1997 NISSAN PATHFINDER ECU

5. Securely store the spare tire and jacking
equipment in the vehicle.
Always make sure that the spare tire and
jacking equipment are properly secured
after use. Such items can become dan-
gerous projectiles in an accident or sud-
den stop.
If you try to start your engine with a booster
battery, follow the instructions and precautions
below:
IIf done incorrectly, jump starting can
lead to a battery explosion, resulting
in severe injury or death. It could also
damage your vehicle.
IExplosive hydrogen gas is always
present in the vicinity of the battery.
Keep all sparks and flames away from
it.
IDo not allow battery fluid to come
into contact with eyes, skin, cloth or
painted surfaces. Battery fluid is a
corrosive sulphuric acid solution
which can cause severe burns. If the
fluid should come into contact with
anything, immediately flush the con-
tacted area with water.
IKeep battery out of the reach of chil-
dren.
IThe booster battery must be rated at
12 volts. Use of an improperly rated
battery can damage your vehicle.IWhenever working on or near a bat-
tery, always wear suitable eye protec-
tors (e.g., goggles or industrial safety
spectacles) and remove rings, metal
bands, or any other metal jewelry. Do
not lean over battery when jump-
starting.
IDo not attempt to jump start a frozen
battery. It could explode and cause
serious injury.
IYour vehicle has an automatic engine
cooling fan. It could come on at any
time. Keep hands and other objects
away from it.
JUMP STARTING
5-7
Z01.2.1/R50-DX

Be careful not to allow your hands, hair,
jewelry or clothing to come into contact
with, or to get caught in, the running fan
or belts.
7. After the engine cools down, check the
coolant level in the reservoir tank with the
engine running. Add coolant to the reservoir
tank if necessary. Have your vehicle re-
paired at the nearest NISSAN dealer.When towing your vehicle, all State (Provincial
in Canada) and local regulations for towing
must be followed. Incorrect towing equipment
could damage your vehicle. Towing instruc-
tions are available from your NISSAN dealer.
Local service operators will generally be famil-
iar with the applicable laws and procedures for
towing. To assure proper towing and to pre-
vent accidental damage to your vehicle,
NISSAN recommends that you have a service
operator tow your vehicle. It is advisable to
have the service operator carefully read the
following precautions.
INever ride in a vehicle that is being
towed.
INever get under your vehicle after it
has been lifted by a tow truck.
IWhen towing, make sure that the
transmission, axles, steering system
and power train are in good order. If
any unit is damaged, a dolly must be
used.IWhen towing with the front wheels on
the ground:
Turn the ignition key to the ªOFFº
position and secure the steering
wheel in a straight-ahead position
with a rope or similar device. Never
place the ignition key in the ªLOCKº
position. This will result in damage to
the steering lock mechanism.
IWhen towing manual transmission
models with the rear wheels on the
ground, release the parking brake
and move the gearshift lever to the
neutral position.
IFor 4-wheel drive model:
Move the transfer case shift lever into
the ª2Hº position and the transmis-
sion shift lever into the neutral (ªNº)
position.
IAttach safety chains for all towing.
TOW TRUCK TOWING
5-10
Z01.2.1/R50-DX

When performing any inspection or mainte-
nance work on your vehicle, always take care
to prevent serious accidental injury to yourself
or damage to the vehicle. The following are
general precautions which should be closely
observed.
IPark 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
Neutral. For an automatic transmis-
sion, move the selector lever to ªPº
(Park).
IBe sure the ignition key is in the
ªOFFº or ªLOCKº position when per-
forming any replacement or repair.
IIf you must work with the engine
running, keep your hands, clothing,
hair and tools away from moving fans
and fan belts.
IIt is advisable to remove necktie and
any jewelry, such as rings, watches,
etc. before working on your vehicle.IIf you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases.
INever 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.
IKeep smoking materials, flame and
sparks away from fuel and battery.
IThe fuel filter or fuel lines should be
serviced by a NISSAN dealer because
the fuel lines are under high pressure
even when the engine is off.
IDo not work under the engine hood
while it is hot. Always turn off the
engine and wait until it cools down.
INever connect or disconnect either
the battery or any transistorized com-
ponent connector while the ignition
key is on.
IAvoid direct contact with used engineoil. Improperly disposed motor oil and/
or other vehicle fluids can hurt the
environment. Always conform to lo-
cal regulations for disposal of vehicle
fluid.
This ªDo-it-yourself operationsº section gives
instructions regarding only those items which
are relatively easy for an owner to perform.
You should be aware that incomplete or im-
proper servicing may result in operating diffi-
culties or excessive emissions, and could af-
fect your warranty coverage.If in doubt about
any servicing, have it done by your NISSAN
dealer.
PRECAUTIONS
7-2
Z01.2.1/R50-DX

1. Perform the following procedure to open
the heater water cock.
ITurn the ignition key from ªOFFº to ªONº.
IMove the heater or air conditioner tem-
perature control dial to the maximum hot
position then turn the ignition key to
ªOFFº.
2. Open the radiator drain plug and radiator
cap.
Open the drain plugs on the engine block.3. Open the air release plug to drain the
coolant.
4. Flush the cooling system by running fresh
water through the radiator.
5. Close the radiator drain plug and engine
block drain plugs securely.
6. See the ªTechnical informationº section for
cooling system capacity.
Fill the radiator slowly with the proper mix-
ture of coolant and water. Fill the reservoir
tank slowly up to the ªMAXº level. Then
install the radiator cap and close the air
release plug.7. Start the engine and warm it up until it
reaches normal operating temperature.
Then race the engine 2 or 3 times under no
load.
Watch the coolant temperature gauge for
signs of overheating.
8. Stop the engine. After it completely cools
down, refill the radiator up to the filler
opening. Fill the reservoir tank up the
ªMAXº level.
9. Check the radiator drain plug and engine
block drain plugs for any sign of leakage.
SDI0409SDI0410SDI0419
7-6
Z01.2.1/R50-DX

