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2-6 High Voltage Circuit Shut-Off System
This
vehicle is equipped with a system to shut off the current from the Li-ion battery by the following
methods: Service plug
Positioned in the center area of the Li-ion battery, this plug shuts off the out-
put
of high voltage when manually removed.
System main relays Controlled by the ignition switch, these relays are powered by the 12V sys- tem and shut off high voltage from the Li-ion battery.
Emergency shut-off sys-
tem In the case of a collision (air bag deployment, etc.) or certain system malfunc-
tions this system shuts off the high voltage from the Li-ion battery.
2-7 Preventing Electrical Shock 1. If it is necessary to touch any of the high voltage harnesses or components, always wearappropriate PPE (refer to 3-1 Preparation Items) . Shut off the high voltage system by referring to
3-3.1 High Voltage System Shut-Down Procedure.
2.
To avoid the risk of electrocution, do not touch the inside of the Li-ion battery with bare hands
after shutting off the high voltage system. The Li-ion battery maintains charge even though the
high voltage system is shut down.
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.
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Primary Procedure
NO
TE:
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. 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, continue to the next steps to open the trunk for 12V
battery negative cable access.
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
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Alternate Procedure 2
• Do not remove the service plug without always wearing appropriate PPE to help
protect the responder from serious injury or death by electrical shock.
• Immediately cover the service plug socket with insulated tape. To avoid electric shock, DO NOT 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.
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. 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, continue to the next steps to open the trunk for 12V
battery negative cable access. AAYIA0062ZZ
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10. Wait ten (10) minutes for complete discharge of the high voltage capacitor after the service plug
has been removed.
11. Perform the first response action.
3-3.2 Water Submersion Damage level of submerged vehicle may not be apparent. Handling a submerged vehicle
without
appropriate PPE will result in serious injury or death from electrical shock. • The ignition switch of the submerged vehicle must be turned OFF first, if possible.
Then
the vehicle must be completely out of the water and drained to avoid electrical
shock.
• Always wear appropriate PPE and remove/drain water before removing the service
plug
when working on a vehicle after a fire or submersion to avoid electrical shock.
• If the vehicle is in the water, to avoid electrical shock do not touch the high voltage
components,
harnesses or service plug.
3-3.3 Vehicle Fire • Always utilize full PPE and self-contained breathing apparatus during fire fighting
operations.
Smoke from a M35h HYBRID vehicle fire is similar to smoke from a
conventional vehicle fire.
• In the case of extinguishing a fire with water, large amounts of water from a fire hydrant (if possible) must be used. DO NOT extinguish fire with a small amount of water. In the event of a small fire, a Type ABC fire extinguisher may be used for an electrical fire
caused
by wiring harnesses, electrical components, etc. or oil fire.
Fire attack should follow standard fire fighting practices.
If you must walk away from the vehicle, notify an appropriate responder or a rescue person of the fact that
the vehicle is a hybrid vehicle and contains a high voltage system and warn all others.
During overhaul operations (late stage fire suppression process to examine for remaining sources of heat) ,
make sure the battery is fully cooled to avoid fire re-ignition. The battery could reignite if it is placed near fire.
To avoid possible electrical shock and serious personal injury, do not breach the Li-ion battery case.
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