ignition NISSAN ALTIMA 2020 Owner´s Manual

5. If the fuse is openA, replace it with a
new fuse
B.
6. If a new fuse also opens, have the elec- trical system checked and repaired. It is
recommended that you visit a NISSAN
dealer for this service.
Fusible links
If the electrical equipment does not oper-
ate and fuses are in good condition, check
the fusible links. If any of these fusible links
are melted, replace with only Genuine
NISSAN parts.
PASSENGER COMPARTMENT
WARNING
Never use a fuse of higher or lower am-
perage rating than that specified on the
fuse box cover. This could damage the
electrical system or electronic control
units or cause a fire. If any electrical equipment does not oper-
ate, check for an open fuse.
1. Be sure the ignition switch and the headlight switch are in the OFF posi-
tion.
2. Remove the fuse box cover
Awith a
suitable tool. Use a cloth to avoid dam-
aging the trim.
LDI3200LDI3275
8-22Do-it-yourself

Af termarket fuel additives
NISSAN does not recommend the use of
any af termarket fuel additives (for ex-
ample, fuel injector 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 sol-
vents 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 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, it is recom-
mended that you 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, af ter-run and/or overheating,
which may cause excessive fuel consump-
tion or engine damage. If any of the above
symptoms are encountered, have your ve-
hicle checked. It is recommended that you
visit a NISSAN dealer for servicing.
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.
10-6Technical and consumer information

ENGINE
ModelPR25DDKR20DDET
Type Gasoline, 4-cycle, DOHCGasoline, 4-cycle, DOHC
Cylinder arrangement 4-cylinder, inline4-cylinder, inline
Bore x Stroke in (mm) 3.504 x 3.937 (89.0 x 100.0)
when compression ratio = 8 in (mm)3.307 x 3.547 (84.0 x 90.1)
when compression ratio = 14 in (mm)3.307 x 3.500 (84.0 x 88.9)
Displacement cu in (cm
3)151.85 (2,488)
when compression ratio = 8 cu in (cm3)121.86 (1,997)
when compression ratio = 14 cu in (cm3)120.22 (1,970)
Firing order 1–3–4–21–3–4–2
Idle speed
CVT in N (Neutral) position No adjustment is necessary.
Ignition timing (degree B.T.D.C. at idle speed)
CO%atidle
Spark plug DXE22H11CDILKAR7N9HG
Spark plug gap (Nominal) in (mm)0.043 (1.1) 0.035 (0.9)
Camshaf t operation Timing chainTiming chain
This spark ignition system complies with the Canadian standard ICES-002.
SPECIFICATIONS
Technical and consumer information10-9

WARNING
A vehicle equipped with All -Wheel Drive
(AWD) should never be tested using a
two wheel dynamometer (such as the
dynamometers used by some states for
emissions testing), or similar equip-
ment. Make sure you inform the test fa-
cility personnel that your vehicle is
equipped with AWD before it is placed
on a dynamometer. Using the wrong
test equipment may result in drivetrain
damage or unexpected vehicle move-
ment which could result in serious ve-
hicle damage or personal injury.
Due to legal requirements in some states
and Canadian Provinces, your vehicle may
be required to be in what is called the
“ready condition” 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 ve-
hicle.
If a powertrain system component is re-
paired or the battery is disconnected, the
vehicle may be reset to a “not ready” condi-
tion. Before taking the I/M test, check the vehicle’s inspection/maintenance test
readiness condition. Place the ignition
switch in the ON position 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 “not ready”. If the MIL does not
blink af ter 20 seconds, the I/M test condi-
tion is “ready”. It is recommended that you
visit a NISSAN dealer to set the “ready con-
dition” or to prepare the vehicle for testing.
This vehicle is equipped with an EDR. The
main purpose of an EDR is to record, in
certain collision or near collision-like situa-
tions, such as an air bag deployment or
hitting a road obstacle, data that will assist
in understanding how a vehicle’s systems
performed. The EDR is designed to record
data related to vehicle dynamics and
safety systems for a short period of time,
typically 30 seconds or less. The EDR in this
vehicle is designed to record such data as:
∙ How various systems in your vehicle were operating;
∙ Whether or not the driver and passen- ger safety belts were buckled/fastened;
∙ How far (if at all) the driver was depress- ing the accelerator and/or brake pedal;
and,
∙ How fast the vehicle was traveling.
∙ Sounds are not recorded.
These data can help provide a better un-
derstanding of the circumstances in which
collisions and injuries occur. NOTE: EDR
data are recorded by your vehicle only if a
nontrivial collision situation occurs; no data
are recorded by the EDR under normal driv-
ing conditions and no personal data (e.g.
name, gender, age and collision location)
READINESS FOR INSPECTION/
MAINTENANCE (I/M) TEST EVENT DATA RECORDERS (EDR)
Technical and consumer information10-21