CHANGING ENGINE OIL
1. Park the vehicle on a level surface and
apply the parking brake.
2. Warm up the engine until it reaches oper-
ating temperature, and then turn it off.
3. Place a large drain pan under the drain
plug.
4. Remove the oil filler cap.
5. Remove the drain plug with a wrench and
completely drain the oil.
If the oil filter is to be changed, remove andreplace it at this time. See ªChanging oil
filterº.
Be careful not to burn yourself, as the
engine oil is hot.
Waste oil must be disposed of properly.
Check your local regulations.
6. Clean and re-install the drain plug and new
washer. Securely tighten the drain plug with
a wrench. Do not use excessive force.
Drain plug tightening torque:
22 to 29 ft-lb (29 to 39 N×m)
7. Refill engine with recommended oil and
install the oil filler cap securely.
See the ªTechnical informationº section for
refill capacity.
8. Start the engine.
Check for leakage around the drain plug.
Correct as required.
9. Turn the engine off and wait several min-
utes. Check the oil level with the dipstick.
Add engine oil if necessary.
IProlonged and repeated contact with
used engine oil may cause skin can-
cer.
ITry to avoid direct skin contact with
used oil. If skin contact is made, wash
thoroughly with soap or hand cleaner
as soon as possible.
IKeep used engine oil out of reach of
children.
SDI0416
7-8
Z01.2.1/R50-DX

IKeep the battery surface clean and dry. Any
corrosion should be washed off with a
solution of baking soda and water.
IMake certain the terminal connections are
clean and securely tightened.
IIf the vehicle is not to be used for 30 days or
longer, disconnect the ªþº negative battery
terminal cable to prevent discharge.
IDo 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 minutes and
seek medical attention.
IWhen working on or near a battery,
always wear suitable eye protection
and remove all jewelry.
IKeep the battery out of the reach ofchildren.
JUMP STARTING
If jump starting is necessary, see the ªIn case
of emergencyº section. If the engine does not
start by jump starting, the battery may have to
be replaced. Contact your NISSAN dealer.
Check the fluid level in each cell. It should be
between the MAX. and MIN. lines.
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.
1. Remove the cell plugs using a suitable tool.
2. Add distilled water up to the MAX. level.
3. Tighten cell plugs.
DI0137M
BATTERY
7-13
Z01.2.1/R50-DX

Be sure the ignition key is ªOFFº. The
engine could rotate unexpectedly.
1. Visually inspect each belt for signs of un-
usual wear, cuts, fraying or looseness. If
the belt is in poor condition or loose, have it
replaced or adjusted by your NISSAN
dealer.2. Have the belts checked regularly for condi-
tion and tension in accordance with the
maintenance schedule in this manual.
Be sure the engine and ignition switch
are off and that the parking brake is
engaged securely.
1. Disconnect spark plug cables. Keep track
of the original cable location.
When disconnecting, always hold the
boots Ð not the cables. Mark all cables to
identify their original location.
SDI0424DI0064
DRIVE BELTS SPARK PLUG REPLACEMENT
7-14
Z01.2.1/R50-DX

Summer tires
NISSAN specifies summer tires on some mod-
els to provide superior performance on dry
roads. Summer tire performance in snow and
ice will be substantially reduced. Summer tires
do not have the tire traction rating ªM&Sº on
the tire sidewall.
If you plan to operate your vehicle in snowy or
icy conditions, NISSAN recommends the use
of ªSNOWº or ªALL SEASONº tires on all four
wheels.
Snow tires
If snow tires are needed, it is necessary to
select tires equivalent in size and load rating to
the original equipment tires. If you do not, it
can adversely affect the safety and handling of
your vehicle.
Generally, snow tires will have lower speed
ratings than factory equipped tires and may
not match the potential maximum vehicle
speed. Never exceed the maximum speed
rating of the tire.
For additional traction on icy roads, studded
tires may be used. However, some provinces
and states prohibit their use. Check local, state
and provincial laws before installing studded
tires. Skid and traction capabilities of studded
snow tires, on wet or dry surfaces, may bepoorer than that of non-studded snow tires.
4-wheel drive model
If you install snow tires, they must also be the
same size, brand, construction and tread pat-
tern on all four wheels.
ONLY use spare tires specified for each
4-wheel drive model.
Tire chains
Use of tire chains is prohibited according to
location. Check the local laws before installing
tire chains. When installing tire chains, make
sure they are of proper size for the tires on
your vehicle and are installed according to the
chain manufacturer's suggestions.Use only
SAE class ªSº chains.Other types may
damage your vehicle. Use chain tensioners
when recommended by the tire chain manu-
facturer to ensure a tight fit. Loose end links of
the tire chain must be secured or removed to
prevent the possibility of whipping action dam-
age to the fenders or underbody. If possible,
avoid fully loading your vehicle when using tire
chains. In addition, drive at a reduced speed.
Otherwise, your vehicle may be damagedand/or vehicle handling and performance may
be adversely affected.
Do not use tire chains on dry roads.
Tire chains must be installed only on the
rear wheels and not on the front wheels.
Do not drive with tire chains on paved roads
which are clear of snow. Driving with chains in
such conditions can cause damage to the
various mechanisms of the vehicle due to
some overstress. When driving on clear paved
roads, be sure to change to 2WD.
7-27
Z01.2.1/R50-DX