2002 HONDA S2000 sensor

CONT INUED
Your Supplemental Restraint System
(SRS) includes:Two f ront airbags. The driver’s
airbag is stored in the center of
the steering wheel; the f ront
passenger’sairbagisstoredinthe
dashboard. Both are marked ‘‘SRS
AIRBAG.’’
Your Honda has automatic seat belt
tensioners f or added protection
during a moderate to severe frontal
collision.
If your airbags inf late, the tensioners
immediately tighten the f ront seat
belts to help hold the occupants in
place. The belts will remain tight
until you unbuckle them in the
normal way. If a seat belt is worn during a crash,
it must be replaced by the dealer. A
belt that has been worn during a
crash may not provide the same level
of protection in a subsequent crash.
The dealer should also inspect the
anchors f or damage and replace
them if needed.
For inf ormation on how to clean your
seat belts, see page . Automatic seat belt tensioners
that tighten the front seat belts
during a moderate to severe
f rontal collision.
Sensors that can detect a
moderate to severe frontal
collision.
A sophisticated electronic system
that continually monitors
inf ormation about the sensors, the
control unit, and the airbag
activators when the ignition is ON
(II).
214
Additional Inf ormation About Your SRS
Driver and Passenger Saf ety
SRS Components
A utomatic Seat Belt T ensioners
35

If you ever have a moderate to
severe f rontal collision, the sensors
will detect rapid deceleration and
signal the control unit to instantly
inflate the airbags and activate the
automatic seat belt tensioners.During a crash, your seat belt helps
restrain your lower body and torso,
while the tensioner tightens and
locks the seat belt to help keep you
in place. Your airbag provides a
cushion to help restrain and protect
your head and chest.
Since both airbags use the same
sensors, both airbags normally
inf late at the same time. However, it
is possible f or only one airbag to
inf late.
This can occur when the severity of
a collision is at the margin, or
threshold, that determines whether
or not the airbags will deploy. In
such cases, the seat belt will provide
suf f icient protection, and the
supplemental protection of f ered by
the airbag would be minimal.
An indicator light on the
instrument panel that alerts you to
a possible problem with the
system (see page ).
Emergency backup power in case
your car’s electrical system is
disconnected in a crash.
37
Additional Inf ormation About Your SRS
Driver and Passenger Saf ety How Your Airbags Work
36

Repair chips and scratches in the
paint as soon as you discover them.
Inspect and clean out the drain
holes in the bottom of the doors
and body.
Check the floor coverings for
dampness. Carpeting and f loor
mats may remain damp f or a long
time, especially in winter. This
dampness can eventually cause
the f loor panels to corrode.Use a high-pressure spray to clean
the underside of your car. This is
especially important in areas that
useroadsaltinwinter.Itisalsoa
good idea in humid climates and
areas subject to salt air. Be careful
of the ABS wheel sensors and
wiring at each wheel.
Have the corrosion-preventive
coatings on the underside of your
car inspected and repaired
periodically.
Many corrosion-preventive measures
are built into your Honda. You can
help keep your car f rom corroding
by perf orming some simple periodic
maintenance:
Corrosion Prot ect ion
Appearance Care
216

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 f ind
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 af f ect perf or-
mance and fuel mileage, and damage
its emissions controls. It will no
longer comply with U.S. and
Canadian 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
theoxygensensorsandthethree
way catalytic converter. These re-
placements are not covered under
warranty.T echnical Inf ormation
Driving in Foreign Countries
257

The PGM-FI System uses sequential
multiport f uel injection.
It has three subsystems: Air Intake,
Engine Control, and Fuel Control.
The Engine Control Module (ECM)
uses various sensors to determine
how much air is going into the
engine. It then controls how much
f uel to inject under all operating
conditions.This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
The emissions control systems are
covered by warranties separate f rom
the rest of your car. Read your
warranty manual f or more inf orma-
tion.
The exhaust emissions controls
include f our systems: PGM-FI,
Ignition Timing Control, Secondary
Air Injection System, and Three Way
Catalytic Converter. These four
systems work together to control the
engine’s combustion and minimize
the amount of HC, CO, and NOx that
comes out the tailpipe. The exhaust
emissions control systems are
separate f rom the crankcase and
evaporative emissions control
systems.
During engine warm-up, air is
pumped into the exhaust to reduce
emissions when the engine is cold.
The three way catalytic converter is
in the exhaust system. Through
chemical reactions, it converts HC,
CO, and NOx in the engine’s exhaust
to carbon dioxide (CO ), dinitrogen
(N ), and water vapor.The emissions control systems are
designed and certif ied 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 Honda replacement parts or
their equivalent f or repairs. Using
lower quality parts may increase the
emissions f rom your car.
2
2
Exhaust Emissions Controls
Replacement Parts
PGM-FI Syst emIgnit ion T iming Cont rol Syst em
Secondary A ir Inject ion Syst em
Three Way Catalytic Converter
Emissions Cont rols
T echnical Inf ormation 259