ECU NISSAN ALTIMA SEDAN 2015 Repair Manual

REPLACING SPARK PLUGS
Iridium-tipped spark plugs
It is not necessary to replace iridium-tippedA
spark plugs as frequently as conventional type
spark plugs because they last much longer. Fol-
low the maintenance log shown in the “NISSAN
Service and Maintenance Guide”. Do not service
iridium-tipped spark plugs by cleaning or regap-
ping.● QR25DE: Always replace spark plugs
with recommended ones.
● VQ35DE: Always replace spark plugs
with recommended or equivalent ones.
WARNING
Be sure the engine and ignition switch are
off and that the parking brake is engaged
securely.
CAUTION
Be sure to use the correct socket to re-
move the spark plugs. An incorrect socket
can damage the spark plugs.
If replacement is required, see your NISSAN
dealer for assistance.
NOTE:
The air cleaner filter should not be cleaned
and reused.
Replace the air cleaner filter according to the
maintenance log shown in the “Warranty Informa-
tion and Maintenance Booklet.”
SDI1895
QR25DE
LDI2117
SPARK PLUGS AIR CLEANER
Maintenance and do-it-yourself8-21

If a typeAfuse is used to replace a typeBfuse,
the type
Afuse 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
Bfuses cannot be installed in the under-
hood fuse boxes. Only use type
Afuses 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.
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
tab and lifting the cover up.
4. Remove the fuse with the fuse puller. The fuse puller is located in the center of the fuse
block in the passenger compartment.
LDI0457LDI2133
Maintenance and do-it-yourself8-25

NISSAN INTELLIGENT KEY®
Replace the battery in the Intelligent Key as fol-
lows:1. Remove the mechanical key from the Intelli- gent Key.
2. Insert a small screwdriver
Ainto the slitB
of the corner and twist it to separate the
upper part from the lower part. Use a cloth to
protect the casing.
3. Replace the battery with a new one. Recommended battery: CR2032 or equiva-
lent.
●Do not touch the internal circuit and elec-
tric terminals as doing so could cause a
malfunction.
● Hold the battery by the edges. Holding
the battery across the contact points will
seriously deplete the storage capacity.
● Make sure that the + side faces the bot-
tom of the case. 4. Close the lid securely as illustrated with
C
andD.
5. Operate the buttons to check the operation.
See a NISSAN dealer if you need assistance for
replacement.
FCC Notice:
For USA:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device may
not cause harmful interference, and (2) this
device must accept any interference re- ceived, including interference that may
cause undesired operation.
Note: Changes or modifications not ex-
pressly approved by the party responsible
for compliance could void the user’s au-
thority to operate the equipment.
For Canada:
This device complies with Industry Canada
licence-exempt RSS standard(s) . Opera-
tion is subject to the following two condi-
tions: (1) this device may not cause inter-
ference, and (2) this device must accept any
interference, including interference that
may cause undesired operation of the de-
vice.
WDI0568
Maintenance and do-it-yourself8-29

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.
TIRE CHAINS
CAUTION
Only certain SAE class “S” tire chains can
be used on this vehicle. Using the wrong
Class “S” chains on this vehicle will cause
damage to the vehicle. If you plan to use
tire chains/cables, you should use a tire
chain that meets the minimum clearances
for your vehicle.Use of tire chains may be prohibited according to
location. Check the local laws before installing
tire chains. When installing tire chains, make sure
they are the proper size for the tires on your
vehicle and are installed according to the chain
manufacturer’s suggestions. Use a tire chain that
is designed to provide the specified space
A
between the installed tire chain1and where the
tire meets the rim
2as shown on the chart. NOTE:
Tire chains are not permitted for use with
18 in wheels.
Wheel size Minimum space required
16 in .7 in (17 mm)
17 in .2 in (4 mm)
A tire chain that provides the specified amount of
space will provide the necessary clearance be-
tween the tire and the closest vehicle suspension
or body component. The minimum clearances are
determined using the factory-equipped tires.
Other types may damage your vehicle. Use chain
tensioners when recommended by the tire chain
manufacturer 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 damaged and/or
vehicle handling and performance may be ad-
versely affected.
Tire chains must be installed only on the
front wheels and not on the rear wheels.
Never install tire chains on a TEMPORARY USE
ONLY spare tire.
LDI0574
8-44Maintenance and do-it-yourself

