sensor MAZDA MODEL MX-5 MIATA PRHT 2011 Owner's Manual

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Monitoring and Maintenance
qConstant Monitoring
The following components of the air bag systems are monitored by a diagnostic system:
lCrash sensors, and diagnostic module (SAS unit)lFront air bag sensorlAir bag moduleslSide crash sensorsí
lAir bag/Seat belt pretensioner system warning lightlSeat belt pretensionerslRelated wiringlFront passenger air bag deactivation indicator lightlFront passenger air bag deactivation switchlDriver seat slide position sensorlFront passenger seat weight sensorslFront passenger seat weight sensor control module
The diagnostic module continuously monitors the system's readiness. This begins when the
ignition is switched ON and continues while the vehicle is being driven.
q 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:
lThe air bag system warning light flashes.lThe air bag system warning light remains illuminated.lThe air bag system warning light does not illuminate when the ignition is switched ON.lThe air bags have deployed.lPassenger air bag deactivation indicator light does not illuminate when the ignition is
switched ON or does not illuminate as indicated in the chart or when you manually
deactivate the passenger air bag with the key.
For more details about passenger air bag deactivation, refer to:
lPassenger seat weight sensors (page 2-47)lPassenger air bag deactivation switch (page 2-43)
Essential Safety Equipment
SRS Air Bags
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WARNING
Do not operate a vehicle with damaged air bag/seat belt pretensioner system
components:Expended or damaged air bag/seat belt pretensioner system components must be
replaced after any collision which caused them to deploy or damage them. Only a
trained Authorized Mazda Dealer can fully evaluate these systems to see that they
will work in any subsequent accident. Driving with an expended or damaged air bag
or pretensioner unit will not afford you the necessary protection in the event of any
subsequent accident which could result in serious injury or death.
Do not remove interior air bag parts: Removing any components such as the seats, dashboard, the steering wheel or parts
on the front and rear window pillars and along the roof edge, containing air bag
parts or sensors is dangerous. These parts contain essential air bag components. The
air bag could accidentally activate and cause serious injuries. Always have an
Authorized Mazda Dealer remove these parts.
Dispose of the air bag properly: 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.
NOTE
If it becomes necessary to have the components or wiring system for the supplementary restraint
system modified to accommodate a person with certain medical conditions in accordance with a
certified physician, contact an Authorized Mazda Dealer, refer to “Customer Assistance (U.S.A.) ”
(page 9-2).
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Essential Safety Equipment
SRS Air Bags
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NOTElDo not use glass cleaner or suspend objects
on or around the light sensor. Otherwise,
light sensor sensitivity will be affected and
may not operate normally.
Light sensor
Light sensor
lFor information regarding the 3 buttons
(
,,) on the auto-dimming
mirror, refer to HomeLink Wireless Control
System (page 5-63).
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Knowing Your Mazda
Steering Wheel and Mirrors
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Fuel Requirements
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.
FuelOctane Rating*(Anti-knock index)
Premium unleaded fuel 91 [ (R+M)/2 method] or above (96 RON or above)
* U.S. federal law requires that octane ratings be posted on gasoline station pumps.
You may use a regular unleaded fuel with an Octane Rating from 87 to 90 (91 to 95 RON)
but this will slightly reduce performance, such as reduced engine output, and engine
knocking.
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.
CAUTION
Ø USE ONLY UNLEADED FUEL.
Leaded fuel is harmful to the catalytic converter and oxygen sensors and will lead
to deterioration of the emission control system and or failures.
Ø 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.
Ø Never add fuel system additives. Otherwise, the emission control system could be
damaged. Consult an Authorized Mazda Dealer for details.
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.
lGasohol containing more than 10% ethanol.lGasoline or gasohol containing methanol.lLeaded fuel or leaded gasohol.
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Before Driving Your Mazda
Fuel and Engine Exhaust Precautions
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Dynamic Stability Control
(DSC)
í
The Dynamic Stability Control (DSC)
automatically controls braking and engine
torque in conjunction with systems such
as ABS and TCS to help control side slip
when driving on slippery surfaces, or
during sudden or evasive maneuvering,
enhancing vehicle safety.
Refer to ABS (page 5-9) and TCS (page
5-26).
