MAZDA MODEL MAZDASPEED 3 2011 (in English) Repair Manual

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Do not modify the suspension:
Modifying the vehicle suspension is dangerous. If the vehicle's height or the
suspension is modified, the vehicle will be unable to accurately detect a collision
resulting in incorrect or unexpected air bag deployment and the possibility of serious
injuries.
Do not modify the supplemental restraint system:
Modifying the components or wiring of the supplemental restraint system is
dangerous. You could accidentally activate it or make it inoperable. Do not make
any modifications to the supplemental restraint system. This includes installing trim,
badges, or anything else over the air bag modules. It also includes installing extra
electrical equipment on or near system components or wiring. An Authorized Mazda
Dealer can provide the special care needed in the removal and installation of front
seats. It is important to protect the air bag wiring and connections to assure that the
bags do not accidentally deploy, the driver seat slide position sensor and front
passenger seat weight sensors are not damaged and that the seats retain an
undamaged air bag connection.
NOTE
lWhen an air bag deploys, a loud inflation noise can be heard and some smoke will be released.
Neither is likely to cause injury, however, the texture of the air bags may cause light skin injuries
on body parts not covered with clothing through friction.
lShould you sell your Mazda, we urge you to tell the new owner of its air bag systems and that
familiarization with all instructions about them, from the Owner's Manual, is important.
Essential Safety Equipment
SRS Air Bags
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Supplemental Restraint System Components
Driver/Front passenger inflators and air bags
Crash sensor, and diagnostic module (SAS unit)
Front seat belt pretensioner and load limiting systems (page 2-20)
Front air bag sensor
Side crash sensorsí
Air bag/front seat belt pretensioner system warning light (page 2-51)
Side and curtain inflators and air bagsí
Front passenger air bag deactivation indicator light (page 2-56)
Front passenger seat weight sensors (page 2-56)
Front passenger seat weight sensor control module
Driver and front passenger seat belt buckle switches (page 2-60)
Driver seat slide position sensor (page 2-56)
NOTE
-are equipped only on models with the driver and front passenger occupant classification
system.
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SRS Air Bags
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How the SRS Air Bags Work
Your Mazda is equipped with the following types of SRS air bags. SRS air bags are
designed to work together with the seat belts to help to reduce injuries during an accident.
The SRS air bags are designed to provide further protection for passengers in addition to
the seat belt functions. Be sure to wear seat belts properly.
qFront Seat Belt Pretensioners
The front seat belt pretensioners are designed to deploy in moderate or severe frontal, near
frontal collisions.
qDriver Air Bag
The driver's air bag is mounted in the steering wheel.
When air bag crash sensors detect a frontal impact of greater than moderate force, the
driver's air bag inflates quickly helping to reduce injury mainly to the driver's head or chest
caused by directly hitting the steering wheel.
For more details about air bag deployment, refer to“SRS Air Bag Deployment Criteria”
(page 2-53).
(With Driver and Front Passenger Occupant Classification System)
The driver's dual-stage air bag controls air bag inflation in two energy stages. During an
impact of moderate severity the driver's air bag deploys with lesser energy, whereas during
more severe impacts, it deploys with more energy.
qFront Passenger Air Bag
The front passenger air bag is mounted in the front passenger dashboard. The inflation
mechanism for the front passenger air bag is the same as the driver's air bag, as mentioned
above.
For more details about air bag deployment, refer to“SRS Air Bag Deployment Criteria”
(page 2-53).
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SRS Air Bags
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(With Driver and Front Passenger Occupant Classification System)
In addition, the front passenger air bag is designed to only deploy in accordance with the
total seated weight on the front passenger seat. For details, refer to the driver and front
passenger occupant classification system (page 2-56).
qSide Air Bagsí
The side air bags are mounted in the outboard sides of the front seatbacks.
When the air bag crash sensors detect a side impact of greater than moderate force, the
system inflates the side air bag only on the side in which the vehicle was hit. The side air
bag inflates quickly to reduce injury to the driver or front passenger's chest caused by
directly hitting interior parts such as a door or window.
For more details about air bag deployment, refer to“SRS Air Bag Deployment Criteria”
(page 2-53).
(With Driver and Front Passenger Occupant Classification System)
In addition, the front passenger side air bag is designed to only deploy in accordance with
the total seated weight on the front passenger seat. For details, refer to the driver and front
passenger occupant classification system (page 2-56).
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qCurtain Air Bagsí
The curtain air bags are mounted in the front and rear window pillars, and the roof edge
along both sides.
When the air bag crash sensors detect a side impact of greater than moderate force, the
curtain air bag inflates quickly and helps to reduce injury mainly to the rear outboard
passenger's head caused by directly hitting interior parts such as a door or window.
For more details about air bag deployment, refer to“SRS Air Bag Deployment Criteria”
(page 2-53).
In a side impact:
Greater than moderate impact to one side of the vehicle will cause the curtain air bag on
that side only to inflate.
