fuse box INFINITI Q70 HYBRID 2015 Dismantling Guide

2-5 High Voltage Safety System
he 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.
• 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) .
Trunk
Junction Box High Voltage 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) Electric
Compressor DC/DC
Converter
Engine Compartment
HPCM
(Hybrid Powertrain Control Module)
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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 (A) to open the hood.
2. Remove fuse box cover (B) .
3. Remove 80A fuse (C) (black) .
4. If you cannot identify the fuse (C) , remove all fuses in the fuse box.
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.
A
A
B
BC80A Fuse (Black)
Front
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4-1 Jump Starting ProceduresJumper cable connections under the hood of the Q70 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. If the booster battery is in another vehicle (A) , position the two vehicles (A) and (B) to bring thebattery of booster vehicle (A) and the fuse box of jumped vehicle (B) into close proximity to each other.
DO NOT allow the two vehicles to touch.
2. Apply the parking brake. Move the selector lever the P (Park) position. Switch off all unnecessary electrical systems (headlights, heater, air conditioner, etc.) .
3. Place the ignition switch in the “OFF” position.
• 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.
• If the hybrid system does not start right away, push the ignition switch to the OFF position and wait ten (10) seconds before trying again.
4. Connect the jumper cables in the sequence as illustrated [(1) , (2) , (3) , (4)].
5. Start the engine of the booster vehicle (A) and let it run for a few minutes.
6. Start the hybrid system of the jumped vehicle (B) in the normal manner.
7. After the hybrid system is started, carefully disconnect the jumper cables in the opposite sequence from that illustrated [(4) , (3) , (2) , (1)].
NOTE:
If it is not possible to turn the hybrid system ON by following this procedure, contact
an INFINITI retailer immediately.
8. Put the fuse cover and the engine compartment cover back to the original location.
AB
2+1
1234
+
3-4-
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17. Remove the mounting nut (A) and then disconnect theharness from the fuse box on the left side of the trunk room.
18. Disconnect the capacitor harness connector (A) and remove the ground cable mounting bolts (B) .
: Vehicle front
19. Disconnect the high voltage harness connector (A) and harness connector (B) .
: Vehicle front
DANGER
Touching high voltage components without wearing
appropriate Personal Protective Equipment (PPE) will
cause electrocution.
DANGER
Immediately protect the terminals of the disconnected
high voltage harness connector socket using insulated
tape so that they are not exposed.
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