2003 HONDA S2000 ignition

This indicator comes on f or a f ew
seconds when you turn the ignition
switch ON (II). If it comes on at any
other time, it indicates one of the
engine’s emissions control systems
may have a problem. Even though
you may f eel no dif f erence in your
car’s perf ormance, it can reduce
your f uel economy and cause your
car to put out excessive emissions.
Continued operation may cause
serious damage.If you have recently ref ueled your
car, the cause of this indicator
coming on could be a loose or
missing f uel f ill cap. Check the cap
and tighten it until it clicks several
times. Replace the f uel f ill cap if it is
missing. Tightening the cap will not
make the indicator turn of f
immediately; it takes three driving
trips.
If the indicator remains on past three
driving trips, or the f uel cap was not
loose or missing, have the car
checked by the dealer as soon as
possible. Drive moderately until the
dealer has inspected the problem.
Avoid full-throttle acceleration and
driving at high speed.
Youshouldalsohavethedealer
inspect your car if this indicator
comes on repeatedly, even though it
may turn of f as you continue driving.
Malf unction Indicator L amp
T aking Care of t he Unexpect ed234
MALFUNCTION INDICATOR LAMP
If you keep driving with the
malf unction indicator lamp on, you can
damage your car’s emissions controls
and engine. Those repairs may not be
covered by your car’s warranties.

If it comes on at any other time, it
indicates a problem with the car’s
brake system. In most cases, the
problem is a low f luid level in the
brake f luid reservoir. Press lightly on
the brake pedal to see if it f eels
normal. If it does, check the brake
f luid level the next time you stop at a
service station (see page ). If the
fluid level is low, take the car to your
dealer and have the brake system
inspected f or leaks or worn brake
pads.
However, if the brake pedal does not
f eel normal, you should take
immediate action. Because of the
brake system’s dual-circuit design, a
problem in one part of the system
will still give you braking at two
wheels. You will f eel the brake pedal
go down much f arther bef ore the car
begins to slow down, and you will
have to press harder on the pedal.
The distance needed to stop will be
much longer.
The Brake System Indicator
normallycomesonwhenyouturn
the ignition switch ON (II). It is a
reminder to check the parking brake.
It comes on and stays lit if you do not
f ully release the parking brake. Slow down by shif ting to a lower
gear, and pull to the side of the road
when it is saf e. Because of the
longer distance needed to stop, it is
hazardous to drive the car. You
should have it towed, and repaired as
soon as possible. (See
on page .)
If you must drive the car a short
distance in this condition, drive
slowly and cautiously.
174
245
Brake System Indicator
T aking Care of t he Unexpect ed
Emergency
Towing
236
BRAKE SYSTEM INDICATOR

The auxiliary f use box is located on
thedriver’ssidenearthebrakefluid
reservoir. To open it, push the tab on
each side and remove the lid.If something electrical in your car
stops working, the f irst thing you
should check f or is a blown f use.
Determine f rom the chart on pages
and , or the diagram on the
fuse box lid, which fuse or fuses
control that component. Check those
f uses f irst, but check all the f uses
bef ore deciding that a blown f use is
not the cause. Replace any blown
f uses and check the component’s
operation.
Turn the ignition switch to LOCK
(0). Make sure the headlights and
all other accessories are off.
Remove the cover f rom the f use
box. Check each of the large f uses in
the under-hood f use box by
looking through the top at the wire
inside. Removing these f uses
requires a Phillips-head screw-
driver.
1.
2. 3.
241 242
CONT INUED
Checking and Replacing Fuses
Fuses
T aking Care of t he Unexpect ed239
BLOWN

µ
µ
µ
µ
µ
Î
Î
No. Amps.
Amps.
No. Circuits Protected
CONT INUED
Circuits Protected
14
15
16
17
18
19
20
21
22
23
24
25
26
2710 A
10 A
7.5 A
7.5 A 10 A
15 A
7.5 A
7.5 A
7.5 A 20 A
20 A
7.5 A
15 A
10 A
20 A
7.5 A 15 A
7.5 A
15 A
7.5 A 15 A
10 A
1
2
3
4
5
6
7
8
9
10
11
12
13 Daytime Running Lights
Keyless Entry
Back-up
Interior Light
Small Lights
Radio
Starter Signal
Heater Control,
Cooling Fan Relay
Power Mirrors
Right Power Window
Lef t Power Window
Not used
Not used
Not used
Windshield Wiper,
Auto Stop Signal
Washer Motor
Not used
Not used
Accessory Socket
Windshield Wiper
Turn signal Light
ACG
Instrument Light, Back-up
Lights
Ignition Coil
Engine Start
Fuel Pump, SRS
SRS
: Canadian Model
Fuses
T aking Care of t he Unexpect ed241
I IN NT TE
ER
RI IOOR R F
FUUS SEE B
BOOX X

Thediagramsinthissectiongive
you the dimensions and capacities of
your Honda, and the locations of the
identif ication numbers. It also
includes inf ormation you should
know about your vehicle’s tires and
emissions control systems.................
Identif ication Numbers . 248
................................
Specif ications .250
DOT Tire Quality Grading ......................
(U.S. Vehicles) .252
.................................
Treadwear .252
......................................
Traction .252
.............................
Temperature .253
...........................
Tire Inf ormation .254 .........................
Oxygenated Fuels .255
......
Driving in Foreign Countries . 256
.......................
Emissions Controls .257
.....................
The Clean Air Act .257
Crankcase Emissions Control ....................................
System .257
Evaporative Emissions Control ....................................
System .257
...
Exhaust Emissions Controls . 258
....................
PGM-FI System .258
Ignition Timing Control ................................
System .258
Secondary Air Injection ................................
System .258
Three Way Catalytic ...........................
Converter .258
....................
Replacement Parts . 258
..
Three Way Catalytic Converter . 259
..............
State Emissions Testing . 260
T echnical Inf ormat ion
T echnical Inf ormation247

