2003 HONDA ODYSSEY sensor

Theclimatecontrolsystemhastwo
sensors. A sunlight sensor is located
in the top of the dashboard and a
temperature sensor is next to the
steering column. Do not cover the
sensors or spill any liquid on them. Sunlight Sensor/T emperature
Sensor
Climat e Cont rol Syst em
Comf ort and Convenience Feat ures165
SUNLIGHT SENSORTEMPERATURE SENSOR

Covering the outside edge of a
f ront seat-back, with a non-Honda
seat cover for example, could
prevent the airbag from inflating
properly.If a side airbag
inflates,acupholderorotherhard
object attached on or near the
door could be propelled inside the
vehicle and hurt someone.
This could make the driver’s seat
position sensor and the f ront
passenger’s weight sensors
inef f ective.
Some examples are:
Lowering the vehicle with an
aftermarket suspension kit that
signif icantly reduces ground
clearance can allow the
undercarriage to impact speed
bumps or other raised objects,
which could cause the airbags to
deploy.
Raising the vehicle with an
af termarket suspension kit can
af f ect the handling and stability.
Af termarket wheels, because they
are a universal design, can cause
excessive stress on suspension
components. Larger or smaller wheels and tires
can interf ere with the operation of
your vehicle’s anti-lock brakes and
other systems.
Do not modif y your steering wheel
or any other part of your
Supplemental Restraint System.
Modif ications could make the
system inef f ective.
Any object
attached to or placed on the covers
marked ‘‘SRS AIRBAG,’’ in the
center of the steering wheel and
on top of the dashboard, could
interf ere with the proper operation
of the airbags. Or, if the airbags
inf late, the objects could be
propelled inside the vehicle and
hurt someone.
If you plan to modif y your vehicle,
consult with your Honda dealer.
Removing parts f rom your vehicle,
or replacing components with non-
Honda (af termarket) components
could seriously af f ect your vehicle’s
handling, stability, and reliability. Modif ications
Additional Saf ety Precautions
A ccessories and Modif ications
Bef ore Driving
Do not place any object s over t heoutsideedgeof afront seat-back.
Do not at t ach hard object s on or
near a f ront door.
Do not modif y t he f ront seat s.
Do not at t ach or place object s on
the f ront airbag covers.
252

Two f actors normally contribute to
causing corrosion in your vehicle:Moisture trapped in body cavities.
Dirtandroadsaltthatcollectsin
hollows on the underside of the
vehicle stays damp, promoting
corrosion in that area.
Removal of paint and protective
coatings f rom the exterior and
underside of the vehicle. Repair chips and scratches in the
paint as soon as you discover them.
Many corrosion-preventive measures
are built into your Honda. You can
help keep your vehicle f rom
corroding by perf orming some
simple periodic maintenance:
Inspect and clean out the drain
holes in the bottom of the doors
and body.
Check the f loor coverings f or
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 vehicle. This
is especially important in areas
that use road salt in winter. It is
also a good idea in humid climates
and areas subject to salt air. Be
caref ul of the ABS wheel sensors
and wiring at each wheel.
Have the corrosion-preventive
coatings on the underside of your
vehicle inspected and repaired
periodically.
1.
2.
Corrosion Prot ect ion
Appearance Care349

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 vehicle back
into compliance will require the re-
placement of several components,
such as the oxygen sensors and the
three way catalytic converter. These
replacements are not covered under
warranty.
T echnical Inf ormation
Driving in Foreign Countries
391

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
Honda replacement parts or their
equivalent f or repairs. Using lower
qualitypartsmayincreasethe
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
393

ÎÎ
CONT INUED
................
Remote Audio Controls . 199
.............................
Remote Control .223
.......................
Remote Transmitter .94
Removing the Second ...........................................
Seats .119
Replacement Inf ormation .................
Air Cleaner Element . 311
..........................
Engine Coolant .303
................
Engine Oil and Filter . 299
..........................................
Fuses .375
................................
Light Bulbs .332
....................................
Schedule .286
................................
Spark Plugs .313
................................
Timing Belt .323
...........................................
Tires .327
.............................
Wiper Blades .319
Replacing Seat Belts Af ter a ............................................
Crash .53
Reserve Tank, .................
Engine Coolant . 249,301
..................
Reverse Gear Position . 262
................................
Rotation, Tire .326
..................................
Saf ety Belts .8, 50 .........
Safety Defects, Reporting . 400
.................................
Saf ety Features .7
.........................................
Airbags .10
..................................
Door Locks .11
..........................
Head Restraints .11
.......................................
Seat Belts .8
.....................
Seats & Seat-Backs .11
.............
Saf ety Labels, Location of . 67
...............................
Saf ety Messages .ii
.....................................
Seat Belts .8, 50
...............
Additional Information . 50
Automatic Seat Belt ...............................
Tensioners .52
.....................................
Cleaning .347
......................
Lap/Shoulder Belt .50
................................
Maintenance .53
Reminder Light and ................................
Beeper .50, 73
................................
Replacement .53
...................
System Components . 50
...............
Use During Pregnancy . 22
...
Wearing a Lap/Shoulder Belt . 17
..................................
Seat Heaters .123
...............................................
Seats .109
..............................
Adjustments .110
..........
Drivers Lumbar Support . 114 .............
Folding the Third Seat . 120
........................
Head Restraints .115
.....
Manual Height Adjustment . 112
....................
Passenger Seating .109
.......
Reclining the Second Seat . 111
..........
Reclining the Third Seat . 111
....
Removing the Second Seats . 119
.....................
Third Seat Access .116
............................
Security System .234
Sensors Front Passenger’s Weight .....................................
Sensors .57
....
Driver’s Seat Position Sensor . 56
...............................
Serial Number .384
...........................
Service Intervals .288
...........................
Service Manual .401
.........
Service Station Procedures . 245
..........................
Setting the Clock .130
.....
Shif t Lever Position Indicator . 260
........................
Shif t Lock Release .263
..............................
Side Airbags .10, 59
..........................
Cutoff Indicator .60
Side Marker Lights, Bulb ..............................
Replacement .333
Index
S
VII