2012 HONDA CROSSTOUR engine

Î
ÎThe burning of gasoline in your
vehicle’s engine produces several by-
products. Some of these are carbon
monoxide (CO), oxides of nitrogen
(NOx), and hydrocarbons (HC).
Gasoline evaporating f rom the tank
also produces hydrocarbons. Con-
trolling the production of NOx, CO,
and HC is important to the environ-
ment. Under certain conditions of
sunlight and climate, NOx and HC
react to f orm photochemical ‘‘smog.’’
Carbon monoxide does not contri-
bute to smog creation, but it is a
poisonous gas. The United States Clean Air Act
sets standards f or automobile
emissions. It also requires that
automobile manufacturers explain to
owners how their emissions controls
workandwhattodotomaintain
them. This section summarizes how
the emissions controls work.
In Canada, Honda vehicles comply
with the Canadian emission
requirements, as specif ied in an
agreement with Environment
Canada, at the time they are
manuf actured.
Your vehicle has a positive
crankcase ventilation system. This
keeps gasses that build up in the
engine’s crankcase f rom going into
the atmosphere. The positive
crankcase ventilation valve routes
them from the crankcase back to the intake manif old. They are then
drawn into the engine and burned.
As gasoline evaporates in the f uel
tank, an evaporative emissions
control canister f illed with charcoal
adsorbs the vapor. It is stored in this
canister while the engine is of f . Af ter
the engine is started and warmed up,
the vapor is drawn into the engine
and burned during driving.
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 .
The Clean Air Act
Crankcase Emissions Control
System
Evaporative Emissions Control
System
Onboard Ref ueling Vapor
Recovery
Emissions Cont rols
410

Technical Inf ormation

2012 Crosstour

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.
The emissions control systems are
covered by warranties separate
from the rest of your vehicle.
Read your warranty manual for
more inf ormation.
The PGM-FI system uses sequential
multiport f uel injection.
It has three subsystems: air intake,
engine control, and f uel 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 operating
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 ), nitrogen
(N ), and water vapor.
The exhaust emissions controls
include f our systems: PGM-FI,
ignition timing control, exhaust gas
recirculation, and three way catalytic
converter. These f our systems work
together to control the engine’s
combustion and minimize the
amount of HC, CO, and NOx that
come out the tailpipe. The exhaust
emissions control systems are
separate f rom the crankcase and
evaporative emissions control
systems.
2
2
Exhaust Emissions Controls Replacement Parts
PGM-FI SystemIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculation (EGR) System
Three Way Catalytic Converter
Emissions Cont rols
411

Technical Inf ormation

2012 Crosstour

Keep the engine well maintained.
Have your vehicle diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
The three way catalytic converters
contain precious metals that serve as
catalysts, promoting chemical
reactions to convert the exhaust
gasses without af f ecting the metals.
The catalytic converters are ref erred
to as three-way catalysts, since they
act on HC, CO, and NOx.
Replacement units must be original
Honda parts or their equivalent.
The three way catalytic converters
must operate at a high temperature
for the chemical reactions to take
place. They can set on fire any
combustible materials that come
near them. Park your vehicle away
from high grass, dry leaves, or
other flammables. Defectivethreewaycatalytic
converters contribute to air pollution,
and can impair your engine’s
perf ormance. Follow these
guidelines to protect your vehicle’s
three way catalytic converters.
Always use unleaded gasoline.
Even a small amount of leaded
gasoline can contaminate the
catalyst metals, making the
three way catalytic converters
ineffective.
Three Way Catalytic Converters
412
THREE WAY CATALYTIC CONVERTERS

