2003 HONDA CIVIC HYBRID engine

The three way catalytic converter
contains precious metals that serve
as catalysts, promoting chemical
reactions to convert the exhaust
gasses without af f ecting the metals.
The catalytic converter is ref erred to
as a three-way catalyst, since it acts
on HC, CO, and NOx. A replacement
unit must be an original Honda part
or its equivalent.
The three way catalytic converter
must operate at a high temperature
for the chemical reactions to take
place. It can set on f ire any com-
bustible materials that come near it.
Park your car away f rom high grass,
dry leaves, or other f lammables.A defective three way catalytic
converter contributes to air pollution,
and can impair your engine’s per-
f ormance. Follow these guidelines to
protect your car’s three way catalytic
converter.
Always use unleaded gasoline.
Even a small amount of leaded
gasoline can contaminate the
catalyst metals, making the three
way catalytic converter inef f ective. Keep the engine tuned-up.
Have your car diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
T echnical Inf ormation
Three Way Catalytic Converter
296
THREE WAY CATALYTIC CONVERTERS

CONT INUED
If you take your vehicle f or a state
emissions test shortly af ter the
battery has been disconnected or
gone dead, it may not pass the test.
This is because of certain ‘‘readiness
codes’’ that must be set in the on-
board diagnostics f or the emissions
systems. These codes are erased
when the battery is disconnected,
and set again only after several days
of driving under a variety of
conditions.If the testing f acility determines that
the readiness codes are not set, you
will be requested to return at a later
date to complete the test. If you must
get the vehicle re-tested within the
next two or three days, you can
condition the vehicle for re-testing
by doing the f ollowing.
Make sure the gas tank is nearly,
but not completely, f ull (around
3/4).
Make sure the vehicle has been
parked with the engine of f f or 8
hours or more.
Make sure the ambient
temperature is between 20° and
95°F. Without touching the accelerator
pedal, start the engine and let it
idle f or 20 seconds.
Keep the vehicle in Park
(automatic transmission) or
Neutral (manual transmission).
Increase the engine speed to 2,000
rpm and hold it there until the
temperature gauge rises to at least
1/4of thescale(approximately3
minutes).
T echnical Inf ormation
T esting of Readiness Codes
St at e Emissions T est ing
297

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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 vehicle.
Authorized Manuals
Service Manual:
Electrical T roubleshooting Manual:
Body Repair Manual:
304
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.

CONT INUED
...
Accessories and Modif ications . 152
................................
Accessories .152
.
Additional Safety Precautions . 153
............................
Modif ications .153
ACCESSORY (Ignition Key .......................................
Position) .87
.............
Accessory Power Socket . 103
....................
Additives, Engine Oil . 196
.............................
Airbag (SRS) .10, 48
.....................
Air Cleaner Element .211
..............
Air Conditioning System . 108
..............................
Maintenance .221
.........................................
Usage .110
.......................
Air Outlets (Vents) .108
.......................
Air Pressure, Tires .225
..................
High Speed Driving . 226
.........................
Normal Driving .226
.......................
Alcohol in Gasoline .292
......................................
Antif reeze .199
Anti-lock Brakes (ABS) ...............................
Indicator .62, 177
...................................
Operation .175
..............
Anti-thef t, Audio System . 137Anti-thef t Steering Column
..............................................
Lock .86
..........................
Appearance Care .245
................................
Audio System .118
........................
Auto Idle Stop .163, 171
.............................
Indicator .164, 172
...
Automatic Seat Belt Tensioners . 46
.............
Automatic Speed Control . 139
.
Automatic Transmission (CVT) . 166
..........................
Capacity, Fluid .288
...............
Checking Fluid Level . 206
.......................................
Shif ting .167
.
Shif t Lever Position Indicator . 166
................
Shif t Lever Positions . 167
....................
Shif t Lock Release . 170
Battery Charging System ...........................
Indicator .62, 272
............................
Jump Starting .265
.................................
Level Gauge .72
..............................
Maintenance .216
............................
Specif ications .289
..............................
Bef ore Driving .143 ....................................
Belts,Seat .8,45
...........................
Beverage Holder .102
.................................
Body Repairs .253
Brakes ...........
Anti-lock System (ABS) . 175
.............
Break-in, New Linings . 144
....................
Bulb Replacement .237
...........................................
Fluid .209
.......................................
Parking .100
.................
System Indicator . 62,275
........................
Wear Indicators .174
.............................
Braking System .174
........................
Break-in, New Car .144
..
Brightness Control, Instruments . 77
........................
Brights, Headlights .75
Index
A
B
I