WARNING
Do not rely on the dynamic stability
control as a substitute for safe driving:The dynamic stability control (DSC)
cannot compensate for unsafe and
reckless driving, excessive speed,
tailgating (following another vehicle
too closely), and hydroplaning
(reduced tire friction and road
contact because of water on the road
surface). You can still have an
accident.
CAUTION
ØThe DSC may not operate correctly
unless the following are observed:
ØUse tires of the correct size
specified for your Mazda on all
four wheels.
ØUse tires of the same
manufacturer, brand and tread
pattern on all four wheels.
ØDo not mix worn tires.
Ø The DSC may not operate correctly
when tire chains are used or a
temporary spare tire is installed
because the tire diameter changes.
Ø If repair or replacement of the
steering or other surrounding
equipment is necessary, have it
done at an Authorized Mazda
Dealer. If the center position of the
steering deviates, the DSC may not
operate correctly because there is
a sensor in the steering which
detects driving conditions.
qTCS/DSC Indicator Light
This indicator light stays on for a few
seconds when the ignition is switched
ON. If the TCS or DSC is operating, the
indicator light flashes.
If the light stays on, the TCS or DSC may
have a malfunction and they may not
operate correctly. Take your vehicle to an
Authorized Mazda Dealer.
Driving Your Mazda
Starting and Driving
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Tire Pressure Monitoring Systemí
The tire pressure monitoring system (TPMS) monitors the pressure for each tire.
If tire pressure is too low in one or more tires, the system will inform the driver via the
warning light in the instrument panel and by the warning beep sound.
The tire pressure sensors installed on each wheel send tire pressure data by radio signal to
the receiver unit in the vehicle.
Tire pressure sensors
NOTE
When the ambient temperature is low due to seasonal changes, tire temperatures are also lower.
When the tire temperature decreases, the air pressure decreases as well. The TPMS warning light
may illuminate more frequently. Visually inspect the tires daily before driving, and check tire
pressures monthly with a tire pressure gauge. When checking tire pressures, use of a digital tire
pressure gauge is recommended.
TPMS does not alleviate your need to check the pressure and condition of all four tires
regularly.
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Driving Your Mazda
íSome models.
Starting and Driving
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Adjust the tire pressure to the correct tire
pressure. Refer to the specification charts
(page 10-7).
CAUTION
When replacing/repairing the tires or
wheels or both, have the work done
by an Authorized Mazda Dealer, or
the tire pressure sensors may be
damaged.NOTE
lPerform tire pressure adjustment when the
tires are cold. Tire pressure will vary
according to the tire temperature, therefore
let the vehicle stand for 1 hour or only drive
it 1.6 km (1 mile) or less before adjusting
the tire pressures. When pressure is
adjusted on hot tires to the cold inflation
pressure, the TPMS warning light/beep may
turn on after the tires cool and pressure
drops below specification.
Also, an illuminated TPMS warning light,
resulting from the tire air pressure dropping
due to cold ambient temperature, may turn
off if the ambient temperature rises. In this
case, it will also be necessary to adjust the
tire air pressures. If the TPMS warning
light illuminates due to a drop in tire air
pressure, make sure to check and adjust the
tire air pressures.
lAfter adjusting the tire air pressures, it may
require some time for the TPMS warning
light to turn off. If the TPMS warning light
remains illuminated, drive the vehicle at a
speed of at least 25 km/h (16 mph) for 10
minutes, and then verify that it turns off.
lTires lose air naturally over time and the
TPMS cannot tell if the tires are getting too
soft over time or you have a flat. However,
when you find one low tire in a set of four-
that is an indication of trouble; you should
have someone drive the vehicle slowly
forward so you can inspect any low tire for
cuts and any metal objects sticking through
tread or sidewall. Put a few drops of water
in the valve stem to see if it bubbles
indicating a bad valve. Leaks need to be
addressed by more than simply refilling the
trouble tire as leaks are dangerous - take it
to an Authorized Mazda Dealer which has
all the equipment to fix tires, TPMS systems
and order the best replacement tire for your
vehicle.
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Starting and Driving
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If the warning light illuminates again even
after the tire pressures are adjusted, there
may be a tire puncture.
Refer to Vehicle with run-flat tires on
page 7-3.
Vehicles with Instant Mobility System
(IMS) emergency flat tire repair kit
If an emergency tire repair is needed,
repair the punctured tire with the
emergency flat tire repair kit (page 7-7).
CAUTION
Do not use non-genuine tire sealant.
It may damage the tire pressure
sensor.