The side and curtain air bags will deploy only on the side the
vehicle receives the force of the impact.
qAir Bag/Front Seat Belt Pretensioner System Warning Light
If the air bag/front seat belt pretensioner system is working properly, the warning light
illuminates when the ignition is switched ON or after the engine is cranked. The warning
light turns off after a specified period of time.
A system malfunction is indicated if the warning light constantly flashes, constantly
illuminates or does not illuminate at all when the ignition is switched ON. If any of these
occur, consult an Authorized Mazda Dealer as soon as possible. The system may not work
in an accident.
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SRS Air Bags
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WARNING
Never tamper with the air bag/pretensioner systems and always have an Authorized
Mazda Dealer perform all servicing and repairs:
Self-servicing or tampering with the systems is dangerous. An air bag/pretensioner
could accidentally activate or become disabled causing serious injury or death.
qAir Bag/Front Seat Belt Pretensioner System Warning Beep
If a malfunction is detected in the air bag/front seat belt pretensioner systems and the
warning light, a warning beep sound will be heard for about 5 seconds every minute.
The air bag and seat belt pretensioner system warning beep sound will continue to be heard
for approximately 35 minutes.
Have your vehicle inspected at an Authorized Mazda Dealer as soon as possible.
WARNING
Do not drive the vehicle with the air bag/front seat belt pretensioner system warning
beep sounding:
Driving the vehicle with the air bag/front seat belt pretensioner system warning beep
sounding is dangerous. In a collision, the air bags and the front seat belt
pretensioner system will not deploy and this could result in death or serious injury.
Contact an Authorized Mazda Dealer to have the vehicle inspected as soon as
possible.
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SRS Air Bag Deployment Criteria
This chart indicates the applicable SRS equipment that will deploy depending on the type
of collision.
(The illustrations are the representative cases of collisions.)
SRS
equipmentTypes of collision
A severe frontal/near frontal collision A severe side collision A rear collision
Front seat
belt
pretensionerX*1(both sides)
No air bag and front seat
belt pretensioner will be
activated in a rear collision. Driver air
bagX
Front
passenger air
bagX
*1
Side air
bagíX*1(impact side only)
Curtain air
bag
íX (impact side only)
X: The SRS air bag equipment is designed to deploy in a collision.
*1:(With Driver and Front Passenger Occupant Classification System)
The front passenger front and side air bags and the seat belt pretensioner are designed
to deploy depending on the condition of the total seated weight on the front passenger
seat.
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SRS Air Bags
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Limitations to SRS Air Bag
In severe collisions such as those described previously in“SRS Air Bag Deployment
Criteria”, the applicable SRS air bag equipment will deploy. However, in some accidents,
the equipment may not deploy depending on the type of collision and its severity.
Limitations to front/near front collision detection:
The following illustrations are examples of front/near front collisions that may not be
detected as severe enough to deploy the SRS air bag equipment.
Impacts involving trees or polesFrontal offset impact to the vehicle
Rear-ending or running under a truck's tail gate
Limitations to side collision detection:
The following illustrations are examples of side collisions that may not be detected as
severe enough to deploy the SRS air bag equipment.
Side impacts involving trees or polesSide impacts with two-wheeled vehicles
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Roll-over
Essential Safety Equipment
SRS Air Bags
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Driver and Front Passenger Occupant Classification Systemí
First, please read“Supplemental Restraint System (SRS) Precautions”(page 2-43)
carefully.
qDriver Seat Slide Position Sensor
Your vehicle is equipped with a driver seat slide position sensor as a part of the
supplemental restraint system. The sensor is located under the driver seat. The sensor
determines whether the driver seat is fore or aft of a reference position and sends the seat
position to the diagnostic module (SAS unit). The SAS unit is designed to control the
deployment of the driver air bag depending on how close the driver seat is to the steering
wheel.
The air bag/front seat belt pretensioner system warning light flashes if the sensor has a
possible malfunction (page 2-51).
qFront Passenger Seat Weight Sensors
Your vehicle is equipped with a front passenger seat weight sensors as a part of the
supplemental restraint system. These sensors are located under both of the front passenger
seat rails. These sensors determine the total seated weight on the front passenger seat and
monitor the seat belt buckle for the front passenger seat. The SAS unit is designed to
prevent the front passenger front and side air bags and seat belt pretensioner system from
deploying if the front passenger air bag deactivation indicator light illuminates.
To reduce the chance of injuries caused by deployment of the front passenger air bag, the
system deactivates the front passenger front and side air bags and also the seat belt
pretensioner system when the front passenger air bag deactivation indicator light
illuminates.Refer to the following table for the front passenger air bag deactivation
indicator light illumination conditions.
This system shuts off the front passenger front and side air bags and seat belt pretensioner
system, so make sure the front passenger air bag deactivation indicator light illuminates
according to the following table.
The air bag/front seat belt pretensioner system warning light flashes and the front
passenger air bag deactivation indicator light illuminates if the sensors have a possible
malfunction. If this happens, the front passenger front and side air bags and seat belt
pretensioner system will not deploy.
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