2003 NISSAN ALTIMA check engine light

cMake sure the area around the vehicle is
clear.
cCheck fluid levels such as engine oil, cool-
ant, brake and clutch fluid, and window
washer fluid as frequently as possible, or at
least whenever you refuel.
cCheck that all windows and lights are clean.
cVisually inspect tires for their appearance
and condition. Also check tires for proper
inflation.
cLock all doors.
cPosition seat and adjust head restraints.
cAdjust inside and outside mirrors.
cFasten seat belts and ask all passengers to
do likewise.
cCheck the operation of warning lights when
the key is turned to the ON (3) position. See
“Warning/indicator lights and audible re-
minders” in the “Instruments and controls”
section of this manual.1. Apply the parking brake.
2.Automatic transmission:
Move the shift selector lever to P (Park) or N
(Neutral) . P (Park) is recommended.
The shift selector lever cannot be
moved out of P (Park) and into any of
the other gear positions if the ignition
key is turned to the OFF position or if
the key is removed from the ignition
switch.
The starter is designed not to operate if
the shift selector lever is in any of the
driving positions.
Manual transmission:
Move the shift lever to N (Neutral) . Depress
the clutch pedal to the floor while cranking
the engine.
The starter is designed not to operate
unless the clutch pedal is fully de-
pressed.
3. Crank the enginewith your foot off the
accelerator pedalby turning the ignition
key to START. Release the key when the
engine starts. If the engine starts, but fails to
run, repeat the above procedure.cWhen the engine is very hard to start in
extremely cold weather or when restart-
ing, depress the accelerator pedal a little
(approximately 1/5 to the floor) and hold it
and then crank the engine. Release the
key and the accelerator pedal when the
engine starts.
cWhen the engine is very hard to start
because it is flooded, depress the accel-
erator pedal all the way to the floor and
hold it. Crank the engine for 5-6 seconds.
After cranking the engine, release the ac-
celerator pedal. Crank the enginewith
your foot off the accelerator pedalby
turning the ignition key to START. Release
the key when the engine starts. If the
engine starts, but fails to run, repeat the
above procedure.
CAUTION
Do not operate the starter for more than
15 seconds at a time. If the engine does
not start, turn the key off and wait 10
seconds before cranking again, otherwise
the starter could be damaged.
4. Allow the engine to idle for at least 30 sec-
onds after starting. Drive at moderate speed
for a short distance first, especially in cold
weather.
BEFORE STARTING THE ENGINE STARTING THE ENGINE
5-6Starting and driving
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1 (Low gear):
Use this position when climbing steep hills slowly
or slow driving through deep snow, sand or mud,
or for maximum engine braking on steep downhill
grades.
Do not shift into the 1 position at speeds above
37 MPH (60 km/h) . Do not exceed 37 MPH (60
km/h) in the 1 position.
Shift lock release
If the battery is discharged, the shift selector lever
may not be moved from the P (Park) position even
with the brake pedal depressed.
To move the shift selector lever, release the shift
lock. The shift selector lever can be moved to N
(Neutral) . However, the steering wheel will be
locked unless the ignition switch is turned to the
ON position. This allows the vehicle to be moved
if the battery is discharged.
To push the shift lock release, complete the fol-
lowing procedure:1. Turn the ignition key to the LOCK position
and remove the key
2. Apply the parking brake.
3. Remove the shift lock release cover as
shown.
4. Insert a small screwdriver in the shift lock
release slot and push down.
5. Move the shift selector lever to the N (Neu-
tral) position while holding down the shift
lock release.
6. Turn the key to the ON position to unlock the
steering wheel. Now the vehicle may be
moved to the desired location.
If the shift selector lever cannot be moved out of
P (Park) , have a NISSAN dealer check the auto-
matic transmission system as soon as possible.
WARNING
If the selector lever cannot be moved from
the P (Park) position while the engine is
running and the brake pedal is depressed,
the stop lights may not work. Malfunction-
ing stop lights could cause an accident
injuring yourself and others.
