2009 INFINITI QX56 warning

COLLISION DIAGNOSISSR-21
< ON-VEHICLE REPAIR >
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FOR FRONTAL COLLISION: When SRS is not activated in a collision
CAUTION:
Due to varying models and option levels, not all parts listed in the chart below apply to all vehicles.
WORK PROCEDURE
1. Before performing any of the following steps, ensur e that all vehicle body and structural repairs have been
completed.
2. Check the SRS components using the table below: Replace any SRS components showing visible signs of damage. (dents, cracks and deformation, etc.)
3. Perform self-diagnosis using CONSULT-III or air bag warning lamp. Refer to SRC-15, "
Self-Diagnosis
Function (Without CONSULT-III)" for details.
Ensure entire SRS operates properly.
4. After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to
SRC-13, "
SRS Operation Check".
SRS INSPECTION (FOR FRONTAL COLLISION)
Harness and connectors 1. Check connectors for poor connection, damage, and terminals for deformities.
2. Check harness for binding, chafing, cuts, or deformities.
3. If no damage is found, reinstall the harness and connectors.
4. If damaged—REPLACE the damaged harness. Do not attempt to repair, splice or modify any SRS harness.
Instrument panel assembly If the passenger front air bag has deployed: REPLACE the instrument panel assembly. (integrated type)
Part
Inspection
Part Inspection
Driver air bag module If the driver air bag has NOT been activated:
1. Remove driver air bag module. Check harness cover and connectors for damage, terminals for deformities, and harness for binding.
2. Install driver air bag module into the steering wheel to check fit and alignment with the wheel.
3. If no damage is found, reinstall with new fasteners.
4. If damaged—REPLACE. Install driver air bag modules with new fasteners.
Front passenger air bag module
(if equipped) If the front passenger air bag has NOT been activated:
1. Remove front passenger air bag module. Check harness cover and connectors for damage,
terminals for deformities, and harness for binding.
2. Install front passenger air bag module into the instrument panel to check fit with the instrument panel.
3. If no damage is found, reinstall with new fasteners.
4. If damaged—REPLACE. Install front passenger air bag modules with new fasteners.
Crash zone sensor If the front air bags or seat belt pre-tensioners have NOT been activated:
1. Remove the crash zone sensor. Check harness connectors for damage, terminals for defor- mities, and harness for binding.
2. Check for visible signs of damage (dents, cracks, deformation) of the crash zone sensor and bracket.
3. Install the crash zone sensor to check fit.
4. If no damage is found, reinstall with new fasteners.
5. If damaged—REPLACE the crash zone sensor and bracket with new fasteners.
Seat belt pre-tensioner assem-
blies
(All applicable locations: buckle,
retractor, lap outer) If the pre-tensioners have NOT been activated:
1. Remove seat belt pre-tensioners.
Check harness cover and connectors for damage, terminals for deformities, and harness for
binding.
2. Check belts for damage and anchors for loose mounting.
3. Check retractor for smooth operation.
4. Check seat belt adjuster for damage.
5. Check for deformities of the center pillar inner.
6. If the center pillar inner has no damage, REPLACE the seat belt pre-tensioner assembly.
7. If no damage is found, reinstall seat belt pre-tensioner assembly.
8. If damaged—REPLACE. Install the seat belt pre-tensioners with new fasteners.
Revision: December 20092009 QX56

SR-22
< ON-VEHICLE REPAIR >
COLLISION DIAGNOSIS
For Side and Ro llover Collision
INFOID:0000000005867711
FOR SIDE AND ROLLOVER COLLISION: Wh en SRS is activated in a collision
CAUTION:
Due to varying models and option levels, not all part s listed in the chart below apply to all vehicles.
WORK PROCEDURE
1. Before performing any of the following steps, ensure that all vehicle body and structural repairs have been
completed.
2. Replace the following components:
- Front seat back assembly (on the side on which side air bag is activated).
