2018 NISSAN TITAN check engine

CAUTION
Be sure to remove any old gasket mate-
rial remaining on the sealing surface of
the engine. Failure to do so could lead to
an oil leak and engine damage.7. Coat the gasket on the new filter with clean engine oil.
8. Screw on the oil filter until a slight resis- tance is felt, then tighten an additional
2/3 turn.
Oil filter tightening torque:
13 f t-lb (18 N·m)
9. Start the engine and check for leakage around the oil filter. Correct as required.
10. Install skid plate in reverse order of re- moval.
11. Turn the engine off and wait more than 15 minutes. Check the oil level. Add en-
gine oil if necessary.
FUEL FILTER REPLACEMENT (stage
1)
For additional information, refer to the “Ti-
tan Diesel Owner’s Manual”.
FUEL FILTER REPLACEMENT (stage
2)
For additional information, refer to the “Ti-
tan Diesel Owner’s Manual”.
DRAINING WATER
For additional information, refer to the “Ti-
tan Diesel Owner’s Manual”.
FUEL SYSTEM PRIMING
For additional information, refer to the “Ti-
tan Diesel Owner’s Manual”. For additional information, refer to the “Ti-
tan Diesel Owner’s Manual”.
AUTOMATIC REGENERATION
For additional information, refer to the “Ti-
tan Diesel Owner’s Manual”.
FUEL FILTER (CUMMINS 5.0L)
DIESEL PARTICULATE FILTER (DPF)
Do-it-yourself8-11

When checking or replacement is required,
it is recommended that you visit a NISSAN
dealer for this service.
CAUTION
∙ NISSAN recommends using GenuineNISSAN Matic K ATF. Do not mix with
other fluids.
∙ Do not use CVT fluid or manual trans- mission fluid in this transmission.
Damage caused by the use of fluids
other than as recommended is not
covered under NISSAN’s New Vehicle
Limited Warranty.
∙ Using fluids that are not equivalent to Genuine NISSAN Matic K ATF may also
damage the transmission. Damage
caused by the use of fluids other than
as recommended is not covered un-
der NISSAN’s New Vehicle Limited
Warranty.
The specified automatic transmission fluid
is also described on caution labels located
in the engine compartment. When checking or replacement is required,
it is recommended that you visit a NISSAN
dealer for this service.
CAUTION
∙ NISSAN recommends using Genuine
NISSAN Matic S ATF. Do not mix with
other fluids.
∙ Do not use CVT fluid or manual trans- mission fluid in this transmission.
Damage caused by the use of fluids
other than as recommended is not
covered under NISSAN’s New Vehicle
Limited Warranty.
∙ Using fluids that are not equivalent to Genuine NISSAN Matic S ATF may also
damage the transmission. Damage
caused by the use of fluids other than
as recommended is not covered un-
der NISSAN’s New Vehicle Limited
Warranty.
The specified automatic transmission fluid
is also described on caution labels located
in the engine compartment. Check the power steering fluid level when
the engine is stopped.
The fluid level should be between the COLD
MAX line and the COLD MIN line on the
power steering fluid reservoir at cold fluid
temperatures of 32° - 86°F (0° - 30°C) or at
the HOT MAX line on the power steering
fluid reservoir at hot fluid temperatures of
122° - 176°F (50° - 80°C).
LDI3077
6-SPEED AUTOMATIC
TRANSMISSION FLUID (ATF) (diesel
engine only)
7-SPEED AUTOMATIC
TRANSMISSION FLUID (ATF)
(gasoline engine only)POWER STEERING FLUID
8-12Do-it-yourself