5. Determine the combined weight ofluggage and cargo being loaded on
the vehicle. That weight may not
safely exceed the available cargo and
luggage load capacity calculated in
step 4.
Before driving a loaded vehicle, confirm
that you do not exceed the Gross Vehicle
Weight Rating (GVWR) or the Gross Axle
Weight Rating (GAWR) for your vehicle.
For additional information, refer to “Mea-
surement of weights” in this section.
Also check tires for proper inflation pres-
sures. For additional information, refer to
the Tire and Loading Information label.
LOADING TIPS
● The GVW must not exceed GVWR
or GAWR as specified on the
F.M.V.S.S./C.M.V.S.S. certification
label.
● Do not load the front and rear axle to
the GAWR. Doing so will exceed the
GVWR.
WARNING
● Properly secure all cargo with
ropes or straps to help prevent it
from sliding or shifting. Do not
place cargo higher than the seat-
backs. In a sudden stop or colli-
sion, unsecured cargo could
cause personal injury.
● Do not load your vehicle any
heavier than the GVWR or the
maximum front and rear GAWRs.
If you do, parts of your vehicle can
break, tire damage could occur,
or it can change the way your
vehicle handles. This could result
in loss of control and cause per-
sonal injury.
● Overloading not only can shorten
the life of your vehicle and the
tire, but can also cause unsafe
vehicle handling and longer brak-
ing distances. This may cause a
premature tire failure which
could result in a serious accident
and personal injury. Failures
caused by overloading are not
covered by the vehicle’s warranty.MEASUREMENT OF WEIGHTS
Secure loose items to prevent weight
shifts that could affect the balance of your
vehicle. When the vehicle is loaded, drive
to a scale and weigh the front and the rear
wheels separately to determine axle
loads. Individual axle loads should not ex-
ceed either of the gross axle weight rat-
ings (GAWR) . The total of the axle loads
should not exceed the gross vehicle
weight rating (GVWR) . These ratings are
given on the vehicle certification label. If
weight ratings are exceeded, move or re-
move items to bring all weights below the
ratings.
9-16
Technical and consumer information

For USA
If you believe that your vehicle has a de-
fect which could cause a crash or could
cause injury or death, you should immedi-
ately inform the National Highway Traffic
Safety Administration (NHTSA) in addi-
tion to notifying NISSAN.
If NHTSA receives similar complaints, it
may open an investigation, and if it finds
that a safety defect exists in a group of
vehicles, it may order a recall and remedy
campaign. However, NHTSA cannot be-
come involved in individual problems be-
tween you, your dealer, or NISSAN.
To contact NHTSA, you may call the Ve-
hicle Safety Hotline toll-free at 1-888-
327-4236 (TTY: 1-800-424-9153); go
to http://www.safercar.gov; or write to:
Administrator, NHTSA, 400 Seventh
Street, SW., Washington, D.C. 20590.
You can also obtain other information
about motor vehicle safety from
http://www.safercar.gov.You may notify NISSAN by contacting our
Consumer Affairs Department, toll-free, at
1-800-NISSAN-1.
For Canada
If you believe that your vehicle has a de-
fect which could cause a crash or could
cause injury or death, you should immedi-
ately inform Transport Canada in addition
to notifying NISSAN.
If Transport Canada receives complaints,
it may open an investigation, and if it finds
that a safety defect exists in a group of
vehicles, it may request that NISSAN con-
duct a recall campaign. However, Trans-
port Canada cannot become involved in
individual problems between you, your
dealer, or NISSAN.
You may contact Transport Canada’s De-
fect Investigations and Recalls Division
toll free at 1-800-333-0510. You may
also report safety defects online at:
https://wwwapps.tc.gc.ca/Saf-Sec-Sur/
7/PCDB-BDPP/fc-cp.aspx?lang=eng
(English speakers) orhttps://wwwapps.tc.gc.ca/Saf-Sec-Sur/
7/PCDB-BDPP/fc-cp.aspx?lang=fra
(French speakers)
Additional information concerning motor
vehicle safety may be obtained from Trans-
port Canada’s Road Safety Information
Centre at 1-800-333-0371 or online at
www.tc.gc.ca/roadsafety (English speak-
ers) or www.tc.gc.ca/securiteroutiere
(French speakers) .
To notify NISSAN of any safety concerns
please contact our Consumer Information
Centre toll free at 1-800-387-0122.
REPORTING SAFETY DEFECTS
Technical and consumer information9-19

