Diagnostic NISSAN LEAF 2019 Owner´s Manual

SymptomPossible cause Possible solution
Normal charge stops in
the middle of charging. There is no power coming from the outlet. There may have been an electrical power failure, or the breaker may have failed. Charg-
ing will resume when the power source is reset.
The charge cable has been disconnected. Check that the charge cable has not been disconnected.
Both the normal charge connector and the
quick charge connector were connected at
the same time. If the normal charge connector and the quick charge connector are connected at the
same time, charging will be stopped.
Charging timer end time has been
reached. When the charging timer is set and the charge end time is reached, charging will be
stopped, even if the Li-ion battery is not fully charged.
The temperature of the Li-ion battery is too
hot or too cold to charge. Confirm the Li-ion battery temperature by checking the Li-ion battery temperature
gauge. If the gauge indicates the Li-ion battery is too hot (red zone) or too cold (blue
zone), charging is not possible. Allow the Li-ion battery to cool or warm up before charg-
ing. For additional information, refer to “Li-ion battery temperature gauge” in the “Instru-
ments and controls” section of this manual.
The electric power supply from the normal
charging station was stopped. Confirm operation procedure of charging station.
Quick charge cannot be performed. Incorrect charge connector connection, not
fully inserted or may not be locked.
Check that the charge connector is connected correctly and that it is locked.
The self-diagnostic function of the quick
charge device returns a negative result. There is a possibility that the vehicle has a malfunction. Stop charging. It is recommended
that you visit a NISSAN certified LEAF dealer.
The power switch of the quick charger is off. Check the power switch of the quick charger.
Quick charge stops in the middle of charging. Charging is stopped by the quick charge
timer.
Charging will stop depending on the timer function setting of the quick charge device.
If you need to charge the Li-ion battery more, start the charging procedure again.
The power supply for the quick charger is off. Check whether the power supply for the quick charger is off.
ChargingCH-59

Self-test feature
The Anti-lock Braking System (ABS) in-
cludes electronic sensors, electric pumps,
hydraulic solenoids and a computer. The
computer has a built-in diagnostic feature
that tests the system each time you push
the power switch in the READY to drive po-
sition and move the vehicle at a low speed
in forward or reverse. When the self-test
occurs, you may hear a “clunk” noise
and/or feel a pulsation in the brake pedal.
This is normal and does not indicate a mal-
function. If the computer senses a mal-
function, it switches the ABS off and illumi-
nates the ABS warning light on the
instrument panel. The brake system then
operates normally, but without anti-lock
assistance.
If the ABS warning light illuminates during
the self-test or while driving, have the ve-
hicle checked. It is recommended that you
visit a NISSAN certified LEAF dealer for this
service.
Normal operation
The Anti-lock Braking System (ABS) oper-
ates at speeds above 3 to 6 mph (5 to
10 km/h). The speed varies according to
road conditions.
When the ABS senses that one or more
wheels are close to locking up, the actuator
rapidly applies and releases hydraulic pres-
sure. This action is similar to pumping the
brakes very quickly. You may feel a pulsa-
tion in the brake pedal and hear a noise
from under the hood or feel a vibration
from the actuator when it is operating. This
is normal and indicates that the ABS is op-
erating properly. However, the pulsation
may indicate that road conditions are haz-
ardous and extra care is required while
driving.
BRAKE ASSIST
When the force applied to the brake pedal
exceeds a certain level, the Brake Assist is
activated generating greater braking force
than a conventional brake booster even
with light pedal force.
WARNING
The Brake Assist is only an aid to assist
braking operation and is not a collision
warning or avoidance device. It is the
drivers responsibility to stay alert,
drive safely and be in control of the
vehicle at all times.
Starting and driving5-149

The VDC system uses various sensors to
monitor driver inputs and vehicle motion.
Under certain driving conditions, the VDC
system helps to perform the following
functions.
• Controls brake pressure to reduce wheelslip on one slipping drive wheel so power
is transferred to a drive wheel on the same
axle that is not slipping.
• Controls brake pressure and traction mo- tor output to reduce drive wheel slip
based on vehicle speed (traction control
function).
• Controls brake pressure at individual wheels and traction motor output to help
the driver maintain control of the vehicle
in the following conditions:
• Understeer (vehicle tends to not follow the steered path despite increased steering
input).
• Oversteer (vehicle tends to spin due to certain road or driving conditions).
The VDC system can help the driver main-
tain control of the vehicle, but it cannot
prevent loss of vehicle control in all driving
situations. When the VDC system operates, the
indicator light in the instrument panel
flashes. When the indicator light flashes,
note the following items:
• The road may be slippery or the system
may determine some action is required to
help keep the vehicle on the steered path.
• You may feel a pulsation in the brake pedal and hear a noise or vibration from under
the hood. This is normal and indicates
that the VDC system is working properly.
• Adjust your speed and driving according to the road conditions.
For additional information, refer to “Slip in-
dicator light” and “Vehicle Dynamic Control
(VDC) OFF indicator light” in the “Instru-
ments and controls” section of this manual.
If a malfunction occurs in the system, the
indicator light illuminates in the ve-
hicle information display. The VDC system
automatically turns off when this indicator
light is lit. The vehicle information display is used to
turn off the VDC system. The VDC OFF indi-
cator light
illuminates to indicate that
the VDC system is off. When the vehicle
information display is used to turn off the
system, the VDC system still operates to
prevent one drive wheel from slipping by
transferring power to a non-slipping wheel.
The
indicator light flashes if this oc-
curs. All other VDC functions are off and the
indicator light will not flash. The VDC
system is automatically reset to on when
the power switch is placed in the OFF posi-
tion then back to the ON position. For addi-
tional information, refer to “Vehicle infor-
mation display” in the “Instruments and
controls” section of this manual.
The computer has a built-in diagnostic fea-
ture that tests the system each time you
start the EV and move the vehicle forward
or in reverse at a slow speed. When the
self-test occurs, you may hear a “clunk”
noise and/or feel a pulsation in the brake
pedal. This is normal and is not an indica-
tion of a malfunction.
VEHICLE DYNAMIC CONTROL (VDC)
SYSTEM
5-150Starting and driving