∙ If the battery is labeled "do not open" itis maintenance free and battery fluid
should not be checked. It is recom-
mended that you visit a NISSAN dealer
or a qualified specialist workshop to
confirm the battery’s performance.
∙ Keep the battery surface clean and dry. Clean the battery with a solution of bak-
ing soda and water.
∙ Make certain the terminal connections are clean and securely tightened.
∙ Push the ignition switch to the OFF po- sition and wait 2 minutes before dis-
connecting the battery.
∙ If the vehicle is not to be used for 30 days or longer, disconnect the nega-
tive (-) battery terminal cable to prevent
discharge.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start conditions
such as: 1. Installation or extended use of elec-
tronic accessories that consume bat- tery power when the engine is not
running (Phone chargers, GPS, DVD
players, etc.).
2. Vehicle is not driven regularly and/or
only driven short distances.
In these cases, the battery may need to
be charged to maintain battery health.
WARNING
∙ Do not expose the battery to flames, an electrical spark or a cigarette. Hy-
drogen gas generated by the battery
is explosive. Explosive gases can
cause blindness or injury. Do not allow
battery fluid to contact your skin,
eyes, fabrics or painted surfaces. Sul-
furic acid can cause blindness or in-
jury. Af ter touching a battery or bat-
tery cap, do not touch or rub your
eyes. Thoroughly wash your hands. If
the acid contacts your eyes, skin or
clothing, immediately flush with wa-
ter for at least 15 minutes and seek
medical attention. ∙ Do not operate the vehicle if the fluid
in the battery is low. Low battery fluid
can cause a higher load on the battery
which can generate heat, reduce bat-
tery life, and in some cases lead to an
explosion.
∙ When working on or near a battery, always wear suitable eye protection
and remove all jewelry.
∙ Battery posts, terminals and related accessories contain lead and lead
compounds. Wash hands af ter
handling.
∙ This vehicle uses a special battery. If the 12-volt battery needs to be re-
placed, use a 12-volt battery of the
same design.
∙ Keep battery out of the reach of children.
∙ Do not tip the battery. Keep the vent caps tight and the battery level.
BATTERY
Do-it-yourself8-15

1. Remove the vent caps with a screw-driver as shown. Use a cloth to protect
the battery case.
2. Check the fluid level in each cell. If it isnecessary to add fluid, add only dis-
tilled water to bring the level up to the
bottom of the filler opening. Do not
overfill. Reinstall the vent caps. Vehicles operated in high temperatures or
under severe conditions require frequent
checks of the battery fluid level.
JUMP STARTING
If jump starting is necessary, refer to “Jump
starting” in the “In case of emergency” sec-
tion of this manual. If the engine does not
start by jump starting, the battery may
have to be replaced. It is recommended
that you visit a NISSAN dealer for this ser-
vice.
WDI0224
WDI0529
8-16Do-it-yourself

1. Visually inspect the belt for signs of un-usual wear, cuts, fraying or looseness. If
the belt is in poor condition or is loose,
have it replaced or adjusted. It is recom-
mended that you visit a NISSAN dealer
for this service.
2. Have the belt checked regularly for condition and tension in accordance
with the maintenance schedule. For
additional information, refer to the
"Maintenance and schedules" section
of this manual.
For additional information on the Cum-
mins 5.0L engine drive belt, refer to the “Ti-
tan Diesel Owner’s Manual”.
REPLACING SPARK PLUGS
Iridium-tipped spark plugs
It is not necessary to replace iridium-
tipped spark plugs as frequently as con-
ventional type spark plugs because they
last much longer. Follow the maintenance
log shown in the “Maintenance and sched-
ules” section of this manual. Do not service
iridium-tipped spark plugs by cleaning or
regapping.
∙ Always replace spark plugs with rec-
ommended 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, it is recom-
mended that you visit a NISSAN dealer for
this service.
LDI2972
SPARK PLUGS (gasoline engine
only)
8-18Do-it-yourself

Two types of fuses are used. TypeAand
Bare used in the fuse boxes in the engine
compartment. Type
Bis used in the pas-
senger compartment fuse box.
Type
Bfuses are provided as spare fuses.
They are stored in the passenger compart-
ment fuse box.
Type
Afuses can be installed in the engine
compartment and passenger compart-
ment fuse boxes. If a type
Afuse is used to replace a typeB
fuse, the typeAfuse 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 used to replace
type
Afuses.
ENGINE 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 come
on, check for an open fuse. 1. Be sure the ignition switch and the headlight switch are OFF.
LDI0455LDI0457
VK56VD engine
LDI2962
FUSES
8-22Do-it-yourself

