ignition INFINITI QX60 HYBRID 2015 Dismantling Guide

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 right rear area of the high voltage battery, this plug shuts offthe 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-offsystem In the case of a collision (front and side collisions in which the air bags are
deployed, certain rear collisions) or certain system malfunctions this system
is designed to shut off the high voltage from the high voltage 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 (DG–17)].
Shut off the high voltage system by referring to
3-4.1 High Voltage System Shut-Down
Procedure (DG–20)
.
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.
DG–15

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.
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
DANGER
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) .
High voltage 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 high voltage battery will
start to be charged.
A
B
D
C
DG–18

NOTE:
The engine must not be running at this time. If the engine has restarted, repeat the previoussteps.
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. • 1-800-662-6200 (US) or 1-800-361-4792 (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–19

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
(DG–21)
.
• Remove the underhood fuse for the high voltage control system and disconnect the 12-volt battery. Refer to
Alternate Procedure 1 (Remove Fuses) (DG–23).
• Remove the service plug and disconnect the 12-volt battery. Refer to
Alternate Procedure 2
(Remove Service Plug) (DG–25)
.
Primary Procedure
NOTE: 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. 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 12-volt battery negative cable access.
If the READY indicator does not turn off, refer to
Alternate Procedure 1 (Remove Fuses) (DG–23).
4. If possible, keep the Infiniti Intelligent Key at least 5 meters (16 feet) away from the vehicle.
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ACC
LOCK
(OFF)
ON
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DG–21

Alternate Procedure 2 (Remove Service Plug)
DANGER
•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 high voltage
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 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. 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–25

d. If the liftgate cannot be opened with theinstrument panel switch, liftgate opener switch,
or key fob due to a discharged battery, follow
these steps:
• Remove the cover (A) on the inside of the
liftgate.
• Move the lever (B) as illustrated to open liftgate.
Method Shift Selector Position Ignition Switch Status
a P or N Any
b P OFF
c* Any Any d Any Any
* You must have the Infiniti Intelligent Key within approximately 1 meter (3 feet) range of liftgate opener
switch to use the liftgate opener switch function.
6. Open luggage board.
7. Open service plug access cover.
A
B
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A
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DG–27

3-4.3 Water Submersion
DANGER
Damage level of submerged vehicle may not be apparent. Handling a submerged
vehicle without appropriate Personal Protective Equipment (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 Personal Protective Equipment (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 NEVER touch the high voltage
components, harnesses or service plug. PPE must always be worn when touching or
working on high voltage components.
3-4.4 Vehicle Fire
• Always utilize full Personal Protective Equipment (PPE) and self-contained breathing apparatus during fire fighting operations. Smoke from a QX60 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.
In case of vehicle fire, contact fire department immediately and extinguish the fire if possible. 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 that contains a high voltage system and warn all others. DG–32

4. Jump Starting
To start the hybrid system with a booster battery, the instructions and precautions below must be followed.
If done incorrectly, jump starting can lead to a 12-volt battery explosion, resulting in severe
personal injury or death. It could also damage your vehicle.
Jump starting provides power to the 12-volt system to allow the electrical systems to operate. The electrical
systems must be operating to allow the high voltage battery to be charged. Jump starting does not charge
the high voltage battery.
Discharged 12-volt battery may cause the following issues: • The instrument cluster cannot be displayed while the ignition switch is turned ON. (The hybridsystem cannot start.)
• Headlamps, horn, etc. are weak.
•To avoid electrical shock, the high voltage battery CANNOT be jump started.
• Explosive hydrogen gas is always present in the vicinity of the 12-volt battery. Keep all sparks and flames away from the 12-volt battery. Make sure the vent tube is mounted.
• Do not allow battery fluid to come into contact with eyes, skin, clothing or painted surfaces. Battery fluid is a corrosive sulfuric acid solution that can cause severe burns.
If the fluid comes into contact with anything, immediately flush the contacted area
with water.
• The booster battery must be rated at 12 volts. Use of an improperly rated battery can damage the vehicle.
• Whenever working on or near a 12-volt battery, always wear suitable eye protectors (for example, goggles or industrial safety spectacles) and remove rings, metal bands, or
any other jewelry. Do not lean over the 12-volt battery when jump starting.
• Do not attempt to jump start a frozen battery. It could explode and cause serious injury.
• QX60 HYBRID is equipped with an automatic cooling fan. It could come on at any time. Keep hands and other objects away from it.
• Always follow the jump starting instructions below. Failure to do so could result in damage to the charging system and cause personal injury.
DG–34

If the green READYlight does not come on, press the START button to turn the
Hybrid System OFF. Carefully disconnect the negative cable then the positive cable.
Have the vehicle taken to an INFINITI retailer for repair.
9. After the green READY
light in the meter display comes ON, carefully disconnect the
negative cable and then the positive cable.
10. Replace the vent caps (if so equipped) . Be sure to dispose of the cloth used to cover the vent holes as it may be contaminated with corrosive acid.
11. 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 12-volt battery is low or discharged, the selector lever cannot be moved from the Park (P) position. If a booster
battery is not available, the selector lever lock can be manually released. To manually release the selector leverlock,
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) using a suitable tool asshown in the illustration.
5. Push the selector lever button (C) and move the selector lever to the Neutral (N) position (D) while holding down
the shift lock.
A
B
D
C
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DG–36