2003 HONDA S2000 check engine

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.

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) This manual describes the procedures involved in the
replacement of damaged body parts. This manual covers maintenance and recommended
procedures f or repair to engine and chassis components.
It is written f or the Journeyman mechanic, but is simple
enough f or most mechanically-inclined owners to under-
stand.
This manual complements the Service Manual by
providing in-depth troubleshooting inf ormation f or each
electrical circuit in your car.
Authorized Manuals
Service Manual:
Electrical T roubleshooting Manual:
Body Repair Manual:
268
NOTE: Dealers and Companies please provide dealer or company name,
and also the name of the person to whose attention the shipment should
be sent. For purchases outside U.S.A. please write to the address shown
below for a quotation.
P.O. BOX 07280·DETROIT, MICHIGAN 48207·1-800-782-4356
Customer Name Attention
Apartment Number
State & Zip Code
City
Daytime Telephone Number
Check or money order enclosed payable to Helm Inc U.S. funds only.
Do not send cash
Master
Card VISA
Check here if your billing address is different
from the shipping address shown above.
Account Number Expiration: Mo. Yr.
CUSTOMER SIGNATURE DATE
Street Address No P.O. Box Number
()
These Publications cannot be returned for credit without receiving advance authorization within 14
days of delivery. On returns, a restocking fee may be applied against the original order.

..............................
Economy, Fuel .125
............
Emergencies on the Road . 217
.............
Battery, Jump Starting . 226
................
Changing a Flat Tire . 219
.....
Charging System Indicator . 233
..................
Checking the Fuses . 239
Changing Oil
........................................
How to .163
......................................
When to .150
....................
Changing a Flat Tire .219
............
Changing Engine Coolant . 167
...
Charging System Indicator . 46,233
...............
Check Engine Light . 47,234
............
Checklist, Bef ore Driving . 134
.....................................
Child Saf ety .18
.......................................
Child Seats .22
...................................
Cleaner, Air .176
.........................................
Cleaning .207
....................
Aluminum Wheels .210
...................................
Carpeting .211
......................................
Exterior .208
.................................
Floor Mats .211
.......................................
Interior .211
.......................................
Leather .212
...................................
Seat Belts .212
...........................................
Vinyl .212
....................................
Windows .213
...................................
Clutch Fluid .175
........................
CO in the Exhaust .257
............
Cold Weather, Starting in . 136
......................
Compact Spare Tire .218
.............
Controls, Instruments and . 43..............................
Convertible Top .72
...............
Convertible Top Cover . 77
..
Lowering the Convertible Top . 72
................................
Maintenance .78
.....
Raising the Convertible Top . 75
Coolant ........................................
Adding .165
....................................
Checking .124
.........................
Proper Solution .165
...................
Temperature Gauge . 49
....................
Corrosion Protection .213
Crankcase Emission Control ........................................
System .257
............
Cruise Control Operation . 115
Customer Relations ................................
Inf ormation .264
................
DANGER, Explanation of . ii
.......................................
Dashboard .44
................
Daytime Running Lights . 54
............
Def ects, Reporting Saf ety . 266
................
Def rosting the Windows . 91
....................................
Dimensions .250
...............
Dimming the Headlights . 53Dipstick
..................................
Engine Oil .123
..........................
Directional Signals .55
........
Disc Brake Wear Indicators . 140
.....................
Disposal of Used Oil .164
...................
Do Not Tow a Trailer . 145
Doors ..............
Locking and Unlocking . 62
..............................
Monitor Light .47
......................
Power Door Locks .62
..........
DOT Tire Quality Grading . 252
Downshif ting, 6-speed Manual .............................
Transmission .138
...........................................
Driving .133
....................................
Economy .125
.........................
In Bad Weather .144
................
In Foreign Countries . 256
Index
D
E
II

CONT INUED
...
Closing the Convertible Top . 237
.....
Low Oil Pressure Indicator . 232
...
Malf unction Indicator Lamp . 234
..................
Overheated Engine . 229
...........................
Emergency Brake .81
......................
Emergency Flashers .80
............
Emergency Trunk Opener . 67
.......................
Emissions Controls .257
.............
Emissions Testing, State . 260
Engine ...........
Check Engine Light . 47,234
Compartment, Checking ......................................
in the .122
.......................................
Coolant .124
....
Coolant Temperature Gauge . 49
...................................
Drive Belt .188
Malf unction Indicator ................................
Lamp .47, 234
........
Oil Pressure Indicator . 46,232
..............
Oil, What Kind to Use . 161
...............................
Overheating .229
............................
Specif ications .250
............................
Speed Limiter .138
.......................................
Starting .135
.........
Engine Cover, Opening the . 122
......................
Ethanol in Gasoline .255 ...
Evaporative Emission Controls . 257
...............................
Exhaust Fumes .40
Expectant Mothers, Use of Seat ........................................
Belts by .17
..................
Exterior, Cleaning the . 208
............................
Fabric, Cleaning .212
.....................................
Fan, Interior .86
Features, Comfort and ................................
Convenience .85
....................
Filling the Fuel Tank . 121
Filters ...............................................
Oil .163
.............
Flashers, Hazard Warning . 80
...................
Flat Tire, Changing a . 219
Fluids ..........................................
Brake .174
.........................................
Clutch .175
..............
Manual Transmission . 172
..................
Windshield Washer . 171
........
FM Stereo Radio Reception . 103
.....
Foreign Countries, Driving in . 256
..........................
Four-way Flashers .80 .................................................
Fuel .120
......................
Fill Door and Cap .121
...........................................
Gauge .50
................
Octane Requirement . 120
...............................
Oxygenated .255
........................
Reserve Indicator .48
........................
Tank, Filling the .121
..............
Fuel Mileage, Improving . 125
..............
Fuel Station Procedures . 121
.....................
Fuses, Checking the .239
..........................................
Gasohol .255
.........................................
Gasoline .120
...............
Fuel Reserve Indicator . 48
...........................................
Gauge .50
................
Octane Requirement . 120
.....................
Oxygenated Fuels .255
........................
Tank, Filling the .121
Index
F
G
III

