2002 NISSAN ALTIMA check engine

If you wax the surface of the hood, be
careful not to let wax get into the washer
nozzle. This may cause clogging or im-
proper windshield washer operation. If wax
gets into the nozzle, remove it with a needle
or small pin.
CHECKING PARKING BRAKE
From the released position, pull the parking
brake lever up slowly and firmly. If the
number of clicks is out of the range listed
above, see an authorized NISSAN dealer.
CHECKING BRAKE PEDAL
With the engine running, check the distance
between the upper surface of the pedal and
the metal floor. If it is out of the range shown
above, see an authorized NISSAN dealer.
ADI0613
LDI0085WDI0129
PARKING BRAKE AND BRAKE
PEDAL
Maintenance and do-it-yourself8-25
ZX

Self-adjusting brakes
Your vehicle is equipped with self-adjusting
brakes.
The front and rear, disc-type brakes self-
adjust every time the brake pedal is applied.
Brake pad wear indicators
The disc brake pads on your vehicle have
audible wear indicators. When a brake pad
requires replacement, it makes a high
pitched scraping or screeching sound when
the vehicle is in motion whether or not the
brake pedal is depressed. Have the brakes
checked as soon as possible if the wear
indicator sound is heard.
Under some driving or climate conditions,
occasional brake squeak, squeal or other
noise may be heard. Occasional brake
noise during light to moderate stops is nor-
mal and does not affect the function or
performance of the brake system.
Proper brake inspection intervals should
be followed.For more information regard-
ing brake inspections, see the appropriate
maintenance schedule information in the
``NISSAN Service and Maintenance Guide.''
BRAKE BOOSTER
Check the brake booster function as fol-
lows:
1. With the engine off, press and release
the brake pedal several times. When
brake pedal movement (distance of
travel) remains the same from one pedal
application to the next, continue on to the
next step.
2. While depressing the brake pedal, start
the engine. The pedal height should drop
a little.
3. With the brake pedal depressed, stop the
engine. Keep the pedal depressed for
about 30 seconds. The pedal height
should not change.
4. Run the engine for one minute without
depressing the brake pedal, then turn it
off. Depress the brake pedal several
times. The pedal travel distance will de-
crease gradually with each depression
as the vacuum is released from the
booster.
If the brakes do not operate properly, see an
authorized NISSAN dealer.
CHECKING CLUTCH PEDAL
Press the pedal by hand and be sure the
free travel is within the limits shown above.
If free travel is out of the range shown
above, see an authorized NISSAN dealer.
ADI0528
CLUTCH PEDAL
8-26Maintenance and do-it-yourself
ZX

ENGINE COMPARTMENT
CAUTION
Never use a fuse of a higher amperage
rating than specified on the fuse box
cover. This could damage the electrical
system or cause a fire.
If the electrical equipment does not come
on, check for an open fuse.
1. Be sure the ignition switch and the head-
light switch are OFF.
2. Open the engine hood.3. Remove the fuse box cover.
4. Remove the fuse with the fuse puller
located in the passenger compartment
fuse box.
5. If the fuse is open, replace it with a new
fuse.
6. If a new fuse also opens, have the elec-
trical system checked and repaired by an
authorized NISSAN dealer.
Fusible links
If the electrical equipment does not operate
and fuses are in good condition, check the
fusible links. If any of these fusible links are
melted, replace only with genuine NISSAN
parts.WDI0149
FUSES
Maintenance and do-it-yourself8-27
ZX

