check engine NISSAN SENTRA 2007 B16 / 6.G Service Manual

If the brakes do not operate properly, have the
brakes checked by a NISSAN dealer.
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.
WARNING
See a NISSAN dealer for a brake system
check if the brake pedal height does not
return to normal.
Brake pad wear indicators
The disc brake pads on your vehicle have audible
wear indicators. When a brake pad requires re-
placement, a high pitched scraping or screech-
ing sound will be heard when the vehicle is in
motion. The noise will be heard 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, occa-
sional brake squeak, squeal or other noise may
be heard. Occasional brake noise during light to
moderate stops is normal and does not affect the
function or performance of the brake system.Proper brake inspection intervals should
be followed.For more information regarding
brake inspections, see the appropriate mainte-
nance schedule information in the “NISSAN Ser-
vice and Maintenance Guide”.
Two types of fuses are used. Type A is used in the
fuse boxes in the engine compartment. Type B is
used in the passenger compartment fuse box.
Type A fuses are provided as spare fuses. They
are stored in the passenger compartment fuse
box.
Type A fuses can be installed in the engine com-
partment and passenger compartment fuse
boxes.
LDI0455
BRAKESFUSES
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If a type A fuse is used to replace a type B fuse,
the type A fuse will not be level with the fuse
pocket as shown in the illustration. This will not
affect the performance of the fuse. Make sure the
fuse is installed in the fuse box securely.
Type B fuses cannot be installed in the under-
hood fuse boxes. Only use type A fuses in the
underhood fuse boxes.
ENGINE COMPARTMENT
CAUTION
Never use a fuse of a higher or lower
amperage rating than specified on the
fuse box cover. This could damage the
electrical system or cause a fire.NOTE:
For checking and replacing fuses on
QR25DE engine models, see a NISSAN
dealer.
If any electrical equipment does not come on,
check for an open fuse.
1. Be sure the ignition switch and the headlight
switch are OFF.
2. Open the engine hood.
3. Remove the fuse box cover by pushing the
tabs
sAand lifting the cover up from the
front
sB.
4. Remove the fuse with the fuse puller. The
fuse puller is located in the center of the fuse
block in the passenger compartment.LDI0457
(MR20DE engine)
LDI0542
8-22Maintenance and do-it-yourself
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of appropriate cosolvents and corro-
sion inhibitors. If not properly formu-
lated with appropriate cosolvents and
corrosion inhibitors, such methanol
blends may cause fuel system damage
and/or vehicle performance problems.
At this time, sufficient data is not avail-
able to ensure that all methanol blends
are suitable for use in NISSAN ve-
hicles.
If any driveability problems such as engine stall-
ing and difficult hot-starting are experienced 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 refu-
eling. Gasoline containing oxygenates can
cause paint damage.
E–85 fuel
E-85 fuel is a mixture of approximately 85% fuel
ethanol and 15% unleaded gasoline. E-85 can
only be used in a Flexible Fuel Vehicle (FFV) . Do
not use E-85 in your vehicle. U.S. government
regulations require fuel ethanol dispensing
pumps to be identified by a small, square, orange
and black label with the common abbreviation or
the appropriate percentage for that region.
Aftermarket fuel additives
NISSAN does not recommend the use of any
aftermarket fuel additives (for example, fuel injec-
tor cleaner, octane booster, intake valve deposit
removers, 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
Using unleaded gasoline with an octane
rating lower than recommended can cause
persistent, heavy “spark knock.” (“Spark
knock” is a metallic rapping noise.) If se-
vere, 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 a NISSAN 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 and/or overheating, which may
cause excessive fuel consumption or enginedamage. If any of the above symptoms are en-
countered, have your vehicle checked at a
NISSAN dealer.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is not a
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.CAUTION
cYour vehicle is not designed to run on
E-85 fuel. Using E-85 fuel in a vehicle
not specifically designed for E-85 fuel
can damage fuel system components
and is not covered by the NISSAN new
vehicle limited warranty.
cE-85 is a mixture of approximately 85%
fuel ethanol and 15% unleaded
gasoline.
cU.S. government regulations require
ethanol dispensing pumps to be identi-
fied by a small, square, orange and
black label with the common abbrevia-
tion or the appropriate percentage for
that region.
9-4Technical and consumer information
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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 adversely
affect vehicle/trailer handling, possibly caus-
ing vehicle sway. When being passed by
larger vehicles, be prepared for possible
changes in crosswinds that could affect ve-
hicle handling.
