INFINITI QX56 2006 Factory Service Manual

SB-12
SEAT BELTS
Revision: November 20092006 QX56
SEAT BELT RETRACTOR ON-VEHICLE CHECK
Emergency Locking Retractors (ELR) and Automatic Locking Retractors (ALR)
NOTE:
All seat belt retractors are of the Emergency Locking Retractors (ELR) type. In an emergency (sudden stop)
the retractor will lock and prevent the belt from extending any further. All 3-point type seat belt retractors
except the driver's seat belt also have an Automatic Locking Retractors (ALR) mode. The ALR mode (also
called child restraint mode) is used when installing child seats. The ALR mode is activated when the seat belt
is fully extended. When the belt is then retracted partially, the ALR mode automatically locks the seat belt in a
specific position so the belt cannot be extended any further. To cancel the ALR mode, allow the seat belt to
fully wind back into the retractor.
Check the seat belt retractors using the following test(s) to determine if a seat belt retractor and belt assembly
is operating properly.
ELR Function Stationary Check
Grasp the shoulder belt and pull forward quickly. The retractor should lock and prevent the belt from extending
further.
ALR Function Stationary Check
1. Pull out entire length of seat belt from retractor until a click is heard.
2. Retract the belt partially. A clicking noise should be heard as the belt retracts indicating that the retractor is
in the Automatic Locking Retractor (ALR) mode.
3. Grasp the seat belt and try to pull out the retractor. The belt must lock and not extend any further. If neces- sary replace the seat belt retractor and belt assembly.
4. Allow the entire length of the belt to retract to cancel the automatic locking mode.
ELR Function Moving Check
WARNING:
Perform the following test in a safe, open area clear of other vehicles and obstructions (for example, a
large, empty parking lot). Road surface must be paved and dry. DO NOT perform the following test on
wet or gravel roads or on public streets and highways. This could result in an accident and serious
personal injury. The driver and passenger must be prepared to brace themselves in the event the
retractor does not lock.
1. Fasten drivers seat belt. Buckle a passenger into the seat for the belt that is to be tested.
2. Proceed to the designated safe area.
3. Drive the vehicle at approximately 16 km/h (10 MPH). Notify any passengers of a pending sudden stop. The driver and passenger must be prepared to brace themselves in the event the retractor does not lock.
Apply brakes firmly and make a very hard stop.
During stop, seat belts should lock and not be extended. If the seat belt retractor and belt assembly does not
lock, perform the retractor off-vehicle check.
SEAT BELT RETRACTOR OFF-VEHICLE CHECK
1. Remove the seat belt retractor and belt assembly.
2. Slowly pull out belt while tilting the retractor assembly forward from the mounted position without twisting the retractor assembly as shown in the illustration.

SEAT BELTSSB-13
C
DE
F
G
I
J
K L
M A
B
SB
Revision: November 2009 2006 QX56
If NG, replace the retractor assembly.15 degrees or less tilt : Belt can be pulled out.
35 degrees or more tilt : Belt locks and cannot be pulled out.
PHIA0257E

SB-14
LATCH (LOWER ANCHORS AND TETHER FOR CHILDREN) SYSTEM
Revision: November 20092006 QX56
LATCH (LOWER ANCHORS AND TETHER FOR CHILDREN) SYSTEMPFP:75466
Removal and InstallationEHS00168
NOTE:
The LATCH (Lower Anchors and Tether for Children) system is not serviceable.

TOP TETHER STRAP CHILD RESTRAINTSB-15
C
DE
F
G
I
J
K L
M A
B
SB
Revision: November 2009 2006 QX56
TOP TETHER STRAP CHILD RESTRAINTPFP:88000
Removal and InstallationEHS00169
1. Remove luggage room rear lower finisher. Refer to EI-40, "LUG-
GAGE FLOOR TRIM" .
2. Remove bolt and remove tether anchor from the luggage box bracket.
Installation is in the reverse order of removal.
WHIA0135E