If any driveability problems such as engine
stalling and difficult hot-starting are experi-
enced after using oxygenate-blend fuels,
immediately change to a non-oxygenate
fuel or a fuel with a low blend of MTBE.
Take care not to spill gasoline during
refueling. Gasoline containing oxygen-
ates can cause paint damage.
Aftermarket fuel additives
NISSAN does not recommend the use of
any fuel additives (i.e.: fuel injector cleaner,
octane booster, intake valve deposit remov-
ers, etc.) which are sold commercially.
Many of these additives intended for gum,
varnish or deposit removal may contain
active solvents or similar ingredients that
can be harmful to the fuel system and
engine.
Octane rating tips
In most parts of North America, you should
use unleaded gasoline with an octane rating
of at least 87 AKI (Anti-Knock Index) num-
ber. However, you may use unleaded gaso-
line with an octane rating as low as 85 AKI
(Anti-Knock Index) number in high altitude
areas [over 4,000 ft (1,219 m)] such as:
Colorado, Montana, New Mexico, Utah,Wyoming, northeastern Nevada, southern
Idaho, western South Dakota, western Ne-
braska, and the part of Texas which is
directly south of New Mexico.
Using unleaded gasoline with an octane
rating lower than stated above can cause
persistent, heavy ``spark knock.''
(``Spark knock'' is a metallic rapping
noise.) If severe, this can lead to engine
damage. If you detect a persistent heavy
spark knock even when using gasoline
of the stated octane rating, or if you hear
steady spark knock while holding a
steady speed on level roads, have an
authorized dealer correct the condition.
Failure to correct the condition is misuse
of the vehicle, for which NISSAN is not
responsible.
Incorrect ignition timing may result in spark
knock, after-run or overheating, which may
cause excessive fuel consumption or en-
gine damage. If any of the above symptoms
are encountered, have your vehicle
checked at an authorized NISSAN dealer or
other competent service facility.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This isno cause for concern, because you get
the greatest fuel benefit when there is
light spark knock for a short time under
heavy engine load.
9-4Technical and consumer information
ZX

WARNING
Never connect a trailer brake system
directly to the vehicle brake system.
Pre-towing tips
cBe certain your vehicle maintains a level
position when a loaded and/or unloaded
trailer is hitched. Do not drive the vehicle if
it has an abnormal nose-up or nose- down
condition; check for improper tongue load,
overload, worn suspension or other pos-
sible causes of either condition.
cAlways secure items in the trailer to
prevent load shift while driving.
cBe certain your rear view mirrors conform
to all federal, state or local regulations. If
not, install any mirrors required for towing
before driving the vehicle.
Trailer towing tips
In order to gain skill and an understanding
of the vehicle's behavior, you should prac-
tice turning, stopping and backing up in an
area which is free from traffic. Steering
stability and braking performance will be
somewhat different than under normal driv-
ing conditions.cAlways secure items in the trailer to
prevent load shift while driving.
cAvoid abrupt starts, acceleration or
stops.
cAvoid sharp turns or lane changes.
cAlways drive your vehicle at a moderate
speed.
cAlways block the wheels on both vehicle
and trailer when parking. Parking on a
slope is not recommended; however, if
you must do so, and if your vehicle is
equipped with an automatic transmis-
sion, first block the wheels and apply the
parking brake, and then move the shift
lever into the P position. If you move the
shift lever to the P position before block-
ing the wheels and applying the parking
brake, transmission damage could occur.
cWhen going down a hill, shift into a lower
gear and use the engine braking effect.
When ascending a long grade, downshift
the transmission to a lower gear and
reduce speed to reduce chances of en-
gine overloading and/or overheating.
cIf the engine coolant rises to an ex-
tremely high temperature when the airconditioner system is on, turn off the air
conditioner. Coolant heat can be addi-
tionally vented by opening the windows,
switching the fan control to high and
setting the temperature control to the
HOT position.
cTrailer towing requires more fuel than
normal circumstances.
cAvoid towing a trailer for the first 500
miles (800 km).
cHave your vehicle serviced more often
than at intervals specified in the recom-
mended Maintenance Schedule.
cWhen making a turn, your trailer wheels
will be closer to the inside of the turn than
your vehicle wheels. To compensate for
this, make a larger than normal turning
radius during the turn.
cCrosswinds and rough roads will ad-
versely affect vehicle/trailer handling,
possibly causing vehicle sway. When
being passed by larger vehicles, be pre-
pared for possible changes in crosswinds
that could affect vehicle handling. If
swaying does occur, firmly grip the steer-
ing wheel, steer straight ahead, and im-
mediately (but gradually) reduce vehicle
Technical and consumer information
9-17
ZX

