ECU TOYOTA COROLLA 2014 11.G User Guide

351-1. For safe use
1
For safety and security
COROLLA_TMMMS_TMMC_U (OM12F00U)
SRS airbag system components
Front impact sensors
Front passenger occupant
classification system (ECU
and sensors)
Seat cushion airbag
Side impact sensors (front
doors)
Front passenger airbag
Side airbags
Seat belt pretensioners and
force limiters
Side impact sensors (front)“AIR BAG ON” and “AIR BAG
OFF” indicator lights
Curtain shield airbags
Side impact sensors (rear)
Driver airbag
Driver’s seat belt buckle
switch
Driver’s knee airbag
Airbag sensor assembly
Front passenger’s seat belt
buckle switch
SRS warning light1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

361-1. For safe use
COROLLA_TMMMS_TMMC_U (OM12F00U)
Your vehicle is equipped with ADVANCED AIRBAGS designed based
on the US motor vehicle safety standards (FMVSS208). The airbag
sensor assembly (ECU) controls airbag deployment based on infor-
mation obtained from the sensors etc. shown in the system compo-
nents diagram above. This information includes crash severity and
occupant information. As the airbags deploy, a chemical reaction in
the inflators quickly fills the airbags with non-toxic gas to help restrain
the motion of the occupants.
CAUTION
■SRS airbag precautions
Observe the following precautions regarding the SRS airbags.
Failure to do so may cause death or serious injury.
●The driver and all passengers in the vehicle must wear their seat belts
properly.
The SRS airbags are supplemental devices to be used with the seat belts.
●The SRS driver airbag deploys with considerable force, and can cause
death or serious injury especially if the driver is very close to the airbag.
The National Highway Traffic Safety Administration (NHTSA) advises:
Since the risk zone for the driver’s airbag is the first 2 - 3 in. (50 - 75 mm)
of inflation, placing yourself 10 in. (250 mm) from your driver airbag pro-
vides you with a clear margin of safety. This distance is measured from
the center of the steering wheel to your breastbone. If you sit less than 10
in. (250 mm) away now, you can change your driving position in several
ways:
• Move your seat to the rear as far as you can while still reaching the ped-
als comfortably.
• Slightly recline the back of the seat.
Although vehicle designs vary, many drivers can achieve the 10 in. (250
mm) distance, even with the driver seat all the way forward, simply by
reclining the back of the seat somewhat. If reclining the back of your
seat makes it hard to see the road, raise yourself by using a firm, non-
slippery cushion, or raise the seat if your vehicle has that feature.
• If your steering wheel is adjustable, tilt it downward. This points the air-
bag toward your chest instead of your head and neck.
The seat should be adjusted as recommended by NHTSA above, while
still maintaining control of the foot pedals, steering wheel, and your view
of the instrument panel controls.

371-1. For safe use
1
For safety and security
COROLLA_TMMMS_TMMC_U (OM12F00U)
CAUTION
■SRS airbag precautions
●The SRS front passenger airbag also deploys with considerable force, and
can cause death or serious injury especially if the front passenger is very
close to the airbag. The front passenger seat should be as far from the air-
bag as possible with the seatback adjusted, so the front passenger sits
upright.
●Improperly seated and/or restrained infants and children can be killed or
seriously injured by a deploying airbag. An infant or child who is too small
to use a seat belt should be properly secured using a child restraint sys-
tem. Toyota strongly recommends that all infants and children be placed in
the rear seats of the vehicle and properly restrained. The rear seats are
safer for infants and children than the front passenger seat. (P. 53)
●If the seat belt extender has been con-
nected to the front seat belt buckles but
the seat belt extender has not also been
fastened to the latch plate of the seat
belt, the SRS front airbags will judge
that the driver and front passenger are
wearing the seat belt even though the
seat belt has not been connected. In
this case, the SRS front airbags may
not activate correctly in a collision,
resulting in death or serious injury in the
event of a collision. Be sure to wear the
seat belt with the seat belt extender.