- Door finisher (on the side on which door-mounted curtain air bag is activated).
- Pop-up roll bar assemblies and pop-up roll bar covers.
- Side air bag (satellite) sensor LH/RH (on the side on which side air bag is activated).
- Diagnosis sensor unit.
- Seat belt pre-tensioner assemblies.
3. Check the SRS components and the related parts using the following table. Replace any SRS components and the related parts showing visible signs of damage (dents, cracks,
deformation, etc.).
4. Perform self-diagnosis using CONSULT-III and “AIR BAG” warning lamp. Refer to SRC-13, "
SRS Opera-
tion Check" for details. Make sure entire SRS operates properly.
5. After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to SRC-15, "
Self-Diagnosis Function (Without CONSULT-III)".
SRS INSPECTION (FOR SIDE AND ROLLOVER COLLISION)
Diagnosis sensor unit If none of the SRS components have been activated:
1. Check case for dents, cracks or deformities.
2. Check connectors for damage, and terminals for deformities.
3. If no damage is found, reinstall with new fasteners.
4. If damaged—REPLACE. Install diagnosis sensor unit with new fasteners.
Steering wheel 1. Visually check steering wheel for deformities.
2. Check harness (built into steering wheel) and connectors for damage, and terminals for defor- mities.
3. Install driver air bag module into the steering wheel to check fit and alignment with the wheel.
4. Check steering wheel for excessive free play.
5. If no damage is found, reinstall.
6. If damaged—REPLACE.
Spiral cable If the driver front air bag has not deployed:
1. Visually check spiral cable and combination switch for damage.
2. Check connectors and protective tape for damage.
3. Check steering wheel for noise, binding or heavy operation.
4. If no damage is found, reinstall.
5. If damaged—REPLACE.
Occupant classification system
(Passenger seat) 1. Remove passenger seat assembly.
2. Check control unit case for dents, cracks of deformities.
3. Check connectors and pressure sensor tube for damage, and terminals for deformities.
4. Check seat frame and cushion pan for dents or deformities.
5. If no damage is found, reinstall seat with new fasteners.
6. If damaged — REPLACE seat cushion assembly with new fasteners.
Harness and connectors 1. Check connectors for poor connection, damage, and terminals for deformities.
2. Check harness for binding, chafing, cuts, or deformities.
3. If no damage is found, reinstall the harness and connectors.
4. If damaged—REPLACE the damaged harness. Do not attempt to repair, splice or modify any
SRS harness.
Instrument panel assembly If the passenger front air bag has NOT deployed: 1. Visually check instrument panel for damage.
2. If no damage is found, reinstall the instrument panel assembly.
3. If damaged—REPLACE the instrument panel assembly.
Part
Inspection
Revision: December 20092009 QX56

COLLISION DIAGNOSISSR-23
< ON-VEHICLE REPAIR >
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FOR SIDE AND ROLLOVER COLLISION: When SRS is not activated in a collision
CAUTION:
Due to varying models and option levels, not all parts listed in the chart below apply to all vehicles.
WORK PROCEDURE
1. Before performing any of the following steps, ensur e that all vehicle body and structural repairs have been
completed.
2. Check the SRS components and the related parts using the following table.
- If the front seat back assembly is damaged, t he front seat back assembly must be replaced.
- If the door finisher assembly is damaged, the door finisher assembly and door-mounted curtain air bag
module must be replaced.
3. Perform self-diagnosis using CONSULT-II I and “AIR BAG” warning lamp. Refer to SRC-13, "
SRS Opera-
tion Check" for details. Make sure entire SRS operates properly.
4. After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to
SRC-15, "
Self-Diagnosis Function (Without CONSULT-III)".
SRS INSPECTION (FOR SIDE AND ROLLOVER COLLISION)
Part Inspection
Side curtain air bag module LH If the side curtain air bag LH has deployed: REPLACE the side curtain air bag module LH.