Your NISSAN has been designed to have
minimum maintenance requirements with
long service intervals to save you both time
and money; however, some day-to-day
and regular maintenance is essential to
maintain your NISSAN’s good mechanical
condition as well as its emissions and en-
gine performance.
It is the owner’s responsibility to make sure
that the scheduled maintenance, as well as
general maintenance, is performed.
As the vehicle owner, you are the only one
who can ensure that your vehicle receives
proper maintenance. You are a vital link in
the maintenance chain.
GENERAL MAINTENANCE
General maintenance includes those items
which should be checked during normal
day-to-day operation. They are essential
for proper vehicle operation. It is your re-
sponsibility to perform these maintenance
procedures regularly as prescribed.
Performing general maintenance checks
requires minimal mechanical skill and only
a few general automotive tools.
These checks or inspections can be done
by you, a qualified technician or, if you pre-
fer, a NISSAN dealer.
SCHEDULED MAINTENANCE
The maintenance items listed in this sec-
tion are required to be serviced at regular
intervals. However under severe driving
conditions, additional or more frequent
maintenance will be required.
WHERE TO GO FOR SERVICE
If maintenance service is required or your
vehicle appears to malfunction, have the
systems checked and corrected. It is rec-
ommended that you visit a NISSAN dealer
for this service.
NISSAN technicians are well-trained spe-
cialists who are kept up-to-date with the
latest service information through techni-
cal bulletins, service tips and in-dealership
training programs. They are completely
qualified to work on NISSAN vehiclesbe-
fore they work on your vehicle rather than
af ter they have worked on it.
You can be confident that a NISSAN deal-
er’s service department performs excellent
service to meet the maintenance require-
ments on your vehicle — in a reliable and
economical way. During the normal day-to-day operation of
the vehicle, general maintenance should
be performed regularly as prescribed in
this section. If you detect any unusual
sounds, vibrations or smells, be sure to
check for the cause or have it checked
promptly. In addition, it is recommended
that you visit a NISSAN dealer if you think
that repairs are required.
When performing any checks or mainte-
nance work, closely observe the “Mainte-
nance precautions” in the “Do-it-yourself ”
section of this manual.
EXPLANATION OF GENERAL
MAINTENANCE ITEMS
Additional information on the following
items with“*”isf
ound in the “Do-it-
yourself ” section of this manual.
Outside the vehicle
The maintenance items listed here should
be performed from time to time, unless
otherwise specified.
Doors and engine hood: Check that the
doors and engine hood operate properly.
Also ensure that all latches lock securely.
Lubricate hinges, latches, latch pins, rollers
and links if necessary. Make sure that the
MAINTENANCE REQUIREMENTS GENERAL MAINTENANCE
9-2Maintenance and schedules

Check that the head restraints/headrests
move up and down smoothly and the locks
(if so equipped) hold securely in all latched
positions.
Seat belts:Check that all parts of the seat
belt system (for example, buckles, anchors,
adjusters and retractors) operate properly
and smoothly, and are installed securely.
Check the belt webbing for cuts, fraying,
wear or damage.
Steering wheel: Check for changes in the
steering system, such as excessive free-
play, hard steering or strange noises.
Warning lights and chimes: Make sure all
warning lights and chimes are operating
properly.
Windshield wiper and washer*: Check
that the wipers and washer operate prop-
erly and that the wipers do not streak.
Windshield defroster: Check 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). Battery* (for serviceable batteries):
Check the fluid level in each cell. The fluid
should be at the bottom of the filler open-
ing. Vehicles operated in high tempera-
tures or under severe conditions require
frequent checks of the battery fluid level.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start conditions
such as:
1. Installation or extended use of elec-
tronic accessories that consume bat-
tery power when the engine is not
running (Phone chargers, GPS, DVD
players, etc.).
2. Vehicle is not driven regularly and/or
only driven short distances.
In these cases, the battery may need to
be charged to maintain battery health.
Brake fluid level*: Make sure that the brake
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 af ter
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 system: Visually inspect the ex-
haust pipes, muffler and hangers for leaks,
cracks, deterioration and damage. Tighten
connections or replace parts as necessary.
For additional information, refer to “Exhaust
gas (carbon monoxide)” in the “Starting and
driving” section of this manual.
Fluid leaks: Check under the vehicle for
fuel, oil, water or other fluid leaks af ter the
vehicle has been parked for a while. Water
dripping from the air conditioner af ter use
is normal. If you should notice any leaks or if
fuel fumes are evident, check for the cause
and have it corrected immediately.
Power steering fluid level* and lines:
Check the level when the fluid is cold, with
the engine off. Check the lines for proper
attachment, leaks, cracks, etc.
9-4Maintenance and schedules