Î
Bulb Replacement..........................
Back-up Lights .238
..............................
Brake Lights .237
..............................
Ceiling Light .241
................
Front Parking Lights . 235
........
Front Side Marker Lights . 235
.................................
Headlights .234
.........
High-mount Brake Light . 238
.................
License Plate Lights . 239
.........
Rear Side Marker Lights . 237
............................
Specif ications .289
...................................
Spotlights .242
...............................
Trunk Light .240
....................
Turn Signal Lights . 235
..............................
Bulbs, Halogen .234
............................
Capacities Chart .288
.............
Carbon Monoxide Hazard . 54
.............................
Carrying Cargo .154
Cassette Player ............................................
Care .136
...................................
Operation .133
..............
CAUTION, Explanation of . ii
...................................
CD Changer .129 .......................................
CD Player .127
..................................
Ceiling Light .104
........................
Certif ication Label .286
............................................
Chains .231
....................
Changing a Flat Tire .257
............
Changing Engine Coolant . 201
Changing Oil ........................................
How to .197
......................................
When to .186
....................
Charge/Assist Gauge .73
...
Charging System Indicator . 62,272
............
Checklist, Bef ore Driving . 160
.....................................
Child Saf ety .22
Child Seats ......
LATCH Anchorage System . 43
...........................
Lower Anchors .43
..........
Tether Anchorage Points . 42
..................
Childproof Door Locks . 92
....................
Cleaner Element, Air . 211
Cleaning ....................
Aluminum Wheels .248
......................................
Exterior .246
.......................................
Interior .249
...................................
Seat Belts .250
...........................................
Vinyl .250
....................................
Windows .251 .........................
Clock, Setting the .123
...................................
Clutch Fluid .210
........................
CO in the Exhaust .294
............
Cold Weather, Starting in . 161
..............................
Compact Spare .256
...............
Consumer Inf ormation . 300
Continuously Variable ................
Transmission (CVT) . 166
.............
Controls, Instruments and . 57
Coolant ........................................
Adding .199
....................................
Checking .149
.........................
Proper Solution .199
...................................
Replacing .201
...................
Temperature Gauge . 72
....................
Corrosion Protection .252
Crankcase Emissions Control ........................................
System .294
............
Cruise Control Operation . 139
.....................
Current Fuel Mileage .70
..........
Customer Relations Of f ice . 300
................
DANGER, Explanation of . ii
...................................
Dashboard .2, 58
Index
C
D
II

CONT INUED
................
Daytime Running Lights . 76
............
Def ects, Reporting Saf ety . 302
........................
Def og and Def rost .116
................
Def ogger, Rear Window . 81
..............
Def rosting the Windows . 116
....................................
Dimensions .288
...............
Dimming the Headlights . 75
Dipstick Automatic Transmission .....................................
(CVT) .206
..................................
Engine Oil .148
..........................
Directional Signals .78
........
Disc Brake Wear Indicators . 174
.....................
Disposal of Used Oil .198
Doors ..............
Locking and Unlocking . 87
......................
Power Door Locks .87
..........
DOT Tire Quality Grading . 290
Downshif ting, 5-speed Manual .............................
Transmission .162
.......................................
Drive Belt .224
...........
Driver and Passenger Safety . 5
...........................................
Driving .159
....................................
Economy .150
.........................
In Bad Weather .178
................
In Foreign Countries . 293..................
Dust and Pollen Filter . 222
............................
Fabric, Cleaning .250
...................................
Fan, Interior .113
Features, Comfort and ..............................
Convenience .107
....................
Filling the Fuel Tank . 145
Filters ................................
Air Cleaner .211
.........................
Dust and Pollen .222
...............................................
Oil .197
..............................
Economy, Fuel .150
............
Emergencies on the Road . 255
.............
Battery, Jump Starting . 265
...........
Brake System Indicator . 275
................
Changing a Flat Tire . 257
.....
Charging System Indicator . 272
..................
Checking the Fuses . 277
.....
Low Oil Pressure Indicator . 271
...
Malf unction Indicator Lamp . 273
..................
Overheated Engine . 268
.........................
Emergency Brake .100
......................
Emergency Flashers .80
......................
Emergency Towing .282
............
Emergency Trunk Opener . 93
.......................
Emissions Controls .294
.............
Emissions Testing, State . 297
Engine ....
Coolant Temperature Gauge . 71
...................................
Drive Belt .224
......
Engine Speed Limiter . 165,169
Malf unction Indicator ................................
Lamp .62, 273 ........
Oil Pressure Indicator . 62,271
..............
Oil, What Kind to Use . 195
...............................
Overheating .268
............................
Specif ications .288
.......................................
Starting .161
......................
Ethanol in Gasoline .292
.
Evaporative Emissions Controls . 294
...............................
Exhaust Fumes .54
Expectant Mothers, Use of Seat ........................................
Belts by .20
..................
Exterior, Cleaning the . 246
Index
E
F
III