Do the following if the trailer begins to sway:
1. Take your foot off the accelerator pedal to
allow the vehicle to coast and steer as
straight ahead as the road conditions allow.
This combination will help stabilize the ve-
hicle
- Do not correct trailer sway by steering or
applying the brakes.
2. When the trailer sway stops, gently apply the
brakes and pull to the side of the road in a
safe area.
3. Try to rearrange the trailer load so it is bal-
anced as described earlier in this section.
cBe careful when passing other vehicles.
Passing while towing a trailer requires con-
siderably more distance than normal pass-
ing. Remember, the length of the trailer mustalso pass the other vehicle before you can
safely change lanes.
cDown shift the transmission to a lower gear
for engine braking when driving down steep
or long hills. This will help slow the vehicle
without applying the brakes.
cTo maintain engine braking efficiency and
electrical charging performance, do not use
overdrive.
cAvoid holding the brake pedal down too long
or too frequently. This could cause the
brakes to overheat, resulting in reduced
braking efficiency.
cIncrease your following distance to allow for
greater stopping distances while towing a
trailer. Anticipate stops and brake gradually
cDo not use cruise control while towing a
trailer.
cSome states or provinces have specific
regulations and speed limits for vehicles that
are towing trailers. Obey the local speed
limits.
cCheck your hitch, trailer wiring harness con-
nections, and trailer wheel lug nuts after 50
miles (80 km) of travel and at every break.cWhen stopped in traffic for long periods of
time in hot weather, put the vehicle in the P
(Park) position.
cWhen launching a boat, don’t allow the wa-
ter level to go over the exhaust tail pipe or
rear bumper.
cMake sure you disconnect the trailer lights
before backing the trailer into the water or
the trailer lights may burn out.
When towing a trailer, transmission fluid
should be changed more frequently. For
additional information, see the “Mainte-
nance and do-it-yourself” section earlier in
this manual.
FLAT TOWING
Towing your vehicle with all four wheels on the
ground is sometimes called flat towing. This
method is sometimes used when towing a vehicle
behind a recreational vehicle, such as a motor
home.
CAUTION
cFailure to follow these guidelines can
result in severe transmission damage.
cWhenever flat towing your vehicle, al-
ways tow forward, never backward.
Technical and consumer information9-23
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Due to legal requirements in some states and
Canadian Provinces, your vehicle may be re-
quired to be in what is called the “ready condi-
tion” for an Inspection/Maintenance (I/M) test of
the emission control system.
The vehicle is set to the “ready condition” when it
is driven through certain driving patterns. Usually,
the ready condition can be obtained by ordinary
usage of the vehicle.
If a powertrain system component is repaired or
the battery is disconnected, the vehicle may be
reset to a “not ready” condition. Before taking the
I/M test, check the vehicle’s
inspection/maintenance test readiness condi-
tion. Turn the ignition switch ON without starting
the engine. If the Malfunction Indicator Light
(MIL) comes on steady for 20 seconds and then
blinks for 10 seconds , the I/M test condition is
9not ready9. If the MIL does not blink after 20
seconds, the I/M test condition is9ready.9If the
MIL indicates the vehicle is in a9not ready9con-
dition, drive the vehicle through the following
pattern to set the vehicle to the ready condition. If
you cannot or do not want to perform the driving
pattern, a NISSAN dealer can conduct it for you.WARNING
Always drive the vehicle in a safe and
prudent manner according to traffic con-
ditions and obey all traffic laws.
1. Start the engine when the engine coolant
temperature gauge needle points to C. Al-
low the engine to idle until the gauge needle
points between the C and H (normal oper-
ating temperature) .
2. Accelerate the vehicle to 55 MPH (88
km/h) , then quickly release the accelerator
pedal completely and keep it released for at
least 10 seconds.
3. Quickly depress the accelerator pedal for a
moment, then drive the vehicle at a speed of
53 - 60 MPH (86 - 96 km/h) for at least 9
minutes.
4. Stop the vehicle.
5. Accelerate the vehicle to 35 MPH (55 km/h)
and maintain the speed for 20 seconds.
6. Repeat steps 4 through 5 at least 10 times.
7. Accelerate the vehicle to 55 MPH (88 km/h)
and maintain the speed for at least 3 min-
utes.8. Stop the vehicle. Place the transmission se-
lector lever in the P (Park) or N (Neutral)
position.
9. Turn the engine off.
10. Repeat steps1-8atleast one more time.
If steps 1 through 7 are interrupted, repeat the
preceding step. Any safe driving mode is accept-
able between steps. Do not stop the engine until
step 7 is completed.
