This manual describes dismantling operations and important safety related warnings and cautions for this
vehicle.
This vehicle is equipped with a high voltage Lithium-ion (Li-on) battery pack. Failure to follow
recommended practices during dismantling will cause death or serious personal injury.
Please read this manual in advance in order to understand the features of this vehicle and to help you deal
with dismantling operations involving this vehicle. Follow the procedures in order to help assure a
successful dismantling operation.
INFINITI EMERGENCY CONTACT INFORMATION
• 1-800-662-6200 (US) or 1-800-361-4792 (Canada)
• Hours of operation are 8am-5pm (Monday-Friday) Eastern, Central and Pacific time zones
IMPORTANT INFORMATION ABOUT THIS MANUAL
You may see various symbols in this manual. They have the following meanings:
This symbol is used to inform you of an operation which will result in death or serious personal injury if
instructions are not followed.
Example: Touching high voltage components without using the appropriate protective equipment will result
in electrocution.
This symbol is used to inform you of an operation which may cause death or serious personal injury if
instructions are not followed.
This symbol is used to inform you of an operation which may cause personal injury or component damage if
instructions are not followed.
Please note that there may be differences between this manual and the vehicle specification due to
specification changes. In such a case, follow this manual.
This hybrid electric vehicle (HEV) uses two types of batteries. One is a 12V battery that is the same as the
battery in vehicles powered by internal combustion engines. The 12V battery is located behind the rear seat
back with battery cable access through the trunk area. The other is the Lithium-ion (Li-ion) battery (high
voltage) for the traction motor which propels the vehicle. The Li-ion battery is located behind the rear seat
back with service plug access through the trunk area.
The high voltage Li-ion battery is recharged with an on-board DC/DC converter and generator powered by
the engine. Additionally, the vehicle system can recharge the Li-ion battery by converting driving force
into electricity while the vehicle is decelerating or being driven downhill. This is called regenerative charging.
3. Master Warning Lamp (Orange or Red)4. Hybrid System Warning Lamp (Orange)
Lamp NameIconDescription
READY Indicator
(Green)
Master Warning Lamp
(Orange or Red)
This lamp is on when the high voltage system is powered
up and the vehicle is ready to drive.
This lamp is on when another warning lamp or message is
displayed in the instrument cluster.
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Lamp NameIconDescription
Hybrid System Warning
Lamp *1
(Orange)
This lamp is on or blinking when:
• Malfunction has occurred in the high voltage system
and/or
• High voltage leak to vehicle chassis and/or
• Emergency shut-off system has been activated. The
shut-off system activates in the following conditions:
– Front and side collisions in which the air bags are
deployed.
– Certain rear collisions.
– Certain high voltage system malfunctions.
*1: When this lamp is ON, the READY Indicator will turn OFF.
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2. Basic High Voltage Information
2-1 Battery Information
The M35h HYBRID utilizes two batteries in order to supply both high and low voltage.
2-1.1 12V Battery
• The M35h HYBRID contains a conventional lead-acid 12V
battery.
• The 12V battery is located in the trunk, left of Li-ion battery,
concealed by trim cover.
• The 12V battery is charged by the Li-ion battery through
the DC/DC converter.
2-1.2 Li-ion Battery
• The M35h HYBRID contains a Li-ion high voltage battery.
• The high voltage battery is mounted in the trunk area
behind the rear seat, enclosed in a metal case and
concealed by trim cover.
• The high voltage battery stores approximately 346 volts DC
(400V max.).
• The high voltage battery exhausts gases directly outside
the vehicle through a vent hose.
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• An air vent is located on the rear parcel shelf for battery
cooling.
The high voltage battery supplies power to the following:
• High voltage harnesses
• DC/DC converter
• Traction motor inverter
• Traction motor
• Electric air conditioner compressor
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2-2 High Voltage-Related and 12V-Related Component Locations and
Descriptions
NOTE:
Components with white number in black background are high voltage components.
