INFINITI Q70 HYBRID 2018 First Responder´s

2-2 High Voltage-Related and 12-Volt-Related Component Locations and
Descriptions
NO
TE:
Components with white number in black background are high voltage components. No. Component
LocationDescription
High

Voltage
Battery Trunk area (behind
rear seat back) The high voltage battery stores and outputs
DC power (Maximum voltage 400V) needed to
propel the vehicle.
DC/DC Converter Trunk area (mounted
to top of high volt-
age 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 vehi-
cle’s electric components (headlights, audio
system, etc.) . AAYIA0338ZZ
FRG–11

No. Component
LocationDescription
Service
Plug Trunk area (belowparcel shelf; behind
access door in trim
panel) This is used to disable the high voltage system.
12-volt Battery Trunk area (below
parcel shelf; behind
trim panel left of
high voltage battery) A lead-acid battery that supplies power to the
low voltage devices.
High Voltage
Harnesses Trunk area (on high
voltage battery) ,
under floor pan,
engine compartment Orange-colored power cables carry high DC
voltage between each of the high voltage com-
ponents.
Electric Air Condi-
tioner Compressor Engine compart-
ment (front driver
side) Air conditioner compressor
Traction Motor
Inverter Engine compart-
ment (right rear
side) Converts the DC power stored in the high volt-
age battery to three-phase AC power and con-
trols motor torque (revolution) by regulating the
motor current. The inverter has a built in high
voltage capacitor.
Traction Motor Built-into the trans-
mission Converts three-phase alternating current (AC)
power to drive power (torque) which propels
the vehicle.
2-3 High Voltage Battery Pack Specifications High Voltage Battery Specifications
High

voltage battery voltage 346V (400V max.)
Number of high voltage battery modules in the pack 12
High voltage battery module voltage 28.8V each
High voltage battery dimensions 33.35 x 17.83 x 15.43 in. (847 x 453 x 392 mm)
High voltage battery weight 121.28 lbs (55 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 the
label shown below. All high voltage harnesses are coated in orange.
2-4.1 Warning Labels To avoid serious injury, keep clear of engine parts at all times. Engine\
may start at any time if
t

he start switch and the READY lamps on the instrument panel are "ON". Make sure both
lamps are "OFF" before working in the engine compartment. See Owners Man\
ual. ¾¯¸æ/WARNING/AVERTISSEMENT ÖØ ´ó
ÏûµÆ
Pour éviter des blessures graves, assurez-vous que les témoins STA\
RT SWITCH et READY
d

ans le tableau de bord sont éteints (OFF) avant d' entreprendre tout travail a l' intérieur du
compartiment moteur. Le moteur peut démarrer a tout moment si le contacteur d' allumage
est a la position ON et que les témoins READY du tableau de bord sont allumés. Assurez-vous
que les deux témonins sont éteints avant de travailler dans le com\
partiment moteur.
Reportez-vous au manuel du conducteur. ÉË º¦
¶¯³ö
Ïê ÀÀ
¸º
×÷ Òµ ʱ
È· ÈÏ ×Ô ¶¯ µÄʼ ¶¯ READY
A
AAYIA0410ZZ AAYIA0010ZZ
FRG–13

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. • The high voltage system and high voltage capacitor may remain powered for up to
approximately
10 minutes after the vehicle is shut off. 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. 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) . Trunk
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) Electric
Compressor DC/DC
Converter
Engine Compartment
HPCM
(Hybrid Powertrain Control Module) AAYIA0124GB
FRG–14

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 in the center area 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 (air bag deployment, etc.) or certain system malfunc-
tions this system is designed to shut off the high voltage from the high volt-
age 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–17)].
Shut

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

(FRG–19) .
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–15

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 with out 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–19) 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 Q70 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–16

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
To 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.
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.
FRG–17

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.
3-2 Vehicle Immobilization and Stabilization
Apply the parking brake and stabilize the vehicle with a wheel chock(s) or deflate the tires. Put support
material such as wooden blocks 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. AAYIA0016ZZ
FRG–18

