2008 NISSAN SENTRA check engine

INDICATOR LIGHTS
Continuously Variable
Transmission (CVT) position
indicator light (CVT models)
When the ignition key is turned to the ON posi-
tion, this indicator light shows the CVT selector
lever position. See “Driving the vehicle” in the
“Starting and driving” section of this manual.
Cruise main switch indicator
light (if so equipped)
The light comes on when the cruise control main
switch is pushed. The light goes out when the
main switch is pushed again. When the cruise
main switch indicator light comes on, the cruise
control system is operational.
Cruise set switch indicator
light (if so equipped)
The light comes on while the vehicle speed is
controlled by the cruise control system. If the light
blinks while the engine is running, it may indicate
the cruise control system is not functioning prop-
erly. Have the system checked by a NISSAN
dealer.
orFront passenger
air bag status light
The front passenger air bag status light (or) will be lit and the passenger front air
bag will be OFF depending on how the front
passenger seat is being used.
For front passenger air bag status light operation,
see “Front passenger air bag and status light” in
the “Safety — Seats, seat belts and supplemental
restraint system” section of this manual.
High beam indicator light
(blue)
This blue light comes on when the headlight high
beams are on and goes out when the low beams
are selected.
The high beam indicator light also comes on
when the passing signal is activated.
Malfunction Indicator Light
(MIL)
If this indicator light comes on steady or blinks
while the engine is running, it may indicate a
potential emission control malfunction.
The Malfunction Indicator Light may also come
on steady if the fuel-filler cap is loose or missing,
or if the vehicle runs out of fuel. Check to make
sure the fuel-filler cap is installed and closedtightly, and that the vehicle has at least 3 gallons
(11.4 liters) of fuel in the fuel tank.
After a few driving trips, the
light should
turn off if no other potential emission control
system malfunction exists.
If this indicator light comes on steady for 20
seconds and then blinks for 10 seconds when
the engine is not running, it indicates that the
vehicle is not ready for an emission control sys-
tem inspection/maintenance test. See “Readi-
ness for inspection/maintenance (I/M) test” in the
“Technical and consumer information” section of
this manual.
Operation
The Malfunction Indicator Light will come on in
one of two ways:
cMalfunction Indicator Light on steady — An
emission control system malfunction has
been detected. Check the fuel-filler cap. If
the fuel-filler cap is loose or missing, tighten
or install the cap and continue to drive the
vehicle. The
light should turn off after
a few driving trips. If thelight does not
turn off after a few driving trips, have the
vehicle inspected by a NISSAN dealer. You
do not need to have your vehicle towed to
the dealer.
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cMalfunction Indicator Light blinking — An
engine misfire has been detected which may
damage the emission control system. To re-
duce or avoid emission control system dam-
age:
– do not drive at speeds above 45 MPH
(72 km/h) .
– avoid hard acceleration or deceleration.
– avoid steep uphill grades.
– if possible, reduce the amount of cargo
being hauled or towed.
The Malfunction Indicator Light may stop blinking
and come on steady. Have the vehicle inspected
by a NISSAN dealer. You do not need to have
your vehicle towed to the dealer.
CAUTION
Continued vehicle operation without hav-
ing the emission control system checked
and repaired as necessary could lead to
poor driveability, reduced fuel economy,
and possible damage to the emission con-
trol system.
Overdrive off indicator light
(CVT models)
The overdrive off indicator light illuminates when
the overdrive off mode is selected.
For additional information, see “Continuous Vari-
able Transmission (CVT)” in the “Starting and
driving” section of this manual.
Security indicator light
For vehicles without Intelligent Key: This light
blinks whenever the ignition switch is in the
LOCK, OFF or ACC position.
For vehicles with Intelligent Key: This light blinks
when the ignition switch is in the LOCK position
with the key removed from the ignition switch.
The blinking security indicator light indicates that
the security systems equipped on the vehicle are
operational.
For additional information, see “Security sys-
tems” later in this section.
Turn signal/hazard indicator
lights
The appropriate light flashes when the turn signal
switch is activated.Both lights flash when the hazard switch is turned
on.
AUDIBLE REMINDERS
Brake pad wear warning
The disc brake pads have audible wear warnings.
