ECU NISSAN X-TRAIL 2006 Service Manual

INSTALLING THE SPARE TIREThe spare tire is designed for emergency
use. See specific instructions under the
heading “Wheels and tires” in the “8. Main-
tenance and do-it-yourself” section of this
manual.
1. Clean any mud or dirt from the surface
between the wheel and hub.
2. Carefully put the spare tire on and tighten the
wheel nuts with your fingers.
3. With the wheel nut wrench, tighten wheel
nuts alternately and evenly until they are tight.4. Lower the vehicle slowly until the tire touches
the ground. Then, with the wheel nut wrench,
tighten the wheel nuts securely in the se-
quence illustrated (
1,2,3,4,5).
Lower the vehicle completely.
WARNING

Incorrect wheel nuts or improperly
tightened wheel nuts can cause the
wheel to become loose or come off.
This could cause an accident.

Do not use oil or grease on the wheel
studs or nuts. This could cause the
nuts to become loose.
Retighten the wheel nuts after the vehicle
has been driven for 1,000 km (600 miles)
(also in cases of a flat tire, etc.).
As soon as possible, tighten the wheel
nuts to the specified torque with a torque
wrench.
Wheel nut tightening torque:
108 N⋅m (11 kg-m, 80 ft-lb)
The wheel nuts must be kept tightened to
specification at all times. It is recom-mended that wheel nuts be tightened to
specification at each lubrication interval.
Adjust tire pressure to the COLD pressure.
COLD pressure:
After vehicle has been parked for three
hours or more or driven less than 1.6 km (1
mile).
COLD tire pressures are shown on the Tire
and Loading Information label affixed to
the driver side center pillar.
5. Securely store the flat tire and jacking equip-
ment in the vehicle.
6. Close the floor cover.
WARNING

Always make sure that the spare tire
and jacking equipment are properly
secured after use. Such items can
become dangerous projectiles in an
accident or sudden stop.

The spare tire is designed for emer-
gency use. See specific instructions
under the heading “Wheels and tires”
SCE0039
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TOWING RECOMMENDED BY
NISSAN
Two-Wheel drive modelsNISSAN recommends that your vehicle be
towed with the driving (front) wheels off the
ground or place the vehicle on a flatbed truck as
illustrated.
CAUTION

Never tow automatic transmission
models with the front wheels on theground or four wheels on the ground
(forward or backward) as this may
cause serious and expensive damage
to the transmission.
If it is necessary to tow the vehicle
with the rear wheels raised, always
use towing dollies under the front
wheels.

When towing automatic transmission
models with the front wheels on tow-
ing dollies:•Turn the ignition key to the OFF
position, and secure the steering
wheel in a straight ahead position
with a rope or similar device.
Never secure the steering wheel
by turning the ignition key to the
LOCK position. This may damage
the steering lock mechanism.
•Move the selector lever to the N
(Neutral) position.