This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
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
lowerqualitypartsmayincreasethe
emissions f rom your car.
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. The emissions control systems are
covered by warranties separate from
the rest of your car. Read your
warranty manual f or more informa-
tion.
The Onboard Ref ueling Vapor
Recovery (ORVR) system captures
the f uel vapors during ref ueling. The
vapors are adsorbed in a canister
f illed with activated carbon. While
driving, the f uel vapors are drawn
into the engine and burned of f .
2
2
Exhaust Emissions Controls Replacement Parts
Onboard Ref ueling Vapor
Recovery
PGM-FI Syst em Ignit ion T iming Cont rol Syst em
Secondary A ir Inject ion Syst emThree Way Catalytic Converter
Emissions Cont rols
T echnical Inf ormation258

CONT INUED
............................
Capacities Chart .250
.............
Carbon Monoxide Hazard . 40
............................
Cargo, Carrying .128
..............
CAUTION, Explanation of . ii
...................................
CD Changer .108
.......................................
CD Player .105
........................
Certif ication Label .248
............................................
Chains .195
........
Back-up Lamp Replacement . 202
Battery Charging System ...........................
Indicator .46, 233
............................
Jump Starting .226
..............................
Maintenance .181
............................
Specif ications .251
..............................
Bef ore Driving .119
..........................................
Belts, Seat .8
.............................
Beverage Holder .82
...................................
Body Repair .215
............................................
Brakes .140
...........
Anti-lock System (ABS) . 141
.............
Break-in, New Linings . 120
....................
Bulb Replacement .202
...........................................
Fluid .174
.........................................
Parking .81
.................
System Indicator . 46,236
..............
Wear Indicators, Disc . 140
.............................
Braking System .140
........................
Break-in, New Car .120 ..
Brightness Control, Instruments . 54
........................
Brights, Headlights .53
.........................
Bulb Replacement .198
..........................
Back-up Lights .202
..............................
Brake Lights .202
.................................
Headlights .198
.................
License Plate Lights . 204
..................
Side Marker Lights . 200
............................
Specif ications .251
....................
Turn Signal Lights . 200
..............................
Bulbs, Halogen .198
Accessories
.................................
Installation .126
...............
Accessory Power Socket . 82
ACCESSORY (Ignition Key .......................................
Position) .61
....................
Additives, Engine Oil . 162
.....................................
Airbag (SRS) .9
.....................
Air Cleaner Element .176
..............................
Air Conditioning .86
..............................
Maintenance .186
............................................
Usage .86
.........................
Air Outlets (Vents) .88
.......................
Air Pressure, Tires .189
...........................
Alarm, Anti-theft .114
.......................
Alcohol in Gasoline .255
.......
Aluminum Wheels, Cleaning . 210
......................................
Antif reeze .165
Anti-lock Brakes (ABS) ....................
Indicator Light .47, 143
...................................
Operation .141
.
Anti-thef t Steering Column Lock . 60
..........................
Anti-thef t System .114
..........................
Appearance Care .207
......................................
Audio Panel .82 ..................................
Audio System .94
.............
Automatic Speed Control . 115
Index
B
A
C
I

..................................................
Keys .58
.............................................
Gauges .49
...
Engine Coolant Temperature . 49
...............................................
Fuel .50
...............................
Speedometer .49
.................................
Tachometer .49
Gearshif t Lever Positions 6-speed Manual .........................
Transmission .137
..............................
Glass Cleaning .213
.............
Halogen Headlight Bulbs . 198
..............
Hazard Warning Flashers . 80
Headlights ............
Daytime Running Lights . 54
..................
High Beam Indicator . 48
...........................
Reminder Tone .53
........
Replacing Halogen Bulbs . 198
...................................
Turning on .53
.........
Heating and Cooling System . 86
.............
High Altitude, Starting at . 136
.................
High-Low Beam Switch . 53
................
High Speed, Shif ting at . 138
....................................
Hood Latch .178
.......................
Hood, Opening the .122 ...........................
Hydraulic Clutch .175
.................................
Hydroplaning .145
.......................
Jacking Up the Car .220
.......................................
Jack, Tire .219 ................................
Jump Starting .226
Identif ication Number, .......................................
Vehicle .248
Ignition ..............................................
Keys .58
...........................................
Switch .60
............
Timing Control System . 258
Indicator Lights, Instrument .............................................
Panel .45
...................
Inf lation, Proper Tire . 189
...................................
Inside Mirror .80
.............................
Inspection, Tire .191
............................
Instrument Panel .44
........
Instrument Panel Brightness . 54
...........................
Interior Cleaning .211
.................................
Interior Lights .83
........................................
Introduction .i .......................
Label, Certif ication .248
.................
Lane Change, Signaling . 55
........................
Lap/Shoulder Belts .33
.........................
Leather, Cleaning .212
Lights ....................
Bulb Replacement .198
.......................................
Indicator .45
..................................
Turn Signal .55
.....................................
Load Limit .129
...............................
Loading Cargo .128
......
LOCK (Ignition Key Position) . 60
Locks .......
Anti-thef t Steering Column . 60
............................
Fuel Fill Door .121
.................................
Power Door .62
...........................................
Trunk .66
........................
Low Coolant Level .124
...
Lower Gear, Downshif ting to a . 138
Index
H I
JK
L
IV