391-1. For safe use
1
For safety and security
COROLLA_TMMMS_TMMC_U (OM12F00U)
CAUTION
■SRS airbag precautions
●Do not attach anything to or lean any-
thing against areas such as the dash-
board, steering wheel pad and lower
portion of the instrument panel.
These items can become projectiles
when the SRS driver, front passenger
and driver’s knee airbag deploy.
●Do not attach anything to areas such as
the door, windshield glass, side door
glass, front or rear pillar, roof side rail
and assist grip.
●Vehicles without a smart key system:
Do not attach any heavy, sharp or hard
objects such as keys and accessories
to the key. The objects may restrict the
SRS driver’s knee airbag inflation or be
thrust into the driver's seat area by the
force of the deploying airbag, thus caus-
ing a danger.

411-1. For safe use
1
For safety and security
COROLLA_TMMMS_TMMC_U (OM12F00U)
■If the SRS airbags deploy (inflate)
●Bruising and slight abrasions may result from contact with a deploying
(inflating) SRS airbag.
●A loud noise and white powder will be emitted.
●Parts of the airbag module (steering wheel hub, airbag cover and inflator) as
well as the front seats, parts of the front and rear pillars, and roof side rails,
may be hot for several minutes. The airbag itself may also be hot.
●The windshield may crack.
■SRS airbag deployment conditions (SRS front airbags)
●The SRS front airbags will deploy in the event of an impact that exceeds the
set threshold level (the level of force corresponding to an approximately 12 -
18 mph [20 - 30 km/h] frontal collision with a fixed wall that does not move or
deform).
However, this threshold velocity will be considerably higher in the following
situations:
• If the vehicle strikes an object, such as a parked vehicle or sign pole,
which can move or deform on impact
• If the vehicle is involved in an underride collision, such as a collision in
which the front of the vehicle “underrides”, or goes under, the bed of a
truck
●Depending on the type of collision, it is possible that only the seat belt pre-
tensioners will activate.
●The SRS front airbags for the front passenger will not activate if there is no
passenger sitting in the front passenger seat. However, the SRS front air-
bags for the front passenger may deploy if luggage is put in the seat, even if
the seat is unoccupied.
●The SRS seat cushion airbag on the front seats will not operate if the occu-
pant is not wearing a seat belt.
■SRS airbag deployment conditions (SRS side and curtain shield airbags)
●The SRS side and curtain shield airbags will deploy in the event of an
impact that exceeds the set threshold level (the level of force corresponding
to the impact force produced by an approximately 3300 lb. [1500 kg] vehicle
colliding with the vehicle cabin from a direction perpendicular to the vehicle
orientation at an approximate speed of 12 - 18 mph [20 - 30 km/h]).
●The SRS side and curtain shield airbags may also deploy in the event of a
severe frontal collision.

431-1. For safe use
1
For safety and security
COROLLA_TMMMS_TMMC_U (OM12F00U)■Types of collisions that may not deploy the SRS airbags (SRS side and
curtain shield airbags)
The SRS side and curtain shield airbags may not activate if the vehicle is
subjected to a collision from the side at certain angles, or a collision to the
side of the vehicle body other than the passenger compartment.
The SRS side and curtain shield airbags do not generally inflate if the vehicle
is involved in a rear collision, if it rolls over, or if it is involved in a low-speed
side collision. ●Collision from the side to the vehicle
body other than the passenger compart-
ment
●Collision from the side at an angle
●Collision from the rear
●Vehicle rollover

451-1. For safe use
1
For safety and security
COROLLA_TMMMS_TMMC_U (OM12F00U)●The portion of the front pillars, rear pil-
lars or roof side rail garnishes (padding)
containing the curtain shield airbags
inside is scratched, cracked, or other-
wise damaged.

