light TOYOTA COROLLA 1999 Service Manual

C orolla (U)
34
The seat belt pretensioner system mainly
consists of the following components and
their locations are shown in the illustra-
tion.
1. Front airbag sensor
2. SRS airbag warning light
3. Seat belt pretensioner assemblies
4. Airbag sensor assembly
The seat belt pretensioner is controlled by
the airbag sensor assembly. The airbag
sensor assembly consists of a safing sen-
sor and airbag sensor.When a seat belt pretensioner is acti-
vated, an operating noise may be heard
and a small amount of smoke- like gas
may be released. This gas is harmless
and does not indicate that a fire is occur-
ring.
Once the seat belt pretensioner has been
activated, the seat belt retractor remains
locked.
CAUTION
Do not modify, remove, strike or open
the front seat belt pretensioner as-
semblies, airbag sensor or surround-
ing area or wiring. Doing any of
these may cause sudden operation of
the front seat belt pretensioners or
disable the system, which could re-
sult in serious injury.
Failure to follow these instructions
can result in serious injuries.
NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
seat belt pretensioners in some
cases.

Installation of electronic items such
as a mobile two- way radio, cassette
tape player or compact disc player

Repairs on or near the front seat
belt retractor assemblies

Modification of the suspension sys-
tem

Modification of the front end struc-
ture

Attachment of a grille guard (bull
bar, kangaroo bar, etc.), snowplow,
winches or any other equipment to
the front end

Repairs made on or near the front
fenders, front end structure or con-
sole
ProCarManuals.com

C orolla (U)
35
This front seat belt pretensioner system
has a service reminder indicator to inform
the driver of operating problems. If either
of the following conditions occurs, this
indicates a malfunction of the airbags or
pretensioners. Contact your Toyota dealer
as soon as possible to service the
vehicle.

The light does not come on when the
ignition key is turned to the ºACCº or
ºONº position, or remains on.

The light comes on or flashes while
driving.

If either front seat belt does not retract
or can not be pulled out due to a
malfunction or activation of the preten-
sioner.

The front seat belt pretensioner assem-
bly or surrounding area has been dam-
aged.

The front and side parts of the vehicle
(shaded in the illustration) were in-
volved in an accident not of the extent
to cause the seat belt pretensioners to
operate.

The front seat belt pretensioner assem-
bly is scratched, cracked, or otherwise
damaged.
The SRS (Supplemental Restraint Sys-
tem) airbags are designed to provide
further protection for the driver and
front passenger when added to the pri-
mary protection provided by the seat
belts.
In response to a severe frontal impact,
the SRS airbags work together with the
seat belts to help prevent or reduce injury
by inflating, in order to decrease the likeli-
hood of the driver 's or front passenger 's
head or chest directly hitting the steering
wheel or dashboard. The passenger airbag
is activated even with no passenger in the
front seat.
Be sure to wear your seat belt.
SRS driver and front
passenger airbags
ProCarManuals.com

C orolla (U)
36
CAUTION
A driver or front passenger too close
to the steering wheel or dashboard
during airbag deployment can be
killed or seriously injured. Toyota
strongly recommends that:

The driver sit as far back as pos-
sible from the steering wheel while
still maintaining control of the ve-
hicle.

The front passenger sit as far back
as possible from the dashboard.

All vehicle occupants be properly
restrained using the available seat
belts.This indicator comes on when the igni-
tion key is turned to the ºACCº or
ºONº position. It goes off after about
6 seconds. This means the SRS airbags
are operating properly.
The SRS airbag warning light system
monitors the airbag sensor assembly, in-
flators, warning light, interconnecting wir-
ing and power sources. (For details, see
ºService reminder indicators and warning
buzzersº in Chapter 1- 5.)The SRS airbag system is designed to
activate in response to a severe frontal
impact within the shaded area between
the arrows in the illustration.
There may be the case that the SRS air-
bags will not activate with such an impact
in which the occupant wearing the seat
belt correctly would not get serious injury.
The SRS airbags will deploy if the severi-
ty of the impact is above the designed
threshold level, comparable to an approxi-
mate 25 km/h (15 mph) collision when
impacting straight into a fixed barrier that
does not move or deform.
If the severity of the impact is below the
above threshold level, the SRS airbags
may not deploy.
ProCarManuals.com