When towing Two-Wheel drive auto-
matic transmission model with the
rear wheels on the ground (if you do
not use towing dollies): Always re-
lease the parking brake.
SCE0495
Two-Wheel drive models
In case of emergency
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Your new NISSAN has been designed to have
minimum maintenance requirements with longer
service intervals to save you both time and
money. However, some day-to-day and regular
maintenance is essential to maintain your
NISSAN’s good mechanical condition, as well
as its emission and engine performance.
It is the owner’s responsibility to make sure that
scheduled maintenance, as well as general
maintenance, is performed.
As the vehicle owner, you are the only one who
can ensure that your vehicle receives the proper
maintenance care. You are a vital link in the
maintenance chain.SCHEDULED MAINTENANCEFor your convenience, both required and op-
tional scheduled maintenance items are de-
scribed and listed in your “Service and Mainte-
nance Guide”. You must refer to that guide to
ensure that necessary maintenance is performed
on your NISSAN at regular intervals.GENERAL MAINTENANCEGeneral maintenance includes those items
which should be checked during normal day-to-
day operation. They are essential for proper
vehicle operation. It is your responsibility toperform these procedures regularly as pre-
scribed.
Performing general maintenance checks require
minimal mechanical skill and only a few general
automotive tools.
These checks or inspections can be done by
yourself, a qualified technician or, if you prefer, a
NISSAN dealer.
WHERE TO GO FOR SERVICEIf maintenance service is required or your vehicle
appears to malfunction, have the systems
checked and tuned by a NISSAN dealer.
NISSAN technicians are well-trained specialists
and are kept up to date with the latest service
information through technical bulletins, service
tips, and in-dealership training programs. They
are completely qualified to work on NISSAN
vehiclesbeforethey work on your vehicle,
rather than after they have worked on it.
You can be confident that a NISSAN dealer’s
service department performs the best job to
meet the maintenance requirements of your ve-
hicle — in a reliable and economic way.During the normal day-to-day operation of the
vehicle, general maintenance should be per-
formed regularly as prescribed in this section. If
you detect any unusual sounds, vibrations or
smell, be sure to check for the cause or have a
NISSAN dealer check it promptly. In addition,
you should notify a NISSAN dealer if you think
that repairs are required.
When performing any checks or maintenance
work, closely observe the “Maintenance precau-
tions” later in this section.
EXPLANATION OF GENERAL
MAINTENANCE ITEMSAdditional information on the following
items with “*” is found later in this section.Outside the vehicleThe maintenance items listed here should be
performed from time to time, unless otherwise
specified.
Doors and engine hood:
Check that all doors and the engine hood oper-
ate smoothly. Also make sure that all latches lock
securely. Lubricate if necessary. Make sure that
the secondary latch keeps the hood from open-
ing when the primary latch is released.
When driving in areas using road salt or other
MAINTENANCE REQUIREMENTS GENERAL MAINTENANCE8-2
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corrosive materials, check lubrication frequently.
Lights*:
Clean the headlights on a regular basis. Make
sure that the headlights, stop lights, tail lights,
turn signal lights, and other lights are all operat-
ing properly and installed securely. Also check
headlight aim.
Road wheel nuts (lug nuts)*:
When checking the tires, make sure no wheel
nuts are missing, and check for any loose wheel
nuts. Tighten if necessary.
Tire rotation*:
Tires should be rotated every 7,500 miles
(12,000 km). However, the timing for tire rotation
may vary according to your driving habits and
road surface conditions.
Tires*:
Check the pressure with a gauge often and
always prior to long distance trips. If necessary,
adjust the pressure in all tires, including the
spare, to the pressure specified. Check carefully
for damage, cuts or excessive wear.
Tire, wheel alignment and balance:
If the vehicle should pull to either side while
driving on a straight and level road, or if you
detect uneven or abnormal tire wear, there maybe a need for wheel alignment.
If the steering wheel or seat vibrates at normal
highway speeds, wheel balancing may be
needed.
For additional information regarding tires, refer to
“Tire Safety Information” in the Warranty Infor-
mation Booklet (Canada).
Windshield:
Clean the windshield on a regular basis. Check
the windshield at least every six months for
cracks or other damage. Have a damaged wind-
shield repaired by a qualified repair facility.
Windshield wiper blades*:
Check for cracks or wear if they do not wipe
properly.
Inside the vehicleThe maintenance items listed here should be
checked on a regular basis, such as when
performing periodic maintenance, cleaning the
vehicle, etc.
Accelerator pedal:
Check the pedal for smooth operation and make
sure the pedal does not catch or require uneven
effort. Keep the floor mats away from the pedal.Brake pedal and booster*:
Check the pedal for smooth operation and make
sure it has the proper distance under it when
depressed fully. Check the brake booster func-
tion. Be sure to keep floor mats away from the
pedal.
Brakes:
Check that the brakes do not pull the vehicle to
one side when applied.
Parking brake*:
Check that the lever has the proper travel and
make sure that the vehicle is held securely on a
fairly steep hill when only the parking brake is
applied.
Seat belts:
Check that all parts of the seat belt system (for
example, buckles, anchors, adjusters and retrac-
tors) operate properly and smoothly, and are
installed securely. Check the belt webbing for
cuts, fraying, wear or damage.
Seats:
Check seat position controls such as seat ad-
justers, seatback recliner, etc. to ensure they
operate smoothly and that all latches lock se-
curely in every position. Check that the head
restraints move up and down smoothly and that
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the locks hold securely in all latched positions.
Steering wheel:
Check for changes in the steering conditions,
such as excessive free play, hard steering or
strange noises.
Warning lights and chimes:
Make sure that all warning lights and chimes are
operating properly.
Windshield defroster:
Check that the air comes out of the defroster
outlets properly and in good quantity when
operating the heater or air conditioner.
Windshield wiper and washer*:
Check that the wipers and washer operate
properly and that the wipers do not streak.Under the hood and the vehicleThe maintenance items listed here should be
checked periodically (for example, each time you
check the engine oil or refuel).
Battery*:
Check the fluid level in each cell. It should be
between the upper level and lower level lines.
Vehicles operated in high temperatures or under
severe conditions require frequent checks of the
battery fluid level.Brake and clutch fluid level*:
Make sure that the brake and clutch fluid level is
between the MAX and MIN lines on the reservoir.
Engine coolant level*:
Check the coolant level when the engine is cold.
Engine drive belts*:
Make sure that no belt is frayed, worn, cracked
or oily.
Engine oil level*:
Check the level on the dipstick after parking the
vehicle on a level spot and turning off the engine.
Exhaust system:
Make sure there are no loose supports, cracks or
holes. If the sound of the exhaust seems unusual
or there is a smell of exhaust fumes, immediately
locate the trouble and correct it. (See “Precau-
tions when starting and driving” in the “5. Start-
ing and driving” section for exhaust gas (carbon
monoxide).)
Fluid leaks:
Check under the vehicle for fuel, oil, water or
other fluid leaks after the vehicle has been
parked for a while. Water dripping from the air
conditioner after use is normal. If you should
notice any leaks or if gasoline fumes are evident,check for the cause and have it corrected imme-
diately.
Power steering fluid level* and lines:
Check the level in the reservoir tank with the
engine off. Check the lines for proper attach-
ment, leaks, cracks, etc.
Radiator and hoses:
Check the front of the radiator and clean off any
dirt, insects, leaves, etc., that may have accumu-
lated. Make sure the hoses have no cracks,
deformation, deterioration or loose connections.
Underbody:
The underbody is frequently exposed to corro-
sive substances such as those used on icy roads
or to control dust. It is very important to remove
these substances, otherwise rust will form on the
floor pan, frame, fuel lines and around the ex-
haust system. At the end of winter, the under-
body should be thoroughly flushed with plain
water, being careful to clean those areas where
mud and dirt may accumulate. For additional
information, see “Cleaning exterior” in the “7.
Appearance and care” section.
Windshield washer fluid*:
Check that there is adequate fluid in the tank.8-4
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MAINTENANCE PRECAUTIONSWhen performing any inspection or maintenance
work on your vehicle, always take care to prevent
serious accidental injury to yourself or damage to
the vehicle. The following are general precau-
tions which should be closely observed.
WARNING