10 Index
A
Air bag (See supplemental restraint
system) ........................................................ 1-8
Air bag warning light ................. 1-14, 1-19, 2-9
Air cleaner housing filter ............................ 8-21
Air conditioner
Air conditioner operation ........................ 4-5
Air conditioner service .......................... 4-11
Air conditioner specification label ......... 9-12
Air conditioner system refrigerant and
lubrication recommendations.................. 9-7
Heater and air conditioner controls ........ 4-3
Servicing air conditioner ....................... 4-11
Air flow charts .............................................. 4-6
Alarm system (See vehicle security
system) ...................................................... 2-13
Anchor point locations ............................... 1-37
Antenna...................................................... 4-29
Anti-lock brake system (ABS).................... 5-19
Anti-lock brake warning light ..................... 2-10
Armrests....................................................... 1-7
Audio system
FM-AM radio with compact disc (CD)
changer ....................................... 4-16, 4-21
Autolamp switch......................................... 2-20
Automatic
Automatic power window switch .......... 2-32Automatic transmission fluid (ATF) ...... 8-14
Driving with automatic transmission ....... 5-4
B
Battery........................................................ 8-17
Battery
Charge warning light .............................. 2-9
Battery replacement (See remote keyless
entry system) ............................................... 3-8
Before starting the engine ........................... 5-6
Belts (See drive belts) ........................ 8-19, 9-8
Brake
Anti-lock brake system (ABS) .............. 5-19
Brake booster ....................................... 8-26
Brake fluid............................................. 8-16
Brake pedal .......................................... 8-25
Brake system .............................. 2-12, 5-18
Brake warning light ............................... 2-10
Brake wear indicators ................. 2-12, 8-26
Parking brake check ............................. 8-25
Parking brake operation ....................... 5-13
Self-adjusting brakes ............................ 8-26
Break-in schedule ...................................... 5-15
Bulb check/instrument panel ....................... 2-8
Bulb replacement ....................................... 8-32C
Capacities and recommended fuel/
lubricants...................................................... 9-2
Car phone or CB radio .............................. 4-29
Cargo (See vehicle loading information) ... 9-13
Check engine indicator light
(See malfunction indicator light) ................ 2-11
Child restraint with top tether strap ........... 1-37
Child restraints ........................ 1-23, 1-28, 1-35
Child safety rear door lock .......................... 3-4
Cleaning exterior and interior ...................... 7-2
Clutch
Clutch fluid ............................................ 8-16
Clutch pedal.......................................... 8-26
Cold weather driving .................................. 5-21
Controls
Heater and air conditioner controls ........ 4-3
Coolant
Capacities and recommended fuel/
lubricants ................................................ 9-2
Changing engine coolant...................... 8-10
Checking engine coolant level ............... 8-9
Engine coolant temperature gauge ........ 2-6
Corrosion protection .................................... 7-5
Cruise control............................................. 5-14
Cup holders ............................................... 2-27
ZX

D
Daytime running light system
(Canada only) ............................................ 2-20
Defogger switch
Rear window defogger switch .............. 2-17
Dimensions and weights.............................. 9-9
Door locks .................................................... 3-2
Door open warning light .............................. 2-9
Drive belts .................................................. 8-19
Driving
Cold weather driving............................. 5-21
Driving with automatic transmission ....... 5-4
Driving with manual transmission ........... 5-5
Precautions when starting and driving ... 5-2
E
Economy - fuel........................................... 5-16
Emission control information label............. 9-12
Emission control system warranty ............. 9-19
Engine
Before starting the engine ...................... 5-6
Capacities and recommended fuel/
lubricants ................................................ 9-2
Changing engine coolant...................... 8-10
Changing engine oil.............................. 8-11
Changing engine oil filter...................... 8-13
Checking engine coolant level ............... 8-9
Checking engine oil level ..................... 8-10Engine compartment check
locations .......................................... 8-7, 8-8
Engine coolant temperature gauge ........ 2-6
Engine cooling system ........................... 8-9
Engine oil .............................................. 8-10
Engine oil and oil filter
recommendation ..................................... 9-5
Engine oil pressure warning light .. 2-12, 2-8
Engine oil viscosity ................................. 9-5
Engine serial number ........................... 9-11
Engine specifications .............................. 9-8
Starting the engine ................................. 5-7
Exhaust gas (Carbon monoxide) ................. 5-2
Eyeglass case............................................ 2-26
F
Flashers (See hazard warning flasher
switch) ........................................................ 2-23
Flat tire ......................................................... 6-2
Floor mat positioning aid ............................. 7-5
Fluid
Automatic transmission fluid (ATF) ...... 8-14
Brake fluid............................................. 8-16
Capacities and recommended fuel/
lubricants ................................................ 9-2
Clutch fluid ............................................ 8-16
Engine coolant ........................................ 8-9
Engine oil .............................................. 8-10
Power steering fluid .............................. 8-15
Window washer fluid ............................ 8-17
F.M.V.S.S. certification label ..................... 9-11Front fog light switch ................................. 2-21
Front seats ................................................... 1-2
Fuel
Capacities and recommended fuel/
lubricants ................................................ 9-2
Fuel economy ....................................... 5-16
Fuel filler cap ........................................ 3-12
Fuel filler lid lock opener lever ............. 3-12
Fuel gauge.............................................. 2-6
Fuel octane rating................................... 9-4
Fuel recommendation ............................. 9-3
Fuses ......................................................... 8-27
Fusible links ............................................... 8-27
G
Gauge
Engine coolant temperature gauge ........ 2-6
Fuel gauge.............................................. 2-6
Odometer ................................................ 2-3
Speedometer .......................................... 2-3
Tachometer............................................. 2-6
Trip odometer ......................................... 2-3
General maintenance .................................. 8-3
Glove box................................................... 2-28
Glove box lock ........................................... 2-28
H
Hazard warning flasher switch .................. 2-23
Head restraints ............................................ 1-7
10-2
ZX