Technical Inf ormation

2012 Crosstour

Make sure the gas tank is nearly,
but not completely, f ull (around
3/4).Without touching the accelerator
pedal, start the engine, and let it
idle f or 20 seconds.
If you take your vehicle f or an
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 retested within the
next two or three days, you can
condition the vehicle f or retesting by
doing the f ollowing.
Make sure the vehicle has been
parked with the engine of f f or 6
hours or more.
Make sure the ambient
temperature is between 40° and
95°F (4° and 35°C). Keep the vehicle in Park. Increase
the engine speed to 2,000 rpm, and
hold it there until the temperature
gauge rises to at least 1/4 of the
scale (about 3 minutes).
Without touching the accelerator
pedal, let the engine idle f or 20
seconds.
1.
2.
3. 4.
5.
6.
CONT INUED
T esting of Readiness Codes
Emissions T esting
413

Technical Inf ormation

2012 Crosstour

If the testing f acility determines the
readiness codes are still not set, see
your dealer.Then drive in city/suburban
traffic for at least 10 minutes.
When traf f ic conditions allow, let
the vehicle coast f or several
seconds without using the
accelerator pedal or the brake
pedal.
Make sure the vehicle has been
parked with the engine of f f or 30
minutes.
Select a nearby lightly traveled
major highway where you can
maintain a speed of 50 to 60
mph (80 to 97 km/h) for at least
20 minutes. Drive on the
highway in D. Do not use the
cruise control. When traffic
allows, drive for 90
seconds without moving the
accelerator pedal. (Vehicle
speed may vary slightly;
this is okay.) If you cannot
do this for a continuous 90
seconds because of traffic
conditions, drive for at least 30
seconds, then repeat it two more
times (for a total of 90
seconds).
7.
8.
9.
Emissions T esting
414

Technical Inf ormation

2012 Crosstour

T he publications shown below can be purchased f rom Helm
Incorporated. You can order by phone or online:Call Helm Inc. at 1-800-782-4356 (credit card orders only)
Go online at
If you are interested in other years or models, contact Helm Inc.
at 1-800-782-4356.Covers maintenance and recommended procedures f or
repair to engine and chassis components. It is written
f or the journeyman mechanic, but it is simple enough
f or most mechanically inclined owners to understand.
Describes the procedures involved in the replacement
of damaged body parts.
Authorized Manuals
Purchasing Factory Authorized Manuals Service Manual:
Body Repair Manual:
(U.S. only)
Authorized Manuals
419
Publication
Form Number 61TP602
61TP631
31TP6620
31TP6820
31TP6M20 31TP6Q20 HON-R Form Description
2010-2012 Crosstour V6 Service Manual
2010-2012 Crosstour L4/V6 Body Repair Manual 2012 Crosstour Owner’s Manual
2012 Crosstour Navigation System Owner’s Manual 2012 Crosstour Honda Service History
2012 Crosstour Technology Reference Guide Order Form for Previous Years-
Indicate Year and Model Desired
www.helminc.com


