battery NISSAN PATHFINDER HYBRID 2014 R52 / 4.G Dismantling Guide

3-1 Preparation Items
Preparation Items Specification Purpose
PPE (personal protective equipment):
Insulated gloves
Up to 1,000V For protection from high voltage electri-
cal shock
Insulated shoes
–
Safety shield
–
Wrenches
Size:10mm To remove the 12V battery terminal bolt.
Solvent resistant protec-
tion gloves
Solvent resistant
protection shoes –
To utilize in the event of a Li-ion battery
electrolytic solution leak.
–
Absorbent pad The same pad used for internal com- bustion engine fluids can be used. To absorb any Li-ion battery electrolytic
solution leakage.
Standard fire fightingequipment 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.
3-2 Personal Protective Equipment (PPE) and Insulated Tools
3-2.1 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. DG–18

3-2.2 Daily Inspection
This inspection is performed before and after use. The worker 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)
3-2.3 Insulated Tools
When performing work at locations where high voltage is applied (such as terminals) , use insulated tools
meeting 1,000V/300A specifications.
3-3 Discharge Procedures
Do not perform this procedure if the battery is damaged. If you are unsure of battery
damage, use extreme caution and wear appropriate Personal Protective Equipment (PPE) .
Li-ion battery discharging must take place before dismantling. Sufficient discharging can be achieved by
following these steps. 1. Place the shift selector into the Park (P) position
2. Apply the parking brake.
3. Set wheel chocks to ensure the vehicle is completely immobilized.
4. Fasten the driver seat belt and close the driver door.
5. Apply foot brake and press the ignition switch to turn the system ON. Confirm READY
indicator in instrument cluster turns ON.a. If the engine starts, leave the engine running until reaching normal operating temperature and the idling stops. It may take more than 10 minutes for complete engine warm up and
idling to stop.
b. If the engine is at normal operating temperature and does NOT start, move on to next step.
6. Remove the shift lock cover (A) using a suitable tool.
7. Push down the shift lock (B) as shown in the illustration.
8. Push the shift selector button (C) and move the shift selector to Neutral (N) position (D) while holding down
the shift lock.
NOTE:
DO NOT press accelerator or foot brake after
moving the shift selector to the Neutral (N)
position. Otherwise Li-ion battery will start to becharged.
NOTE:
The engine must not be running at this time. If the engine has restarted, repeat the
previous steps.
B
A
C
D
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DG–19

9. Release the parking brake.
10. Unbuckle the seat belt and open the driver door. The READY
indicator should remain ON
and the engine should not be running.
11. Turn ON electric devices such as headlamps, A/C (set to the coldest temperature) and rear window defogger to discharge the high voltage battery. Allow approximately 15 minutes to
discharge. Discharge is complete when the READY
indicator (B) (green) turns OFF, the
hybrid system warning indicator (C) (orange) turns ON and the message display indicates “Li-ion
battery low”.
12. Press the ignition switch (A) to turn the system OFF.
Please contact following number if the vehicle could not be discharged. • 1-800-647-7261 (US) or 1-800-387-0122 (Canada)
• Hours of operation are 8am - 5pm (Monday-Friday) Eastern, Central and Pacific time zones.
A
B
C
LOCK
ACC
(OFF)
ON
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1
23
4
5
6
7
8 1
1/2
PWR
PShift to Park
Li-ion battery low
P
Shift to Park
Li-ion battery low
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DG–20

3-4 How to Handle a Damaged Vehicle
3-4.1 High Voltage System Shut-Down Procedure
Any of the following procedures can shut down the high voltage system. The dismantling operation can only
begin after shutting down the high voltage system. If the vehicle is heavily damaged, for example the Li-ion
battery is deformed, broken or cracked, appropriate PPE must always be used and the Li-ion battery and
high voltage components must not be touched.
•Failure to properly shut down the high voltage system before the dismantling
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.
•
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 voltagecomponents.
•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 verify that the READY
indicator is off (if possible) , and the high voltage
system is stopped.
• After the high voltage system is shut down, please wait approximately ten (10) minutes for complete discharge of the high voltage capacitor. While waiting, do not operate any
vehicle functions.
• After shutting down the high voltage system and removing the 12V battery negative (-) terminal, wait at least three (3) minutes to discharge the air bag capacitor. Even though the
12V battery negative (-) is disconnected, the Supplemental Restraint System (SRS) air
bag maintains voltage at least three (3) minutes. During this time, 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 12V battery negative (-) terminal is removed while the high voltage system is active. This is because the charging system will
not shut down and power will be supplied to the 12V system and high voltage systemcontinuously.
Before disconnecting the 12V battery terminal, if necessary, lower the windows, adjust the steering column,
adjust the seats, unlock the doors, open the liftgate, etc. as required. Once the 12V battery is disconnected,
power controls will not operate.
DG–21

