2007 INFINITI QX56 service

SE-96
< SERVICE INFORMATION >
THIRD SEAT
DISASSEMBLY AND ASSEMBLY
Third seat LH
LIIA2322E
1. LH 3rd seat assembly 2. Seatback assembly 3. Seatback trim cover
4. Seat cushion assembly 5. Seat cushion pad 6. Seat cushion trim cover
7. Flex mat springs 8. Flex mat 9. Front link covers
10. RH hinge cover 11. Seat cushion frame 12. LH hinge cover
13. Seatback frame assembly 14. Seatback cable assembly 15. Release handle bezel

THIRD SEAT
SE-97
< SERVICE INFORMATION >
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RH Side SeatINFOID:0000000003533215
REMOVAL
1. Remove the storage bin. Refer to EI-39 .
2. Remove the lower base trim covers.
3. Remove (A) front link nuts and (B) RH hinge front bolt.
4. Remove push pin (2) and release elastic ban (3) from seat
frame (1).
•⇐: Vehicle front
5. Partially lift seatback upright, then remove seat belt buckle (2)
from between hinge cover (1) and seat cushion side facing (3).
•⇐: Vehicle front
6. Retract the seat into the cargo floor position.
7. Remove the rear bolts from the seat assembly.
8. Remove the seat assembly.
INSTALLATION
Installation is in the reverse order of removal.
DISASSEMBLY AND ASSEMBLY
16. Seatback board 17. Seatback pad 18. Headrest holder, locking
19. Headrest holder, free 20. Headrest
Front link nuts : 45 N·m (4.6 Kg-m, 33 ft-lb)
RH hinge front bolt : 45 N·m (4.6 Kg-m, 33 ft-lb)
LIIA2326E
LHIA0105E
Seat hinge rear bolt : 45 N·m (4.6 Kg-m, 33 ft-lb)
LHIA0106E
LIIA2327E

SE-98
< SERVICE INFORMATION >
THIRD SEAT
Third seat RH
LIIA2323E
1. RH 3rd seat assembly 2. Seatback assembly 3. Seatback pad
4. Seatback trim cover 5. Seat cushion assembly 6. Seat cushion trim cover
7. Seat cushion pad 8. Flex mat springs 9. Flex mat
10. Front link covers 11. Seat cushion frame 12. RH hinge cover
13. LH hinge cover 14. Seatback frame assembly 15. Seatback board
16. Seatback cable assembly 17. Release handle bezel 18. Headrest holder, locking
19. Headrest holder, free 20. Headrest

SRS-1
RESTRAINTS
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SECTION SRS
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SRS
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CONTENTS
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SERVICE INFORMATION ............................2
PRECAUTIONS ...................................................2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
2
Precaution for SRS "AIR BAG" and "SEAT BELT
PRE-TENSIONER" Service ......................................
2
Occupant Classification System Precaution .............2
PREPARATION ...................................................3
Special Service Tool .................................................3
SUPPLEMENTAL RESTRAINT SYSTEM
(SRS) ...................................................................
4
SRS Configuration ....................................................4
Driver Air Bag Module ...............................................5
Front Passenger Air Bag Module ..............................5
Front Side Air Bag .....................................................5
Side Curtain Air Bag ..................................................5
Front Seat Belt Pre-tensioner with Load Limiter .......6
Occupant Classification System (OCS) ....................6
Direct-connect SRS Component Connectors ............6
TROUBLE DIAGNOSIS ......................................8
Trouble Diagnosis Introduction .................................8
SRS Component Parts Location .............................10
Schematic ...............................................................11
Wiring Diagram - SRS - ...........................................12
CONSULT-II Function (AIR BAG) ...........................17
CONSULT-II Function .............................................18
Self-Diagnosis Function (Without CONSULT-II) .....19
SRS Operation Check .............................................20
Trouble Diagnosis with CONSULT-II ......................21
Trouble Diagnosis without CONSULT-II .................28
Trouble Diagnosis: "AIR BAG" Warning Lamp
Does Not Turn Off ...................................................
32
Trouble Diagnosis: "AIR BAG" Warning Lamp
Does Not Turn On ...................................................
33
DRIVER AIR BAG MODULE ............................35
Removal and Installation .........................................35
SPIRAL CABLE ................................................37
Removal and Installation .........................................37
FRONT PASSENGER AIR BAG MODULE ......39
Removal and Installation .........................................39
SIDE CURTAIN AIR BAG MODULE ................42
Removal and Installation .........................................42
CRASH ZONE SENSOR ...................................44
Removal and Installation .........................................44
SIDE AIR BAG (SATELLITE) SENSOR ...........45
Removal and Installation .........................................45
FRONT SEAT BELT PRE-TENSIONER ...........46
Removal and Installation .........................................46
DIAGNOSIS SENSOR UNIT .............................47
Removal and Installation .........................................47
OCCUPANT CLASSIFICATION SYSTEM
CONTROL UNIT ................................................
48
Removal and Installation .........................................48
COLLISION DIAGNOSIS ..................................49
For Frontal Collision ................................................49
For Side and Rollover Collision ...............................50