SB-16
TOP TETHER STRAP CHILD RESTRAINT
Revision: November 20092006 QX56

SC-1
STARTING & CHARGING SYSTEM
K ELECTRICAL
CONTENTS
C
DE
F
G H
I
J
L
M
SECTION
A
B
SC
Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 2
PREPARATION ...................................................... ..... 3
Special Service Tool ............................................ ..... 3
Commercial Service Tools ................................... ..... 3
BATTERY ............................................................... ..... 4
How to Handle Battery ............................................. 4 METHODS OF PREVENTING OVER-DIS-
CHARGE .......................................................... ..... 4
CHECKING ELECTROLYTE LEVEL ............... ..... 4
SPECIFIC GRAVITY CHECK .......................... ..... 5
CHARGING THE BATTERY ............................ ..... 6
Trouble Diagnoses with Battery/Starting/Charging
System Tester ..................................................... ..... 6
DIAGNOSTIC RESULT ITEM CHART ............. ..... 8
Removal and Installation ..................................... ..... 9
REMOVAL ........................................................ ..... 9
INSTALLATION ................................................ ..... 9
STARTING SYSTEM ............................................. ... 10
System Description ............................................. ... 10
Wiring Diagram — START — .............................. .... 11
Trouble Diagnoses with Battery/Starting/Charging
System Tester ..................................................... ... 12
DIAGNOSTIC RESULT ITEM CHART ............. ... 12
WORK FLOW ................................................... ... 13DIAGNOSTIC PROCEDURE 1 ........................
... 14
DIAGNOSTIC PROCEDURE 2 ........................ ... 15
MINIMUM SPECIFICATION OF CRANKING
VOLTAGE REFERENCING COOLANT TEM-
PERATURE ...................................................... ... 16
Removal and Installation ..................................... ... 16
REMOVAL ........................................................ ... 16
INSTALLATION ................................................ ... 16
CHARGING SYSTEM ............................................ ... 17
System Description .............................................. ... 17
Wiring Diagram — CHARGE — .......................... ... 18
Trouble Diagnoses with Battery/Starting/Charging
System Tester ...................................................... ... 19
DIAGNOSTIC RESULT ITEM CHART ............. ... 20
WORK FLOW ................................................... ... 21
DIAGNOSTIC PROCEDURE 1 ........................ ... 22
DIAGNOSTIC PROCEDURE 2 ........................ ... 23
DIAGNOSTIC PROCEDURE 3 ........................ ... 24
MALFUNCTION INDICATOR ........................... ... 25
Removal and Installation ..................................... ... 25
REMOVAL ........................................................ ... 25
INSTALLATION ................................................ ... 25
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 26
Battery ................................................................. ... 26
Starter .................................................................. ... 26
Generator ............................................................ ... 26

SC-2
PRECAUTIONS
Revision: November 20092006 QX56
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EKS00B74
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER ”, used along
with a front seat belt, helps to reduce the risk or severity 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 and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

PREPARATIONSC-3
C
DE
F
G H
I
J
L
M A
B
SC
Revision: November 2009 2006 QX56
PREPARATIONPFP:00002
Special Service ToolEKS00B76
Commercial Service ToolsEKS00B77
Tool number
(Kent-Moore No.)
Tool nameDescription
—
(J-44373)
Battery/Starting/Charging system
tester Model 620
SEL403X
Tool name
Description
Power tool Loosening bolts and nuts
PBIC0190E

SC-4
BATTERY
Revision: November 20092006 QX56
BATTERYPFP:AYBGL
How to Handle BatteryEKS00B78
CAUTION:

If it becomes necessary to start the engine with a booster battery and jumper cables, use a 12-volt
booster battery.

After connecting battery cables, ensure that they are tightly clamped to battery terminals for good
contact.

Never add distilled water through the hole used to check specific gravity.
METHODS OF PREVENTING OVER-DISCHARGE
The following precautions must be taken to prevent over-discharging
a battery.

The battery surface (particularly its top) should always be kept
clean and dry.

The terminal connections should be clean and tight.

At every routine maintenance, check the electrolyte level.
This also applies to batteries designated as “low maintenance”
and “maintenance-free ”.

When the vehicle is not going to be used over a long period of
time, disconnect the negative battery terminal.

Check the charge condition of the battery.
Periodically check the specific gravity of the electrolyte. Keep a
close check on charge condition to prevent over-discharge.
CHECKING ELECTROLYTE LEVEL
WARNING:
Do not allow battery fluid to come in contact with skin, eyes, fabrics, or painted surfaces. After touch-
ing a battery, do not touch or rub your eyes until you have thoroughly washed your hands. If acid con-
tacts eyes, skin or clothing, immediately flush with water for 15 minutes and seek medical attention.
MEL040F
MEL041F
MEL042F

BATTERYSC-5
C
DE
F
G H
I
J
L
M A
B
SC
Revision: November 2009 2006 QX56

Remove the cell plug using a suitable tool.

Add distilled water up to the MAX level.
Sulfation
A battery will be completely discharged if it is left unattended
for a long time and the specific gravity will become less than
1.100. This may result in sulfation on the cell plates.
To determine if a battery has been sulfated, note its voltage and
current when charging it. As shown in the figure, less current
and higher voltage are observed in the initial stage of charging
sulfated batteries.
A sulfated battery may sometimes be brought back into service
by means of a long, slow charge, 12 hours or more, followed by
a battery capacity test.
SPECIFIC GRAVITY CHECK
1. Read hydrometer and thermometer indications at eye level.
2. Use the following chart to correct your hydrometer reading
according to electrolyte temperature.
Hydrometer Temperature Correction
MEL043F
PKIA2353E
MEL042FA
Battery electrolyte temperature °C ( °F) Add to specific gravity reading
71 (160) 0.032
66 (150) 0.028
60 (140) 0.024
54 (130) 0.020
49 (120) 0.016
43 (110) 0.012
38 (100) 0.008
32 (90) 0.004
27 (80) 0
21 (70) −0.004
16 (60) −0.008
10 (50) −0.012
4 (40) −0.016
− 1 (30) −0.020
− 7 (20) −0.024