NISSAN MURANO HYBRID 2016 3.G First Responders Guide

2-2 High-voltage-Related and 12-Volt-Related Component Locations and
Descriptions
=
DANGER
NOTE:
Components with white number in black background are high-voltage components. 5 74 6 2
31
AAYIA0427ZZ
FRG–11

No. Component
LocationDescription
DC/DC
Converter Inside the centerconsole area
(mounted right of
high-voltage battery) The DC/DC converter reduces the voltage of
the high-voltage battery to provide power to
the 12-volt battery in order to operate the
vehicle’s electric components (headlights,
audio system, etc.) .
Service Plug Center console
(inside storage bin
under access door) This is used to disable the high-voltage system.
High-voltage
Battery Inside the center
console area
(between the
front driver’s and
passenger’s seats) The high-voltage battery stores and outputs
DC power (Maximum voltage 144V) needed to
propel the vehicle.
Traction Motor Engine compart-
ment (built-into the
transmission) Converts three-phase alternating current (AC)
power to drive power (torque) which propels
the vehicle.
Traction Motor
Inverter
Engine compartment
(front driver side)Converts the DC power stored in the high-
voltage 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.
12-volt Battery
Front of the vehicle
on the left side of the
engine compartment.A lead-acid battery that supplies power to the
low voltage devices.
High-voltage
Harness Center console area
(on high-voltage
battery) , under floor,
engine compartment Orange-colored power cables carry high DC
voltage between each of the high-voltage
components.
2-3 High-voltage Battery Pack Specifications High-voltage Battery Specifications
High-voltage

battery voltage 144V
Number of high-voltage battery modules in the pack 3 modules (40 cells)
High-voltage battery module voltage 43.2V- 50.4V (depending on individual module)
High-voltage battery dimensions 27.91 L x 9.41 W x 16.65 H in.
(709.0 L x 239.0 W x 423.0 H mm)
High-voltage battery weight 70.60 lbs (32.0 kg)
FRG–12

2-4 High-voltage Safety Measures
Circuit insulation
The high-voltage positive (+) and negative (-) circuits are insulated
from the metal chassis.
Reducing the risk of electrocution The 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
emergency responders from high-voltage electrical shock.
Identification The high-voltage components are labeled “WARNING” similar to label
shown below. All high-voltage harnesses are coated in orange.
2-4.1 Warning Labels
The following warning label is applied to the high-voltage inverter located in the engine compartment.
The following warning label is applied to the service plug access cover located inside the passenger
compartment center console. AAYIA0454ZZ
AAYIA0455ZZ
FRG–13

The following warning label is applied to the high-voltage battery located inside the passenger compartment
center
console.
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 arecontrolled 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
approximately ten (10) minutes for the high-voltage capacitor to fully discharge. AAYIA0456ZZ
FRG–14

• The high-voltage system and high-voltage capacitor may remain powered for up to
approximately 10 minutes after the vehicle is shut off. Appropriate Personal Protective
Equipment (PPE) must always be worn when touching or working on high-voltage
components to avoid risk of electrical shock and severe personal injury or death.
• The high-voltage battery retains high-voltage at all times. Appropriate PPE must always be worn when touching or working on high-voltage components to avoid risk of electrical
shock and severe personal injury or death.
• 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 front, side or certain rear collisions that are sufficient enough to activate the supplemental
restraint system (SRS) . Passenger Compartment
J

unction Box High-voltage Battery
System main relay 1
Service Plug (With Fuse)
System main relay 2
Transmission
Traction Motor Traction
Motor Inverter
(With built in high- voltage capacitor) DC/DC
Converter
HPCM
(Hybrid Powertrain Control Module)
Engine Compartment AAYIA0136GB
FRG–15

2-6 High-voltage Circuit Shut-Off System
This
vehicle is equipped with a system to shut off the current from the high-voltage battery by the following
methods: Service plug
Positioned on top of the high-voltage battery, this plug shuts off the output of
high-voltage
when manually removed.
System main relays
(located in the high-
voltage battery) Controlled by the ignition switch, these relays are powered by the 12-volt
system and shut off high-voltage from the high-voltage battery.
Emergency shut-off
system In the case of a collision (front and side collisions in which the air bags are
deployed, certain rear collisions) or certain system malfunctions this system
is designed to shut off the high-voltage from the high-voltage battery.
2-7 Preventing Electrical Shock 1. If it is necessary to touch any of the high-voltage harnesses or components, always wearappropriate Personal Protective Equipment (PPE) [refer to 3-1 Preparation Items (FRG–18)].
Shut

off the high-voltage system by referring to 3-3.1 High-voltage System Shut-Down
Procedure

(FRG–22) .
2.