SRS-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003532849
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 SRS "AIR BAG" and "SEAT BELT PRE-TENSIONER" Service
INFOID:0000000003532850
• Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bags and seat belt
pre-tensioners to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes
have passed.
• The air diagnosis sensor unit must always be installed with the arrow mark “⇐” pointing toward the front of
the vehicle for proper operation. Also check air bag diagnosis sensor unit for cracks, deformities or rust
before installation and replace as required.
• The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or column after removal of steering gear.
• Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad side
facing upward and seat mounted front side air bag module standing with the stud bolt side facing down.
• Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
• After air bag inflates, the front instrument panel assembly should be replaced if damaged.
Occupant Classification System PrecautionINFOID:0000000003532851
Replace control unit and passenger front seat cushion as an assembly.

PREPARATION
SRS-3
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SRS
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PREPARATION
Special Service ToolINFOID:0000000003532852
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool nameDescription
—
(J-42057)
Air bag lock master key setRemoving and installing air bag lock
LRS210

SRS-4
< SERVICE INFORMATION >
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SRS ConfigurationINFOID:0000000003532853
The air bag deploys if the air bag diagnosis sensor unit is activated while the ignition switch is in the ON or
START position.
The collision modes for which supplemental restraint systems are activated are different among the SRS sys-
tems. For example, the driver air bag module, front passenger air bag module, front seat belt pre-tensioners
and seat belt buckle pre-tensioner assemblies are activated in a frontal collision but not in a side collision.
SRS configurations for some collision modes are as follows:
WHIA0215E
SRS configuration Frontal collision Left side collisionRight side colli-
sionRollover
Driver air bag module x — — —
Front passenger air bag module x — — —
Front LH seat belt pre-tensioner x — — x
Front LH seat belt buckle pre-tensioner assembly x — — x
Front RH seat belt pre-tensioner x — — x
Front RH seat belt buckle pre-tensioner assembly x — — x
Front LH side air bag module — x — —
Front RH side air bag module — — x —
LH side curtain air bag module — x — x
RH side curtain air bag module — — x x

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SRS-5
< SERVICE INFORMATION >
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Driver Air Bag ModuleINFOID:0000000003532854
The driver air bag module is dual stage and located in the steering
wheel assembly. It operates with the SRS system in a frontal colli-
sion exceeding a specified level.
Front Passenger Air Bag ModuleINFOID:0000000003532855
The front passenger air bag module is located behind the instrument
panel assembly. It operates with the SRS system in a frontal colli-
sion exceeding a specified level. Refer to SRS-6, "
Occupant Classi-
fication System (OCS)" for more information.
Front Side Air BagINFOID:0000000003532856
Front side air bag modules are built into the front seatback assem-
blies. Vehicles with side air bags are equipped with labels as shown.
Side Curtain Air BagINFOID:0000000003532857
Side curtain air bag modules are located above the vehicle headlining.
Vehicles with side curtain air bags are equipped with labels as
shown.
WHIA0325E
WHIA0332E
WHIA0327E
WHIA0041E