10 Index
A
ABS (Anti-lock Braking System) ........5-32
Air bag (See supplemental restraint
system) .....................1-41
Air bag system Front (See supplemental front impact air
bag system) .................1-48
Airbagwarninglight...........1-59,2-14
Air bag warning light, supplemental . .1-59, 2-14
Air cleaner housing filter ............8-21
Air conditioner Air conditioner operation ..........4-28
Air conditioner service ...........4-35
Air conditioner specification label .....9-12
Air conditioner system refrigerant and
oil recommendations .............9-7
Air conditioner system refrigerant
recommendations ..............9-7
Heater and air conditioner
controls................4-25,4-33
Servicing air conditioner ..........4-35
Airflowcharts..................4-29
Alarm system (See vehicle security system). .2-27
Anchor point locations .............1-24
Antenna .....................4-82
Anti-lock brake warning light ......2-10,2-11
Anti-lock Braking System (ABS) ........5-32
Apps .......................4-83
Armrests .....................1-7
Audible reminders ...............2-17
Audio system ..................4-35 AMradioreception.............4-36
Bluetooth®audio..........4-78,4-79
Bluetooth® streaming audio
........4-79
Compact disc (CD)
player ......4-45,4-49,4-54,4-60,4-67
FM-AM radio with compact disc (CD)
player ....................4-43
FM/AM/SAT radio with compact disc (CD)
player..........4-47,4-51,4-56,4-62
FMradioreception.............4-35
iPod® Player .............4-73,4-75
iPod® player operation .......4-73,4-75
Radio ....................4-35
USB interface ............4-68,4-70
USB (Universal Serial Bus) Connection
Port..................4-68,4-70
Autolight switch .................2-33
Automatic Automatic power window switch .....2-46
Automatic anti-glare inside mirror .......3-36
Automatic door locks ..............3-6
AUXjack.................4-46,4-68
B
Battery ..................5-39,8-17
Chargewarninglight............2-11
Battery replacement NISSAN Intelligent Key® ..........8-29
Before starting the engine ...........5-11
Belt (See drive belt) ..............8-20 Block heater
Engine ....................5-40
Bluetooth® audio ............4-78,4-79
Bluetooth® hands-free phone
system..............4-85,4-99,4-110
Bluetooth® streaming audio with Navigation
System .....................4-79
Boosterseats..................1-37
Brake Anti-lock Braking System (ABS) ......5-32
Brake fluid ..................8-15
Brakelight(Seestoplight).........8-33
Brake system ................5-32
Brakewarninglight.............2-11
Brakewearindicators........2-17,8-24
Parking brake operation ..........5-19
Self-adjusting brakes ............8-24
Brake fluid ....................8-15
Brakes ......................8-24
Brake system ..................5-32
Break-inschedule ...............5-28
Brightness/contrast button ...........4-9
Brightness control Instrument panel ..............2-35
Bulb check/instrument panel ..........2-10
Bulbreplacement................8-33
C
Capacities and recommended fuel/lubricants..9-2
Cargo (See vehicle loading information) . . .9-13
Car phone or CB radio .............4-84

