torque INFINITI Q50 HYBRID 2018 Roadside Assistance Guide

2-2 High-voltage-Related and 12-Volt-Related Component Locations and
Descriptions
NO
TE:
Components with white number in black background are high-voltage components. No. Component
LocationDescription
T

raction Motor
Inverter
Engine compartment
(right rear side)Converts the DC power stored in the high-
voltage battery to three-phase AC power and
controls motor torque (revolution) by regulating
the motor current. The inverter has a built in
high-voltage capacitor. 51 3 4
6
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No. Component
LocationDescription
T
raction Motor Built-into the transmission Converts three-phase alternating current (AC)
power to drive power (torque) which propels
the vehicle.
High-voltage
Battery
Trunk area (behind
rear seat back) The high-voltage battery stores and outputs
DC power (Maximum voltage 400V) needed to
propel the vehicle.
DC/DC Converter Trunk area (mounted to top of high-
voltage battery) The DC/DC converter reduces the voltage of
the high-voltage battery to provide power to
the 12-volt battery in order to operate the
vehicle’s electric components (headlights,
audio system, etc.) .
Service Plug Trunk area (below
parcel shelf; behind
access door in trim
panel) This is used to disable the high-voltage system.
12-volt Battery Trunk area (left side
behind trim panel) A lead-acid battery that supplies power to the
low voltage devices.
High-voltage
Harnesses Trunk area (on high-
voltage battery) ,
under floor pan,
engine compartment Orange-colored power cables carry high DC
voltage between each of the high-voltage
components.
Electric Air Condi-
tioner Compressor
Engine compartment
(front driver side)Air conditioner compressor
2-3 High-voltage Battery Pack Specifications High-voltage Battery Specifications
High-voltage

battery voltage 346V (400V max.)
Number of high-voltage battery modules in the pack 12 modules (96 cells)
High-voltage battery module voltage 28.8V each
High-voltage battery dimensions 29.63 x 17.81 x 14.85 in.
(752.5 x 452.4 x 377.1 mm)
High-voltage battery weight 108.05 lbs (49 kg)
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3. To lift the vehicle, securely hold the jack lever and rod with both hands as shown. Carefully raise
the vehicle until the tire clears the ground. Remove the wheel nuts, and then remove the tire.
4. Install new or repaired tire and hand-tighten the wheel nuts with the wheel nut wrench in an alternating pattern. Always follow these instructions when changing a tire:
•

Incorrect wheel nuts or improperly tightened wheel
nuts can cause the wheel to become loose or come
off. This could cause an accident.
• Do not use oil or grease on the wheel studs or nuts. This could cause the nuts to become loose.
Failure to follow these instructions can result in serious
personal injury or death and/or vehicle damage.
5. Securely torque the wheel nuts in an alternating pattern to 80 ft-lb (108 Nm) .
6. Lower the vehicle and remove the jack and securely store the flat tire, tools and jackingequipment in the vehicle. Always follow these instructions when using the jacking equipment or after changing a tire:
•

Always make sure that the spare tire and jacking equipment are properly secured after
use. Such items can become dangerous projectiles in an accident or sudden stop.
Failure to follow these instructions can result in serious personal injury or death and/or
vehicle damage.
NOTE:
To help prevent squeaks and rattles, check that the tools are reinstalled and properly secured
in the stored place after use. AAYIA0136ZZ
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