Nissan Leaf. Manual — part 720
HA-2
NOISE . . . . . . . . . . . . . . . .
Symptom Table . . . . . . . . . . . . . ..
REMOVAL AND INSTALLATION . . . ...
ELECTRIC COMPRESSOR . . . . . . . ..
Exploded View . . . . . . . . . . . . . ....
Removal and Installation . . . . . . . . . ....
Inspection . . . . . . . . . . . . . . . ...
COOLER PIPE AND HOSE . . . . . . . ...
Exploded View . . . . . . . . . . . . . ....
HIGH-PRESSURE FLEXIBLE HOSE . . . . . ...
HIGH-PRESSURE FLEXIBLE HOSE : Removal
and Installation . . . . . . . . . . . . . ...
LOW-PRESSURE FLEXIBLE HOSE . . . . . ....
LOW-PRESSURE FLEXIBLE HOSE : Removal
and Installation . . . . . . . . . . . . . ...
HIGH-PRESSURE PIPE . . . . . . . . . . ....
HIGH-PRESSURE PIPE : Removal and Installa-
tion . . . . . . . . . . . . . . . . . . ..
2-WAY VALVE AND 3-WAY VALVE ASSEMBLY ...
2-WAY VALVE AND 3-WAY VALVE ASSEMBLY
: Removal and Installation . . . . . . . . . ..
ACCUMULATOR ASSEMBLY . . . . . . . . .
ACCUMULATOR ASSEMBLY : Removal and In-
stallation . . . . . . . . . . . . . . . . .
CONDENSER . . . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . ....
Removal and Installation . . . . . . . . . ....
HEATING AND COOLING UNIT ASSEMBLY ...
Exploded View . . . . . . . . . . . . . ....
HEATING AND COOLING UNIT ASSEMBLY . . ..
HEATING AND COOLING UNIT ASSEMBLY :
Removal and Installation . . . . . . . . . ....
EVAPORATOR . . . . . . . . . . . . . . .
EVAPORATOR : Removal and Installation . . ....
INNER CONDENSER . . . . . . . . . . . ....
INNER CONDENSER : Removal and Installation ...
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . ...
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . . ..
Compressor . . . . . . . . . . . . . . ....
Lubricant . . . . . . . . . . . . . . . . .
Refrigerant . . . . . . . . . . . . . . . ..
WITHOUT HEAT PUMP SYSTEM
PRECAUTION . . . . . . . . . . . .
PRECAUTIONS . . . . . . . . . . . . .
Precaution for Technicians Using Medical Electric ...
Point to Be Checked Before Starting Maintenance
Work . . . . . . . . . . . . . . . . . .
Precaution for Procedure without Cowl Top Cover ...
High Voltage Precautions . . . . . . . . . ...
Precaution for Removing 12V Battery . . . . . .
Precautions for Service Work of Cooler System . .
Service Equipment . . . . . . . . . . . . ..
PREPARATION . . . . . . . . . . ..
PREPARATION . . . . . . . . . . . . .
Commercial Service Tools . . . . . . . . . ..
Oil and Grease . . . . . . . . . . . . . .
SYSTEM DESCRIPTION . . . . . . ...
COMPONENT PARTS . . . . . . . . . ...
REFRIGERATION SYSTEM . . . . . . . . . .
REFRIGERATION SYSTEM : Component Parts
Location . . . . . . . . . . . . . . . . ..
HEATING AND COOLING UNIT ASSEMBLY . . ..
HEATING AND COOLING UNIT ASSEMBLY :
Heating and Cooling Unit Assembly . . . . . ...
HEATING AND COOLING UNIT ASSEMBLY :
Evaporator . . . . . . . . . . . . . . . ..
HEATING AND COOLING UNIT ASSEMBLY :
Expansion Valve . . . . . . . . . . . . . .
CONDENSER . . . . . . . . . . . . . . .
CONDENSER : Condenser . . . . . . . . .
CONDENSER : Liquid Tank . . . . . . . . ...
Electric Compressor . . . . . . . . . . . .
