ECU NISSAN LEAF 2015 1.G Repair Manual

When performing any inspection or maintenance
work on your vehicle, always take care to prevent
serious accidental injury to yourself or damage to
the vehicle. The following are general precau-
tions that should be closely observed.
WARNING
• The EV (Electric Vehicle) system uses high voltage up to approximately DC
400 volt. The system can be hot during
and after starting and when the vehicle
is shut off. Be careful of both the high
voltage and the high temperature.
Obey the labels that are attached to
the vehicle.
• Never disassemble, remove or replace high-voltage parts and cables as well
as their connectors. High-voltage
cables are colored orange.
• Disassembling, removing or replacing those parts or cables can cause severe
burns or electric shock that may result
in serious injury or death. The vehicle
high voltage system has no user ser-
viceable parts. Take your vehicle to the
NISSAN certified LEAF dealer for any
necessary maintenance. • Park the vehicle on a level surface,
apply the parking brake securely and
chock the wheels to prevent the ve-
hicle from moving. Push the P (Park)
position switch on the shift lever or
place the vehicle into the N (Neutral)
position.
• If you must work with the EV (Electric vehicle) system is turned on, keep
hands, clothing, hair and tools away
from moving fans and any other mov-
ing parts.
• Make sure that the power switch is in the OFF or LOCK position when per-
forming any part replacement or re-
pairs.
• It is advisable to secure or remove any loose clothing and remove any jewelry,
such as rings, watches, etc. before
working on your vehicle.
• Always wear eye protection whenever you work on your vehicle.
• Never get under the vehicle while it is supported only by a jack. If it is neces-
sary to work under the vehicle, support
it with safety stands.
• Keep smoking materials, flames and sparks away from the 12-volt battery.
CAUTION
• Do not work under the hood while the motor compartment is hot. Push the
power switch in the OFF position and
wait until it cools down.
• Avoid direct contact with used coolant. Improperly disposed coolant and/or
other vehicle fluids can damage the
environment. Always conform to local
regulations for the disposal of vehicle
fluids.
• Never connect or disconnect the bat- tery or any transistorized component
while the power switch is in the ON
position.
• Your vehicle is equipped with an auto- matic cooling fan. It may come on at
any time without warning, even if the
power switch is not in the ACC, ON or
READY to drive position. To avoid in-
jury, always disconnect the negative
12-volt battery cable before working
near the fan.
• Before performing any electrical main- tenance work on the vehicle such as
the battery, fuses or bulb replacement,
confirm the following:
– The charge connector is removedfrom the vehicle.
MAINTENANCE PRECAUTIONS
Maintenance and do-it yourself8-5

• When adding or replacing coolant, besure to use only a Genuine NISSAN
Long Life Antifreeze/Coolant (blue) or
equivalent. Genuine NISSAN Long Life
Antifreeze/Coolant (blue) is pre-
diluted to provide antifreeze protec-
tion to −34°F (−37°C) . If additional
freeze protection is needed due to the
weather conditions where you operate
your vehicle, add Genuine NISSAN
Long Life Antifreeze/Coolant (blue)
concentrate following the directions
on the container. If and equivalent
coolant other than Genuine NISSAN
Long Life Antifreeze/Coolant (blue) is
used, follow the coolant manufacture’s
instructions to maintain minimum an-
tifreeze protection to −34°F (−37°C) .
The use of other types of coolant solu-
tions other than Genuine NISSAN
Long Life Antifreeze/Coolant (blue) or
equivalent may damage the cooling
system. • The life expectancy of the factory-fill
coolant is 125,000 miles (200,000 km)
or 15 years. Mixing any other type of
coolant other than Genuine NISSAN
Long Life Antifreeze/Coolant (blue) ,
including Genuine NISSAN Long Life
Antifreeze/Coolant (green) , or the use
of non-distilled water will reduce the
life expectancy of the factory-filled
coolant. Refer to the NISSAN Service
and Maintenance Guide for more
details.
CHECKING COOLANT LEVEL
Check the coolant level in the reservoir when
the high voltage parts are cold. If the coolant
level is below the MIN level
B, open the reservoir
cap and add coolant up to the MAX level
A.If
the reservoir is empty, check the coolant level in
the coolant tank when the high voltage parts
are cold. If there is insufficient coolant in the
coolant tank, fill the coolant tank with coolant up
to the reservoir cap opening and also add it to the
reservoir up to the MAX level
A.
Tighten the cap securely after adding coolant.
8-8Maintenance and do-it yourself