J
Jump starting ................6-8,8-19
K
Key.........................3-2
Keyless entry With Intelligent Key system
(See Intelligent Key system) .....3-13,3-21
Keys NISSAN Intelligent Key® ..........3-20
L
Labels Air conditioner specification label .....9-12
C.M.V.S.S. certification label ........9-11
Emissioncontrolinformationlabel.....9-12
Engine serial number ............9-11
F.M.V.S.S. certification label .........9-11
Tire and Loading Information label .....9-12
Vehicle identification number (VIN) .....9-10
Vehicle identification number (VIN) plate . .9-10
Warning labels (for SRS) ..........1-59
LATCH (Lower Anchors and Tethers for CHildren)
System ......................1-22
License plate Installing the license plate ..........9-13
Light Airbagwarninglight.........1-59,2-14
Brake light (See stop light) .........8-33
Bulb check/instrument panel ........2-10
Bulb replacement ..............8-33 Charge warning light
............2-11
Consolelight.................2-49
Foglights...................8-30
Foglightswitch ...............2-36
Headlight and turn signal switch ......2-31
Headlight control switch ..........2-33
Headlights..................8-30
Interiorlight..................2-49
Lightbulbs..................8-30
Low tire pressure warning light .......2-12
Low windshield-washer fluid warning
light......................2-26
Passenger air bag and status light .....1-50
Personal lights ................2-50
Security indicator light ............2-16
Spotlights(Seemaplight) .........2-50
Trunklight ..................2-50
Warning/indicator lights and audible
reminders ...............2-10,2-14
Lights Maplights ..................2-50
Lock Child safety rear door lock ..........3-7
Door locks ...................3-4
Fuel-filler door lock opener lever ......3-32
Gloveboxlock................2-43
Power door locks ............3-5,3-6
Trunk lid lock opener lever ..........3-30
Loose fuel cap warning ..........2-27,3-32
Lowfuelwarninglight ..........2-13,2-25
Low tire pressure warning light .........2-12
Low windshield-washer fluid warning light . . .2-26
Luggage (See vehicle loading information) . .9-13 M
Maintenance General maintenance .............8-2
Insidethevehicle...............8-3
Maintenance precautions ...........8-5
Outside the vehicle ..............8-2
Seat belt maintenance ............1-18
Under the hood and vehicle .........8-4
Maintenance requirements ............8-2
Malfunction indicator light ............2-15
Manual front seat adjustment ...........1-2
Maplights ....................2-50
Mappocket....................2-41
Meters and gauges ................2-3
Instrument brightness control ........2-35
Mirror Automatic anti-glare inside mirror ......3-36
Inside mirror .................3-36
Outside mirror control ............3-38
Outside mirrors ............... 3

-38
Vanity mirror .................3-36
Mirrors ......................3-36
Mobileapps ...................4-83
Moonroof .....................2-47
N
NissanConnect
SM................4-83
NISSAN Intelligent Key® ............3-20
NISSAN vehicle immobilizer
system ................2-28,3-4,5-11
NISSAN voice recognition system ......4-118
10-4

SeatsAdjustment ...................1-2
Armrests....................1-7
Frontseats...................1-2
Heatedseats.................2-37
Manual front seat adjustment .........1-2
Rear seat ....................1-5
Security indicator light ..............2-16
Security system (NISSAN vehicle immobilizer
system) , engine start ........2-28,3-4,5-11
Security systems Vehicle security system ...........2-27
Self-adjusting brakes ..............8-24
Service manual order form ...........9-21
Servicing air conditioner .............4-35
Setting button ...................4-7
Shifting Continuously Variable Transmission
(CVT) .....................5-14
Shift lever lock release..............5-17
Shoulder belt height adjustment ........1-17
Smartphone connectivity ............4-83
Sonar Rear system .................5-36
Spark plug replacement .............8-21
Spark plugs ...................8-21
Specifications ...................9-8
Speedometer ...................2-4
Spotlights(Seemaplight) ...........2-50
SRS warning label ................1-59
Stability control .................5-34
Starting Before starting the engine ..........5-11
Jump starting ..............6-8,8-19
Precautions when starting and driving ....5-2
Push starting .................6-10 Starting the engine
.............5-12
Starting the engine ...............5-12
Steering Heated steering wheel ...........2-38
Power steering fluid .............8-15
Power steering system ...........5-31
Stoplight.....................8-33
Storage......................2-41
Sunglassescase.................2-41
Sunglassesholder................2-41
Sunroof......................2-47
Sunroof(seeMoonroof).............2-47
Sun visors ....................3-35
Supplemental air bag warning light . . .1-59, 2-14
Supplemental front impact air bag system . . .1-48
Supplemental restraint system Information and warning labels .......1-59
Precautions on supplemental restraint
system ....................1-41
Supplemental restraint system
(Supplemental air bag system) .........1-41
Switch Autolightswitch...............2-33
Automatic power window switch ......2-46
Foglightswitch ...............2-36
Hazard warning flasher switch ........6-2
Headlight and turn signal switch ......2-31
Headlight control switch ..........2-33
Instrument brightness control ........2-35
Power door lock switch .........3-5,3-6
Rear window and outside mirror defroster
switch.....................2-31
Turn signal switch ..............2-35
Vehicle dynamic control (VDC) off switch. .2-39
Windshield wiper and washer switch . . .2-29 T
Tachometer ....................2-5
Temperature gauge Engine coolant temperature gauge .....2-5
Theft (NISSAN vehicle immobilizer system) ,
engine start .............2-28,3-4,5-11
Three-way catalyst ................5-2
Tilt Telescopic steering .............3-35
Tire Flat tire .....................6-3
Spare tire ................6-5,8-48
Tire and Loading Information label .....9-12
Tire chains ..................8-44
Tire placard ..................9-12
Tire pressure .................8-36
Tire rotation..................8-45
Types of tires .................8-43
Uniform tire quality grading .........9-17
Wheels and tires ...............8-36
Wheel/tire size .................9-9
Tire pressure Low tire pressure warning light .......2-12
Tire Pressure Monitoring System (TPMS) ....5-3
Towing Flattowing..................9-17
Towtrucktowing...............6-11
Trailer towing .................9-17
Towing a trailer ..................9-17
Transceiver HomeLink® Universal
Transceiver .......2-51,2-53,2-53,2-54
10-6

