzer
stop switch and the air bag module
with the vehicle circuit);
– the ABS control and diagnostic
unit mounted on the body floor tun-
nel under the console of instrument
panel;
– ABS diagnostics indicator in the
instrument cluster.
The air bags are the additional
means of protection for the driver
and the front seat passenger fas-
tened with the seat belts, and are
actuated during hard frontal or side
collision:
– starting with the specific severi-
ty of collision;
– in the coverage areas shown in
Figure 15a.
The ABS must get actuated in
case of the severe frontal impacts
and the side collision. However, the
ABS may also get actuated in other
emergency situations, if the vehicle
experiences the impacts similar to
those to which it is subject during the
severe frontal impact or the side col-
lision.
Examples for the ABS actuating
situations (Fig. 15b):
– collision with stationary non-
deformable obstruction: the air bag
may be actuated at low speed;
– collision with non-fixed defor-
mable obstruction (for example, with
another vehicle): air bag may be
actuated at the vehicle high speed;
– in case of the ample force impact
affecting the vehicle in front, some
examples are shown in Figure 15b.
The ABS are not actuated during:
– ignition switched off;
– imperceptible frontal and side
collisions;
– vehicle roll-over;
– vehicle side ward impact (
in the
design variant with no air bags) or
vehicle rearward impacts, i.e. in
cases, where the system can
enhance to safety.
The degree of damage to the vehi-
cle body during collision (or absence
of serious damage) is not always an
indicator of the front air bags normal
or abnormal operation.
During the air bag deployment the
danger of visibility restriction for the
driver is virtually absent, as the air
bag is filled and emptied in a short
period of time.
The air bag provides optimum
protection under correct setting of
22
Fig. 15b. Examples of the
ABS actuating situations
Fig. 15a. ABS coverage
and actuating zone
(highlighted in colours)
Impact on the curb, or on
the sidewalk edge, or on
the solid material Falling or shaking on
the deep potholes
The vehicle hard landing or falling from the hump