FuelCapacities and recommended
fuel/lubricants...............10-2
Fuel economy ...............5-164
Fuel-filler door and cap ..........3-25
Fuel-filler door lock opener lever ....3-25
Fuel gauge ..................2-7
Fueloctanerating.............10-6
Fuel recommendation ..........10-4
Loose fuel cap warning .........2-35
Fuelefficientdrivingtips ..........5-163
Fuel-filler door .................3-25
Fuel gauge ....................2-7
Fuses .......................8-21
Fusiblelinks...................8-22
G
Garage door opener, HomeLink® Universal
Transceiver . . .2-67, 2-68, 2-69, 2-70, 2-70, 2-71
Gascap.....................3-25
Gauge Engine coolant temperature gauge . .2-6
Fuel gauge ..................2-7
Odometer ..................2-5
Speedometer ..............2-4,2-5
Tachometer .................2-6
Trip odometer .............2-4,2-5
General maintenance .............9-2
Glovebox....................2-59
Gloveboxlock.................2-59 H
Hazard warning flasher switch ........6-2
Headlight and turn signal switch ......2-45
Headlightcontrolswitch...........2-45
Headlights ...................8-25
Headrestraints................. .1-7
Heated seat switches ............2-52
Heated steering wheel ............2-53
Heater Heater and air conditioner
controls................4-29,4-38
Heater operation ..........4-30,4-39
Hill start assist system ............5-174
HomeLink® Universal
Transceiver . . .2-67, 2-68, 2-69, 2-70, 2-70, 2-71
Hood .......................3-22
Horn.......................2-52
I
Ignition switch Push-button ignition switch .......5-13
Immobilizer system ..........2-42,5-16
Important vehicle information label . . .10-12
In-cabinmicrofilter..............8-18
Increasing fuel economy ..........5-164
Indicator NISSAN Intelligent Key® battery discharge
indicator...................5-16
Indicator lights and audible reminders
(See warning/indicator lights and audible
reminders) ....................2-15
Inside automatic anti-glare mirror .....3-30
Instrument brightness control .......2-50Instrument panel
.............0-6,2-2
Instrument panel dimmer switch .....2-50
Intelligent Around View Monitor .......4-11
Intelligent Cruise Control (ICC)
(for vehicles without ProPILOT Assist) . . .5-66
Intelligent Cruise Control (ICC)
(for vehicles with ProPILOT Assist) . . . .5-102
Intelligent Driver Alertness (I-DA) .....5-159
Intelligent Forward Collision Warning
(I-FCW) .................... .5-147
Intelligent Key system Key operating range ............3-9
Key operation ................3-10
Mechanical key ...............3-3
Remote keyless entry operation ....3-14
Troubleshooting guide ..........3-17
Warning signals ...............3-17
Intelligent Lane Intervention (I-LI) .....5-39
Intelligent Trace Control (I-TC) .......5-174
Interiorlight...................2-66
I
nteriortrunklidrelease...........3-24
ISOFIX child restraints .............1-26
J
Jumpstarting...............6-9,8-15
K
Key........................ .3-2
Key fob battery replacement ........8-23
Keyless entry With Intelligent Key system
(See Intelligent Key system) .......3-14
11-3