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No.ComponentLocationDescription
aLithium-ion (Li-ion)
Battery
bDC/DC ConverterTrunk area (mounted
cService PlugTrunk area (below
d12V BatteryTrunk area (below
eHigh Voltage Har-
nesses
fElectric Air Condi-
tioner Compressor
gTraction Motor
Inverter
hTraction MotorBuilt-into the trans-
Trunk area (behind
rear seat back)
to top of Li-ion battery)
parcel shelf; behind
access door in trim
panel)
parcel shelf; behind
trim panel left of
Li-ion battery)
Trunk area (on Li-ion
battery), under floor
pan, engine compartment
Engine compartment (front driver
side)
Engine compartment (rear passenger side)
mission
The Li-ion battery stores and outputs DC
power (Maximum voltage 400V) needed to
propel the vehicle.
The DC/DC converter reduces the voltage of
the Li-ion battery to provide power to the 12V
battery in order to operate the vehicle’s electric
components (headlights, audio system, etc.).
This is used to disable the high voltage system.
A lead-acid battery that supplies power to the
low voltage devices.
Orange-colored power cables carry high DC
voltage between each of the high voltage components.
Air conditioner compressor
Converts the DC power stored in the Li-ion
battery to three-phase AC power and controls
motor torque (revolution) by regulating the
motor current. The inverter has a built in high
voltage capacitor.
Converts three-phase alternating current (AC)
power to drive power (torque) which propels
the vehicle.
2-3 Li-ion Battery Pack Specifications
Li-ion Battery Specifications
Li-ion battery voltage346V (400V max.)
Number of Li-ion battery modules in the pack12
Li-ion battery module voltage28.8V each
Li-ion battery dimensions33.35 x 17.83 x 15.43 in. (847 x 453 x 392 mm)
Li-ion battery weight121.28 lbs (55 kg)
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2-4 High Voltage Safety Measures
Circuit insulationThe high voltage positive (+) and negative (-) circuits are insulated
from the metal chassis.
Reducing the risk of electrocutionThe high voltage components and harnesses have insulated cases or
orange-colored coverings which provide insulation and easy identification.
The high voltage battery case is electrically connected to the vehicle
ground. This connection helps protect the vehicle occupants and
vehicle dismantlers
IdentificationThe high voltage components are labeled “WARNING” similar to label
shown below. All high voltage harnesses are coated in orange.
2-4.1 Warning Label
from high voltage electrical shock.
14
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2-5 High Voltage Safety System
The high voltage safety system is intended to help keep vehicle occupants and emergency responders safe
from high voltage electricity.
• A high voltage fuse provides short circuit protection inside the high voltage battery.
• The high voltage safety system is insulated from the metal chassis.
• Positive and negative high voltage power cables are connected to the high voltage battery and are
controlled by normally open system main relays (SMR1 and SMR2). When the vehicle is shut off,
the relays stop electrical flow from leaving the high voltage battery. However, it can take up to
ten (10) minutes for the high voltage capacitor to fully discharge.
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• The high voltage system and high voltage capacitor may remain powered for up to 10
minutes after the vehicle is shut off.
• The high voltage battery retains high voltage at all times.
• A ground fault monitor continuously monitors for high voltage leakage to the metal chassis while the
vehicle is running. If a malfunction is detected, the HPCM (hybrid powertrain control module) will
illuminate the hybrid system warning lamp
in the instrument cluster.
• The high voltage battery relays (SMR1 and SMR2) will automatically open to stop the electrical flow
in a frontal collision that is sufficient enough to activate the supplemental restraint system (SRS).
15
2-6 High Voltage Circuit Shut-Off System
This vehicle is equipped with a system to shut off the current from the Li-ion battery by the following
methods:
Service plugPositioned in the center area of the Li-ion battery, this plug shuts off the out-
put of high voltage when manually removed.
System main relaysControlled by the ignition switch, these relays are powered by the 12V sys-
tem and shut off high voltage from the Li-ion battery.
Emergency shut-off system
In the case of a collision (air bag deployment, etc.) or certain system malfunctions this system shuts off the high voltage from the Li-ion battery.
2-7 Preventing Electrical Shock
1. If it is necessary to touch any of the high voltage harnesses or components, always wear
appropriate PPE (refer to
3-3.1 High Voltage System Shut-Down Procedure.
2.
To avoid the risk of electrocution, do not touch the inside of the Li-ion battery with bare hands
after shutting off the high voltage system. The Li-ion battery maintains charge even though the
high voltage system is shut down.
3. Cover damaged high voltage components with insulated tape.
3-1 Preparation Items). Shut off the high voltage system by referring to
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