Headlight and turn signal switch ............... 2-18
Heated seats.............................................. 2-24
Heater
Heater and air conditioner controls ........ 4-3
Heater operation ..................................... 4-4
Homelink Transceiver
Integrated HomeLinkTUniversal
Transceiver (If so equipped) ................ 2-35
Hood release ............................................... 3-9
Horn ........................................................... 2-23
I
Ignition switch .............................................. 5-4
Immobilizer system ..................... 2-14, 3-2, 5-6
Important vehicle information label............ 9-11
Increasing fuel economy............................ 5-16
Indicator lights and audible reminders
(See warning/indicator lights and audible
reminders) .................................................... 2-8
Inside mirror ............................................... 3-15
Instrument brightness control .................... 2-20
Integrated HomeLinkTUniversal Transceiver
(If so equipped).......................................... 2-35
Interior light ................................................ 2-34
Interior trunk lid release ............................. 3-11
J
Jump starting ...................................... 6-6, 8-18K
Key ............................................................... 3-2
Keyless entry system (See remote keyless
entry system) ............................................... 3-5
L
Labels
Air conditioner specification label ......... 9-12
Emission control information label........ 9-12
Engine serial number ........................... 9-11
F.M.V.S.S. certification label ................ 9-11
Vehicle identification number (VIN)
plate ...................................................... 9-10
Warning labels (for SRS) ..................... 1-19
License plate
Installing the license plate .................... 9-13
Light
Air bag warning light ............ 1-14, 1-19, 2-9
Bulb check/instrument panel .................. 2-8
Bulb replacement.................................. 8-32
Charge warning light .............................. 2-9
Front fog light switch ............................ 2-21
Headlight and turn signal switch .......... 2-18
Interior light ........................................... 2-34
Low washer fluid warning light ............. 2-10
Spotlights (See map light) .................... 2-34
Trunk light ............................................. 2-35
Warning/indicator lights and audible
reminders ................................................ 2-8Lock
Child safety rear door lock ..................... 3-4
Door locks............................................... 3-2
Fuel filler lid lock opener lever ............. 3-12
Glove box lock ...................................... 2-28
Power door locks .................................... 3-3
Trunk lid lock opener lever ................... 3-10
M
Maintenance
General maintenance ............................. 8-3
Maintenance precautions ................ 8-2, 8-5
Outside the vehicle ................................. 8-3
Seat belt maintenance.......................... 1-28
Under the hood and vehicle ................... 8-4
Malfunction indicator lamp (MIL) ............... 2-11
Map lights .................................................. 2-34
Meters and gauges .............................. 2-2, 2-3
Mirror
Inside mirror.......................................... 3-15
Outside mirror control ........................... 3-16
Vanity mirror ......................................... 3-14
Multi-remote control system (See remote
keyless entry system) .................................. 3-5
Multi-remote controller battery
replacement ............................................... 8-29
N
Nissan vehicle immobilizer system
(NVIS) ......................................... 2-13, 3-2, 5-6
10-3
ZX