When a disc brake pad requires replacement, it
makes a high pitched scraping 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 warning sound is heard.
Key reminder chime
A chime sounds if the driver’s door is opened
while the key is left in the ignition switch. Remove
the key and take it with you when leaving the
vehicle.
Intelligent Key door buzzer (if so
equipped)
The Intelligent Key door buzzer sounds if any one
of the following improper operations is found.
cThe ignition switch is not returned to the
LOCK position when locking the doors.
cThe Intelligent Key is left inside the vehicle
when locking the doors.
cThe Intelligent Key is taken outside the ve-
hicle when operating the vehicle.
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cany request switch (Intelligent Key mod-
els) .
cthe keyfob or Intelligent Key.
Keyfob and Intelligent Key operation:
cPush the
button. All doors lock.
The hazard lights flash twice and the horn
beeps once to indicate all doors are
locked.
cWhen the
button is pushed with
all doors locked, the hazard lights flash
twice and the horn beeps once as a re-
minder that the doors are already locked.
The horn may or may not beep. Refer to
“Silencing the horn beep feature” in the
“Pre-driving checks and adjustments” sec-
tion later in this manual.
4. Confirm that the
indicator light comes
on. Thelight stays on for about 30
seconds. The vehicle security system is now
pre-armed. After about 30 seconds the ve-
hicle security system automatically shifts
into the armed phase. The
light begins
to flash once every 3 seconds. If, during the
30-second pre-arm time period, the driver’s
door is unlocked by the key, a request
switch, the keyfob or Intelligent Key, or if the
ignition switch is turned to ACC or ON, the
system will not arm.cIf the key is turned slowly when locking
the driver’s door, the system may not
arm. Furthermore, if the key is turned
beyond the vertical position toward the
unlock position to remove the key, the
system may be disarmed when the key
is removed. If the indicator light fails to
glow for 30 seconds, unlock the door
once and lock it again.
cEven when the driver and/or passen-
gers are in the vehicle, the system will
arm with all doors closed and locked
with the ignition key in the OFF posi-
tion.
Vehicle security system activation
The vehicle security system will give the following
alarm:
cThe headlights blink and the horn sounds
intermittently.
cThe alarm automatically turns off after ap-
proximately 50 seconds. However, the alarm
reactivates if the vehicle is tampered with
again. The alarm can be shut off by unlocking
the driver’s door with the key, a request
switch or by pressing the
button on
the keyfob or Intelligent Key.The alarm is activated by:
copening a door without using the key, a
request switch, keyfob or Intelligent Key
(even if the door is unlocked by using the
inside lock knob or the power door lock
switch) .
How to stop an activated alarm
The alarm stops only by unlocking the driver’s
door with the key, pressing thebutton on
the keyfob or Intelligent Key, or by unlocking all
doors with any request switch (Intelligent Key
models) .
NISSAN VEHICLE IMMOBILIZER
SYSTEM
The NISSAN Vehicle Immobilizer System will not
allow the engine to start without the use of a
registered key.
If the engine fails to start using a registered key
(for example, when interference is caused by
another registered key, an automated toll road
device or automatic payment device on the key
ring) , restart the engine using the following pro-
cedures:
1. Leave the ignition switch in the ON position
for approximately 5 seconds.
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Audible reminder and warning when
the engine stops
When the P position selecting warning light
() in the instrument panel blinks in red:
cMake sure the selector lever is in the P
position.
When the chime sounds intermittently:
cMake sure the selector lever is in the P
position and the ignition switch is turned to
the LOCK position.
If the chime sounds continuously when the driv-
er’s door is opened, check the following:
cThe selector lever is in the P position and the
ignition switch is turned to the LOCK posi-
tion.
cThe mechanical key is not inserted into the
ignition switch.
cThe warning chime may stop when one of
the following is performed:
– Returning the ignition switch to the LOCK
position.
– Removing the mechanical key.
– Closing the doors.
Alarm and warning when the engine
starts
When the Intelligent Key system warning light
() blinks red and the outside buzzer
sounds, make sure the Intelligent Key is inside the
vehicle.
