2014 INFINITI Q70 HYBRID battery

6. After starting the hybrid system, carefully disconnect the negative cable and then the positive
cable () .
7. Reinstall the fuse box cover.
NOTE:
If it is not possible to turn the hybrid system ON by following this procedure, contact
an INFINITI retailer immediately.
4-2 Shift Selector Lever Lock Release
If the 12V battery is low or discharged, the selector lever cannot be moved from the Park (P) position. If a booster bat-
tery is not available, the selector lever lock can be manually released. To manually release the selector lever lock, perform
the following procedure: 1. Push the ignition switch to the LOCK or OFF position.
2. Apply the parking brake.
3. Remove the shift lock cover (A) using a suitable tool.
4. Push down the shift lock (B) as shown in the illustration.
5. Push the selector lever button (C) and move the selectorlever to the Neutral (N) position (D) while holding down
the shift lock. AAYIA0067ZZ
DG–35

5. Storing the Vehicle
The service plug must be removed to shut down the high voltage system for storage.
Do
not store a vehicle inside a structure. Keep the vehicle away from other vehicles if the
li-ion battery is severely damaged. There is possibility of delayed fire from a severely
damaged li-ion battery.
If the Q70 HYBRID needs to be stored or left unattended, the high voltage system must be shut down by
removing the service plug [refer to Alternate Procedure 2 (Remove Service Plug) (DG–25)] and a sign put
on

the vehicle indicating it is a hybrid vehicle with high voltage dangers. For example:
DG–36

6. Dismantling Information
Removal
or repair of the high voltage battery requires special tools and specific training. Infiniti strongly
recommends that only certified INFINITI retailer technicians perform these operations.
6-1 Precautions for Handling High Voltage Lithium-ion (Li-ion) Battery • Because Q70 HYBRID contains a high voltage (Li-ion) battery, there is the risk of
electric
shock, electric leakage, or similar accidents if the high voltage components
or vehicle is handled incorrectly. Be sure to follow the correct work procedures when
performing inspection and dismantling.
• If it is necessary to touch any of the high voltage harnesses or components you must
always
wear appropriate Personal Protective Equipment (PPE) and properly shut-down
the high voltage system by removing the service plug.
• Be sure to always wear appropriate PPE before beginning work on the high voltage
system.
• Be sure to remove the service plug in order to shut-down the high voltage system
before
performing inspection or dismantling of high voltage system harnesses and
parts.
• If the vehicle is heavily damaged, for example the Li-ion battery is deformed, broken,
or

cracked; appropriate PPE must always be used at all times to avoid electrical shock.
DG–38

• The colors of the high voltage harnesses and connectors are all orange. Orange
High
V
oltage labels are applied to the Li-ion battery and other high voltage devices. Do not
touch the Li-ion battery or other high voltage devices without always wearing appropriate
PPE.
• Clearly identify the persons responsible for high voltage work and ensure that other
persons
do not touch the vehicle. When not working, cover high voltage parts with an
insulating cover sheet and sign or similar item to prevent other persons from contacting
them.
• Be sure to put the removed service plug in your pocket and carry it with you so
another
person does not accidentally reinstall it while work is in progress.
• The high voltage battery retains high voltage at all times. 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.
• Immediately insulate disconnected high voltage connectors and terminals with
insulated
tape.
• 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.
• Because this vehicle uses components that contain high voltage and powerful
magnetism,
do not carry any metal products which may cause short circuits, or any
magnetic media (cash cards, credit cards, etc.) which may be damaged when working on
the vehicle.
• Keep removed Li-ion battery packs away from rain to avoid electric shock.
•

Do not heat removed battery packs higher than 158° F (70° C) . There is the possibility of a hybrid system malfunction occurring if the vehicle is changed to
READ

Y status while the service plug is removed.
DG–39

6-2 Lithium-ion (Li-ion) Battery Pack Removal
6-2.1
Exploded View
1. Battery inlet duct A 2. Li-ion battery assembly 3. DC/DC converter outlet duct
4. Battery outlet duct B 5. Battery outlet duct A6. Battery inlet duct B
7. Battery cooling fan 8. DC/DC converter inlet duct
6-2.2 Removal Procedure 1. Remove the service plug. Refer to Alternate Procedure 2 (Remove Service Plug) (DG–25)
.
2.

Insert an appropriate tool into the gap between the trunk lamp case and front trunk trim panel to
remove the trunk lamp case.
3. Disconnect the trunk lamp harness connector.
4. Remove the trunk lid weather strip.
5. Remove the front trunk trim retainer clips. AAYIA0036ZZ
DG–40

6. Remove the front trunk trim panel (1) and remove the trunk floor trim panel (2) .
7.
Remove the battery inlet duct A (1) , DC/DC converter outlet duct (2) and battery outlet duct B
(3) .
8. Remove the DC/DC harness (1) , the 12V battery vent tube (2) and the high voltage harness clip (A) . Grip the tip of the tube to remove the 12V battery vent
tube. AAYIA0070ZZ
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DG–41

9. Remove the mounting bolts (A) and then remove the 12V
battery cover (1) .
10. Disconnect the fusible link connectors (2) that are integrated with the 12V positive battery cable (1) .
11. Remove 12V battery by removing the negative battery cable (1) , positive battery cable (2) and frame (3) . To prevent damage to the parts:
a)

Disconnect the negative battery cable first
b) Immediately cover the battery cables with insulated
tape.
12. Remove the terminal cover bolts (A) and nut (B) , then remove the terminal cover (1) . Touching high voltage components without wearing
appropriate

Personal Protective Equipment (PPE) will
cause electrocution. AAYIA0072ZZ
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DG–42

13. Disconnect the high voltage harness connectors (A) .
T ouching high voltage components without wearing
appropriate personal protective equipment (PPE) will
cause electrocution. • Touching high voltage components without
wearing
appropriate Personal Protective
Equipment (PPE) will cause electrocution.
• Immediately cover the terminals of the
disconnected
high voltage harness connectors
using insulated tape so that they are not
exposed.
• Immediately protect the terminals of the
disconnected
battery junction box using
insulated tape so that they are not exposed.
14. Grasp the rubber base of the gas discharge tube (1) and remove from the vehicle-side discharge port (body
member) . Touching high voltage components without wearing
appropriate

Personal Protective Equipment (PPE) will
cause electrocution.
15. Hook approximately 15mm (A) from the end of the gas discharge tube (1) onto the tube base on the battery and
check that the flange on the end of the tube does not
come off from the tube base. Touching high voltage components without wearing
appropriate

Personal Protective Equipment (PPE) will
cause electrocution. JSCIA0014ZZ
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DG–43