C orolla (U)
38
The SRS airbag system mainly consists of
the following components and their loca-
tions are shown in the illustration.
1. Front airbag sensors
2. SRS airbag warning light
3. Airbag module for passenger (airbag
and inflator)
4. Airbag sensor assembly
5. Airbag module for driver (airbag and
inflator)
The airbag sensor assembly consists of a
safing sensor and airbag sensor.In a severe frontal impact, sensors detect
deceleration and the system triggers the
airbag inflators. Then a chemical reaction
in the inflators momentarily fills the air-
bags with non- toxic gas to help restrain
the forward motion of the occupants.
When the airbags inflate, they produce a
fairly loud noise and release some smoke
and residue along with non- toxic gas. This
does not indicate a fire. This gas is nor-
mally harmless, however, for those who
have delicate skin, it may cause minor
skin irritation. Be sure to wash off any
residue as soon as possible to prevent
minor skin irritation.
Deployment of the airbags happens in a
fraction of a second, so the airbags must
inflate with considerable force. While the
system is designed to reduce serious inju-
ries, it may also cause minor burns or
abrasions and swellings.
Parts of the airbag module (steering wheel
hub, dashboard) may be hot for several
minutes, but the airbags themselves will
not be hot. The airbags are designed to
inflate only once.A crash severe enough to inflate the air-
bags may break the windshield as the
vehicle buckles. In vehicles with a pas-
senger airbag the windshield may also be
damaged by absorbing some of the force
of the inflating airbag.
ProCarManuals.com

C orolla (U)
42
NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
SRS airbag system in some cases.

Installation of electronic items such
as a mobile two- way radio, cassette
tape player or compact disc player

Modification of the suspension sys-
tem

Modification of the front end struc-
ture

Attachment of a grille guard (bull
bar, kangaroo bar, etc.), snowplow,
winches or any other equipment to
the front end

Repairs made on or near the front
fenders, front end structure, con-
sole, steering column, steering
wheel or dashboard near the front
passenger 's airbag
This SRS airbag system has a service
reminder indicator to inform the driver of
operating problems. If either of the
following conditions occurs, this indicates
a malfunction of the airbags. Contact your
Toyota dealer as soon as possible to
service the vehicle.

The light does not come on when the
ignition key is turned to the ºACCº or
ºONº position, or remains on.

The light comes on while driving.
In the following cases, contact your Toyota
dealer as soon as possible:

The SRS airbags have been inflated.

The front part of the vehicle (shaded
in the illustration) was involved in an
accident not of the extent to cause the
SRS airbags to inflate.

The pad section of the steering wheel
or front passenger airbag cover
(shaded in the illustration) is scratched,
cracked, or otherwise damaged.
NOTICE
Do not disconnect the battery cables
before contacting your Toyota dealer.
ProCarManuals.com

C orolla (U)
43
SRS side airbags
The SRS (Supplemental Restraint Sys-
tem) side airbags are designed to pro-
vide further protection for the driver
and front passenger when added to the
primary protection provided by the seat
belts.
In response to a severe side impact, the
SRS side airbags work together with the
seat belt to help prevent or reduce injury
by inflating, in order to decrease the im-
pact mainly on the driver's or front pas-
senger 's chest. The SRS side airbag on
the passenger seat is activated even with
no passenger in the front seat.
CAUTION
SRS side airbags inflate with consid-
erable force. To avoid potential death
or serious injury during inflation of a
side airbag, Toyota strongly recom-
mends that the driver and front pas-
senger;

Wear their seat belt

Remain properly seated with their
back against the seat at all times.
This indicator comes on when the igni-
tion key is turned to the ºACCº or
ºONº position. It goes off after about
6 seconds. This means the SRS side
airbags are operating properly.
The warning light system monitors the air-
bag sensor assembly, inflators, warning
light, interconnecting wiring and power
sources. (For details, see ºService remind-
er indicators and warning buzzersº in
Chapter 1- 5.)
ProCarManuals.com