READINESS FOR INSPECTION/
MAINTENANCE (I/M) TEST
9-26Technical and consumer information
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10 Index
A
Active Head Restraint..............1-8
Air bag (See supplemental restraint
system).....................1-41
Air bag system
Front (See supplemental front impact
air bag system)...............1-49
Side and curtain (See supplemental side
air bag and curtain side-impact air bag
system)...................1-53
Air bag warning labels.............1-56
Air bag warning light...........1-56, 2-12
Air cleaner housing filter............8-18
Air conditioner
Air conditioner operation..........4-10
Air conditioner service...........4-14
Air conditioner specification label.....9-13
Air conditioner system refrigerant and oil
recommendations..............9-6
Heater and air conditioner controls.....4-7
Servicing air conditioner..........4-14
Air flow charts..................4-11
Alarm system
(See vehicle security system).........2-15
Anchor point locations.............1-26
Antenna.....................4-36
Anti-lock brake warning light..........2-9
Anti-lock Braking System (ABS)........5-24
Armrests.....................1-7
Audible reminders................2-14Audio system..................4-15
Compact Disc (CD) changer.......4-32
Compact disc (CD) player.....4-23, 4-27
FM/AM radio with compact disc (CD)
player....................4-21
FM/AM/SAT radio with compact
disc (CD) changer.............4-29
FM/AM/SAT radio with compact
disc (CD) player...............4-25
Radio....................4-15
Steering wheel audio control switch. . . .4-35
Automatic
Automatic power window switch.....2-31
Transmission selector lever
lock release.................5-15
AUX jack.................4-23, 4-28
Average speed..................4-4
B
Battery......................8-15
Charge warning light.............2-9
Before starting the engine............5-9
Belt (See drive belt)..............8-16
BluetoothThands-free phone system.....4-37
Booster seats..................1-36
Brake
Anti-lock Braking System (ABS)......5-24
Brake fluid..................8-13
Brake light (See stop light).........8-28
Brake system................5-23Brake warning light..............2-9
Brake wear indicators........2-14, 8-21
Parking brake operation..........5-18
Self-adjusting brakes............8-21
Brakes......................8-21
Break-in schedule................5-20
Brightness control
Instrument panel..............2-21
Bulb check/instrument panel..........2-8
Bulb replacement................8-28
C
Capacities and recommended
fuel/lubricants...................9-2
Car phone or CB radio.............4-36
Cargo (See vehicle loading information) . . .9-14
CD care and cleaning.............4-34
CD changer (See audio system)........4-32
CD player (See audio system).....4-23, 4-27
Child restraint with top tether strap......1-26
Child restraints.......1-11, 1-12, 1-22, 1-24
Precautions on child
restraints............1-22, 1-30, 1-36
Top tether strap anchor point locations . .1-26
Child safety rear door lock............3-6
Chimes, audible reminders...........2-14
Cleaning exterior and interior..........7-2
Clock......................4-22
(models without navigation system).....4-5
Clock set.....................4-5
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Clutch
Clutch fluid.................8-14
C.M.V.S.S. certification label..........9-12
Cold weather driving..............5-25
Compact disc (CD) player.......4-23, 4-27
Continuously Variable Transmission (CVT) . .5-11
Continuously Variable Transmission
(CVT) fluid..................8-13
Driving with Continuously Variable
Transmission (CVT).............5-11
Control panel buttons
Clock set...................4-5
Setting button................4-5
Trip button..................4-3
Without navigation system..........4-2
Controls
Audio controls (steering wheel)......4-35
Heater and air conditioner controls.....4-7
Coolant
Capacities and recommended
fuel/lubricants.................9-2
Changing engine coolant..........8-9
Checking engine coolant level........8-8
Engine coolant temperature gauge.....2-6
Corrosion protection...............7-6
Cruise control..................5-19
Cup holders...................2-26
Curtain side-impact air bag system (See
supplemental side air bag and curtain
side-impact air bag system)..........1-53
D
Daytime running light system
(Canada only)..................2-20Defroster switch
Rear window and outside mirror
defroster switch...............2-19
Dimensions and weights.............9-9
Dimmer switch for instrument panel......2-21
Display controls
(see control panel buttons)...........4-2
Distance to empty................4-3
Door locks....................3-4
Door open warning................4-6
Door open warning light.............2-9
Drive belt....................8-16
Driving
Cold weather driving............5-25
Driving with Continuously Variable
Transmission (CVT).............5-11