CONT INUED
.........................
Low Fuel Indicator .48
...
Low Oil Pressure Indicator . 46,232
...
Lubricant Specif ications Chart . 250
.........................................
Luggage .128
..................
New Vehicle Break-in . 120
.....................
Normal Shif t Speeds .138
..................
NOTICE, Explanation of . ii
...............
Numbers, Identif ication . 248
..................................
Maintenance .147
...
Owner Maintenance Checks . 159
........................................
Record .157
....................................
Schedule .150
..
Maintenance Required Indicator . 51
.
Malf unction Indicator Lamp . 47,234
...................
Manual Transmission . 137
........
Manual Transmission Fluid . 172
...............................
Meters, Gauges .49
...................
Methanol in Gasoline . 255
..........................
Mirrors, Adjusting .80 ...
Octane Requirement, Gasoline . 120
.........................................
Odometer .50
...............................
Odometer, Trip .51
Oil ........................
Change, How to .163
......................
Change, When to .150
......................
Checking Engine .123
..............
Pressure Indicator . 46,232
Selecting Proper Viscosity ......................................
Chart .162
...........
ON (Ignition Key Position) . 61
.........................
Opening the Trunk .66
..
Operation in Foreign Countries . 256
..............................
Outside Mirrors .80
....................
Overheating, Engine .229
.........................
Oxygenated Fuels .255
..............................
Paint Touch-up .210
..............
Panel Brightness Control . 54
.................................
Parking Brake .81
.................................
Parking Lights .53
.............................
PGM-FI System .258 ..................
Polishing and Waxing . 209
Power ..................................
Door Locks .62
..............
Engine, Specif ications . 250
.........................................
Mirrors .80
......................................
Windows .70
.........
Pregnancy, Using Seat Belts . 17
............................
Protecting Adults .12
...
Additional Safety Precautions . 18
.....
Advice f or Pregnant Women . 17
........................
Protecting Children .18
.......
Protecting Larger Children . 29
.........
Protecting Small Children . 26
...................
Radiator Overheating . 229
.......................
Radio Sound System .94
...................
Readiness Codes . 235,260
..
Rear Lights, Bulb Replacement . 202
............................
Rear View Mirror .80
................
Reclining the Seat-backs . 69
.......
Recommended Shif t Speeds . 138
Index
M
N O
P
R
V

Recovery Vehicle, Emergency.......................................
Towing .245
.............................
Reminder Lights .45
.......................
Remote Transmitter .63
Replacement Inf ormation ................................
Air Cleaner .176
..........................
Engine Coolant .167
................
Engine Oil and Filter . 163
..........................................
Fuses .239
................................
Light Bulbs .198
....................................
Schedule .150
................................
Spark Plugs .178
...........................................
Tires .193
.............................
Wiper Blades .184
Replacing Seat Belts Af ter a ............................................
Crash .34
...............................
Restraint, Child .19
................................
Rotation, Tire .192
........................................
Saf ety Belts .8
............
Safety Defects, Reporting . 266
.............
Saf ety Labels, Location of . 41
...............................
Saf ety Messages .ii ...........................................
Seat Belts .8
...............
Additional Information . 33
.....
Advice f or Pregnant Women . 17
.....................................
Cleaning .212
......................
Lap/Shoulder Belt .33
................................
Maintenance .34
......
Reminder Light and Beeper . 46
...................
System Components . 33
...............
Use During Pregnancy . 17
........................
Seats, Adjusting the .69
...............................
Serial Number .248
...........................
Service Intervals .150
.............................
Service Manual .267
.........
Service Station Procedures . 121
Shif ting The 6-speed Manual .........................
Transmission .137
Side Marker Lights, Bulb .........................
Replacement in .200
...............................
Signaling Turns .55
6-speed Manual Transmission ...............
Checking Fluid Level . 172
................................
Shif ting the .137
.....................................
Snow Tires .195
...................
Solvent-type Cleaners . 208
..................................
Sound System .94 Spare Tire
......................................
Inf lating .218
............................
Specif ications .251
................
Spark Plugs, Replacing . 178
....................
Specif ications Charts . 250
................................
Speed Control .115
...................................
Speedometer .49
..........
SRS, Additional Inf ormation . 36
...
Additional Safety Precautions . 39
How the Automatic Seat Belt ....................
Tensioners Work .34
How the SRS Indicator .......................................
Works .38
...........
How Your Airbags Work . 36
........................
SRS Components .36
..................................
SRS Service .39
..................
SRS Indicator Light . 38,47
.......................
Starting the Engine .135
In Cold Weather at High ..................................
Altitude .136
................
With a Dead Battery . 226
..............
State Emissions Testing . 260
........
Steam Coming f rom Engine . 229
Steering Wheel .............
Anti-theft Column Lock . 60
.....................
Stereo Sound System .94
Index
S
VI