Install with new fasteners.
Side curtain air bag module RH If the side curtain air bag RH has deployed: REPLACE the side curtain air bag module RH.
Install with new fasteners.
Front side air bag module LH If the front side air bag LH has deployed: REPLACE front seatback assembly LH.
Front side air bag module RH If the front side air bag RH has deployed: REPLACE front seatback assembly RH.
Side air bag (satellite) sensor (LH
or RH) If any of the SRS components have deployed:
REPLACE the side air bag (satellite) sensor on the collision side with new fasteners.
Diagnosis sensor unit If any of the SRS components have deployed:
REPLACE the diagnosis sensor unit with new fasteners.
Seat belt pre-tensioner assem-
blies
(All applicable locations: buckle,
retractor, lap outer) If either the driver or passenger seat belt pre-tensioner* has been activated:
REPLACE all seat belt pre-tensioner assemblies with new fasteners.
*: Confirm seat belt pre-tensioner activation using CONSULT-III only.
Center inner pillar 1. Check the center inner pillar on the collision side for damage (dents, cracks, deformation).
2. If damaged—REPAIR the center inner pillar.
Seat (if equipped with front side
air bag) If either the front LH or front RH side air bag modules has been deployed:
REPLACE front seatback assembly on the deployed side.
Trim/headlining 1. Check for visible signs of damage (dents, cracks, deformation) of the interior trim on the col-
lision side.
2. If damaged—REPLACE the damaged trim parts.
Door-mounted curtain air bag
module LH If the door-mounted curtain air bag module LH has been deployed:
REPLACE the door finisher LH and door-mounted curtain air bag module.
Install with new fasteners.
Door-mounted curtain air bag
module RH If the door-mounted curtain air bag module RH has been deployed:
REPLACE the door finisher RH and door-mounted curtain air bag module.
Install with new fasteners.
Pop-up roll bar assemblies If the pop-up roll bar has deployed: REPLACE pop-up roll bar assemblies and pop-up roll bar covers.
Install with new fasteners.
Revision: December 20092009 QX56

SRC-1
RESTRAINTS
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SECTION SRC
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CONTENTS
SRS AIRBAG CONTROL SYSTEM
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORK FLOW .... .....3
Work Flow ........................................................... ......3
INTERMITTENTS INCIDENT ..............................5
Inspection Procedure ......................................... ......5
Trouble Diagnosis with CONSULT-III .......................5
FUNCTION DIAGNOSIS ...............................6
SRS AIR BAG SYSTEM ................................. .....6
SRS Configuration .............................................. ......6
SRS Component Parts Location ...............................7
Driver Air Bag Module ...............................................7
Front Passenger Air Bag Module ..............................8
Front Side Air Bag ............................................... ......8
Side Curtain Air Bag ..................................................8
Front Seat Belt Pre-tensioner with Load Limiter .......8
Direct-connect SRS Component Connectors ............9
OCCUPANT CLASSIFICATION SYSTEM .........10
System Diagram .................................................. ....10
Occupant Classification System (OCS) ..................10
PASSENGER SEAT BELT WARNING SYS-
TEM ....................................................................
12
System Diagram .................................................. ....12
System Description .................................................12
Component Parts Location ......................................12
ON BOARD DIAGNOSTIC (OBD) SYSTEM ......13
Trouble Diagnosis Introduction ........................... ....13
SRS Operation Check .............................................13
Trouble Diagnosis without CONSULT-III ................15
CONSULT-III Function (AIR BAG) ..........................15
Self-Diagnosis Function (Without CONSULT-III) ....15
COMPONENT DIAGNOSIS .........................17
B1049 – B1052, B1054 – B1057 DRIVER AIR-
BAG MODULE ...................................................
17
Description ........................................................... ....17
DTC Logic ................................................................17
Diagnosis Procedure (Component Diagnosis) ........18
B1065 – B1068, B1070 – B1073 PASSEN-
GER AIRBAG MODULE ...................................
