2023 TOYOTA 86 ECU

311-1. For safe use
1
For safety and security
■SRS airbag system componentsFront impact sensor (left-hand side)
Front impact sensor (right-hand side)
SRS warning light
Frontal airbag module (driver’s side)
Airbag control module (including impact sensor and rollover sen-
sor)
Front passenger’s frontal airbag ON and OFF indicator
Frontal airbag module (front passenger’s side)
Seatbelt buckle switch (front passenger’s side)
Curtain shield airbag module (right-hand side)
Side impact sensor (door right-hand side)
Side airbag module (fr ont passenger’s side)
Seatbelt pretensioner and adaptive force limiter (front passen-
ger’s side)
Side impact sensor (center pillar right-hand side)
Airbag wiring
Side impact sensor (rear wheel house right-hand side)
Front passenger’s occupant detection system sensor
A
C
D

331-1. For safe use
1
For safety and security
WARNING
●The SRS side airbags and SRS
curtain shield airbags are
designed only to be a supple-
ment to the primary protection
provided by the seatbelt. They
do not eliminate the need to fas-
ten seatbelts. It is also important
to wear a seatbelt to help avoid
injuries that can result when an
occupant is not seated in a
proper upright position.
●The SRS airbags deploy with
considerable speed and force.
Occupants who are not seated
in proper upright position when
the SRS airbag deploys could
suffer serious injury. Because
the SRS airbag needs enough
space for deployment, the driver
should always sit upright and
back in the seat a s far from the
steering wheel as practical
while still maintaining full vehi-
cle control, and the front pas-
senger should move the seat as
far back as possible and sit
upright and we ll back in the
seat.
●Do not sit or lean close to either
door. The SRS side airbags are
stored in both front seat seat-
backs next to the door, and they
provide protection by deploying
rapidly in the event of a side
impact collision. However, the
force of SRS side airbag
deployment can injure an occu-
pant whose body is too close to
an SRS airbag.
●Since your vehicle is equipped
with SRS curtain shield airbags,
do not sit or lean close to the
door on either side. Do not put
body parts out of the window.
The SRS curtain shield airbags
on both sides of the cabin are
stored in the roof side (between
the front pilla r and a point
behind the rear quarter glass),
and they provide protection by
deploying rapidly in the event of
a side impact, rollover or an off-
set frontal collision. However,
the force of its deployment can
injure an occupant whose body
is too close to an SRS airbag.

351-1. For safe use
1
For safety and security
WARNING
●Do not put any objects under
the driver’s side of the instru-
ment panel. If the SRS knee air-
bag deploys, those objects
could interfere with its proper
operation and could be pro-
pelled inside the vehicle, caus-
ing injury.
●Do not attach accessories to the
windshield, or fit an extra-wide
mirror over the inside rear view
mirror. If the SRS airbag
deploys, those objects could
become projectile s that could
seriously injure vehicle occu-
pants.
●Do not attach accessories to the
door trim or near either SRS
side airbags and do not place
objects near the SRS side air-
bags. In the event of SRS side
airbag deployment, they could
be propelled dangerously
toward the vehicle’s occupants
and cause injuries.
●Do not attach a hands-free
microphone or any other acces-
sory to a front pillar, a center pil-
lar, a rear pillar, the windshield,
a side window, or any other
cabin surface that would be
near a deploying SRS curtain
shield airbag. A hands-free
microphone or other accessory
in such a location could be pro-
pelled through the cabin with
great force by the curtain shield
airbag, or it could prevent cor-
rect deployment o f the curtain
shield airbag. In either case, the
result could be serious injuries.
●Do not put any kind of clothes or
other objects over the front
seatback and do not attach
labels or stickers to the front
seat surface on or near the SRS
side airbag. They could prevent
proper deployment of the SRS
side airbag, reducing protection
available to th e front seat’s
occupant.
●Do not install a seat cover
unless it is a genuine Toyota
seat cover exclusively designed
for use with the SRS airbag.
Even when using a genuine
Toyota seat cover, the SRS side
airbag system may not function
normally if the seat cover is not
installed correctly.

361-1. For safe use
WARNING
■General Precautions regard-
ing SRS Airbag System and
Children
●Place children in the rear seat
properly restrained at all times.
The SRS airbag deploys with
considerable speed and force
and can injure or even kill chil-
dren, especially if they are not
restrained or improperly
restrained. Because children
are lighter and weaker than
adults, their risk of being injured
from deployment is greater.
For that reason, we strongly
recommend that ALL children
(including those in child restraint
systems) sit in the REAR seat
properly restrained at all times
in a child restraint device or in a
seatbelt, whichever is appropri-
ate for the child’s age, height
and weight.
Secure ALL types of child
restraint systems (including for-
ward facing child restraint sys-
tem) in the REAR seats at all
times.
According to accident statistics,
children are safer when properly
restrained in the rear seating
positions than in the front seat-
ing positions.
For instructions and precautions
concerning the child restraint
system, refer to P.64.
●NEVER INSTALL A CHILD
RESTRAINT SYSTEM IN THE
FRONT SEAT. DOING SO
RISKS SERIOUS INJURY OR
DEATH TO THE CHILD BY
PLACING THE CHILD’S HEAD
TOO CLOSE TO THE SRS
AIRBAG.
●Never allow a child to stand up
or kneel on the front passen-
ger’s seat. The SRS airbag
deploys with considerable force
and can injure o r even kill the
child.
●Never hold a child on your lap or
in your arms. The SRS airbag
deploys with considerable force
and can injure o r even kill the
child.
●Never allow a child to do the fol-
lowing.
• Kneel on any passenger’s seat facing the side window