To avoid the risk of electrocution, NEVER touch the inside of the high-voltage battery with bare
hands after shutting off the high-voltage system. The high-voltage battery maintains charge even
though the high-voltage system is shut down. PPE must always be worn when touching or
working on high-voltage components.
3. Cover damaged high-voltage components with insulated tape.
2-8 Emergency Medical Equipment
The high-voltage system should not interfere with emergency medical equipment which must be used in or
near the vehicle at an accident scene.
FRG–16

3. Emergency Response Steps
DANGER
• Failure to properly shut down the high-voltage electrical system before the
Emergency Response Procedures are performed will result in serious injury or death
from electrical shock. To prevent serious injury or death, NEVER touch high-voltage
harnesses or components without always wearing appropriate Personal Protective
Equipment (PPE) . PPE must always be worn when touching or working on high-
voltage components.
• If it is necessary to touch any of the high-voltage harnesses or components you
must
always wear appropriate PPE to avoid electrical shock. PPE must always be worn
when touching or working on high-voltage components. Shut down the high-voltage
system by following the steps outlined in 3-3.1 High-voltage System Shut-Down
Procedure

(FRG–22) . Wait approximately ten (10) minutes for complete discharge of
the

high-voltage capacitor after the high-voltage system has been shut down. • NEVER assume the Murano HYBRID is shut OFF simply because it is quiet.
•

If the READY indicator is ON the high-voltage system is active.
•

If possible, be sure to check the READY indicator on the instrument cluster and
verify

that the READY indicator is OFF and the high-voltage system is stopped.
FRG–17

3-1 Preparation Items
Preparation Items
SpecificationPurpose
PPE
(personal protective equipment): Up to 1,000V For protection from high-
voltage electrical shock.
Insulated gloves Insulated shoes
–
Safety

shield –
T
o protect eyes when around
high-voltage components and
wiring.
Safety Glasses Leather gloves Must be able to fasten tight
around

the wrist (worn over
insulated gloves) . To protect insulated gloves.
Wrenches Size:10mm
T
o remove the 12-volt battery
terminal bolt.
Solvent resistant protection gloves
Solvent resistant protection shoes –To utilize in the event of a
high-voltage battery
electrolytic solution leak.
Absorbent pad The same pad used for
internal combustion engine
fluids can be used. To absorb any high-voltage
battery electrolytic solution
leakage.
Standard fire fighting equipment Standard fire fighting
equipment.
Depending on type of fire
(vehicle or battery) use
standard fire fighting
equipment (water or
extinguisher) . To extinguish a fire.
Insulated tape InsulatingTo cover any damaged
harnesses to protect from and
prevent electrical shock.
Tape should cover all bare or
damaged wire.
FRG–18

3-1.1 Personal Protective Equipment (PPE) Protective Wear Control
Perform
an inspection of the Personal Protective Equipment (PPE) items before beginning work. Do not use
any damaged PPE items.
3-1.2 Daily Inspection
This inspection is performed before and after use. The responder who will be using the items should
perform the inspection and check for deterioration and damage. • Insulated rubber gloves should be inspected for scratches, holes and tears. (Visual check and airleakage test)
• Insulated safety boots should be inspected for holes, damage, nails, metal pieces, wear or other problems on the soles. (Visual check)
• Insulated rubber sheet should be inspected for tears. (Visual check)
3-1.3 Insulated Tools
When performing work at locations where high-voltage is applied (such as terminals) , use insulated tools
meeting 1,000V/300A specifications.
FRG–19

3-2 Vehicle Immobilization and StabilizationIf possible, immobilize the vehicle by turning the 12-volt system OFF and stabilize it with a wheel chock(s) .
Stabilize the vehicle with cribbing, by removing air from the tires, or utilize the Lift Airbag Equipment for rescue.
To avoid electrical shock, do not put the Lift Airbag Equipment for rescue and wheel
chock(s)
under the high-voltage components and harnesses. =
DANGER
AAYIA0425ZZ
FRG–20