Refrigerant and Compressor Oil . . . . . . . .
High Voltage Warning Label . . . . . . . . ...
SYSTEM . . . . . . . . . . . . . . .
REFRIGERATION SYSTEM . . . . . . . . . .
REFRIGERATION SYSTEM : System Diagram . .
REFRIGERATION SYSTEM : System Description
...
BASIC INSPECTION . . . . . . . . ..
DIAGNOSIS AND REPAIR WORK FLOW . .
Workflow . . . . . . . . . . . . . . . . .
REFRIGERANT . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . ..
Check Refrigerant Leakage . . . . . . . . .
Recycle Refrigerant . . . . . . . . . . . .
Charge Refrigerant . . . . . . . . . . . . .
LUBRICANT . . . . . . . . . . . . . ..
Description . . . . . . . . . . . . . . . ..
HA-3
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Perform Lubricant Return Operation . . . . . ...
Lubricant Adjusting Procedure for Components
Replacement Except Compressor . . . . . . ..
Lubricant Adjusting Procedure for Compressor
Replacement . . . . . . . . . . . . . . ...
PERFORMANCE TEST . . . . . . . . . ..
Inspection . . . . . . . . . . . . . . . .
SYMPTOM DIAGNOSIS . . . . . . . ..
REFRIGERATION SYSTEM SYMPTOMS . . .
Trouble Diagnosis For Unusual Pressure . . . ...
Symptom Table . . . . . . . . . . . . . ...
NOISE . . . . . . . . . . . . . . . . .
Symptom Table . . . . . . . . . . . . . ...
REMOVAL AND INSTALLATION . . . ...
ELECTRIC COMPRESSOR . . . . . . . ...
Exploded View . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . ..
COOLER PIPE AND HOSE . . . . . . . .
Exploded View . . . . . . . . . . . . . ..
HIGH-PRESSURE FLEXIBLE HOSE . . . . . ..
HIGH-PRESSURE FLEXIBLE HOSE : Removal
and Installation . . . . . . . . . . . . . ..
LOW-PRESSURE FLEXIBLE HOSE . . . . . ..
LOW-PRESSURE FLEXIBLE HOSE : Removal
and Installation . . . . . . . . . . . . . ..
HIGH-PRESSURE PIPE . . . . . . . . . . ..
HIGH-PRESSURE PIPE : Removal and Installa-
tion . . . . . . . . . . . . . . . . . .
LOW-PRESSURE PIPE . . . . . . . . . . ...
LOW-PRESSURE PIPE : Removal and Installa-
tion . . . . . . . . . . . . . . . . . . .
CONDENSER . . . . . . . . . . . . ..
Exploded View . . . . . . . . . . . . . ...
CONDENSER . . . . . . . . . . . . . . ...
CONDENSER : Removal and Installation . . . .
LIQUID TANK . . . . . . . . . . . . . . ..
LIQUID TANK : Removal and Installation . . . ..
REFRIGERANT PRESSURE SENSOR . . . . ...
REFRIGERANT PRESSURE SENSOR : Remov-
al and Installation . . . . . . . . . . . . ...
HEATING AND COOLING UNIT ASSEMBLY .
Exploded View . . . . . . . . . . . . . ...
HEATING AND COOLING UNIT ASSEMBLY . .
HEATING AND COOLING UNIT ASSEMBLY :
Removal and Installation . . . . . . . . . ...
EVAPORATOR . . . . . . . . . . . . . .
EVAPORATOR : Removal and Installation . . ...
EXPANSION VALVE . . . . . . . . . . . ...
EXPANSION VALVE : Removal and Installation ...
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . ..
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . ...
Compressor . . . . . . . . . . . . . . ...
Lubricant . . . . . . . . . . . . . . . .
HA-4
< PRECAUTION >
[WITH HEAT PUMP SYSTEM]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Technicians Using Medical Electric
INFOID:0000000010122078
OPERATION PROHIBITION
WARNING:
• Parts with strong magnet is used in this vehicle.