20
Description ...............................................................20
DTC Logic ................................................................20
Diagnosis Procedure (Component Diagnosis) ........21
B1134 – B1137 SIDE AIRBAG MODULE LH ...23
Description ...............................................................23
DTC Logic ................................................................23
Diagnosis Procedure (Component Diagnosis) ........24
B1129 – B1132 SIDE AIRBAG MODULE RH ...26
Description ...............................................................26
DTC Logic ................................................................26
Diagnosis Procedure (Component Diagnosis) ........27
B1198 – B1201 SIDE CURTAIN AIR BAG
MODULE LH (FRONT) ......................................
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Description ...............................................................29
DTC Logic ................................................................29
Diagnosis Procedure (Component Diagnosis) ........30
B1193 – B1196 SIDE CURTAIN AIR BAG
MODULE RH (FRONT) .....................................
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Description ...............................................................32
DTC Logic ................................................................32
Diagnosis Procedure (Component Diagnosis) ........33
B1150 – B1153 SIDE CURTAIN AIR BAG
MODULE LH (REAR) ........................................
35
Description ...............................................................35
DTC Logic ................................................................35
Diagnosis Procedure (Component Diagnosis) ........36
B1145 – B1148 SIDE CURTAIN AIR BAG
MODULE RH (REAR) .......................................
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Description ...............................................................38
DTC Logic ................................................................38
Revision: December 20092009 QX56

SRC-2
Diagnosis Procedure (Component Diagnosis) ........39
B1086 – B1089 SEAT BELT PRE-TENSION-
ER LH .................................................................
41
Description ........................................................... ...41
DTC Logic ...............................................................41
Diagnosis Procedure (Component Diagnosis) ........42
B1081 – B1084 SEAT BELT PRE-TENSION-
ER RH ................................................................
44
Description ..............................................................44
DTC Logic ...............................................................44
Diagnosis Procedure (Component Diagnosis) ........45
B1182 - B1185 SEAT BELT BUCKLE PRE-
TENSIONER LH .................................................
47
Description ........................................................... ...47
DTC Logic ...............................................................47
Diagnosis Procedure (Component Diagnosis) ........48
B1177 - B1180 SEAT BELT BUCKLE PRE-
TENSIONER RH ................................................
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Description ........................................................... ...50
DTC Logic ...............................................................50
Diagnosis Procedure (Component Diagnosis) ........51
B1033 – B1035 CRASH ZONE SENSOR .........53
Description ........................................................... ...53
DTC Logic ...............................................................53
Diagnosis Procedure (Component Diagnosis) ........54
B1118 – B1120 SATELLITE SENSOR LH ........56
Description ........................................................... ...56
DTC Logic ...............................................................56
Diagnosis Procedure (Component Diagnosis) ........57
B1113 – B1115 SATELLITE SENSOR RH .......59
Description ........................................................... ...59
DTC Logic ...............................................................59
Diagnosis Procedure (Component Diagnosis) ........60
B1XXX AIR BAG DIAGNOSIS SENSOR UNIT ...62
Description ........................................................... ...62
DTC Logic ...............................................................62
Diagnosis Procedure (Component Diagnosis) ........63
B1023 PASSENGER AIR BAG OFF INDICA-
TOR ....................................................................
64
Description ........................................................... ...64
DTC Logic ...............................................................64
Diagnosis Procedure (Component Diagnosis) ........65
B1017 – B1022 OCCUPANT CLASSIFICA-
TION SYSTEM ................................................ ...