371-1. For safe use
1
For safety and security
WARNING

391-1. For safe use
1
For safety and security
This vehicle is equipped with a
Toyota advanced frontal airbag
system that complies with the
advanced frontal airbag require-
ments in the amended Federal
Motor Vehicle Safety Standard
(FMVSS) No. 208.
The Toyota advanced frontal air-
bag system automatically deter-
mines the deployment force of
the driver’s SRS frontal airbag at
the time of deployment as well
as whether or not to activate the
front passenger’s SRS frontal
airbag and, if activated, the
deployment force of the SRS
frontal airbag at the time of
deployment.
Always wear your seatbelt. The
Toyota advanced frontal airbag
system is a supplemental
restraint system and must be
used in combination with a seat-
belt. All occupants should wear
a seatbelt or be seated in an appropriate child restraint sys-
tem.
For the locations of the SRS air-
bags, refer to P.29.
In a moderate to severe frontal
collision, the following compo-
nents deploy.

SRS frontal airbag for driver
 SRS frontal airbag for front
passenger
 SRS curtain shield airbag
*
SRS knee airbag for driver
*: When an offset frontal collision
that is severe enough to deploy
the front airbag occurs.
These components supplement
the seatbelts by reducing the
impact to the occupant’s head,
chest and knees.
■Driver’s SRS frontal airbag
The driver’s SRS frontal airbag
uses a dual stage inflator. The
inflator operates in different
ways depending on the severity
of impact.
■Front passenger’s SRS
frontal airbag
The front passenger’s SRS fron-
tal airbag uses a dual stage
inflator. The inflator operates in
different ways depending on the
severity of impact.
■Occupant detection system
The occupant detection system
sensors are installed between
the seat and seat rails, and
NOTICE
• Between the rear seat cushion and rear wheel house on each
side
●In the event that the SRS airbag
is deployed, replacement of the
system should be performed
only by an auth orized Toyota
dealer. When the components
of the SRS airbag system are
replaced, use only genuine Toy-
ota parts.
Toyota Advanced Frontal
Airbag System

411-1. For safe use
1
For safety and security
Passenger’s sideSRS AIRBAG deploy as soon
as a collision occurs.
After deployment, SRS AIR-
BAG start to deflate immedi-
ately so that the driver’s
vision is not obstructed.
The SRS airbags can function
only when the engine switch is
in ON.
The Toyota advanced frontal air-
bag system is designed to deter-
mine the activation or
deactivation condition of the
front passenger’s SRS frontal
airbag depending on the charac-
teristic of item(s) or person on
the front passenger’s seat moni-
tored by the front passenger’s
occupant detection system sen-
sor. For this reason, only the
driver’s SRS frontal airbag may
deploy in the event of a collision,
but this does not mean failure of
the system.
If the following sensors detect a predetermined amount of force
during a frontal collision, the
control module sends signals to
the airbag module(s) (only
driver’s module or both driver’s
and front passenger’s modules)
instructing the module(s) to
inflate the SRS frontal airbag(s).

The front impact sensors
 The impact sensors in the air-
bag control module
On the driver’s side, the SRS
knee airbag also inflates with
the SRS frontal airbag.
The driver’s and front passen-
ger’s SRS frontal airbags use
dual stage inflators. The two
inflators of each airbag are trig-
gered either sequentially or
simultaneously, depending on
the severity of impact, in the
case of the driver’s SRS frontal
airbag and depending on the
severity of impact and the char-
acteristic of item(s) or person on
the seat in the case of the front
passenger’s SRS frontal airbag.
■After deployment
After deployment, the SRS air-
bag immediately starts to deflate
so that the driver’s vision is not
obstructed and the driver’s abil-
ity to maintain control of the
vehicle is not impaired. The time
required from detecting impact
to the deflation of the SRS air-
bag after deployment is shorter
than the blink of an eye.
A

431-1. For safe use
1
For safety and security
dents in which it is possible
that the driver’s/driver’s and
front passenger’s SRS frontal
airbag(s) will deploy
Only the driver’s SRS frontal airbag
or both driver’s and front passen-
ger’s SRS frontal airbags may be
activated when the vehicle sustains
a hard impact in the undercarriage
area from the road surface (such as
when the vehicle plunges into a
deep ditch, is seve rely impacted or
knocked hard against an obstacle
on the road such as a curb).
 Examples of the types of acci-
dents in which deployment of
the driver’s/driver’s and front
passenger’s SRS frontal air-
bag(s) is unlikely to occur
There are many types of collisions
which might not necessarily require
deployment of driver’s/driver’s and
front passenger’s SRS frontal air-
bag(s). In the eve nt of accidents
like those illu strated, the
driver’s/driver’s and front passen-
ger’s SRS frontal airbag(s) may not
deploy depending on the level of
accident forces involved.
• The vehicle strikes an object, such as a telephone pole or sign
pole. • The vehicle slides under the load
bed of a truck.
• The vehicle sustains an oblique offset frontal impact.
• The vehicle sustains an offset frontal collision.