To fill the window washer fluid reservoir, lift the
cap and pour the window washer fluid into the
reservoir opening.
Add a washer solvent to the washer for better
cleaning. In the winter season, add a windshield
washer antifreeze. Follow the manufacturer’s in-
structions for the mixture ratio.
Fill the window washer fluid reservoir periodically.
Refill the reservoir more frequently when driving
conditions require an increased amount of win-
dow washer fluid.
Recommended fluid:
Genuine NISSAN Windshield Washer Concen-
trate Cleaner & Antifreeze or equivalent
CAUTION
• Do not substitute anti-freeze coolant for window washer solution. This may
result in damage to the paint.
• Do not fill the window washer reservoir tank with washer fluid concentrates at
full strength. Some methyl alcohol
based washer fluid concentrates may
permanently stain the grille if spilled
while filling the window washer reser-
voir tank. • Pre-mix washer fluid concentrates
with water to the manufacturer’s rec-
ommended levels before pouring the
fluid into the window washer reservoir
tank. Do not use the window washer
reservoir tank to mix the washer fluid
concentrate and water. • Keep the 12-volt battery surface clean and dry.
Clean the 12-volt battery with a solution of
baking soda and water.
• Make certain the terminal connections are clean and securely tightened.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery discharge
and potential no-start conditions such as:
1. Installation or extended use of electronic ac- cessories that consume battery 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 12-volt battery to flames or electrical sparks. Hydrogen
gas generated by the 12-volt battery is
explosive. Do not allow 12-volt battery
fluid to contact your skin, eyes, fabrics
or painted surfaces. After touching a
12-volt battery or 12-volt battery cap,
12-VOLT BATTERY
Maintenance and do-it yourself8-11

4. Align the tips of the upper and lower parts1,
and then push them together
2until it is
securely closed.
5. Operate the buttons to check that it is func- tioning properly.
See a NISSAN certified LEAF dealer if you need
any 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 expressly ap-
proved by the party responsible for compli-
ance could void the user’s authority to op-
erate 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
device.
8-20Maintenance and do-it yourself

3Original size: The size of the tires
originally installed on the vehicle at
the factory.
4Cold tire pressure: Inflate the tires to
this pressure when the tires are
cold. Tires are considered COLD
after the vehicle has been parked for
3 or more hours, or driven less than
1 mile (1.6 km) at moderate speeds.
The recommended cold tire inflation
is set by the manufacturer to provide
the best balance of tire wear, vehicle
handling, driveability, tire noise, etc.,
up to the vehicle’s GVWR.
5Tire size — see “Tire labeling” in this
section.
6Spare tire size or compact spare tire
size (if so equipped)
Checking tire pressure
1. Remove the valve stem cap from thetire.
2. Press the pressure gauge securely onto the valve stem. Do not press too
hard or force the valve stem sideways,
otherwise air will escape. If the hissing
sound of air escaping from the tire is
heard while checking the pressure, re-
position the gauge to eliminate this
leakage. 3. Remove the gauge.
4. Read the tire pressure on the gauge
stem and compare it to the specifica-
tion shown on the Tire and Loading
Information label.
5. Add air to the tire as necessary. If too much air is added, press the core of
the valve stem briefly with the tip of the
gauge stem to release pressure. Re-
check the pressure and add or release
air as necessary.
6. Install the valve stem cap.
7. Check the pressure of all of the tires.
SIZE COLD TIRE
INFLATION
PRESSURE
FRONT
ORIGI-
NAL TIRE P205/55R16
89H 250 kPa,
36 PSI
FRONT
ORIGI-
NAL TIRE P215/50R17
90V 250 kPa,
36 PSI
8-28Maintenance and do-it yourself

Generally, snow tires will have lower speed rat-
ings than factory equipped tires and may not
match the potential maximum vehicle speed.
Never exceed the maximum speed rating of the
tire.
If you install snow tires, they must be the same
size, brand, construction and tread pattern on all
four wheels.
For additional traction on icy roads, studded tires
may be used. However, some U.S. states and
Canadian provinces prohibit their use. Check
local, state and provincial laws before installing
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
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 only SAE Class S chains.Class “S”
chains are used on vehicles with restricted tire to
vehicle clearance. Vehicles that can use Class
“S” chains are designed to meet the SAE stan- dard minimum clearances between the tire and
the closest vehicle suspension or body compo-
nent required to accommodate the use of a win-
ter traction device (tire chains or cables) . The
minimum clearances are determined using the
factory equipped tire size. Other types may dam-
age 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 damage 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
adversely affected.
Tire chains must be installed only on the
front wheels and not on the rear wheels.
Do not use tire chains on dry roads. Driving with
tire chains in such conditions can cause damage
to the various mechanisms of the vehicle due to
some overstress.
CHANGING WHEELS AND TIRES
Tire rotation
NISSAN recommends rotating the tires
every 7,500 miles (12,000 km) .
As soon as possible, tighten the
wheel nuts to the specified torque
using a torque wrench.
Wheel nut tightening torque:83 ft-lb (112 N·m)
8-32Maintenance and do-it yourself