Driving with manual transmission.....5-16
Precautions when starting and driving . . .5-2
E
Economy - fuel.................5-21
Emission control information label.......9-12
Emission control system warranty.......9-25
Engine
Before starting the engine..........5-9
Capacities and recommended
fuel/lubricants.................9-2
Changing engine coolant..........8-9
Changing engine oil............8-11
Changing engine oil filter..........8-12
Checking engine coolant level........8-8
Checking engine oil level..........8-9
Engine compartment check locations. . . .8-6
Engine coolant temperature gauge.....2-6Engine cooling system............8-8
Engine oil...................8-9
Engine oil and oil filter
recommendation...............9-5
Engine oil pressure warning light.....2-10
Engine oil viscosity..............9-5
Engine serial number............9-11
Engine specifications.............9-7
Starting the engine..............5-9
Engine oil pressure gauge............2-6
Event data recorders..............9-27
Exhaust gas (Carbon monoxide)........5-2
Eyeglass case..............2-25, 2-27
F
Flashers
(See hazard warning flasher switch)......2-22
Flat tire......................6-2
Floor mat positioning aid.............7-5
Fluid
Brake fluid..................8-13
Capacities and recommended
fuel/lubricants.................9-2
Clutch fluid.................8-14
Continuously Variable Transmission
(CVT) fluid..................8-13
Engine coolant................8-8
Engine oil...................8-9
Window washer fluid............8-14
F.M.V.S.S. certification label..........9-12
Fog light switch.................2-21
Folding rear seat............1-3, 1-4, 1-5
Front air bag system
(See supplemental restraint system).....1-49
10-2
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Light
Air bag warning light.........1-56, 2-12
Brake light (See stop light).........8-28
Bulb check/instrument panel........2-8
Bulb replacement..............8-28
Charge warning light.............2-9
Fog light switch...............2-21
Headlight and turn signal switch......2-19
Headlight control switch..........2-19
Headlights..................8-27
Interior light.................2-34
Light bulbs..................8-27
Low tire pressure warning light......2-11
Low washer fluid warning light.......2-12
Passenger air bag and status light.....1-50
Security indicator light...........2-14
Spotlights (See map light).........2-35
Trunk light..................2-36
Warning/indicator lights and audible
reminders...................2-8
Lights
Map lights..................2-35
Lock
Child safety rear door lock..........3-6
Door locks..................3-4
Fuel-filler door lock opener lever......3-24
Glove box lock...............2-27
Power door locks...............3-5
Trunk lid lock opener lever.........3-23
Low fuel warning light.............2-11
Low tire pressure warning light........2-11
Low washer fluid warning light.........2-12
Luggage (See vehicle loading information) . .9-14M
Maintenance
General maintenance............8-2
Inside the vehicle...............8-3
Maintenance precautions..........8-5
Outside the vehicle..............8-2
Seat belt maintenance...........1-22
Under the hood and vehicle.........8-4
Malfunction indicator light...........2-13
Manual front seat adjustment..........1-2
Manual windows................2-32
Map lights....................2-35
Map pocket...................2-23
Meters and gauges................2-3
Instrument brightness control.......2-21
Mirror
Inside mirror.................3-27
Outside mirror control...........3-27
Vanity mirror.................3-26
N
NISSAN vehicle immobilizer
system................2-16, 3-2, 5-9
O
Octane rating (See fuel octane rating).....9-4
Odometer.....................2-4
Oil
Capacities and recommended
fuel/lubricants.................9-2Changing engine oil............8-11
Changing engine oil filter..........8-12
Checking engine oil level..........8-9
Engine oil...................8-9
Engine oil and oil filter
recommendation...............9-5
Engine oil viscosity..............9-5
Outside mirror control.............3-27
Overheat
If your vehicle overheats..........6-10
Owner’s manual order form..........9-27
Owner’s manual/service manual
order information................9-27
P
Parking
Parking brake operation..........5-18
Parking/parking on hills...........5-22
Phone, BluetoothThands-free system. . . .4-37
Power
Power door locks...............3-5
Power outlet.................2-23
Power rear windows............2-31
Power steering system...........5-23
Power windows...............2-30
Rear power windows............2-31
Precautions
Maintenance precautions..........8-5
Precautions on child restraints . . .1-22, 1-30,
1-36
Precautions on seat belt usage.......1-9
Precautions on supplemental
restraint system...............1-41
Precautions when starting and driving . . .5-2
10-4
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