2012 Crosstour

CONT INUED
....................................
Accessories .292
ACCESSORY ...............
(Ignition Key Position) . 79
............
Accessory Power Sockets . 114
..................
Active Head Restraints . 96
....................
Additives, Engine Oil . 334
...........................
Advanced Airbags .25
...............................
Airbag (SRS) .9, 21
..........
Airbag System Components . 21
..............
Air Conditioning System . 126
.........................................
Usage .127
.......................
Air Pressure, Tires .359
......................................
Antif reeze .337
Anti-lock Brakes (ABS) ...............................
Indicator .58, 309
...................................
Operation .309
..............
Anti-thef t, Audio System . 239
.
Anti-thef t Steering Column Lock . 79
..............................
Audio Antenna .355
................................
Audio System .134
.....
Auto Door Locking/Unlocking . 81
...
Automatic Seat Belt Tensioners . 19
.............
Automatic Speed Control . 246..............
Automatic Transmission . 302
..........................
Capacity, Fluid .402
.......................................
Shif ting .302
Shif t Lever Position ...............................
Indicators .302
................
Shif t Lever Positions . 302
....................
Shif t Lock Release . 305
......................
Auxiliary Input Jack .236
Battery Charging System ...........................
Indicator .56, 386
............................
Jump Starting .382
..............................
Maintenance .367
............................
Specif ications .403
..............................
Bef ore Driving . 281
....................................
Belts,Seat .8,18
.........................
Beverage Holders .114
........
HandsFreeLink. 253
..................................
Booster Seats .48
Brakes ...........
Anti-lock System (ABS) . 309
.............
Break-in, New Linings . 282
....................
Bulb Replacement .349 ...........................................
Fluid .342
.......................................
Parking .112
.................
System Indicator . 57,388
........................
Wear Indicators .308
.............................
Braking System .308
.................
Break-in, New Vehicle . 282
..
Brightness Control, Instruments . 73
Bulb Replacement ..........................
Back-up Lights .349
..............................
Brake Lights .349
.................................
Fog Lights .351
................
Front Parking Lights . 347
.................................
Headlights .344
................................
Rear Lights .349
............................
Specif ications .403
............
Turn Signal Lights . 347,349
......................
Bulbs, Halogen .344, 351
............................
Capacities Chart .402
.............
Carbon Monoxide Hazard . 51
..........................
Cargo Area Light .122
.............................
Carrying Cargo .294Bluetooth
Index
A
BC
I


2012 Crosstour

Î
.............
CAUTION, Explanation of . iii
.........................................
CD Care .233
..........................
CD Changer .149, 197
..................................
Ceiling Light .121
........................
Certif ication Label .400
............................................
Chains .365
....................
Changing a Flat Tire .373
Changing Oil ........................................
How to .335
......................................
When to .325
...
Charging System Indicator . 56,386
............
Check Fuel Cap Message . 285
............
Checklist, Bef ore Driving . 300
.....................................
Child Saf ety .33
..............................
Booster Seats .48
.............................
Child Seats .40, 41
Important Saf ety ..........................
Reminders .33-50
..........................................
Inf ants .38
..........................
Larger Children .47
.........................................
LATCH .42
......................
Risks with Airbags .34
.............................
Small Children .39
..........................................
Tether .46
...........................
Warning Labels .52
..........
Where Should a Child Sit . 34.......................................
Child Seats .33
.........................................
LATCH .42
..........
Tether Anchorage Points . 46
..................
Childproof Door Locks . 87
................
Cleaning the Seat Belts . 353
...............
Climate Control System . 126
..............................................
Clock .238
..................
CO in the Exhaust . 51,412
............
Cold Weather, Starting in . 301
..............................
Compact Spare .372
.........................................
Compass .242
.................
Console Compartment . 115
.................
Consumer Inf ormation . 416
.............
Controls, Instruments and . 53
Coolant ........................................
Adding .337
....................................
Checking .288
.........................
Proper Solution .337
...................
Temperature Gauge . 66
............................
Courtesy Lights .122
Crankcase Emissions Control ........................................
System .410
................
Cruise Control Indicator . 62
............
Cruise Control Operation . 246
.........................
Customer Service .416 ...............
DANGER, Explanation of . iii
...................................
Dashboard .3, 54
..........
Daytime Running Lights . 61,72
Daytime Running Lights .......................................
Indicator .61
.................................
Dead Battery .382
............
Def ects, Reporting Saf ety . 418
................
Def ogger, Rear Window . 75
..............
Def rosting the Windows . 130
....................................
Dimensions .402
...............
Dimming the Headlights . 70
Dipstick ..........
Automatic Transmission . 340
..................................
Engine Oil .288
..........................
Directional Signals .70
........
Disc Brake Wear Indicators . 308
.....................
Disposal of Used Oil .336
Doors ..........................
Auto Door Lock .81
.......................
Auto Door Unlock .84
..............
Childproof Door Locks . 87
..............
Locking and Unlocking . 80
........
DOT Tire Quality Grading . 404
...........
Driver and Passenger Safety . 5
Index
D
II


2012 Crosstour