9 Technical and consumer information
Recommended fluids/lubricants and capacities.....9-2
Air conditioning system refrigerant and lubricant
recommendations .................... .9-3
Specifications ........................ .9-4
Charging system .................... .9-4
Motor ........................... .9-5
Wheels and tires .................... .9-5
Dimensions and weights ................ .9-6
When traveling or registering your vehicle in another
country ............................ .9-6
Vehicle identification .................... .9-7
Vehicle Identification Number (VIN) plate .......9-7
Vehicle identification number (chassis number). . . .9-7
Traction motor serial number ..............9-7
F.M.V.S.S./C.M.V.S.S certification label ........9-8
Emission control information label ...........9-8
Tire and Loading Information label ...........9-8
Air conditioner specification label ............9-9
Installing front license plate .................9-9Vehicle loading information
.................9-10
Terms .......................... .9-10
Vehicle load capacity ................. .9-11
Securing the load ................... .9-12
Loading tips ...................... .9-12
Measurement of weights ................9-13
Towing a trailer ....................... .9-14
Flat towing ......................... .9-14
Uniform tire quality grading .................9-14
Treadwear ....................... .9-14
Traction AA, A, B and C ................9-14
Temperature A, B and C ................9-15
Reporting safety defects ................. .9-15
Telematics overview .................... .9-16
Event Data Recorder (EDR) ................9-18
Owner’s Manual/Service Manual order information. . .9-19
Charging information ................... .9-20
Cold tire pressures .................... .9-22

(1400 − 750 (5 x 150) = 650 lbs) or
(640 − 340 (5 x 70) = 300 kg.)
5. Determine the combined weight of luggage and cargo being loaded on
the vehicle. That weight may not safely
exceed the available cargo and lug-
gage 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.
(See Measurement of weights later in
this section
in this section.)
Also check tires for proper inflation pres-
sures. See the Tire and Loading Informa-
tion label.
SECURING THE LOAD
There are tie down hooks located in the cargo
area as shown. The tie down hooks can be used
to secure cargo with ropes or other types of
straps.
Do not apply a total load of more than 4 lb
(2 kg) to a single hook when securing
cargo.
WARNING
• Properly secure all cargo with ropes or straps to help prevent it from sliding or
shifting. Do not place cargo higher
than the seatbacks. In a sudden stop or
collision, unsecured cargo could cause
personal injury.
• The child restraint top tether strap may be damaged by contact with items in
the cargo area. Secure any items in the
cargo area. Your child could be seri-
ously injured or killed in a collision if
the top tether strap is damaged.
• 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 personal
injury.
LOADING TIPS
• The GVW must not exceed the GVWR
or GAWR as specified on the
F.M.V.S.S./C.M.V.S.S. certification label.
9-12Technical and consumer information

• Do not load the front and rear axle to theGAWR. 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 oc-
cur, 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 cause un-
safe vehicle handling and longer
braking 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
Ratings (GAWR) . The total of the axle
loads should not exceed the Gross Ve-
hicle Weight Rating (GVWR) . These rat-
ings are given on the vehicle certification
label. If weight ratings are exceeded,
move or remove items to bring all weights
below the ratings.
Technical and consumer information9-13

You may notify NISSAN by contacting our
Consumer Affairs Department, toll-free, at
1-877-NOGASEV (1-877-664-2738) .
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 a recall campaign.
However, Transport Canada cannot be-
come involved in individual problems be-
tween 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/fccp.aspx?lang=eng
(English speakers) or https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/
PCDB-BDPP/fccp.aspx?lang=fra
(French speakers)
Additional information concerning motor
vehicle safety may be obtained from
Transport Canada’s Road Safety Informa-
tion Centre at 1-800-333-0371 or online
at www.tc.gc.ca/roadsafety (English
speakers) 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.
In addition to Event Data Recorders (EDRs) dis-
cussed elsewhere in this Owner’s Manual, this
vehicle is equipped with electronic modules that
monitor, control and record data concerning vari-
ous vehicle systems, including the motor, batter-
ies, braking and electrical systems. Other elec-
tronic modules record information concerning
driving conditions, including idling, braking, ac-
celeration, trip and other related data, information
about your use of the car and its features such as
air conditioner or headlight usage, diagnostic
trouble codes, vehicle charging, vehicle speed,
direction and/or location.
Some of this data is stored by the vehicle for use
during vehicle servicing. Other data concerning
your vehicle’s operation and performance is wire-
lessly transmitted by cellular connection through
the vehicle onboard telematics system upon ve-
hicle start-up or at other intervals to NISSAN.
This data may be used by NISSAN for various
purposes, including: to provide you with CAR-
WINGS™ services (see LEAF Navigation System
Owner’s Manual for details); troubleshooting;
evaluation of your vehicle’s quality, functionality
and performance; analysis and research by
NISSAN designed to, among other things, opti-
mize performance of future electric vehicles in-
cluding improvements in future battery life; to
TELEMATICS OVERVIEW
9-16Technical and consumer information