2014 NISSAN LEAF battery

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
If possible, immobilize the vehicle by turning the 12V 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. • Do not stabilize the vehicle with cribbing under the Li-ion battery.
•

To avoid electrical shock, do not put the Lift Airbag Equipment for rescue and wheel
chock(s) under the high voltage components and harnesses as shown following. =
= Li-ion battery
Do Not Lift Zone
3N-3 3N-4
3N-1 3N-2 Li-ion batteryDAN
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FRG–14

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 Nissan LEAF 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 a Nissan LEAF, 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 2-1 High Voltage-Related and
12V-Related

Component Locations and Descriptions (FRG–8) . Appropriate Personal Protective 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 procedures 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.
FRG–15

3-3.1 High Voltage System Shut-Down Procedures
Any
of the following procedures can shut down and isolate 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 Li-ion battery is deformed, broken or cracked, appropriate Personal Protective Equipment
(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 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
• 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.
FRG–16

• If the charge connector is connected to the vehicle, remove it. Refer to
Removing the
Charge
Connector (FRG–17) .
• 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 and the high voltage system is
stopped.
•

After the high voltage system is shut down, please wait at least ten (10) minutes for
complete discharge of the high voltage capacitor. While waiting, do not operate any vehicle
functions.
NOTE:
The high voltage full discharge takes ten (10) minutes, but after five (5) minutes the voltage
has dropped below 60V.
• 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.
• Always shut down the high voltage system before disconnecting the 12V battery. Not doing so may result in serious injury or death from electrical shock.
• The 12V system will remain active even after the 12V battery negative (-) terminal is removed while the high voltage system is active. The high voltage system is active during
any of the following conditions:
– charging indicator is turned ON
– READY indicator is turned ON
Refer to 1-1.2 Interior Component Location (FRG–6) for location of these indicators. This is
because

DC/DC converter will not shut down and power will be supplied to the 12V
system and high voltage system continuously.
FRG–17

Indications the High Voltage System is ON
1. If the READY indicator is ON, the high voltage system is active.
2.

The high voltage system is active if any charge indicator
is ON (blue LEDs on top of the instrument panel) .
Before disconnecting the 12V battery terminal, if necessary, lower the windows, unlock the doors, and open
the rear hatch as required. Once 12V 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 anddisconnect the 12V battery. Refer to
Primary Procedure (FRG–20).
•

Remove the fuses for the high voltage control system and disconnect the 12V battery. Refer to
Alternate Procedure 1 (Remove Fuses) (FRG–21) .
•

Remove the service plug and disconnect the 12V battery. Refer to Alternate Procedure 2
(Remove

Service Plug) (FRG–24) .
Primary

Procedure
1. Check the READY indicator status. If it is ON, the high voltage system is active.
2.

Place the selector lever in the Park (P) position.
3. Press the power switch once to turn OFF the high voltage system. Then verify whether the READY indicator is OFF and 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
Alternate Procedure 1 (Remove Fuses) (FRG–21)
4. If possible, keep the Nissan Intelligent Key® at least 5 meters
(16 feet) away from the vehicle. AAYIA0155ZZ
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HOLD
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FRG–20

5. Open the hood.
6.
Disconnect the negative (-) 12V battery cable (1) .
Insulate the negative (-) battery cable terminal with
insulated tape.
NOTE: : Arrow in illustration depicts vehicle front
direction.
7. Wait

at least ten (10) minutes for complete discharge of the high voltage capacitor after
the power switch has been turned OFF.
8. Perform the first response action.
Alternate Procedure 1 (Remove Fuses) 1. Open the hood. AAYIA0145ZZ
1
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FRG–21

4. Remove the fuse box cover and remove the 20A VCM fuse.
NO TE: : Arrow in illustration depicts vehicle front direction.
5.

If you cannot identify the above fuses, remove all fuses in the fuse boxes.
6. Disconnect the negative (-) 12V battery cable (1) . Insulate the negative (-) battery cable terminal with
insulated tape.
NOTE: : Arrow in illustration depicts vehicle front
direction.
7. Wait

at least ten (10) minutes for complete discharge of the high voltage capacitor after
the fuses are pulled.
8. Perform the first response action. To avoid unintended reinstallation and risk of electrical shock and severe personal injury
or

death, the rescuer should carry the fuses on his/her person and cover the fuse box with
insulated tape. 20A VCM (Yellow)
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FRG–23

Alternate Procedure 2 (Remove Service Plug)
• Do not remove the service plug without always wearing appropriate Personal
Protective Equipment (PPE) to help protect the responder 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 rescuer should carry the service plug on his/her person while work is in
progress.
1. Insert a suitable tool (1) under the RH rear corner of theaccess trim cover located on the floor behind the center
console. Pry up (2) and remove.
NOTE: : Arrow in illustration depicts vehicle front
direction.
2.

Remove the 10 mm access cover bolts (1) and remove
the cover (2) .
NOTE: : Arrow in illustration depicts vehicle front
direction.
3.

Remove the service plug using the following steps: (1) pull up and release the green lever, (2)
press the locking tab to release and rotate fully upward, (3) pull the service plug completely out of
its socket. 12
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1
2
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FRG–24