Warning for low battery power
When the Intelligent Key battery is low, the Intel-
ligent Key system warning light () will blink
green for about 30 seconds after the ignition
switch is turned to the ON position. This warning
is to let you know that the battery of the Intelligent
Key will run down soon. Replace it with a new
one. Refer to “Battery replacement” in the “Main-
tenance and do-it-yourself” section.
NISSAN recommends replacing the battery at a
NISSAN dealer.
Preventing the Intelligent Key from
being left in the vehicle
If you lock all doors using the power door lock
switch with the Intelligent Key in the vehicle, all of
the doors unlock immediately and the buzzer will
warn you when the door is closed.
3-20Pre-driving checks and adjustments
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TROUBLESHOOTING GUIDE
Symptom Possible Cause Remedy
When pushing the door handle request
switchThe front door beep sounds for approxi-
mately 2 seconds.The doors cannot be locked.Take out the Intelligent Key from the vehicle
and push the door handle request switch.
When closing the doorsThe front door beep sounds for approxi-
mately 10 seconds.The ignition knob is not turned to LOCK
position.Turn the ignition knob to LOCK.
The key warning light in the instrument
panel blinks in red and the front door warn-
ing beep sounds for approximately 3
seconds.The Intelligent Key is not in the vehicle. Be sure to carry the Intelligent Key with you.
The front door beep sounds for approxi-
mately 3 seconds and all doors unlock.The Intelligent Key is left in the vehicle. Take out the Intelligent Key from the vehicle
and close the door.
When opening the driver’s door A warning chime sounds continuously.The ignition knob is not in LOCK position,
or the mechanical key is inserted into the
ignition knob.Turn the ignition knob to LOCK.
Remove the mechanical key from the igni-
tion knob.
When stopping the engine The P (Park) position warning light in the
instrument panel blinks in red.The selector lever is not in the P (Park)
position.Make sure that the selector lever is in the P
(Park) position and turn the ignition knob to
LOCK.
When starting the engine The key warning light in the instrument
panel blinks in green.The battery charge is low. Replace the battery with a new one. See
“Battery replacement” in the “Maintenance
and do-it-yourself” section.
When turning the ignition switch A warning chime sounds continuously. The ignition switch is not turned to the
LOCK position.Turn the ignition switch to the LOCK
position.
When pushing the ignition switch The Intelligent Key system warning light in
the instrument panel illuminates red.The Intelligent Key is not in the vehicle. If the Intelligent Key system warning light
illuminates red even while you are carrying
the Intelligent Key, the battery is completely
discharged. Replace the battery with a new
one. See “Battery replacement” in the
“Maintenance and do-it-yourself” section.
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1. Pull the hood lock release handles1located
below the instrument panel until the hood
springs up slightly.
2. Locate the lever
s2in between the hood and
grille and push the lever sideways with your
fingertips.
3. Raise the hood
s3.
4. Remove the support rod
s4and insert it into
the slot on the underside of the hood
s5.
When closing the hood, first return the support
rod to its original position. Slowly move the hood
down to latch the lock. Push the hood down to
lock the hood securely into place.
WARNING
cMake sure the hood is completely
closed and latched before driving. Fail-
ure to do so could cause the hood to fly
open and result in an accident.
cIf you see steam or smoke coming from
the engine compartment, to avoid injury
do not open the hood.
WARNING
cDo not drive with the trunk lid open. This
could allow dangerous exhaust gases
to be drawn into the vehicle. See “Ex-
haust gas” in the “Starting and driving”
section of this manual.
cClosely supervise children when they
are around cars to prevent them from
playing and becoming locked in the
trunk where they could be seriously in-
jured. Keep the car locked, with the rear
seatback and trunk lid securely latched
when not in use, and prevent children’s
access to car keys.
WPD0383
HOODTRUNK LID
3-22Pre-driving checks and adjustments
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WARNING
cGasoline is extremely flammable and
highly explosive under certain condi-
tions. You could be burned or seriously
injured if it is misused or mishandled.
