2006 INFINITI QX56 belt

SE-102
SECOND SEAT
Revision: November 20092006 QX56
7. LH headrest guide free8. Seatback board 9. Seat bracket cover
10. Armrest pivot bracket cover 11. Seatback frame 12. Seat cushion frame
13. Latch assembly 14. Lower rear pivot bracket support 15. Outer hinge cover
16. Center seat base assembly 17. Link and pivot bracket apron 18. Seat cushion pad
19. Seat cushion trim cover 20. Cushion stop bumper 21. Inner lever cover
22. Seat hinge assembly 23. Seat lever assembly 24 Outer lever cover
25. Seat lock cover 26 Armrest cover 27 Armrest bracket
28 Armrest pad 29 Cup holder 30 Seatback trim cover
31. Seat belt retractor and belt assembly A. Refer to SB-6, "
Removal and Installation of Second Row Seat Belt"

THIRD SEATSE-105
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THIRD SEATPFP:88000
LH Side SeatEIS007WZ
REMOVAL
1. Remove the storage bin. Refer to EI-40, "LUGGAGE FLOOR TRIM" .
2. Remove the lower base trim covers.
3. Remove front link nuts and the LH 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 (A) seat hinge rear bolt and (B) seat belt buckle bolt from the seat assembly.
8. Remove the seat assembly.
INSTALLATION
Installation is in the reverse order of removal. Front link nuts : 45 N·m (4.6 Kg-m, 33 ft-lb)
LH hinge front bolt : 45 N·m (4.6 Kg-m, 33 ft-lb)
LIIA2324E
LIIA2370E
LIIA2371E
Seat hinge rear bolt : 45 N·m (4.6 Kg-m, 33 ft-lb)
Seat belt buckle bolt : 50 N·m (5.1 Kg-m, 37 ft-lb)
LIIA2325E

THIRD SEATSE-107
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RH Side SeatEIS007X0
REMOVAL
1. Remove the storage bin. Refer to EI-40, "LUGGAGE FLOOR TRIM" .
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.
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
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

SRS-1
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
H RESTRAINTS
CONTENTS
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SECTION
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SRS
Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions for SRS “AIR BAG” and “SEAT BELT
PRE-TENSIONER” Service ................................ ..... 3
Occupant Classification System Precaution ....... ..... 3
PREPARATION ...................................................... ..... 4
Special Service Tools .......................................... ..... 4
Commercial Service Tools ................................... ..... 4
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) .. ..... 5
SRS Configuration .............................................. ..... 5
Front Seat Belt Pre-tensioner with Load Limiter . ..... 6
Front Side Air Bag .................................................... 6
Side Curtain Air Bag ............................................ ..... 6
Occupant Classification System (OCS) .............. ..... 6
Direct-connect SRS Component Connectors ...... ..... 7
TROUBLE DIAGNOSIS ......................................... ..... 8
Trouble Diagnosis Introduction ............................ ..... 8
DIAGNOSIS FUNCTION .................................. ..... 8
HOW TO PERFORM TROUBLE DIAGNOSES
FOR QUICK AND ACCURATE REPAIR .......... ..... 8
WORK FLOW ........................................................ 9
SRS Components Parts Location ........................ ... 10
Schematic ........................................................... .... 11
Wiring Diagram— SRS — ................................... ... 12
CONSULT-II Function (AIR BAG) ........................ ... 18
CONSULT-II Function ......................................... ... 18
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITH CONSULT-II ........................................... ... 18
HOW TO ERASE SELF-DIAGNOSIS RESULTS ... 19
Self-Diagnosis Function (Without CONSULT-II) .. ... 19
HOW TO CHANGE SELF-DIAGNOSIS MODE ... 20
HOW TO ERASE SELF-DIAGNOSIS RESULTS ... 20
SRS Operation Check ......................................... ... 20
DIAGNOSTIC PROCEDURE 1 ........................ ... 20
Trouble Diagnosis With CONSULT-II .................. ... 22
DIAGNOSTIC PROCEDURE 2 ........................ ... 22
DIAGNOSTIC PROCEDURE 3 ........................ ... 28DIAGNOSTIC PROCEDURE 4 (CONTINUED
FROM DIAGNOSTIC PROCEDURE 2) ...........
... 31
DIAGNOSTIC PROCEDURE 5 ........................ ... 31
Trouble Diagnosis Without CONSULT-II .............. ... 38
DIAGNOSTIC PROCEDURE 6 ........................ ... 38
WARNING LAMP FLASH CODE CHART ........ ... 39
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn Off ......................................................... ... 44
DIAGNOSTIC PROCEDURE 6 ........................ ... 44
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn On ......................................................... ... 45
DIAGNOSTIC PROCEDURE 7 ........................ ... 45
DRIVER AIR BAG MODULE ................................. ... 46
Removal and Installation ..................................... ... 46
REMOVAL ........................................................ ... 46
INSTALLATION ................................................ ... 47
SPIRAL CABLE ..................................................... ... 48
Removal and Installation ..................................... ... 48
REMOVAL ........................................................ ... 48
INSTALLATION ................................................ ... 49
FRONT PASSENGER AIR BAG MODULE ........... ... 50
Removal and Installation ..................................... ... 50
REMOVAL ........................................................ ... 50
INSTALLATION ................................................ ... 50
WIRING HARNESS MODIFICATION ............... ... 51
SIDE CURTAIN AIR BAG MODULE ..................... ... 53
Removal and Installation ..................................... ... 53
REMOVAL ........................................................ ... 53
INSTALLATION ................................................ ... 54
CRASH ZONE SENSOR ........................................ ... 55
Removal and Installation ..................................... ... 55
REMOVAL ........................................................ ... 55
INSTALLATION ................................................ ... 55
SIDE AIR BAG (SATELLITE) SENSOR ................ ... 56
Removal and Installation ..................................... ... 56
REMOVAL ........................................................ ... 56
INSTALLATION ................................................ ... 56
FRONT SEAT BELT PRE-TENSIONER ................ ... 57
Removal and Installation ..................................... ... 57

