service INFINITI QX56 2007 Factory Service Manual

SEAT BELTS
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Installation is in the reverse order of removal.
• Make sure the seat belt height adjuster is locked in the lowest position during installation.
SECOND ROW SEAT BELT BUCKLE
Removal
1. Remove the rear bucket seat.
2. Remove the screw and seat cushion inner finisher. Refer to SE-89, "
Removal and Installation".
3. Remove the anchor bolt and buckle.
4. Remove the rear bench seat. Refer to SE-89, "
Removal and Installation".
5. Remove the seat cushion finisher.
6. Remove the anchor bolt and buckle.
Installation
Installation is in the reverse order of removal.
SECOND ROW SEAT BELT RETRACTOR - BENCH SEAT
Removal
1. Remove seat belt anchor.
2. Remove seat belt bezel.
3. Remove seat back upholstery and foam. Refer to SE-90, "
Disassembly and Assembly".
4. Remove seat belt retractor cover.
5. Remove bolt and remove seat belt retractor and seat belt assembly.
Installation
Installation is in the reverse order of removal.

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SEAT BELTS
Removal and Installation of Third Row Seat Belt
INFOID:0000000003532845
Third Row Outboard
REMOVAL
1. Remove the D-ring anchor bolt cover and D-ring anchor bolt.
2. Remove the lower anchor bolt cover and lower anchor bolt.
3. Remove the upper and lower luggage side finishers. Refer to EI-39
.
4. Remove the seat belt retractor anchor bolt and retractor and belt assembly.
INSTALLATION
Installation is in the reverse order of removal.
• Seat belt anchor base should be flat to the floor during installation and not on the anti-rotation bead.
WHIA0283E
1. D-ring mounting bracket 2. Seat belt retractor and belt assembly 3. Retractor mounting bracket
4. Seat belt lower anchor 5. Lower anchor bolt cover 6. Seat belt buckles
7. D-ring anchor bolt cover 8. D-ring anchor

SEAT BELTS
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Third Row Center
REMOVAL
1. Remove the rear roof finisher. Refer to EI-39.
2. Lower the rear portion of the headliner.
3. Remove the seat belt retractor anchor bolts and retractor and belt assembly.
INSTALLATION
Installation is in the reverse order of removal.
THIRD ROW SEAT BELT BUCKLE
Removal
1. Place seatback RH/LH in the folded position.
2. Remove luggage floor board assembly and storage box. Refer to EI-39
.
3. Remove seat belt buckle bolt (2) from rear seat hinge (1).
•⇐: Vehicle front
WHIA0284E
Seat belt buckle bolt : 49 N·m (5.0 kg-m, 36 ft-lb)
LHIA0107E

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SEAT BELTS
4. Remove push pin (2) and release elastic ban (3) from seat
frame (1). Repeat for opposite seat.
•⇐: Vehicle front
5. Partially lift seatback upright, then remove seat belt buckle (2)
from between hinge cover (1) and seat cushion side facing (3).
Repeat for LH seat.
•⇐: Vehicle front
Installation
Installation is in the reverse order of removal.
• Raise and lock both seats in the full upright position to check for abnormal noises or binding.
Seat Belt InspectionINFOID:0000000003532846
AFTER A COLLISION
WARNING:
Inspect all seat belt assemblies including retractors and attaching hardware after any collision.
NISSAN recommends that all seat belt assemblies in use during a collision be replaced unless the col-
lision was minor and the belts show no damage and continue to operate properly. Failure to do so
could result in serious personal injury in an accident. Seat belt assemblies not in use during a colli-
sion should also be replaced if either damage or improper operation is noted. Seat belt pre-tensioners
should be replaced even if the seat belts are not in use during a frontal collision in which the air bags
are deployed.
Replace any seat belt retractor and belt assembly (including anchor bolts) if:
• The seat belt was in use at the time of a collision (except for minor collisions and the belts, retractors and
buckles show no damage and continue to operate properly).
• The seat belt was damaged in an accident. (i.e. torn webbing, bent retractor or guide).
• The seat belt attaching point was damaged in an accident. Inspect the seat belt attaching area for damage
or distortion and repair as necessary before installing a new seat belt retractor and belt assembly.
• Anchor bolts are deformed or worn out.
• The seat belt pre-tensioner should be replaced even if the seat belts are not in use during the collision in
which the air bags are deployed.
PRELIMINARY CHECKS
1. Check the seat belt warning lamp/chime for proper operation as follows:
a. Switch ignition ON. The seat belt warning lamp should illuminate. Also, the seat belt warning chime should
sound for about seven seconds.
b. Fasten drivers seat belt. The seat belt warning lamp should go out and the chime (if sounding) should
stop.
2. If the air bag warning lamp is blinking, conduct self-diagnosis using CONSULT-II, and air bag warning
lamp. Refer to SRS-20, "
SRS Operation Check".
3. Check that the seat belt retractor and belt assembly, seat belt anchor and buckle bolts are securely
attached.
LHIA0105E
LHIA0106E

