fuse INFINITI QX60 HYBRID 2016 Dismantling Guide

2-5 High-Voltage Safety System
The
high-voltage safety system is intended to help keep vehicle occupants and emergency responders safe
from high-voltage electricity. • A high-voltage fuse provides short circuit protection inside the high-voltage battery.
• The high-voltage safety system is insulated from the metal chassis.
• Positive and negative high-voltage power cables are connected to the high-voltage battery and arecontrolled by normally open system main relays (SMR1 and SMR2) . When the vehicle is shut off,
the relays stop electrical flow from leaving the high-voltage battery. However, it can take
approximately ten (10) minutes for the high-voltage capacitor to fully discharge. • The high-voltage system and high-voltage capacitor may remain powered for up to
approximately
10 minutes after the vehicle is shut off. Appropriate 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.
• The high-voltage battery retains high-voltage at all times. Appropriate 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.
• A ground fault monitor continuously monitors for high-voltage leakage to the metal chassis while the vehicle is running. If a malfunction is detected, the HPCM (hybrid powertrain control module) will
illuminate the hybrid system warning lamp in the instrument cluster.
•

The high-voltage battery relays (SMR1 and SMR2) will automatically open to stop the electrical flow
in a front, side or certain rear collisions that are sufficient enough to activate the supplemental
restraint system (SRS) . HPCM
(Hybr

id Powertrain
Control Module) DC/DC
Converter
Service Plug
(With Fuse)
Traction Motor
Inverter
(With built in
High-Voltage capacitor)
Traction
Motor Junction Box
Transmission Engine Compartment
Cargo Area
High-Voltage Battery
System main relay 1
System main relay 2 AAYIA0166GB
DG–14

Powering Down the High-Voltage System
The
high-voltage system can be shut down with any 1 of the following procedures:• Turn OFF the ignition 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. AAYIA0191ZZ
ACC
LOCK
(OFF)
ON
AAYIA0271ZZ AAYIA0340ZZ
DG–21

Alternate Procedure 1 (Remove Fuses)
NO
TE:
Before removing any fuses, if necessary, lower the windows, adjust the steering column,
adjust the seats, unlock the doors, etc. Once fuses are removed, power controls will not
operate.
1. Pull release handle (1) and pull up release lever (2) to open the hood.
2. Release clips (A) and remove fuse box cover (1) . : Vehicle front
3.

Remove IGCT RLY fuse (F/L V IGCT RLY 50A) .
4. If you cannot identify the correct fuse, remove all the fuses. To avoid unintended reinstallation and risk of
electrical
shock and severe personal injury or death, the
dismantler should carry the fuse or fuses on his/her
person and cover the fuse box with insulated tape. 1 2
AAYIA0272ZZ 1 A
AAYIA0303ZZ
F/L V IGCT RLY 50A
(Red)
AAYIA0071GB
DG–23

5. Remove traction motor inverter cover (1) .
6.
Disconnect negative (-) battery cable and cover it with
insulated 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 6. Dismantling Information (DG–39). 1
AAYIA0273ZZ AAYIA0274ZZ
DG–24

13. Disconnect negative (-) battery cable and cover it with
insulated tape.
14. Perform the dismantling operation. Refer to 6. Dismantling Information (DG–39).
3-4.2

Cutting the Vehicle Body DANGER
• Do not cut into high-voltage related areas to avoid severe personal injury or death.
• Do not cut into the high-voltage battery to avoid severe personal injury or death.
• When removing parts, NEVER touch the high-voltage parts or the insides of the
exposed
orange-colored high-voltage cables to avoid severe personal injury or
death. Appropriate Personal Protective Equipment (PPE) must always be worn when
touching or working on high-voltage components. To avoid unintended reinstallation and risk of electrical shock and severe personal injury or
death,

the dismantler should carry the fuses or service plug on his/her person while work
is in progress. Do not cut air bag parts to avoid unintended deployment of the air bags and the risk of
severe

personal injury or death.
If approximately (10) minutes have passed since the dismantler shut down the high-voltage system [refer
to 3-4.1 High-Voltage System Shut-Down Procedure (DG–20)], then the dismantler can cut the vehicle
except

for the high-voltage battery. DO NOT cut the high-voltage battery due to possible electrocution risk and electrolyte solution
leakage. AAYIA0274ZZ
DG–29

4-1 Jump Starting Procedures
NO
TE:
Jumper cable connections under the hood of the QX60 HYBRID are not connected directly
to a battery. They are connected to chassis ground and a fuse box terminal. Refer to the
following instructions and the above illustration.
1. Locate the fuse box behind the engine air cleaner.
2. Push the tab in and lift up (A) to remove the fuse box cover and expose the remote positivebattery terminal (B) .
3. If the booster battery is in another vehicle, position the two vehicles to bring their batteries near each other.
DO NOT allow the two vehicles to touch.
4. Apply the parking brake. Move the selector lever the P (Park) . Switch off all unnecessary electrical systems (lights, heater, air conditioner, etc.) .
5. Remove vent caps on the battery (if so equipped) of the vehicle with battery for booster. Cover the battery with an old cloth (F) to reduce explosion hazard.
6. Connect jumper cables in the sequence as illustrated (BCDE) . • Always connect positive (+) to positive (+) and negative (-) to body ground (for example,
as
illustrated) , not to the 12-volt battery.
• Make sure the jumper cables do not touch moving parts in the engine compartment and that the cable clamps do not contact any other metal.
7. Start the engine of the booster vehicle and let it run for a few minutes.
8. Hold down the brake pedal and press the START button. The vehicle instruments and gauges will light up, and the green READY light will come ON. FA
E D
B B
+
C
+
Cloth
Vehicle being jump started
Vehicle with
battery for
boosterAAYIA0072GB
DG–35

If the green READY light does not come on, press the START button to turn the
Hybrid
System OFF. Carefully disconnect the negative cable then the positive cable. It is
recommended the vehicle is 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, it is
recommended you 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 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 using a suitable tool.
4. Push down the shift lock using a suitable tool as shownin the illustration.
5. Push the selector lever button and move the selector lever to the Neutral (N) position while holding down the
shift lock.
+-
PNRD AAYIA0487ZZ
DG–36