3-3 How to Handle a Damaged Vehicle at an Accident Scene
NO
TE:
If any air bags have deployed in the following 3 situations, the high-voltage (HV) system has
been designed to automatically shut off at the time of deployment.
The Infiniti Q70 HYBRID high-voltage system incorporates capacitors which are energized whenever the
high-voltage system is on. If the high-voltage system is shut down (either through one of the built-in
automatic mechanisms or manually through one of the procedures explained in this FRG) , the capacitors
will begin to gradually discharge. After 5 minutes, the voltage level will have dropped below 60V, and
complete discharge requires approximately 10 minutes after high-voltage system shut down. It is within this
period of time that responders must be most cautious.
When arriving to an incident involving an Infiniti Q70 HYBRID, the vehicle should be approached with
caution and inspected for the level of damage. In addition to overall vehicle condition (location and severity
of body damage, air bag deployment, etc.) , the high-voltage system should be assessed specifically.
The locations of the high-voltage component parts are illustrated in this FRG. Refer to 2-2 High Voltage-
Related

and 12-Volt-Related Component Locations and Descriptions (FRG–11) . Appropriate personal pro-
tective

equipment (PPE) must always be worn when approaching a vehicle of unknown condition, as
described in this FRG.
Situation 1) High voltage system intact, occupants can be accessed without extrication tools
The HV system can be shut down by following the procedure in this guide, while wearing appropriate PPE.
After HV system shut down, occupant assistance can begin immediately, and no wait period is necessary.
Situation 2) High voltage system intact, occupants cannot be accessed without extrication tools
The HV system can be shut down by following the procedure in this guide, while wearing appropriate PPE.
After HV system shut down, absolute care must be taken not to cut through or damage any HV system
wiring, battery or components within ten (10) minutes of HV system shut down, but occupant assistance
operations using extrication equipment can begin immediately. The locations of the HV components are
illustrated in this guide.
Situation 3) High-voltage (HV) system damaged
If there is any evidence that the HV system has been compromised (such as arcing/sparking, orange wiring
harnesses cut or damaged, HV component casings damaged, etc.) , the responder may still be at risk of
high voltage exposure. The vehicle must be approached with extreme caution prior to initiating any system
shut down procedures or rendering assistance to occupants. Appropriate PPE must always be worn as
described in this guide, and the ten (10) minute wait time must be observed after HV system shut down in
order to ensure the system is de-energized.
In rare situations where vehicle damage is very severe, HV system shut down procedures as described in
this guide may not work. In these instances extreme caution and appropriate risk management must be
followed to prevent shock or electrocution to the responder or occupant.
3-3.1 High Voltage System Shut-Down Procedure
Any of the following procedures can shut down the high voltage system. The first response operation should
only begin after shutting down the high voltage system. If the vehicle is heavily damaged, for example the
high voltage battery is deformed, broken or cracked, appropriate PPE must always be used and the high
voltage battery and high voltage components must not be touched.
FRG–19

DANGER
• Failure to properly shut down the high-voltage 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) . Appropriate PPE must always be worn when touching or working on
high-voltage components.
• When contact with high-voltage components or high-voltage harnesses is
unavoidable,
or when there is risk of such contact, you must always wear appropriate
PPE. PPE must always be worn when touching or working on high-voltage
components. • The vehicle contains parts that contain powerful magnets. If a person who is
wearing
a pacemaker or other medical device is close to these parts, the medical
device may be affected by the magnets. Such persons must not perform work on the
vehicle.
• Be sure to check the READY indicator (1) in the instrument cluster, and verify that the READY indicator is off and the high voltage system is stopped.
• After the high voltage system is shut down, please wait for approximately ten (10) minutes for complete discharge of the high voltage capacitor. While waiting, do not
operate any vehicle functions.
• Remove the 12-volt battery negative (-) terminal and wait for three (3) minutes to discharge the air bag capacitor. Even though the 12-volt battery negative (-) is
disconnected, the Supplemental Restraint System (SRS) air bag maintains voltage for
three (3) minutes. There is a possibility of sudden SRS air bag inflation due to
harness short circuit or damage and it may cause serious injuries.
• The 12V system will remain active even after the 12-volt battery negative (-) terminal is removed while the high voltage system is active. This is because the DC/DC converter
will not shut down and power will be supplied to the 12V system and high voltage
system continuously. FRG–20