LSD0024
Starting and driving5-9
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Accelerator downshift
— in D position —
For passing or hill climbing, depress the accel-
erator pedal to the floor. This shifts the transmis-
sion down into a lower gear, depending on the
vehicle speed.
Fail-safe
When the fail-safe operation occurs, the next
time the key is turned to the ON position, the light
in the instrument cluster of the selected shift
position will blink for approximately 8 seconds
after the ignition is turned ON. While the vehicle
can be driven under these circumstances, please
note that the automatic transmission will be
locked in third gear.
If the vehicle is driven under extreme con-
ditions, such as excessive wheel spinning
and subsequent hard braking, the fail-safe
system may be activated. This will occur
even if all electrical circuits are functioning
properly. In this case, turn the ignition key
OFF and wait for 3 seconds. Then turn the
key back to the ON position. The vehicle
should return to its normal operating con-
dition. If it does not return to its normal
operating condition, have a NISSAN dealer
check the transmission and repair it if nec-
essary.
MANUAL TRANSMISSION
WARNING
cDo not downshift abruptly on slippery
roads. This may cause a loss of control.
cDo not over-rev the engine when shift-
ing to a lower gear. This may cause a
loss of control or engine damage.
CAUTION
cDo not rest your foot on the clutch pedal
while driving. This may cause clutch
damage.
cFully depress the clutch pedal before
shifting to help prevent transmission
damage.
cStop your vehicle completely before
shifting into R (Reverse) .
cWhen the vehicle is stopped with the
engine running (for example, at a stop
light) , shift to N (Neutral) and release
the clutch pedal with the foot brake
applied.
Shifting
To change gears, or when upshifting or down-
shifting, depress the clutch pedal fully, shift into
the appropriate gear, then release the clutch
slowly and smoothly.
You cannot shift directly from 5th gear into R
(Reverse) . First shift into N (Neutral) , then into R
(Reverse) .
If it is difficult to move the shift lever into R
(Reverse) or 1 (1st) , shift into N (Neutral) , then
release the clutch pedal. Depress the clutch
pedal again and shift into R (Reverse) or 1 (1st) .
WSD0059
5-10Starting and driving
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1. Cruise control main switch
2. RES/ACCEL switch
3. CANCEL switch
4. COAST/SET switch
PRECAUTIONS ON CRUISE
CONTROL
cIf the cruise control system malfunctions, it
cancels automatically. The SET indicator
light in the instrument panel then blinks to
warn the driver.
cIf the SET indicator light blinks, turn the
cruise control main switch off and have the
system checked by a NISSAN dealer.cThe SET indicator light may blink when the
cruise control main switch is turned ON
while pushing the RES/ACCEL,
COAST/SET, or CANCEL switch (located
on the steering wheel) . To properly set the
cruise control system, use the following pro-
cedures.
WARNING
Do not use the cruise control when driving
under the following conditions:
cWhen it is not possible to keep the
vehicle at a set speed.
cIn heavy traffic or in traffic that varies in
speed.
cOn winding or hilly roads.
cOn slippery roads (rain, snow, ice, etc.) .
cIn very windy areas.
Doing so could cause a loss of vehicle
control and result in an accident.
CAUTION
On manual transmission models, do not
shift into N (Neutral) without depressing the
clutch pedal when the cruise control is set.
Should this occur, depress the clutch pedal
and turn the main switch off immediately.
Failure to do so may cause engine damage.
CRUISE CONTROL OPERATIONS
The cruise control allows driving at a speed be-
tween 30 - 90 MPH (48 - 144 km/h) without
keeping your foot on the accelerator pedal.
To turn on the cruise control,push the main
switch. The CRUISE indicator light in the instru-
ment panel comes on.
To set cruising speed,accelerate the vehicle to
the desired speed, push the COAST/SET switch
and release it. The SET indicator light in the
instrument panel comes on. Take your foot off the
accelerator pedal. Your vehicle maintains the set
speed.
cTo pass another vehicle,depress the ac-
celerator pedal. When you release the
pedal, the vehicle returns to the previously
set speed.
cThe vehicle may not maintain the set speed
when going up or down steep hills. If this
happens, drive without the cruise control.