PRECAUTIONSSRS-3
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SRS
Revision: November 2009 2006 QX56
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EHS0016A
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.
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” ServiceEHS0016B

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 PrecautionEHS0016C
Replace control unit and passenger front seat cushion as an assembly.

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)SRS-5
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)PFP:28556
SRS ConfigurationEHS0016G
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 configurationFrontal collision Left side collision Right side colli-
sion Rollover
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 front curtain air bag module —x— x
LH side rear curtain air bag module —x— x
RH side front curtain air bag module ——xx
RH side rear curtain air bag module ——xx

SRS-6
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Revision: November 20092006 QX56
Front Seat Belt Pre-tensioner with Load LimiterEHS0016H
The seat belt pre-tensioner system with load limiter is installed for
both the driver's seat and the front passenger's seat. It operates
simultaneously with the SRS air bag system in the event of a frontal
collision with an impact exceeding a specified level.
When the frontal collision with an impact exceeding a specified level
occurs, seat belt slack resulting from clothing or other factors is
immediately taken up by the pre-tensioner. Vehicle passengers are
securely restrained.
When passengers in a vehicle are thrown forward in a collision and
the restraining force of the seat belt exceeds a specified level, the
load limiter permits the specified extension of the seat belt by the
twisting of the ELR shaft, and a relaxation of the chest-area seat belt
web tension while maintaining force.
Front Side Air BagEHS0016I
Front side air bag modules are built into the front seatback assemblies.
Vehicles with side air bags are equipped with labels as shown.
Side Curtain Air BagEHS0016J
Side curtain air bag modules are located above the vehicle headlining.
Vehicles with side curtain air bags are equipped with labels as
shown.
Occupant Classification System (OCS) EHS001MY
The occupant classification system (OCS) identifies different size occupants, out of position occupants, and
detects if child seat is present in the front passenger seat. The OCS receives inputs from the occupant classi-
fication sensor (located inside the passenger seat cushion assembly) and belt tension sensor (part of the pas-
senger front seat belt assembly and located at the belt anchor location). Depending on classification of the
passenger, the OCS sends a signal to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit
uses this signal and the seat belt buckle switch RH signal to determine deployment or non deployment of the
passenger front air bag in the event of a collision. Depending on the signals received, the air bag diagnosis
sensor unit can disable the passenger front air bag completely.
NOTE:
In case of customer concern, CONSULT-II can be used to confirm the passenger air bag status (readiness).
SRS444
WHIA0008E
WHIA0041E

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)SRS-7
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Revision: November 2009 2006 QX56
Passenger Air Bag Status Conditions
NOTE:
Passenger does not meet Occupant Classification System specifications for passenger air bag activation.
Direct-connect SRS Component ConnectorsEHS0016L
The following SRS components use direct-connect style harness connectors.

Driver air bag module

Front passenger air bag module

LH side front curtain air bag module

LH side rear curtain air bag module

RH side front curtain air bag module

RH side rear curtain air bag module

Front LH seat belt pre-tensioner

Front RH seat belt pre-tensioner

Seat belt buckle pre-tensioner assembly LH

Seat belt buckle pre-tensioner assembly RH
Always pull up to release black locking tab prior to removing connector from SRS component.
Always push down to lock black locking tab after installing connector
to SRS component. When locked, the black locking tab is level with
the connector housing.
Front Passenger Seat (Condition) PASS AIR BAG OFF Indicator
(Status) Passenger Air Bag Status
(Readiness) CONSULT-II Display
Seat occupied OFF Active (enabled) ON
Seat occupied
NOTEON Deactivated (disabled) OFF
Seat empty OFF Deactivated (disabled) OFF
WHIA0187E
WHIA0103E