• Technicians using a medical electric device such as pacemaker must never perform operation on the
vehicle, as magnetic field can affect the device function by approaching to such parts.
NORMAL CHARGE PRECAUTION
WARNING:
• If a technician uses a medical electric device such as an implantable cardiac pacemaker or an
implantable cardioverter defibrillator, the possible effects on the devices must be checked with the
device manufacturer before starting the charge operation.
• As radiated electromagnetic wave generated by PDM (Power Delivery Module) at normal charge
operation may affect medical electric devices, a technician using a medical electric device such as
implantable cardiac pacemaker or an implantable cardioverter defibrillator must not approach motor
room [PDM (Power Delivery Module)] at the hood-opened condition during normal charge operation.
PRECAUTION AT TELEMATICS SYSTEM OPERATION
WARNING:
• If a technician uses implantable cardiac pacemaker or implantable cardioverter defibrillator (ICD),
avoid the device implanted part from approaching within approximately 220 mm (8.66 in) from inte-
rior/exterior antenna.
• The electromagnetic wave of TCU might affect the function of the implantable cardiac pacemaker or
the implantable cardioverter defibrillator (ICD), when using the service, etc.
• If a technician uses other medical electric devices than implantable cardiac pacemaker or implant-
able cardioverter defibrillator (ICD), the electromagnetic wave of TCU might affect the function of the
device. The possible effects on the devices must be checked with the device manufacturer before
TCU use.
PRECAUTION AT INTELLIGENT KEY SYSTEM OPERATION
WARNING:
• If a technician uses implantable cardiac pacemaker or implantable cardioverter defibrillator (ICD),
avoid the device implanted part from approaching within approximately 220 mm (8.66 in) from inte-
rior/exterior antenna.
• The electromagnetic wave of Intelligent Key might affect the function of the implantable cardiac
pacemaker or the implantable cardioverter defibrillator (ICD), at door operation, at each request
switch operation, or at engine starting.
• If a technician uses other medical electric devices than implantable cardiac pacemaker or implant-
able cardioverter defibrillator (ICD), the electromagnetic wave of Intelligent Key might affect the
function of the device. The possible effects on the devices must be checked with the device manu-
facturer before Intelligent Key use.
Point to Be Checked Before Starting Maintenance Work
INFOID:0000000010122079
The high voltage system may starts automatically. It is required to check that the timer air conditioner
and timer charge (during EVSE connection) are not set before starting maintenance work.
NOTE:
If the timer air conditioner or timer charge (during EVSE connection) is set, the high voltage system starts
automatically even when the power switch is in OFF state.
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000010122080
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
PRECAUTIONS
HA-5
< PRECAUTION >
[WITH HEAT PUMP SYSTEM]
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system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery and wait at least three minutes before performing any service.
Precaution for Procedure without Cowl Top Cover
INFOID:0000000010122081
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc to prevent damage to
windshield.
High Voltage Precautions
INFOID:0000000010122082
DANGER:
Since hybrid vehicles and electric vehicles contain a high voltage battery, there is the risk of
electric shock, electric leakage, or similar accidents if the high voltage component and vehicle are
handled incorrectly. Be sure to follow the correct work procedures when performing inspection and
maintenance.
WARNING:
• Be sure to remove the service plug in order to disconnect the high voltage circuits before perform-
ing inspection or maintenance of high voltage system harnesses and parts.
• The removed service plug must always be carried in a pocket of the responsible worker or placed in
the tool box during the procedure to prevent the plug from being connected by mistake.
• Be sure to wear insulated protective equipment before beginning work on the high voltage system.
• Never allow workers other than the responsible person to touch the vehicle containing high voltage
parts. To keep others from touching the high voltage parts, these parts must be covered with an insu-
lating sheet except when using them.
CAUTION:
Never bring the vehicle into the READY status with the service plug removed unless otherwise
instructed in the Service Manual. A malfunction may occur if this is not observed.
HIGH VOLTAGE HARNESS AND EQUIPMENT IDENTIFICATION
PIIB3706J
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