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 12V battery. Refer to
Primary Procedure (DG–23).
• Remove the underhood fuse for the high voltage control system and disconnect the 12V battery. Refer to
Alternate Procedure 1 (Removing Fuses) (DG–25).
• Remove the service plug and disconnect the 12V battery. Refer to
Alternate Procedure 2 (Remove
Service Plug) (DG–27)
.
DG–22

Primary Procedure
NOTE:Before disconnecting the 12V battery terminal, if necessary, lower the windows, adjust the
steering column, adjust the seats, unlock the doors, etc. Once 12V battery is disconnected,
power controls will not operate.
1. If possible, check the READY
indicator status in the instrument cluster. If it is on, the high
voltage system is active.
2. Place the shift selector in the Park (P) position.
3. Push the ignition switch once to turn OFF the high voltage system. Verify that the READY indicator is off and
then continue to the next steps to open the hood for
12V battery negative cable access.
If the READY indicator does not turn off, refer to
Alter-
nate Procedure 1 (Remove Fuses) (DG–25)
4. If possible, keep the NISSAN Intelligent Key® at least 5 meters (16 feet) away from the vehicle.
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ACC
LOCK
(OFF)
ON
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HOLD
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DG–23

5. Pull release handle (1) and pull up release lever (2) to open hood.
6. Remove traction motor inverter cover (1) .
7. Disconnect negative (-) battery cable and cover it withinsulated 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 dismantling operation. Refer to
Dismantling Information (DG–41).
1
2
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1
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DG–24

5. Remove traction motor inverter cover (1) .
6. Disconnect negative (-) battery cable and cover it withinsulated tape.
7. Wait approximately ten (10) minutes for complete
discharge of the high voltage capacitor after the fuse
panel and battery cable have been disconnected.
8. Perform the dismantling operation. Refer to
Dismantling
Information (DG–41)
.
1
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DG–26

Alternate Procedure 2 (Remove Service Plug)
•Do not remove the service plug without always wearing appropriate Personal
Protective Equipment (PPE) to help protect the dismantler from serious injury or death
by electrical shock.
•
Immediately cover the service plug socket with insulated tape. The Li-ion battery
retains high voltage power even when the service plug is removed. To avoid electric
shock, NEVER touch the terminals inside the socket.
To avoid unintended reinstallation and risk of electrical shock and severe personal injury
or death, the dismantler should carry the service plug on his/her person while work is in progress.
NOTE: Before disconnecting the 12V battery terminal, if necessary, lower the windows, adjust the
steering column, adjust the seats, unlock the doors, etc. Once 12V battery is disconnected,
power controls will not operate.
1. If possible, check the READY
indicator status in the instrument cluster. If it is on, the high
voltage system is active.
2. Place the shift selector in the Park (P) position.
3. Push the ignition switch once to turn OFF the high voltage system. Then verify whether the READY indicator
is off.
If the READY indicator does not turn off, continue to the
next steps.
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ACC
LOCK
(OFF)
ON
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DG–27

d. liftgate opener switch (located above licenseplate)*.
NOTE: Not all vehicles are equipped with a
liftgate opener switch in this location.
e. If the liftgate cannot be opened with the instrument panel switch, liftgate opener switch,
or key fob due to a discharged battery, follow
these steps:
• Remove the cover (A) on the inside of theliftgate.
• Move the lever (B) as illustrated to open liftgate.
Method Shift Selector Position Ignition Switch Status
a Any Any
b P or N Any c P OFF
d* Any Any e Any Any
* You must have the NISSAN Intelligent Key® within approximately 1 meter (3 feet) range of liftgate opener
switch to use the liftgate open switch function. 6. Open luggage board by lifting handle (A) .
A
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A
B
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A
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DG–29