SEAT BELTS
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4. Check the shoulder seat belt guide and shoulder belt height adjuster for front seats. Ensure guide swivels
freely and that belt lays flat and does not bind in guide. Ensure height adjuster operates properly and
holds securely.
5. Check retractor operation:
a. Fully extend the seat belt webbing and check for twists, tears or other damage.
b. Allow the seat belt to retract. Ensure that belt returns smoothly and completely into the retractor. If the
seat belt does not return smoothly, wipe the inside of the loops with a clean paper cloth, because dirt built
up in the loops of the upper anchors can cause the seat belts to retract slowly.
c. Fasten the seat belt. Check the seat belt returns smoothly and completely to the retractor. If the belt does
not return smoothly, the cause may be an accumulation of dust or dirt. Use the “SEAT BELT TAPE SET”
and perform the following steps.
Inspect the front seat belt through-anchor:1. Pull the seat belt out to a length of 500 mm (19.69 in) or more.
2. Use a clip or other device to hold the seat belt at the center pillar belt opening.
3. Pass a thin wire through the through-anchor belt opening. Hold both ends of the wire and pull taut
while moving it up and down several times along the belt opening surface to remove dirt.
4. Any dirt that cannot be removed with the wire can be removed by cleaning the opening with a clean
cloth.
5. Apply tape at the point where the belt contacts the through-anchor belt opening.
NOTE:
Apply the tape so that there is no looseness or wrinkling.
6. Remove the clip holding the seat belt and check that the belt returns smoothly.
7. Repeat steps above as necessary to check the other seat belts.
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.

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SEAT BELTS
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.
If retractor does not operate within specifications, 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

LATCH (LOWER ANCHORS AND TETHER FOR CHILDREN) SYSTEM
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LATCH (LOWER ANCHORS AND TETHER FOR CHILDREN) SYSTEM
Removal and InstallationINFOID:0000000003532847
NOTE:
The LATCH (Lower Anchors and Tether for Children) system is not serviceable.

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TOP TETHER STRAP CHILD RESTRAINT
TOP TETHER STRAP CHILD RESTRAINT
Removal and InstallationINFOID:0000000003532848
1. Remove luggage room rear lower finisher. Refer to EI-39 .
2. Remove bolt and remove tether anchor from the luggage box
bracket.
Installation is in the reverse order of removal.
WHIA0135E

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ELECTRICAL
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CONTENTS
STARTING & CHARGING SYSTEM
SERVICE INFORMATION ............................2
PRECAUTIONS ...................................................2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
2
Precaution for Power Generation Variable Voltage
Control System ..........................................................
2
PREPARATION ...................................................3
Special Service Tool .................................................3
Commercial Service Tool ..........................................3
BATTERY ............................................................4
How to Handle Battery ..............................................4
Trouble Diagnosis with Battery/Starting/Charging
System Tester ...........................................................
6
Removal and Installation ...........................................8
STARTING SYSTEM ..........................................9
System Description ...................................................9
Wiring Diagram - START - .......................................10
Trouble Diagnosis with Battery/Starting/Charging
System Tester .........................................................
10
Removal and Installation .........................................14
CHARGING SYSTEM .......................................15
System Description ..................................................15
Wiring Diagram - CHARGE - ...................................17
Trouble Diagnosis with Battery/Starting/Charging
System Tester .........................................................
17
Removal and Installation .........................................22
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
24
Battery .....................................................................24
Starter ......................................................................24
Generator ................................................................24

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PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003533312
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 performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
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 har-
ness connectors.
Precaution for Power Generation Variable Voltage Control SystemINFOID:0000000003533313
CAUTION:
For this model, the battery current sensor that is installed to the negative battery cable measures the
charging/discharging current of the battery and performs various engine controls. If an electrical com-
ponent is connected directly to the negative battery terminal, the current flowing through that compo-
nent will not be measured by the battery current sensor. This condition may cause a malfunction of
the engine control system and battery discharge may occur. Do not connect an electrical component
or ground wire directly to the battery terminal.