C orolla (U)
45
The SRS side airbag system mainly con-
sists of the following components and
their locations are shown in the illustra-
tion.
1. SRS airbag warning light
2. Side airbag module (airbag and inflator)
3. Side airbag sensor assemblies
4. Airbag sensor assembly
The SRS side airbag system is controlled
by the airbag sensor assembly. The airbag
sensor assembly consists of a safing sen-
sor and airbag sensor.In a severe side impact, the side airbag
sensor triggers the side airbag inflators.
Then a chemical reaction in the inflators
momentarily fills the airbags with non- tox-
ic gas to help restrain the lateral motion
of the occupants.
When the airbags inflate, they produce a
fairly loud noise and release some smoke
and residue along with non- toxic gas. This
does not indicate a fire. This gas is nor-
mally harmless, however, for those who
have delicate skin, it may cause minor
skin irritation. Be sure to wash off any
residue as soon as possible to prevent
minor skin irritation.
Deployment of the airbags happens in a
fraction of a second, so the airbags must
inflate with considerable force. While the
system is designed to reduce serious inju-
ries, it may also cause minor burns or
abrasions and swellings.
Front seats may be hot for several min-
utes, but the airbags themselves will not
be hot. The airbags are designed to inflate
only once.
CAUTION

The SRS side airbag system is de-
signed only as a supplement to the
primary protection of the driver
side and front passenger side seat
belt systems. The front seat occu-
pants can be killed or seriously in-
jured by an inflating airbag if they
do not wear the available seat
belts. During sudden braking just
before a collision, an unrestrained
driver or front passenger can move
sideward into direct contact with or
close proximity to the airbag which
may then deploy during the colli-
sion. To obtain maximum protection
in an accident, the driver and all
passengers in the vehicle must
wear their seat belts. Wearing a
seat belt during an accident re-
duces the chances of death or seri-
ous injuries or being thrown out of
the vehicle. For instructions and
precautions concerning the seat
belt system, see ºSeat beltsº in this
chapter.
ProCarManuals.com

C orolla (U)
47

Do not use accessories for the
seats which cover the parts where
the side airbags should inflate.
Such accessories may prevent the
side airbags from activating correct-
ly, causing death or serious injury.

Do not modify or replace the seats
or surface of the front seats with
the side airbags. Such changes may
disable the system or cause the
side airbags to inflate, resulting in
death or serious injury. Consult
your Toyota dealer.
Failure to follow these instructions
can result in death or serious inju-
ries.
NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
SRS airbag system in some cases.

Installation of electronic items such
as a mobile two- way radio, cassette
tape player or compact disc player

Modification of the suspension sys-
tem

Modification of the side structure of
the passenger compartment

Repairs made on or near the con-
sole or front seat
This SRS side airbag system has a
service reminder indicator to inform the
driver of operating problems. If either of
the following conditions occurs, this
indicates a malfunction of the airbags.
Contact your Toyota dealer as soon as
possible to service the vehicle.

The light does not come on when the
ignition key is turned to the ºACCº or
ºONº position, or remains on.

The light comes on or flashes while
driving.
ProCarManuals.com

C orolla (U)
60
CAUTION

After inserting the tab, make sure
the tab and buckle are locked and
that the lap and shoulder portions
of the belt are not twisted.

Do not insert coins, clips, etc. in
the buckle as this may prevent you
from properly latching the tab and
buckle.

If the seat belt does not function
normally, it cannot protect your
child from injury. Contact your
Toyota dealer immediately. Do not
use the seat until the seat belt is
fixed.
2. Fully extend the shoulder belt to put it
in the lock mode. When the belt is
then retracted even slightly, it cannot
be extended.
To hold the infant seat securely, make
sure the belt is in the lock mode before
letting the belt retract.3. While pressing the infant seat firmly
against the seat cushion and seatback,
let the shoulder belt retract as far as
it will go to hold the infant seat secure-
ly.
ProCarManuals.com

C orolla (U)
63
1. Run the lap and shoulder belt through
or around the convertible seat following
the instructions provided by its
manufacturer and insert the tab into
the buckle taking care not to twist the
belt. Keep the lap portion of the belt
tight.
CAUTION

After inserting the tab, make sure
the tab and buckle are locked and
that the lap and shoulder portions
of the belt are not twisted.

Do not insert coins, clips, etc. in
the buckle as this may prevent you
from properly latching the tab and
buckle.

If the seat belt does not function
normally, it cannot protect your
child from injury. Contact your
Toyota dealer immediately. Do not
use the seat until the seat belt is
fixed.
2. Fully extend the shoulder belt to put it
in the lock mode. When the belt is
then retracted even slightly, it cannot
be extended.
To hold the convertible seat securely,
make sure the belt is in the lock mode
before letting the belt retract.
ProCarManuals.com