Always stop the engine and do not
smoke or allow open flames or sparks
near the vehicle when refueling.
cDo not attempt to top off the fuel tank
after the fuel pump nozzle shuts off
automatically. Continued refueling may
cause fuel overflow, resulting in fuel
spray and possibly a fire.
cUse only an original equipment type
fuel-filler cap as a replacement. It has a
built-in safety valve needed for proper
operation of the fuel system and emis-
sion control system. An incorrect cap
can result in a serious malfunction and
possible injury. It could also cause the
malfunction indicator light to come on.
cNever pour fuel into the throttle body to
attempt to start your vehicle.cDo not fill a portable fuel container in
the vehicle or trailer. Static electricity
can cause an explosion of flammable
liquid, vapor or gas in any vehicle or
trailer. To reduce the risk of serious
injury or death when filling portable fuel
containers:
– Always place the container on the
ground when filling.
– Do not use electronic devices when
filling.
– Keep the pump nozzle in contact
with the container while you are fill-
ing it.
– Use only approved portable fuel con-
tainers for flammable liquid.
CAUTION
cIf fuel is spilled on the vehicle body,
flush it away with water to avoid paint
damage.
cTighten until the fuel-filler cap clicks.
Failure to tighten the fuel-filler cap
properly may cause the
Mal-
function Indicator Light (MIL) to illumi-
nate. If the
light illuminates be-
cause the fuel-filler cap is loose or
missing, tighten or install the cap and
continue to drive the vehicle.
The
light should turn off after a
few driving trips. If the
light
does not turn off after a few driving
trips, have the vehicle inspected by a
NISSAN dealer.
cFor additional information, see the
“Malfunction Indicator Light (MIL)” in
the “Instruments and Controls” section
earlier in this manual.
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CAUTION
cDo not use leaded gasoline. Deposits
from leaded gasoline will seriously re-
duce the three-way catalyst’s ability to
help reduce exhaust pollutants.
cKeep your engine tuned up. Malfunc-
tions in the ignition, fuel injection, or
electrical systems can cause overrich
fuel flow into the three-way catalyst,
causing it to overheat. Do not keep driv-
ing if the engine misfires, or if notice-
able loss of performance or other un-
usual operating conditions are
detected. Have the vehicle inspected
promptly by a NISSAN dealer.
cAvoid driving with an extremely low fuel
level. Running out of fuel could cause
the engine to misfire, damaging the
three-way catalyst.
cDo not race the engine while warming it
up.
cDo not push or tow your vehicle to start
the engine.
TIRE PRESSURE MONITORING
SYSTEM (TPMS) (if so equipped)
Each tire, including the spare (if provided) ,
should be checked monthly when cold and in-
flated to the inflation pressure recommended by
the vehicle manufacturer on the vehicle placard
or tire inflation pressure label. (If your vehicle has
tires of a different size than the size indicated on
the vehicle placard or tire inflation pressure label,
you should determine the proper tire inflation
pressure for those tires.)
As an added safety feature, your vehicle has been
equipped with a Tire Pressure Monitoring System
(TPMS) that illuminates a low tire pressure telltale
when one or more of your tires is significantly
under-inflated. Accordingly, when the low tire
pressure telltale illuminates, you should stop and
check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a signifi-
cantly under-inflated tire causes the tire to over-
heat and can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life, and
may affect the vehicle’s handling and stopping
ability.
Please note that the TPMS is not a substitute for
proper tire maintenance, and it is the driver’s
responsibility to maintain correct tire pressure,even if under-inflation has not reached the level to
trigger illumination of the TPMS low tire pressure
telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when the
system is not operating properly. The TPMS mal-
function indicator is combined with the low tire
pressure telltale. When the system detects a
malfunction, the telltale will flash for approxi-
mately one minute and then remain continuously
illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the mal-
function exists. When the malfunction indicator is
illuminated, the system may not be able to detect
or signal low tire pressure as intended. TPMS
malfunctions may occur for a variety of reasons,
including the installation of replacement or alter-
nate tires or wheels on the vehicle that prevent
the TPMS from functioning properly. Always
check the TPMS malfunction telltale after replac-
ing one or more tires or wheels on your vehicle to
ensure that the replacement or alternate tires and
wheels allow the TPMS to continue to function
properly.
Additional information:
cThe TPMS does not monitor the tire pres-
sure of the spare tire.
Starting and driving5-3
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