2003 HONDA PILOT ignition

If something electrical in your
vehicle stops working, the first thing
youshouldcheckforisablownfuse.
Determine f rom the chart on pagesand , or the diagram on the
f use box lid (the diagram f or the
driver’s side interior f use box is on
the kick panel below the f use box),
which f use or f uses 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.
The secondary f use box is in the
engine compartment next to the
battery.
The primary under-hood f use box is
locatedonthepassenger’ssideof
the engine compartment. To open it,
pushthetabsasshown.
1.
2.356 357
CONT INUED
Checking and Replacing Fuses
Fuses
T aking Care of t he Unexpect ed353
UNDER-HOOD
UNDER-HOOD

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 . 360
................................
Specif ications .362
..........
DOT Tire Quality Grading . 364
Unif orm Tire Quality ..................................
Grading .364
.................................
Treadwear .364
......................................
Traction .364
.............................
Temperature .365 .........................
Oxygenated Fuels .366
......
Driving in Foreign Countries . 367
.......................
Emissions Controls .368
.....................
The Clean Air Act .368
Crankcase Emissions Control ....................................
System .368
Evaporative Emissions Control ....................................
System .368
Onboard Ref ueling Vapor ................................
Recovery .368
...
Exhaust Emissions Controls . 369
....................
PGM-FI System .369
Ignition Timing Control ................................
System .369
Exhaust Gas Recirculation ...................
(EGR) System . 369
Three Way Catalytic ...........................
Converter .369
....................
Replacement Parts . 369
..
Three Way Catalytic Converter . 370
..............
State Emissions Testing . 371
....
Testing of Readiness Codes . 371
T echnical Inf ormat ion
T echnical Inf ormation359

The exhaust emissions controls
include f our systems: PGM-FI,
Ignition Timing Control, Exhaust
Gas Recirculation 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.The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual f or more informa-
tion.
The PGM-FI System uses sequential
multiport f uel injection.
It has three subsystems: Air Intake,
Engine Control, and Fuel Control.
The Powertrain Control Module
(PCM) uses various sensors to
determine how much air is going
into the engine. It then controls how
much f uel to inject under all operat-
ing conditions. This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO and NOx produced.
The Exhaust Gas Recirculation
(EGR) system takes some of the
exhaust gas and routes it back into
the intake manif old. Adding exhaust
gas to the air/f uel mixture reduces
the amount of NOx produced when
the f uel is burned.
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 vehicle.
2
2
Exhaust Emissions Controls Replacement Parts
PGM-FI Syst emIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
T echnical Inf ormation
Emissions Cont rols
369

CONT INUED
...
Accessories and Modif ications . 223
................................
Accessories .223
...
Additional Safety Precaution . 224
............................
Modif ications .224
ACCESSORY (Ignition Key .......................................
Position) .82
............
Accessory Power Sockets . 110
....................
Additives, Engine Oil . 284
...............................
Airbag (SRS) .9, 50
.....................
Air Cleaner Element .297
......
Air Conditioning System . 118,130
..............................
Maintenance .306
.....................
Rear A/C Control .135
.................................
Usage .118, 130
...............
Air Outlets (Vents) . 120,128
.......................
Air Pressure, Tires .308
.......................
Alcohol in Gasoline .366
.......
Aluminum Wheels, Cleaning . 327
......................................
Antif reeze .287
Anti-lock Brakes (ABS) ....................
Indicator Light .63, 243
...................................
Operation .242
..............
Anti-thef t, Audio System . 153
.
Anti-thef t Steering Column Lock . 81..........................
Appearance Care .325
................
Audio System . 137,153,168
...
Automatic Seat Belt Tensioners . 48
...
Automatic Lighting Off Feature . 73
.............
Automatic Speed Control . 207
..............
Automatic Transmission . 233
..........................
Capacity, Fluid .362
...............
Checking Fluid Level . 293
.......................................
Shif ting .234
.
Shif t Lever Position Indicator . 233
................
Shif t Lever Positions . 234
....................
Shif t Lock Release . 236
Battery Charging System ...........................
Indicator .62, 348
............................
Jump Starting .343
..............................
Maintenance .302
............................
Specif ications .363
..............................
Bef ore Driving .215
....................................
Belts,Seat .8,46
.........................
Beverage Holders .105
.................................
Body Repairs .332 Brakes
...........
Anti-lock System (ABS) . 242
.............
Break-in, New Linings . 216
...........................................
Fluid .295
....................
Bulb Replacement .320
.......................................
Parking .104
.................
System Indicator . 63,351
........................
Wear Indicators .241
.............................
Braking System .241
.................
Break-in, New Vehicle . 216
..
Brightness Control, Instruments . 73
........................
Brights, Headlights .72
Bulb Replacement ..........................
Back-up Lights .321
..............................
Brake Lights .320
......................
Cargo Area Light .323
................
Front Parking Lights . 318
........
Front Side Marker Lights . 319
.................................
Headlights .317
..............
Individual Map Lights . 322
...................
License Plate Light . 321
.................................
Rear Bulbs .320
............................
Specif ications .363
............
Turn Signal Lights . 318,320
..............................
Bulbs, Halogen .317
Index
A
B
I