67
Description ........................................................... ...67
DTC Logic ...............................................................67
Diagnosis Procedure (Component Diagnosis) ........68
B1209 – B1211 COLLISION DETECTION ........71
Description ........................................................... ...71
DTC Logic ...............................................................71
Diagnosis Procedure (Component Diagnosis) ........71
ECU DIAGNOSIS .......................................72
DIAGNOSIS SENSOR UNIT .............................72
Wiring Diagram .................................................... ...72
Trouble Diagnosis with CONSULT-III .....................81
Trouble Diagnosis without CONSULT-III ................85
SYMPTOM DIAGNOSIS ............................90
SRS AIR BAG SYSTEM ................................. ...90
"AIR BAG" Warning Lamp Does Not Turn Off ..... ...90
"AIR BAG" Warning Lamp Does Not Turn On ........90
PASSENGER SEAT BELT WARNING SYS-
TEM ....................................................................
92
Seat Belt Warning System Does Not Function .... ...92
PRECAUTION ............................................93
PRECAUTIONS .............................................. ...93
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ...
93
Precaution for SRS "AIR BAG" and "SEAT BELT
PRE-TENSIONER" Service ................................. ...
93
Occupant Classification System Precaution ...........93
Revision: December 20092009 QX56

SRC-4
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORK FLOW
>> GO TO 3
3.TECHNICAL SERVICE BULLETINS
Check for technical service bulletins.
>> GO TO 4
4.USER MODE
Perform self-diagnosis using the "AIR BAG" warning lamp in User mode. Refer to SRC-13, "
SRS Operation
Check".
>> GO TO 5
5.SELF-DIAGNOSIS
Perform SELF-DIAGNOSIS. Refer to SRC-5, "
Trouble Diagnosis with CONSULT-III" (w/CONSULT-III) or
SRC-15, "
Self-Diagnosis Function (Without CONSULT-III)" (w/o CONSULT- III).
>> GO TO 6
6.REPLACE PART
Replace the malfunctioning part.
>> GO TO 7
7.FINAL CHECK
Check SRS using Diagnosis mode and User mode.
Does Diagnosis mode and User mode indicate SRS normal?
YES >> Inspection end.
NO >> GO TO 5
Revision: December 20092009 QX56

SRS AIR BAG SYSTEMSRC-7
< FUNCTION DIAGNOSIS >
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SRS Component Parts LocationINFOID:0000000003775172
Driver Air Bag ModuleINFOID:0000000003775173
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.
1. Side curtain air bag modules 2. Front RH side air bag module 3. Belt tension sensor
4. RH side air bag (satellite) sensor 5. Front RH seat belt pre-tension- er6. Seat belt buckle pre-tensioner assembly
RH
7. Occupant classification system sen- sor 8. Occupant classification system
control unit 9. Front passenger air bag off indicator
10. Front passenger air bag module 11. Crash zone sensor 12. Air bag warning lamp
13. Spiral cable 14. Driver air bag module15. LH side air bag (satellite) sensor
16. Front LH seat belt pre-tensioner 17. Air bag diagnosis sensor unit 18. Front LH side air bag module
WHIA0216E
WHIA0325E
Revision: December 20092009 QX56

SRC-12
< FUNCTION DIAGNOSIS >
PASSENGER SEAT BELT WARNING SYSTEM
PASSENGER SEAT BELT WARNING SYSTEM
System DiagramINFOID:0000000003775181
System DescriptionINFOID:0000000003775182
The passenger seat belt warning system will remind the driver if the
driver or front passenger seat belt should be buckled by turning on
the seat belt warning light (1). The system works in conjunction with
the occupant classification system. Refer to SRC-10, "
Occupant
Classification System (OCS)".
Passenger Seat Belt Warning System Operation
Component Parts LocationINFOID:0000000003775183
Refer to SRC-7, "SRS Component Parts Location".
ALHIA0028GB
AWHIA0032ZZ
Driver seat status
(Ignition switch ON) Passenger seat status Seat belt buckle switch
LH status Seat belt buckle switch
RH statusSeat belt warning lamp
Seat occupied Seat occupied
Buckled Buckled
Off
Unbuckled On
Seat unoccupied —Off
— Unbuckled On
Revision: December 20092009 QX56