.............
Halogen Headlight Bulbs . 234..............
Hazard Warning Flashers . 80
Headlights ........................................
Aiming .234
............
Daytime Running Lights . 76
..................
High Beam Indicator . 64
........................
Reminder Beeper .75
........
Replacing Halogen Bulbs . 234
...................................
Turning on .75
..............................
Head Restraints .96
.....................
Heating and Cooling .108
.............
High Altitude, Starting at . 161
.................
High-Low Beam Switch . 75
..............
High-mount Brake Light . 238
....................................
Hood Latch .212
.......................
Hood, Opening the .146
..................................................
Horn .74
...........................
Hydraulic Clutch .210
.................................
Hydroplaning .179
...
Identif ication Number, Vehicle . 286
Ignition ..............................................
Keys .83
...........................................
Switch .86
............
Timing Control System . 295
5-speed Manual Transmission
...............
Checking Fluid Level . 208
................................
Shif ting the .162
.............
Flashers, Hazard Warning . 80
...................
Flat Tire, Changing a . 257
Fluids Automatic Transmission .....................................
(CVT) .206
..........................................
Brake .209
.........................................
Clutch .210
..............
Manual Transmission . 208
..................
Windshield Washer . 205
FM Stereo Radio ...................................
Reception .125
.....
Foreign Countries, Driving in . 293
..........................
Four-way Flashers .80
............................
Front Airbags .10, 48
.................................................
Fuel .144
......................
Fill Door and Cap .145
...........................................
Gauge .71
................
Octane Requirement . 144
...............................
Oxygenated .292
........................
Reserve Indicator .65
........................
Tank, Filling the .145
.....................
Fuses, Checking the .276 ...............
Gas Mileage, Improving . 150
..........................................
Gasohol .292
.........................................
Gasoline .144
...............
Fuel Reserve Indicator . 65
...........................................
Gauge .71
................
Octane Requirement . 144
........................
Tank, Filling the .145
................
Gas Station Procedures . 145
Gauges ...
Engine Coolant Temperature . 71
...............................................
Fuel .71
...............................
Speedometer .69
.................................
Tachometer .69
Gearshif t Lever Positions Automatic Transmission .....................................
(CVT) .167
5-speed Manual .........................
Transmission .162
..............................
Glass Cleaning .251
......................................
Glove Box .101
Index
G
H I
IV

..............................
Paint Touch-up .248
..............
Panel Brightness Control . 77
........................
Park Gear Position .167 ...........................................
Parking .173
...............................
Parking Brake .100
Parking Brake and Brake System ...............................
Indicator .62, 275
.................................
Parking Lights .75
..
Parking Over Things that Burn . 296
.............................
PGM-FI System .295
..................
Polishing and Waxing . 247
............
Pre-Drive Saf ety Checklist . 12
.........
Pregnancy, Using Seat Belts . 20
............................
Protecting Adults .13
...
Additional Safety Precautions . 20
.....
Advice f or Pregnant Women . 20
........................
Protecting Children .22
.......................
Protecting Inf ants .31
.......
Protecting Larger Children . 38
.........
Protecting Small Children . 35
Using Child Seats with .....................................
Tethers .42
.............................
Using LATCH .43
...................
Radiator Overheating . 268
Radio/CD/Cassette ............................
Sound System .118 ...................
Readiness Codes . 274,297
Rear Lights, Bulb ......................
Replacement .237, 238
............................
Rear View Mirror .99
.................
Rear Window Def ogger . 81
...............
Reclining the Seat Backs . 94
.............................
Reminder Lights .59
.......................
Remote Transmitter .89
Replacement Inf ormation .................
Air Cleaner Element . 211
..............
Dust and Pollen Filter . 222
..........................
Engine Coolant .201
................
Engine Oil and Filter . 197
..........................................
Fuses .277
................................
Light Bulbs .234
....................................
Schedule .184
................................
Spark Plugs .213
...........................................
Tires .229
.............................
Wiper Blades .219
Replacing Seat Belts Af ter a ............................................
Crash .47
Reserve Tank, Engine ...............................
Coolant .149, 199
...............................
Restraint, Child .22
..................
Reverse Gear Position . 168
................................
Roof Antenna .247
...
Octane Requirement, Gasoline . 144
.........................................
Odometer .69
...............................
Odometer, Trip .69
Oil ........................
Change, How to .197
......................
Change, When to .186
......................
Checking Engine .148
..............
Pressure Indicator . 62,271
Selecting Proper Viscosity ......................................
Chart .196
...........
ON (Ignition Key Position) . 87
Onboard Ref ueling Vapor ....................................
Recovery .294
..
Operation in Foreign Countries . 293
..............................
Outside Mirrors .99
....................
Overheating, Engine .268
.......
Owner Maintenance Checks . 193
.........................
Oxygenated Fuels .292
Index
PR O
VI