...............
Gas Mileage, Improving . 222
..........................................
Gasohol .366
.........................................
Gasoline .216
...............
Fuel Reserve Indicator . 65
...........................................
Gauge .68
................
Octane Requirement . 216
........................
Tank, Filling the .217
................
Gas Station Procedures . 217
Gauges ...
Engine Coolant Temperature . 68
...............................................
Fuel .68
...............................
Speedometer .67
.................................
Tachometer .67
GAWR (Gross Axle Weight .......................................
Rating) .248
GCWR (Gross Combined Weight .......................................
Rating) .248
............
Gearshif t Lever Positions . 234
..............................
Glass Cleaning .330
........................................
Glove Box .88
GVWR (Gross Vehicle Weight .......................................
Rating) .248 .............
Halogen Headlight Bulbs . 317
..............
Hazard Warning Flashers . 76
........................................
Headlights .72
........................................
Aiming .317
..............
Automatic Lighting Off . 73
............
Daytime Running Lights . 73
..................
High Beam Indicator . 65
...........
High Beams, Turning on . 72
............
Low Beams, Turning on . 72
.........................
Reminder Chime .72
........
Replacing Halogen Bulbs . 317
...................................
Turning on .72
..............................
Head Restraints .93
...............................
Heated Mirror .104
.....................
Heating and Cooling .118
.............
High Altitude, Starting at . 232
.................
High-Low Beam Switch . 72
HomeLink Universal ...............................
Transmitter .210
....................................
Hood Latch .298
.......................
Hood, Opening the .218
..................................................
Horn .71
.................................
Hydroplaning .246 ...
Identif ication Number, Vehicle . 360
Ignition ..............................................
Keys .79
...........................................
Switch .81
............
Timing Control System . 369
........................
Immobilizer System .80
.........
Important Safety Precautions . 6
.........
Indicators, Instrument Panel . 61
..................
Individual Map Lights . 114
.........................
Inf ant Restraint .26, 30
................................
Inf ant Seats .26, 30
...................
Inf lation, Proper Tire . 308
.................................
Inside Mirror .102
.............................
Inspection, Tire .310
........................
Instrument Panel .2 ,60
........
Instrument Panel Brightness . 73
...........................
Interior Cleaning .328
...............................
Interior Lights .112
........................................
Introduction .i
.................
Jacking up the Vehicle . 338
.......................................
Jack, Tire .335
Index
GHI
J
IV

