2017 INFINITI Q70 HYBRID battery

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 sys-
tem 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

3-1 Preparation Items
Preparation Items
Specification Purpose
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 Insulating To 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

3-3 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

Before disconnecting the 12-volt battery terminal, if necessary, lower the windows, adjust the steering
column,
adjust the seats, unlock the doors, open the trunk, etc. as required. Once the 12-volt battery is
disconnected, power controls will not operate.
Powering Down the High Voltage System
The high voltage system can be shut down with any 1 of the following procedures: • Turn OFF the power switch and disconnect the 12-volt battery.Refer to Primary Procedure (FRG–22) .
•

Remove the fuse for the high voltage control system and disconnect the 12-volt battery.
Refer to Alternate Procedure 1 (Remove Fuses) (FRG–24).
•

Remove the service plug and disconnect the 12-volt battery.
Refer to Alternate Procedure 2 (Remove Service Plug) (FRG–26).
FRG–21

Primary Procedure
NO
TE:
Before disconnecting the 12-volt battery terminal, if necessary, lower the windows, adjust the steering
column, adjust the seats, unlock the doors, etc. Once 12-volt battery is disconnected, power controls will
not operate.
1. Check the READY indicator (A) status in the instrument cluster. If it is on, the high voltage systemis active.
2. Place the shift selector in the Park (P) position.
3. Push the ignition switch (B) once to turn OFF the high voltage system. Then verify whether the READY indicator (A) is off.
If the READY indicator (A) does not turn off, refer to Alternate Procedure 1
(Remove

Fuses) (FRG–24)
4. If possible, keep the Infiniti Intelligent Key at least 5
meters (16 feet) away from the vehicle (except as
noted below) .
5. Open the trunk using any of the following: a. push-button switch (C) on the lower LH side ofthe instrument panel.
b. trunk button (D) on the Infiniti Intelligent Key [press for longer than one (1) second].
c. trunk open request switch (E) (located above license plate)*.
d. with the mechanical key (F) housed inside the Infiniti Intelligent Key.
* You must have the Infiniti Intelligent Key within approximately 1 meter (3 feet) range of
trunk request switch to use the trunk open request switch function. AAYIA0062ZZ
AAYIA0068ZZ
FRG–22

6. Open the 12-volt battery service access cover (G) .
7.
Disconnect negative (-) battery cable (H) and cover it with insulated tape.
8. Wait approximately ten (10) minutes for complete discharge of the high voltage capacitor after the battery cable has been disconnected.
9. Perform the first response action. HOLDC
D
E
F
G
H
AAYIA0359ZZ
FRG–23

5. Open the trunk. The trunk can be opened with the push-button switch (D) on the lower LH side of
the instrument panel or with the mechanical key (E) housed inside the Infiniti Intelligent Key.
6. Open the 12-volt battery service access cover (F) .
7. Disconnect negative (-) battery cable (G) and cover it with insulated tape.
8. Wait approximately ten (10) minutes for complete discharge of the high voltage capacitor after the fuse is pulled and battery cable has been disconnected.
9. Perform the first response action. OrD
E D
GF
AAYIA0126GB
FRG–25