2006 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2006 Factory Service Manual SE-110
THIRD SEAT
Revision: November 20092006 QX56
1. RH 3rd seat assembly2. Seatback assembly 3. Seatback pad
4. Seatback trim cover 5. Seat cushion assembly 6. Seat cushion trim cover
7. Seat cushio

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INFINITI QX56 2006 Factory Service Manual SRS-1
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
H RESTRAINTS
CONTENTS
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SECTION
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Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................

SRS-1
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
H RESTRAINTS
CONTENTS
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SECTION
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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

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INFINITI QX56 2006 Factory Service Manual SRS-2Revision: November 20092006 QX56
DIAGNOSIS SENSOR UNIT ..................................
... 58
Removal and Installation ..................................... ... 58
REMOVAL ..................

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

PRECAUTIONSSRS-3
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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.

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INFINITI QX56 2006 Factory Service Manual SRS-4
PREPARATION
Revision: November 20092006 QX56
PREPARATIONPFP:00002
Special Service ToolsEHS0016E
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated h

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INFINITI QX56 2006 Factory Service Manual SUPPLEMENTAL RESTRAINT SYSTEM (SRS)SRS-5
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Revision: November 2009 2006 QX56
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)PFP:28556
SRS ConfigurationEHS0016G
The air bag deploys if the

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INFINITI QX56 2006 Factory Service Manual 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

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

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INFINITI QX56 2006 Factory Service Manual 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 s

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