471-1. For safe use
1
For safety and security
COROLLA_TMMMS_TMMC_U (OM12F00U)■
Adult*1
■Child*4
Condition and operation in the front passenger occupant classi-
fication system
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF”
indicator lights“AIR BAG ON”
SRS warning lightOff
Seat belt reminder lightOff*2 or
flashing
*3
Devices
Front passenger airbag
ActivatedSide airbag
on the front passenger seat
Curtain shield airbag
in the front passenger side
Seat cushion airbag
in the front passenger sideActivated*2 or
deactivated
*3
Front passenger’s seat belt pretensionerActivated
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF”
indicator lights“AIR BAG OFF”
or “AIR BAG
ON”
*4
SRS warning lightOff
Seat belt reminder lightOff*2 or
flashing
*3
Devices
Front passenger airbagDeactivated or
activated
*4
Side airbag
on the front passenger seat
ActivatedCurtain shield airbag
in the front passenger side
Seat cushion airbag
in the front passenger sideDeactivated or
activated
*4, 2
Front passenger’s seat belt pretensionerActivated

491-1. For safe use
1
For safety and security
COROLLA_TMMMS_TMMC_U (OM12F00U)■
There is a malfunction in the system
*1: The system judges a person of adult size as an adult. When a smaller
adult sits in the front passenger seat, the system may not recognize
him/her as an adult depending on his/her physique and posture.
*2: In the event the front passenger is wearing a seat belt.
*3: In the event the front passenger does not wear a seat belt
*4: For some children, child in seat, child in booster seat or child in convert-
ible seat, the system may not recognize him/her as a child. Factors
which may affect this can be the physique or posture.
*5: Never install a rear-facing child restraint system on the front passenger
seat. A forward-facing child restraint system should only be installed on
the front passenger seat when it is unavoidable. (P. 53)
*6: In case the indicator light is not illuminated, consult this manual on how
to install the child restraint system properly. (P. 57)
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF”
indicator lights“AIR BAG OFF”
SRS warning light
On
Seat belt reminder light
Devices
Front passenger airbagDeactivated
Side airbag
on the front passenger seat
ActivatedCurtain shield airbag
in the front passenger side
Seat cushion airbag
in the front passenger sideDeactivated
Front passenger’s seat belt pretensionerActivated

511-1. For safe use
1
For safety and security
COROLLA_TMMMS_TMMC_U (OM12F00U)
CAUTION
■Front passenger occupant classification system precautions
●Do not recline the front passenger seatback so far that it touches the rear
seat. This may cause the “AIR BAG OFF” indicator light to be illuminated,
which indicates that the SRS airbags for the front passenger will not
deploy in the event of a severe accident. If the seatback touches the rear
seat, return the seatback to a position where it does not touch the rear
seat. Keep the front passenger seatback as upright as possible when the
vehicle is moving. Reclining the seatback excessively may lessen the
effectiveness of the seat belt system.
●If an adult sits in the front passenger seat, the “AIR BAG ON” indicator
light is illuminated. If the “AIR BAG OFF” indicator is illuminated, ask the
passenger to sit up straight, well back in the seat, feet on the floor, and
with the seat belt worn correctly. If the “AIR BAG OFF” indicator still
remains illuminated, either ask the passenger to move to the rear seat, or
if that is not possible, move the front passenger seat fully rearward.
●When it is unavoidable to install a forward-facing child restraint system on
the front passenger seat, install the child restraint system on the front pas-
senger seat in the proper order. (P. 57)
●Do not modify or remove the front seats.
●Do not kick the front passenger seat or subject it to severe impact. Other-
wise, the SRS warning light may come on to indicate a malfunction of the
front passenger occupant classification system. In this case, contact your
Toyota dealer immediately.
●Child restraint systems installed on the rear seat should not contact the
front seatbacks.
●Do not use a seat accessory, such as a cushion and seat cover, that cov-
ers the seat cushion surface.
●Do not modify or replace the upholstery of the front seat.