CONT INUED
..................................................
Keys .79
..................................
Maintenance .269
...
Owner Maintenance Checks . 281
.................................
Record .279-280
......................
Required Indicator .69
..........................................
Saf ety .270
.............................
Schedule .274-276
.
Malf unction Indicator Lamp . 62,349
..............
Manual Seat Adjustments . 91
...............................
Meters, Gauges .67
...................
Methanol in Gasoline . 366
........................
Mirrors, Adjusting .103
...................
Neutral Gear Position . 235
..................
New Vehicle Break-in . 216
...................
NOTICE, Explanation of . i
...............
Numbers, Identif ication . 360..............................
Paint Touch-up .327
..............
Panel Brightness Control . 73
........................
Park Gear Position .234
................................
Jump Starting .343
.......................
Label, Certif ication .360
.................
Lane Change, Signaling . 74
..................
Lap/Shoulder Belts . 15,46
....................
Light Control Switch .112
.............................................
Lights .315
....................
Bulb Replacement .317
.......................................
Indicator .61
.......................................
Interior .112
.........................................
Parking .72
..................................
Turn Signal .74
....................................
Load Limits .226
......
LOCK (Ignition Key Position) . 81
Locks .......
Anti-thef t Steering Column . 81
............................
Fuel Fill Door .217
....................................
Glove Box .88
....................
Lockout Prevention . 83
.................................
Power Door .82 ........................
Low Coolant Level .221
.........................
Low Fuel Indicator .65
...
Low Oil Pressure Indicator . 62,347
...
Lubricant Specif ications Chart . 362
.........................................
Luggage .225 ...
Octane Requirement, Gasoline . 216
.........................................
Odometer .67
...............................
Odometer, Trip .67
Oil ........................
Change, How to .285
..............
Change, When to . 274,276
......................
Checking Engine .220
..............
Pressure Indicator . 62,347
Selecting Proper Viscosity ......................................
Chart .284
...........
ON (Ignition Key Position) . 82
..
Operation in Foreign Countries . 367
............................
Outside Mirrors .102
....................
Overheating, Engine .345
.......
Owner Maintenance Checks . 281
.........................
Oxygenated Fuels .366
Index
L K
N MO
P
V

Î
CONT INUED
.....................................
Tachometer .67
......
Taillights, Changing Bulbs in . 320
.
Taking Care of the Unexpected . 333
...................
Tape Player . 149,160,178
Technical Descriptions ......
DOT Tire Quality Grading . 364
.....
Emissions Control Systems . 368
.....................
Oxygenated Fuels .366
Three Way Catalytic ...............................
Converter .370
.......................
Temperature Gauge .68
...................
Tensioners, Seat Belts . 48
........
Testing of Readiness Codes . 371
............................
Thef t Protection .189
..
Three Way Catalytic Converter . 370
....................................
Timing Belt .308
.................................................
Seats .89
............
Folding the Second Seat . 94
...............
Folding the Third Seat . 95
..........................
Head Restraints .93
.........
Reclining the Second Seat . 92
............
Reclining the Third Seat . 92
........................
Rear Seat Access .94
...............................
Serial Number .360
...........................
Service Intervals .272
...........................
Service Manual .377
.........
Service Station Procedures . 217
Shif ting the Automatic .............................
Transmission .234
.....
Shif t Lever Position Indicator . 233
........................
Shif t Lock Release .236
Side Marker Lights, Bulb .........................
Replacement in .319
...............................
Signaling Turns .74
.....................................
Snow Tires .314
...................
Solvent-type Cleaners . 326
................
Sound System . 137,153,168
Spare Tire ......................................
Inf lating .334
............................
Specif ications .363
....................................
Spark Plugs .301
....................
Specif ications Charts . 362................................
Speed Control .207
...................................
Speedometer .67
..........
SRS, Additional Inf ormation . 50
...
Additional Safety Precautions . 55
..
How the SRS Indicator Works . 53
How Your Front Airbags .........................................
Work .50
...
How Your Side Airbags Work . 52
........................
SRS Components .50
..................................
SRS Service .55
.............................
SRS Indicator .53 ,62
....
START (Ignition Key Position) . 82
.......................
Starting the Engine .232
In Cold Weather at High ..................................
Altitude .232
................
With a Dead Battery . 343
..............
State Emissions Testing . 371
........
Steam Coming f rom Engine . 345
Steering Wheel ..................................
Adjustment .78
.............
Anti-theft Column Lock . 81
...
Stereo Sound System . 137,153,168
....................
Storing Your Vehicle .324
........................
Sunglasses Holder .108
........................................
Sun Visor .109 Supplemental Restraint System
......................................
Servicing .55
.........................
SRS Indicator .53 ,62
...................
System Components . 50
..................................
Synthetic Oil .284
Index
T
VII