WSD0054
CRUISE CONTROL (if so equipped)
Starting and driving5-13
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WARNING
cThe traction control system is designed
to help improve driving stability but
does not prevent accidents due to
abrupt steering operation at high
speeds or by careless or dangerous
driving techniques. Reduce vehicle
speed and be especially careful when
driving and cornering on slippery sur-
faces and always drive carefully.
cIf suspension parts such as shock ab-
sorbers, struts, springs and bushings
are not standard equipment or are ex-
tremely deteriorated, the traction con-
trol off indicator light may come on.
cWhen driving on extremely inclined sur-
faces such as higher banked corners,
the traction control system may not op-
erate properly or the
indicator
light may come on. Do not drive on
these types of roads.
cIf tires other than the recommended
ones are used, the traction control sys-
tem may not operate properly or
the
indicator light may come on.
cThe traction control system is not a sub-
stitute for winter tires or tire chains on a
snow covered road.
FREEING A FROZEN DOOR LOCK
To prevent a door lock from freezing, apply de-
icer through the key hole. If the lock becomes
frozen, heat the key before inserting it into the key
hole.
ANTI-FREEZE
In the winter when it is anticipated that the tem-
perature will drop below 32°F (0°C) , check the
anti-freeze to assure proper winter protection.
For details, see ‘‘Engine cooling system’’ in the
‘‘Maintenance and do-it-yourself’’ section of this
manual.
BATTERY
If the battery is not fully charged during extremely
cold weather conditions, the battery fluid may
freeze and damage the battery. To maintain maxi-
mum efficiency, the battery should be checked
regularly. For details, see ‘‘Battery’’ in the ‘‘Main-
tenance and do-it-yourself’’ section of this
manual.
DRAINING OF COOLANT WATER
If the vehicle is to be left outside without anti-
freeze, drain the cooling system, including the
engine block. Refill before operating the vehicle.For details, see ‘‘Changing engine coolant’’ in the
‘‘Maintenance and do-it-yourself’’ section of this
manual.
TIRE EQUIPMENT
1. SUMMER tires have a tread designed to
provide superior performance on dry pave-
ment. However, the performance of these
tires will be substantially reduced in snowy
and icy conditions. If you operate your ve-
hicle on snowy or icy roads, NISSAN recom-
mends the use of MUD & SNOW or ALL
SEASON TIRES on all four wheels. Please
consult a NISSAN dealer for the tire type,
size, speed rating and availability informa-
tion.
2. For additional traction on icy roads, studded
tires may be used. However, some U.S.
states and Canadian provinces 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 be
poorer than that of non-studded snow tires.
3. Tire chains may be used.
Use of tire chains may be prohibited accord-
ing to location. Check the local laws before
installing tire chains. When installing tire
chains, make sure they are of proper size for
COLD WEATHER DRIVING
5-20Starting and driving
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8 Maintenance and do-it-yourself
Maintenance requirements..........................8-2
General maintenance..............................8-2
Explanation of general maintenance items.........8-2
Maintenance precautions...........................8-5
Engine compartment check locations................8-7
Engine cooling system.............................8-9
Checking engine coolant level...................8-9
Changing engine coolant.......................8-10
Engine oil........................................8-10
Checking engine oil level.......................8-10
Changing engine oil...........................8-11
Changing engine oil filter.......................8-13
Automatic transmission fluid.......................8-14
Temperature conditions for checking.............8-14
Power steering fluid...............................8-15
Brake and clutch fluid.............................8-16
Brake fluid....................................8-16
Clutch fluid...................................8-17
Window washer fluid.............................8-17
Window washer fluid reservoir..................8-17
Battery..........................................8-18
Jump starting.................................8-19
Drive belts.......................................8-20
Spark plugs......................................8-21Replacing spark plugs.........................8-21
Air cleaner.......................................8-22
In-cabin microfilter (if so equipped)..............8-22
Windshield wiper blades..........................8-25
Cleaning.....................................8-25
Replacing....................................8-25
Parking brake and brake pedal.....................8-26
Checking parking brake........................8-26
Checking brake pedal..........................8-26
Brake booster.................................8-27
Fuses...........................................8-27
Engine compartment...........................8-27
Passenger compartment.......................8-29
Keyfob battery replacement........................8-30
Lights...........................................8-31
Headlights....................................8-31
Front park/turn/sidemarker light.................8-31
Fog lights (if so equipped)......................8-31
Exterior and interior lights.......................8-33
Wheels and tires.................................8-40
Tire pressure..................................8-40
Types of tires..................................8-41
Tire chains....................................8-42
Changing wheels and tires.....................8-42
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Warning lights and chimesMake sure all
warning lights and chimes are operating properly.
