2011 INFINITI QX56 run flat

WCS-18
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (COMBINATION METER)
4WD W/L Lighting history of 4WD warning lamp.
FUEL W/L Lighting history of low fuel level warning.
WASHER W/L Lighting history of low washer fluid warning.
AIR PRES W/L Lighting history of low tire pressure warning lamp.
KEY G/Y W/L Lighting history of KEY warning lamp.
KEY R W/L This item is displayed, but cannot be monitored.
KEY KNOB W/L This item is displa yed, but cannot be monitored.
EPS W/L This item is displayed, but cannot be monitored.
e-4WD This item is displayed, but cannot be monitored.
AFS OFF IND This item is displayed, but cannot be monitored.
4WAS/RAS W/L This item is displayed, but cannot be monitored.
HDC W/L This item is displayed, but cannot be monitored.
SYS FAIL W/L This item is displa yed, but cannot be monitored.
SFT POSI W/L This item is displayed, but cannot be monitored.
HV BAT W/L This item is displayed, but cannot be monitored.
HEV BRAKE W/L This item is displayed, but cannot be monitored.
SFT OPER W/L This item is displayed, but cannot be monitored.
LANE W/L Lighting history of lane departure warning lamp.
CHAGE W/L This item is displayed, but cannot be monitored.
OIL LEV LOW This item is displayed, but cannot be monitored.
DPF W/L This item is displayed, but cannot be monitored.
TRAILER IND This item is displayed, but cannot be monitored.
RUN FLAT W/L This item is displa yed, but cannot be monitored.
E-SUS W/L This item is displayed, but cannot be monitored.
LAUNCH CNT W/L This item is displayed, but cannot be monitored.
BRAKE PAD W/L This item is displa yed, but cannot be monitored.
Display item Description
Revision: 2010 May2011 QX56

PRECAUTIONSWT-3
< PRECAUTION >
C
DF
G H
I
J
K L
M A
B
WT
N
O P
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006256474
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision that would result in air ba g inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
 When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
 When using air or electric power tools or hammers , always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wh eel Rotation after Battery Disconnect
INFOID:0000000006256475
NOTE:
 Before removing and installing any control units, first tu rn the push-button ignition switch to the LOCK posi-
tion, then disconnect both battery cables.
 After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnos is according to self-diagnosis results.
For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the batte ry disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Turn the push-button ignition switch to ACC position. (At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock wil l remain released with both battery cables discon-
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
Revision: 2010 May2011 QX56

WT-64
< REMOVAL AND INSTALLATION >
ROAD WHEEL TIRE ASSEMBLY
REMOVAL AND INSTALLATION
ROAD WHEEL TIRE ASSEMBLY
Exploded ViewINFOID:0000000006225547
Removal and InstallationINFOID:0000000006225548
REMOVAL
1. Remove wheel nuts.
2. Remove tire assembly.
INSTALLATION
Note the following, install in the reverse order of removal.
 When replacing or rotating wheels, perform the ID registration. Refer to WT-29, "
Work Procedure".
InspectionINFOID:0000000006225549
ALUMINUM WHEEL
1. Check tires for wear and improper inflation.
2. Check wheels for deformation, cracks and other damage. If deformed, remove wheel and check wheel
runout.
a. Remove tire from aluminum wheel and mount on a tire balance machine.
b. Set dial indicator as shown in the figure.
c. Check radial runout, if the latera l deflection (A) or vertical deflec-
tion (B) for radial runout value exceeds the limit, replace alumi-
num wheel.
1. Tire assembly
Refer to GI-4, "
Components" for symbols in the figure.
JPEIC0088GB
Limit
Lateral deflection (A) : Refer to WT-69, "
Road Wheel".
Vertical deflection (B) : Refer to WT-69, "
Road Wheel".
SEIA0737E
Revision: 2010 May2011 QX56

PRECAUTIONSWW-3
< PRECAUTION >
C
DE
F
G H
I
J
K
M A
B
WW
N
O P
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006349780
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision that would result in air ba g inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
 When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
 When using air or electric power tools or hammers , always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wh eel Rotation after Battery Disconnect
INFOID:0000000006300446
NOTE:
 Before removing and installing any control units, first tu rn the push-button ignition switch to the LOCK posi-
tion, then disconnect both battery cables.
 After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnos is according to self-diagnosis results.
For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the batte ry disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Turn the push-button ignition switch to ACC position. (At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock wil l remain released with both battery cables discon-
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
Revision: 2010 May2011 QX56