2014 INFINITI QX60 HYBRID fuse

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. 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. 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.
Cargo Area
Junction Box Li-ion Battery
System main relay 1
Service Plug (With Fuse)
System main relay 2
Transmission
Traction Motor Traction
Motor Inverter
(With built in high
voltage capacitor) DC/DC
Converter
HPCM
(Hybrid Powertrain Control Module)
Engine Compartment
AAYIA0070GB
FRG–15

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 (FRG–23).
• Remove the underhood fuse for the high voltage control system and disconnect the 12V battery. Refer to
Alternate Procedure 1 (Remove Fuses) (FRG–25).
• Remove the service plug and disconnect the 12V battery. Refer to
Alternate Procedure 2 (Remove
Service Plug) (FRG–27)
.
FRG–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) (FRG–25)
4. If possible, keep the INFINITI Intelligent Key™ at least 5 meters (16 feet) away from the vehicle.
5. Pull release handle (1) and pull up release lever (2) to open hood.
AAYIA0191ZZ
ACC
LOCK
(OFF)
ON
AAYIA0271ZZ
HOLD
AAYIA0315ZZ
FRG–23

Alternate Procedure 1 (Remove Fuses)
NOTE: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 notoperate.
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
rescuer 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
FRG–25

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 first response action.
1
AAYIA0273ZZ
AAYIA0274ZZ
FRG–26