Park the vehicle on a level surface,
apply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. For a manual
transmission, move the shift lever to
the N(Neutral) position. For an auto-
matic transmission, move the selec-
tor lever to the P (Park) position.

Be sure the ignition key is in the OFF
or LOCK position when performing
any parts replacement or repairs.

Your vehicle is equipped with an au-
tomatic engine cooling fan. It may
come on at any time without warning,
even if the ignition key is in the OFF
position and the engine is not run-
ning. To avoid injury, always discon-nect the negative battery cable be-
fore working near the fan.

If you must work with the engine
running, keep your hands, clothing,
hair and tools away from moving
fans, belts and any other moving
parts.

It is advisable to secure or remove
any loose clothing and any jewelry,
such as rings, watches, etc. before
working on your vehicle.

Always wear eye protection when-
ever you work on your vehicle.

If you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases to escape.

Never get under the vehicle while it is
supported only by a jack. If it is nec-
essary to work under the vehicle,
support it with safety stands.

Keep smoking materials, flame and
sparks away from fuel and the
battery.
On gasoline engine models with the
Multiport Fuel Injection (MFI) Sys-
tem, the fuel filter or fuel lines should
be serviced by a NISSAN dealer be-
cause the fuel lines are under high
pressure even when the engine is off.
CAUTION

Do not work under the hood while
the engine is hot. Turn off the engine
and wait until it cools down.

Never connect or disconnect either
the battery or any transistorized
component connector while the igni-
tion key is on.

Never leave any engine or automatic
transmission related component har-
ness connectors disconnected while
the ignition key is on.

Avoid direct contact with used engine
oil and coolant. Improperly disposed
engine oil, engine coolant and/or
other vehicle fluids can hurt the envi-
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requires coolant, have it checked by a
NISSAN dealer.
CHANGING ENGINE COOLANT
Major cooling system repairs should be per-
formed by a NISSAN dealer. The service
procedures can be found in the appropriate
NISSAN Service Manual.

Improper servicing can result in reduced
heater performance and engine overheating.
WARNING

To avoid being scalded, never change
the coolant when the engine is hot.
Never remove the radiator cap when
the engine is hot. Serious burns
could be caused by high pressure
fluid escaping from the radiator.

Avoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner
as soon as possible.

Keep coolant out of reach of children
and pets.
1. Open radiator drain valve
Aat the bottom of
radiator, and remove radiator filler cap
B.

Be careful not to allow coolant to con-
tact drive belts.

