sensor MAZDA MODEL MX-5 MIATA 2004 Owners Manual

2-22
Essential Safety Equipment
SRS Air Bags
Form No. 8S15-EA-03G
Installation of Front-End Equipment:
Installation of front-end equipment, such as frontal protection bar (kangaroo bar,
bull bar, push bar, etc.), snowplow, or winches, is dangerous. The air bag crash sensor
system could be affected. This could cause air bags to inflate unexpectedly, or it could
prevent the air bags from inflating during an accident. Occupants could be seriously
injured. Never install any front-end equipment to your vehicle.
Suspension Adjustment:
Adjusting the vehicle suspension is dangerous. If the vehicle’s height or the
suspension is changed, the vehicle will be unable to accurately detect a collision
resulting in incorrect or unexpected air bag deployment and the possibility of serious
injuries.
Modification of 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. Don ’t make any
modifications to the supplemental restraint system. This includes installing trim,
badges, or anything else over the air bag storage areas. It also includes installing
extra electric equipment on or near system components or wiring.
NOTE
• When 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.
• Should 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.
WARNING
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2-26
Essential Safety Equipment
SRS Air Bags
Form No. 8S15-EA-03G
The supplemental restraint systems (SRS) have two basic subsystems:
•The air bag system with inflators and air bags.
• The electric system with crash sensors and diagnostic module.
The air bags are mounted in the following locations: the center of the steering wheel, the
passenger-side of the dashboard. They are out of sight until activated.
The passenger air bag has a deactivation switch located on the center console (page 2-23).

How the Air Bags Work
When air bag crash sensors detect a frontal impact of greater than moderate force, an
electrical current is sent to the inflators.
Gases are produced to inflate the air bags and after the inflation, the air bags quickly
deflate.
The air bags will function only once. After that, the air bags will not work again and
must be replaced.
Only an Authorized Mazda Dealer can replace the systems.
Air Bag System Description
Crash sensor
Inflators and air bags
Crash sensors and diagnostic
module (SAS unit)
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2-29
Essential Safety Equipment
SRS Air Bags
Form No. 8S15-EA-03G

Constant Monitoring
The following components of the air bag
systems are monitored by a diagnostic
system:
• SAS unit
• Crash sensor
• Air bag modules
• Seat belt pretensioners
• Related wiring
• Passenger air bag deactivation switch
A diagnostic module continuously
monitors the systems ’ readiness. This
begins when the ignition switch is turned
to the ON position and continues while
the vehicle is being driven.

Air Bag/Seat Belt Pretensioner
System Warning Light
If the air bag/seat belt pretensioner system
is OK, the warning light illuminates when
the ignition switch is turned to the ON
position or after the engine is cranked.
After about 6 seconds it goes out.
A system malfunction is indicated when
the warning light constantly flashes, stays
on or doesn
’t illuminate at all when the
ignition switch is turned to the ON
position. If any of these occur, consult an
Authorized Mazda Dealer as soon as
possible. The system may not work in an
accident.
Self-Servicing the Air Bag/
Pretensioner Systems:
Self-servicing or tampering with the
systems is dangerous. An air bag/
pretensioner could accidentally
activate or become disabled. This
could cause serious injuries. Never
tamper with the systems and always
have an Authorized Mazda Dealer
performs all servicing and repairs.
WARNING
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2-30
Essential Safety Equipment
SRS Air Bags
Form No. 8S15-EA-03G

Maintenance
The air bag systems do not require regular
maintenance. But if any of the following
occurs, take your vehicle to an Authorized
Mazda Dealer as soon as possible:
• The air bag system warning light
flashes.
• The air bag system warning light
remains illuminated.
• The air bag system warning light
remains off when the ignition switch is
turned to the ON position.
• The air bags inflate.
Damaged Air Bag Sensors:
Driving with damaged air bag sensors
is dangerous. A collision, even one
not strong enough to inflate the air
bags, could damage the sensors. If
there was a subsequent collision, a
damaged sensor would not inflate the
air bags. Always have an Authorized
Mazda Dealer inspect the air bag
systems after a collision.
Removing Interior Parts:
Removing any components such as
the front dashboard, the steering
wheel or parts containing air bag
parts or sensors is dangerous. These
parts contain essential air bag parts.
The air bag could accidentally
activate and cause serious injuries.
Always have an Authorized Mazda
Dealer remove these parts.
Air Bag Disposal:
Improper disposal of an air bag or a
vehicle with live air bags in it can be
extremely dangerous. Unless all
safety procedures are followed, injury
can result. Ask an Authorized Mazda
Dealer how to safely dispose of an air
bag or how to scrap an air bag
equipped vehicle.
WARNING
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4-2
Before Driving Your Mazda
Form No. 8S15-EA-03G
Fuel and Engine Exhaust Precautions
Vehicles with catalytic converters or oxygen sensors must use ONLY UNLEADED FUEL,
which will reduce exhaust emissions and keep spark plug fouling to a minimum.
Your Mazda will perform best with fuel listed in the table.
*U.S. federal law requires that octane ratings be posted on gasoline station pumps.
You may use a regular unleaded fuel with Octane Rating from 87 to 90 (91 to 95 RON) but
this will slightly reduce performance.
Fuel with a rating lower than 87 octane (91 RON) could cause the emission control system
to lose effectiveness. It could also cause engine knocking and serious engine damage.
Gasoline blended with oxygenates such as alcohol or ether compounds are generally
referred to as oxygenated fuels. The common gasoline blend that can be used with your
vehicle is ethanol blended at no more than 10%. Gasoline containing alcohol, such as
ethanol or methanol, may be marketed under the name "Gasohol".
Vehicle damage and drivability problems resulting from the use of the following may not
be covered by the Mazda warranty.
•Gasohol containing more than 10% ethanol.
• Gasoline or gasohol containing methanol.
• Leaded fuel or leaded gasohol.
Fuel Requirements
Fuel
Octane Rating* (Anti-knock index)
Premium unleaded fuel 91 [ (R+M)/2 method] or above (96 RON or above)
•USE ONLY UNLEADED FUEL.
Leaded fuel is harmful to the catalytic converter or the oxygen sensor. The lead will
accumulate on the oxygen sensor and the catalyst inside the converter. This will result
in a malfunction of the emission control system, causing poor performance.
• Your vehicle can only use oxygenated fuels containing no more than 10% ethanol by
volume. Damage to your vehicle may occur when ethanol exceeds this
recommendation, or if the gasoline contains any methanol. Stop using gasohol of any
kind if your vehicle engine is performing poorly.
• Never add fuel system additives. Never add cleaning agents other than those specified
by Mazda. Other cleaning agents and additives may damage the system. Consult an
Authorized Mazda Dealer.
CAUTION
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