air condition INFINITI Q50 HYBRID 2018 Dismantling Guide

1-3 Warning and Indicator Lamp Information
1. Master Warning Lamp (Orange or Red) 2. Hybrid System Overheated Stop Vehicle Warning
(Vehicle Information Display)
3. Hybrid System Warning Lamp (Orange) 4. READY Indicator (Green)Lamp Name
Icon Description
READ
Y Indicator
(Green) This lamp is on when the high-voltage system is powered
up

and the vehicle is ready to drive.
Master Warning Lamp
(Orange or Red) This lamp is on when another warning lamp or message is
displayed

in the instrument cluster.
Hybrid System
Warning Lamp
(Orange) This lamp is on or blinking when:
•

Malfunction has occurred in the hybrid control system
and/or
• High-voltage leak to vehicle chassis and/or
• Emergency shut-off system has been activated. The shut-off system activates in the following conditions:
– Front and side collisions in which the air bags are deployed.
– Certain rear collisions.
– Certain high-voltage system malfunctions. 00
0
40
80
120
160
200
240
280
km/h
MPH 20
40
1 2
3
4

5
6
7
8
9
0
PWR
RPMx1000
6080
100
120
140
160
180
1
1/2 1 2 3 4
Hybr

id System Overheated Stop Vehicle
Warning AAYIA0179ZZ
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2. Basic High-voltage Information
2-1
Battery Information
The Q50 HYBRID utilizes two batteries in order to supply both high and low voltage.
2-1.1 12-Volt Battery • The Q50 HYBRID contains a conventional lead-acid12-volt battery.
• The 12-volt battery is located in the trunk, on the left side, concealed by a trim cover (A) .
• The 12-volt battery is charged by the high-voltage battery through the DC/DC converter.
2-1.2 High-voltage Battery • The Q50 HYBRID contains a high-voltage battery.
• The high-voltage battery is mounted in the trunk areabehind the rear seat, enclosed in a metal case and
concealed by trim cover.
• The high-voltage battery stores energy at approximately 346 - 400 volts DC.
• A vent hose is provided to exhaust gasses outside the vehicle if necessary.
• An air vent (A) is located on the rear left hand lower C-pillar trim for battery cooling.
The high-voltage battery supplies power to the following: • High-voltage harnesses
• DC/DC converter
• Traction motor inverter
• Traction motor
• Electric air conditioner compressor A
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A
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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
Conditioner
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)
2-4 High-voltage Safety Measures Circuit insulation
The high-voltage positive (+) and negative (-) circuits are insulated
from
the metal chassis.
Reducing the risk of electrocution The high-voltage components and harnesses have insulated cases or orange-colored coverings which provide insulation and easy
identification.
The high-voltage battery case is electrically connected to the vehicle
ground. This connection helps protect the vehicle occupants and
vehicle dismantlers from high-voltage electrical shock.
Identification The high-voltage components are labeled “WARNING” similar to the
label shown below. All high-voltage harnesses are coated in orange.
DG–12

SRS Air Bag System Components Location
The
SRS air bag system must not be cut as there is a risk of short circuit and unintentional deployment of
the SRS However, the vehicle can be cut (except inflators) under the following conditions: • The front, side and curtain air bags have deployed.
• At least three (3) minutes have passed after the 12-volt battery negative (-) cable has beendisconnected and the high-voltage system has been shut down.
1. Crash zone sensor (located
underhood near hood latch) 2. Supplemental front air bag
modules (Infiniti Advanced Air
Bags)3. Front seat-mounted side-
impact supplemental air bags
4. Roof-mounted curtain side-
impact supplemental air bags 5. Roof-mounted curtain side-
impact supplemental air bag
inflators6. C-pillar satellite sensors
(LH shown, RH similar)
7. Seat belt buckle pretensioners 8. Seat belts with pretensioners 9. B-pillar satellite sensors
10. Air bag control unit (ACU) 11. Front door satellite sensors (LH shown, RH similar) 21
10 4 53
8 7 6
9
11
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4-1 Jump Starting Procedures
: Vehicle front
NO
TE:
Jumper cable connections under the hood of the Q50 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 the12-volt battery and fuse box 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. Remove fuse box cover on the Q50 HYBRID and connect jumper cables in the sequence as illustrated () .
For models with a steering wheel lock mechanism:
If the 12-volt battery is disconnected or discharged, the steering wheel will lock and cannot be
turned. Supply power using jumper cables before pushing the ignition switch and disengaging
the steering lock. TGAAYIA0005ZZ
DG–38