Waste coolant must be disposed of
properly. Check your local regulations.
2. Close the radiator drain valve securely after
the coolant is drained.
3. Fill the radiator slowly with the proper mixture
of antifreeze solution and demineralized
water/distilled water. Fill the reservoir tank up
to the MAX level. Then install the radiator filler
cap.
SDI1080D
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CHANGING ENGINE OILChange the engine oil and filter according to the
maintenance log shown in the Service and Main-
tenance Guide.
1. Park the vehicle on a level surface and apply
the parking brake.
2. Run the engine until it reaches operating
temperature.
3. Turn the engine off andwait more than 10
minutes.
4. Place a large drain pan under the drain plug
1.5. Remove the oil filler cap
2.
6. Remove the drain plug
1with a wrench and
completely drain the oil.
If oil filter is to be changed, remove and
replace it at this time. See later in this section
for changing engine oil filter.
WARNING
Be careful not to burn yourself, as the
engine oil is hot.

Waste oil must be disposed of properly.

Check your local regulations.
7. Clean and re-install the drain plug
1
with a
new washer. Securely tighten the drain plug
with a wrench.
Drain plug tightening torque:
29 to 39 N⋅m (3.0 to 4.0 kg-m, 22 to 29
ft-lb)
Do not use excessive force.
8. Refill engine with recommended oil and in-
stall the cap securely.
CAUTION
Never pull out the oil level gauge while
filling engine oil.
See “Capacities and recommended
fuel/lubricants” in the “9. Technical and con-
sumer information” section for drain and refill
capacity. The drain and refill capacity de-
pends on the oil temperature and drain time.
Use these specifications for reference only.
Always use the dipstick to determine the
proper amount of oil in the engine.
9. Start the engine.
Check for leakage around the drain plug.
Correct as required.
10. Turn the engine off andwait more than 10
minutes. Check the oil level with the dip-
stick. Add engine oil if necessary.
11. Dispose of waste oil properly.
WARNING

Prolonged and repeated contact with
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Keep the battery surface clean and dry. Any
corrosion should be washed off with a solu-
tion of baking soda and water.

Make certain the terminal connections are
clean and securely tightened.

If the vehicle is not to be used for 30 days or
longer, disconnect the (—) negative battery
terminal cable to prevent discharging it.
WARNING

Do not expose the battery to flames
or electrical sparks. Hydrogen gas
generated by battery action is explo-
sive. Do not allow battery fluid to
contact your skin, eyes, fabrics, or
painted surfaces. After touching a
battery or battery cap, do not touch
or rub your eyes. Thoroughly wash
your hands. If the acid contacts your
eyes, skin or clothing, immediately
flush with water for at least 15 min-
utes and seek medical attention.

Battery posts, terminals and related
accessories contain lead and leadcompounds. Wash hands after han-
dling.

Do not operate the vehicle if the fluid
in the battery is low. Low battery fluid
can cause a higher load on the bat-
tery which can generate heat, reduce
battery life, and in some cases lead
to an explosion.

When working on or near a battery,
always wear suitable eye protection
and remove all jewelry.

Keep the battery out of the reach of
children.
Check the fluid level in each cell. It should be
between the UPPER LEVEL
1
and LOWER
LEVEL
2
lines.
If the side of the battery is not visible, the
electrolyte level can be checked through each
filler opening as illustrated.
If it is necessary to add fluid, add only distilled
water to bring the level to the indicator in each
filler opening.Do not overfill.
Vehicles operated in high temperatures or under
severe conditions require frequent checks of the
battery fluid level.
1. Remove the cell plugs
A.
DI0137MA
BATTERY8-16
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WARNING
Be sure the engine and ignition switch
are off and that the parking brake is
engaged securely.
CAUTION
Be sure to use the correct socket to
remove the spark plugs. An incorrect
socket can damage the spark plugs.
REPLACING SPARK PLUGSIf replacement is required, see a NISSAN dealer
for servicing.Platinum-tipped spark plugsIt is not necessary to replace the platinum-tippedAspark plugs as frequently as the conventional
type spark plugs since they will last much longer.
Follow the maintenance schedule, but do not
reuse them by cleaning or regapping.
Always replace with recommended
platinum-tipped spark plugs.The filter element should not be cleaned and
reused. Replace it according to the maintenance
log shown in the separate Service and Mainte-
nance Guide. When replacing the filter, wipe the
inside of the air cleaner housing and the cover
with a damp cloth.
WARNING

Operating the engine with the air
cleaner removed can cause you or
others to be burned. The air cleaner
not only cleans the air, it stops flame
SDI0145C
SDI1637
SPARK PLUGS AIR CLEANER8-18
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