TransmissionContinuously Variable Transmission (CVT)
fluid......................8-14
Driving with Continuously Variable
Transmission (CVT) .............5-13
Transmission shift lever lock release ......5-17
Travel (See registering your vehicle in another
country) ......................9-10
Trip odometer ...................2-4
Troubleshooting guide (NISSAN voice recognition
system) .....................4-122
Trunk access through the rear seat .......1-5
Trunk lid lock opener lever ............3-30
Trunklight ....................2-50
Turn signal switch ................2-35
U
Uniform tire quality grading ...........9-17
USB interface ...............4-68,4-70
Audio file operation ..........4-69,4-71
V
Vanity mirror ...................3-36
Variable voltage control system .........8-20
Vehicledimensionsandweights.........9-9
Vehicle dynamic control (VDC) off switch . . .2-39
Vehicle dynamic control (VDC) system .....5-34
Vehicle Dynamic Control (VDC) system ....5-34
Vehicle identification ...............9-10
Vehicle identification number (VIN) .......9-10
Vehicle identification number (VIN)
(Chassis number) ................9-10 Vehicle identification number (VIN) plate
....9-10
Vehicle immobilizer system .....2-28,3-4,5-11
Vehicle loading information ...........9-13
Vehicle recovery .................6-13
Vehicle security system .............2-27
Vehicle security system (NISSAN vehicle immobi-
lizer system) , engine start ......2-28,3-4,5-11
Ventilators ....................4-24
Visors.......................3-35
Voice Prompt
Interrupt.........4-88,4- 101, 4-102, 4-112
Voice recognition system ...........4-118
W
Warning Airbagwarninglight.........1-59,2-14
Anti-lock brake warning light .....2-10,2-11
Battery charge warning light ........2-11
Brake warning light .............2-11
Hazard warning flasher switch ........6-2
Loose fuel cap warning ........2-27,3-32
Lowfuelwarninglight ........2-13,2-25
Low tire pressure warning light .......2-12
Low windshield-washer fluid warning
light......................2-26
Passenger air bag and status light .....1-50
Seatbeltwarninglight........1-14,2-14
Supplemental air bag warning light .1-59, 2-14
Vehicle security system ...........2-27
Warning/indicator lights and audible
reminders...............2-10,2-14
Warning labels (for SRS) ..........1-59
Warning/indicator lights and audible
reminders.................2-10,2-14 Audiblereminders ..........2-10,2-14
Indicatorlights ............2-10,2-14
Warning lights
.............2-10,2-14
Warning lights ...............2-10,2-14
Washer switch Windshield wiper and washer switch . . .2-29
Weights (See dimensions and weights) .....9-9
Wheels and tires .................8-36
Wheel/tire size ...................9-9
When traveling or registering your vehicle in
another country .................9-10
Windows .....................2-44
Locking passengers’ windows .......2-46
Power rear windows .............2-46
Power windows ...............
2-
44
Rear power windows ............2-46
Windshield-washerfluid.............8-16
Windshieldwiperandwasherswitch .....2-29
Windshieldwiperblades............8-22
Wiper Windshield wiper and washer switch . . .2-29
Wiperblades.................8-22
10-7