Windshield wiper and washer*Check that
the wipers and washer operate properly and that
the wipers do not streak.
Windshield defrosterCheck that the air
comes out of the defroster outlets properly and in
sufficient quantity when operating the heater or
air conditioner.
Under the hood and vehicle
The maintenance items listed here should be
checked periodically (for example, each time you
check the engine oil or refuel) .
Automatic transmission fluid level*Check
the level after putting the selector lever in P with
the engine idling at operating temperature.
Battery*Check the fluid level in each cell. It
should be between the MAX and MIN lines. Ve-
hicles operated in high temperatures or under
severe conditions require frequent checks of the
battery fluid level.
Brake and clutch fluid levels*Make sure that
the brake and clutch fluid level is between the
MIN and MAX lines on the reservoir.
Engine coolant level*Check the coolant level
when the engine is cold.Engine drive belts*Make sure the drive belts
are not frayed, worn, cracked or oily.
Engine oil level*Check the level after parking
the vehicle on a level surface with the engine off.
Wait more than 10 minutes for the oil to drain
back into the oil pan.
Exhaust systemMake 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 have the exhaust
system inspected by a NISSAN dealer. See the
carbon monoxide warning in the “Starting and
driving” section of this manual.
Fluid leaksCheck 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 linesCheck
the level when the fluid is cold, with the engine
off. Check the lines for proper attachment, leaks,
cracks, etc.
Radiator and hosesCheck the front of the
radiator and clean off any dirt, insects, leaves,etc., that may have accumulated. Make sure the
hoses have no cracks, deformation, rot or loose
connections.
UnderbodyThe underbody is frequently ex-
posed to corrosive substances such as those
used on icy roads or to control dust. It is very
important to remove these substances from the
underbody, otherwise rust may form on the floor
pan, frame, fuel lines and exhaust system. At the
end of winter, the underbody should be thor-
oughly flushed with plain water, in those areas
where mud and dirt may have accumulated. See
the “Appearance and care” section of this
manual.
Windshield washer fluid*Check that there is
adequate fluid in the reservoir.
8-4Maintenance and do-it-yourself
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CHANGING ENGINE OIL FILTER
1. Park the vehicle on a level surface and apply
the parking brake.
2. Turn the engine off.
3. Place a large drain pan under the oil filter.
4. Loosen the oil filter with an oil filter wrench
by turning it counterclockwise. Then remove
the oil filter by turning it by hand.
CAUTION
Be careful not to burn yourself. The engine
oil may be hot.
5. Wipe the engine oil filter mounting surface
with a clean rag.
Be sure to remove any old gasket material
remaining on the mounting surface of the
engine.
6. Coat the gasket on the new filter with clean
engine oil.7. Screw on the oil filter until a slight resistance
is felt, then tighten an additional 2/3 turn.
8. Start the engine and check for leakage
around the oil filter. Correct as required.
9. Turn the engine off and wait more than 10
minutes. Check the oil level. Add engine oil if
necessary.
QR25DE
WDI0217
VQ35DE
WDI0218
Maintenance and do-it-yourself8-13
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