1999 HONDA CIVIC COUPE sensor

Additional Information About Your SRS
SRS Components

Your Supplemental Restraint System (SRS) includes: Two front airbags. The driver's
airbag is stored in the center of
the steering wheel; the front
passenger's airbag is stored in the dashboard. Both are marked "SRS
AIRBAG." Sensors that can detect a
moderate to severe frontal
collision. A sophisticated electronic system
that continually monitors thesensors, control unit, the airbag
activators, and all related wiring
when the ignition is ON (II). An indicator light on the
instrument panel that alerts you to
a possible problem with thesystem (see page 47). Emergency backup power in case
your car's electrical system is disconnected in a crash. How Your Airbags Work
If you ever have a moderate tosevere frontal collision, the sensors
will detect rapid deceleration and signal the control unit to instantly
inflate the airbags.
During a crash, your seat belt helps
restrain your lower body and torso.
Your airbag provides a cushion to help restrain and protect your headand chest.
Driver and Passenger Safety
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Additional Information About Your SRS

Since both airbags use the samesensors, both airbags normally
inflate at the same time. However, it
is possible for only one airbag to
inflate.
This can occur when the severity of a collision is at the margin, or
threshold, that determines whetheror not the airbags will deploy. In
such cases, the seat belt will provide
sufficient protection, and the
supplemental protection offered by
the airbag would be minimal.
After inflating, the airbagsimmediately deflate, so they won't
interfere with the driver's visibility,
or the ability to steer or operate
other controls.
The total time for inflation and deflation is approximately one-tenth
of a second, so fast that most
occupants are not aware that the
airbags deployed until they see them
lying in their laps. After a crash, you may see what
looks like smoke. This is actuallypowder from the airbag's surface.
Although the powder is not harmful, people with respiratory problems
may experience some temporarydiscomfort. If this occurs, get out of
the car as soon as it is safe to do so.

U.S. Owners

For additional information on how
your airbags work, see the booklet

titled SRS: What You Need to Know About Airbags that came with your
owner's manual.

Canadian Owners

For additional information on how
your airbags work, ask your dealer for a copy of the booklet titled SRS:
What You Need to Know About Airbags.

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Corrosion Protection, Body Repairs

Inspect and clean out the drain
holes in the bottom of the doors and body.
Check the floor coverings for
dampness. Carpeting and floor
mats may remain damp for a long
time, especially in winter. This dampness can eventually cause
the floor panels to corrode.
Use a high-pressure spray to clean
the underside of your car. This is especially important in areas that
use road salt in winter. It is also a
good idea in humid climates and
areas subject to salt air. Cars
equipped with ABS have a sensor and wiring at each wheel. Be
careful not to damage them.
Have the corrosion-preventive
coatings on the underside of your
car inspected and repaired
periodically. Body Repairs

Body repairs can affect your car's
resistance to corrosion. If your car
needs repairs after a collision, pay
close attention to the parts used in
the repair and the quality of the
work.
Make sure the repair facility usesGenuine Honda replacement body
parts. Some companies make sheet metal pieces that seem to duplicate
the original Honda body parts, but
are actually inferior in fit, finish, and
corrosion resistance. Once installed,
they do not give the same high-quality appearance.
When reporting your collision to the
insurance company, tell them you
want Genuine Honda parts used in the repair. Although most insurers
recognize the quality of originalparts, some may try to specify that
the repairs be done with other available parts. You should investi-
gate this before any repairs are

begun.

Take your car to your authorized Honda dealer for inspection after the
repairs are completed. Your dealer
can make sure that quality materials
were used, and that corrosion- preventive coatings were applied to
all repaired and replaced parts.

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Driving in Foreign Countries

Technical Information

If you are planning to take your
Honda outside the U.S. or Canada,
contact the tourist bureaus in the
areas you will be traveling in to find
out about the availability of unleaded
gasoline with the proper octane
rating.

If unleaded gasoline is not available,
be aware that using leaded gasoline in your Honda will affect perfor-
mance and fuel mileage, and damage
its emissions controls. It will no
longer comply with U.S. andCanadian emissions regulations, and
will be illegal to operate in North
America. To bring your car back into compliance will require the replace-
ment of several components, such as
the oxygen sensors and the three
way catalytic converter. These re- placements are not covered under
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Emissions Controls

Exhaust Emissions Controls
The exhaust emissions controls include three systems: PGM-FI,
Ignition Timing Control and Three
Way Catalytic Converter. These three systems work together tocontrol the engine's combustion and
minimize the amount of HC, CO, and
NOx that comes out the tailpipe. Theexhaust emissions control systems
are separate from the crankcase and
evaporative emissions control
systems.

PGM-FI System

The PGM-FI System uses sequential multiport fuel injection.
It has three subsystems: Air Intake,Engine Control, and Fuel Control.
The Engine Control Module (ECM)/ Powertrain Control Module (PCM)/
Transmission Control Module (TCM-HX model only) uses various
sensors to determine how much air
is going into the engine. It then controls how much fuel to inject under all operating conditions.
Ignition Timing Control System
This system constantly adjusts the ignition timing, reducing the amountof HC, CO and NOx produced.
Exhaust Gas Recirculation (EGR) System
Only on HX model

The Exhaust Gas Recirculation (EGR) system takes some of the
exhaust gas and routes it back into
the intake manifold. Adding exhaust
gas to the air/fuel mixture reduces
the amount of NOx produced when
the fuel is burned.
Three Way Catalytic Converter
The three way catalytic converter is in the exhaust system. Throughchemical reactions, it converts HC,
CO, and NOx in the engine's exhaust
to carbon dioxide (CO 2), dinitrogen
(N2), and water vapor. Replacement Parts
The emissions control systems are designed and certified to work to-
gether in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions remain low, you should use only new Genuine Acura replacement parts or
their equivalent for repairs. Using lower quality parts may increase the
emissions from your car.
The emissions control systems are covered by warranties separate from
the rest of your car. Read your
warranty manual for more informa- tion.

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