Vehicles with optional temporary spare
tire
If you have bought the optional temporary
spare tire, replace the punctured tire with
the temporary spare tire. Refer to the
manufacturer's instructions.
Warning light flashes
When the warning light flashes, there may
be a system malfunction. Consult an
Authorized Mazda Dealer.
q Flat Tire Warning Light
This warning light illuminates for a few
seconds when the ignition is switched
ON.
Warning light illuminates/Warning
beep sounds
If the tire pressures decrease extremely
after the TPMS warning light has
illuminated, or if a tire is punctured, the
flat tire warning light also illuminates, and
a beep sound will be heard for
approximately 30 seconds.
Refer to Vehicle with run-flat tires on
page 7-3.
qSystem Error Activation
When the TPMS warning light flashes,
there may be a system malfunction.
Consult an Authorized Mazda Dealer.
A system error activation may occur in
the following cases:
lWhen there is equipment or a device
near the vehicle using the same radio
frequency as that of the tire pressure
sensors.
lWhen a metallic device such as a non-
genuine navigation system is equipped
near the center of the dashboard, which
may block radio signals from the tire
pressure sensor to the receiver unit.
lWhen using the following devices in
the vehicle that may cause radio
interference with the receiver unit.
lA digital device such as a personal
computer.
lA current converter device such as a
DC-AC converter.
lWhen excess snow or ice adheres to
the vehicle, especially around the
wheels.
lWhen the tire pressure sensor batteries
are exhausted.
lWhen using a wheel with no tire
pressure sensor installed.
lWhen using tires with steel wire
reinforcement in the side walls.
lWhen using tire chains.
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qTires and Wheels
CAUTION
When inspecting or adjusting the tire
air pressures, do not apply excessive
force to the stem part of the wheel
unit. The stem part could be
damaged.
Changing tires and wheels
The following procedure allows the
TPMS to recognize a tire pressure sensor's
unique ID signal code whenever tires or
wheels are changed, such as changing to
and from winter tires.
NOTE
Each tire pressure sensor has a unique ID
signal code. The signal code must be
registered with the TPMS before it can work.
The easiest way to do it is to have an
Authorized Mazda Dealer change your tire and
complete ID signal code registration.
When having tires changed at an
Authorized Mazda Dealer
When an Authorized Mazda Dealer
changes your vehicle's tires, they will
complete the tire pressure sensor ID signal
code registration.
When changing tires yourself
If you or someone else changes tires, you
or someone else can also undertake the
steps for the TPMS to complete the ID
signal code registration.
1. After tires have been changed, switch
the ignition ON, then back to ACC or
OFF.
2. Wait for about 15 minutes. 3. After about 15 minutes, drive the
vehicle at a speed of at least 25 km/h
(16 mph) for 10 minutes and the tire
pressure sensor ID signal code will be
registered automatically.
NOTE
If the vehicle is driven within about 15 minutes
of changing tires, the tire pressure monitoring
system warning light will flash because the
sensor ID signal code would not have been
registered. If this happens, park the vehicle for
about 15 minutes, after which the sensor ID
signal code will register upon driving the
vehicle for 10 minutes.
Replacing tires and wheels
CAUTION
Ø When replacing/repairing the tires
or wheels or both, have the work
done by an Authorized Mazda
Dealer, or the tire pressure sensors
may be damaged.
Ø The wheels equipped on your
Mazda are specially designed for
installation of the tire pressure
sensors. Do not use non-genuine
wheels, otherwise it may not be
possible to install the tire pressure
sensors.
Be sure to have the tire pressure sensors
installed whenever tires or wheels are
replaced.
When having a tire or wheel or both
replaced, the following types of tire
pressure sensor installations are possible.
lThe tire pressure sensor is removed
from the old wheel and installed to the
new one.
lThe same tire pressure sensor is used
with the same wheel. Only the tire is
replaced.
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Starting and Driving
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lA new tire pressure sensor is installed
to a new wheel.
NOTE
lThe tire pressure sensor ID signal code
must be registered when a new tire pressure
sensor is purchased. For purchase of a tire
pressure sensor and registration of the tire
pressure sensor ID signal code, consult an
Authorized Mazda Dealer.
lWhen reinstalling a previously removed tire
pressure sensor to a wheel, replace the
grommet (seal between valve body/sensor
and wheel) for the tire pressure sensor.
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