2009 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2009 Factory Service Manual SR-24
< ON-VEHICLE REPAIR >
COLLISION DIAGNOSIS
PartInspection
Side curtain air bag module LH If the side curtain air bag LH has NOT deployed: 1. Check for visible signs of damage (dents, tears, defor

SR-24
< ON-VEHICLE REPAIR >
COLLISION DIAGNOSIS
PartInspection
Side curtain air bag module LH If the side curtain air bag LH has NOT deployed: 1. Check for visible signs of damage (dents, tears, deformation) of the center pillar on the colli-sion side.
2. If damaged—Remove the side curtain air bag module LH.
3. Check for visible signs of damaged (tears etc.) of the side curtain air bag module LH.
4. Check harness and connectors for damage, and terminals for deformities.
5. If no damage is found, reinstall the side curtain air bag module LH with new fasteners.
6. If damaged—REPLACE the side curtain air bag module LH with new fasteners.
Side curtain air bag module RH If the side curtain air bag RH has NOT deployed: 1. Check for visible signs of damage (dents, tears, deformation) of the center pillar on the colli-
sion side.
2. If damaged—Remove the side curtain air bag module RH.
3. Check for visible signs of damaged (tears etc.) of the side curtain air bag module RH.
4. Check harness and connectors for damage, and terminals for deformities.
5. If no damage is found, reinstall the side curtain air bag module RH with new fasteners.
6. If damaged—REPLACE the side curtain air bag module RH with new fasteners.
Front side air bag module LH If the front LH side air bag has NOT deployed: 1. Check for visible signs of damage (dents, tears, deformation) of the seat back on the collision side.
2. Check harness and connectors for damage, and terminals for deformities.
3. If damaged—REPLACE the front seatback assembly LH.
Front side air bag module RH If the front side air bag RH has NOT deployed: 1. Check for visible signs of damage (dents, tears, deformation) of the seat back on the collision side.
2. Check harness and connectors for damage, and terminals for deformities.
3. If damaged—REPLACE the front seatback assembly RH.
Side air bag (satellite) sensor (LH
or RH) If none of the SRS components have been activated:
1. Remove the side air bag (satellite) sensor (LH or RH) on the collision side. Check harness
connectors for damage, te rminals for deformities, and harness for binding.
2. Check for visible signs of damage (dents, cracks, deformation) of the side air bag (satellite) sensor (LH or RH).
3. Install the side air bag (satellite) sensor (LH or RH) to check fit.
4. If no damage is found, reinstall the side sir bag (satellite) sensor (LH or RH) with new fasten- ers.
5. If damaged—REPLACE the side air bag (satellite) sensor (LH or RH) with new fasteners.
Diagnosis sensor unit If none of the SRS components have been activated:
1. Check case and bracket for dents, cracks or deformities.
2. Check connectors for damage, and terminals for deformities.
3. If no damage is found, reinstall the diagnosis sensor unit with new fasteners.
4. If damaged—REPLACE the diagnosis sensor unit 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.
Seat (with front side air bag) If the front LH or front RH side air bag modules have NOT deployed: 1. Visually check the seat on the collision side.
2. Remove the seat on the collision side and check the following for damage and deformities.
- Harness, connectors and terminals
- Frame and recliner (for front and rear seat), and also adjuster and slides (for front seat)
3. If no damage is found, reinstall the seat.
4. If damaged—REPLACE the damaged seat parts using new fasteners. If the front seat back is damaged, the front seat back assembly must be replaced.
Revision: December 20092009 QX56

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INFINITI QX56 2009 Factory Service Manual COLLISION DIAGNOSISSR-25
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Center inner pillar 1. Check the center inner pillar on the collision side for damage (dents, cracks, deformation,
etc.)

COLLISION DIAGNOSISSR-25
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Center inner pillar 1. Check the center inner pillar on the collision side for damage (dents, cracks, deformation,
etc.).
2. If damaged - REPAIR the center inner pillar.
Trim/headlining 1. Check for visible signs of damage (dents, cracks, deformation, etc.) of the interior tim on the
collision side.
2. If damaged - REPLACE the damaged trim parts.
Door-mounted curtain air bag
module LH If the door-mounted curtain air bag LH has NOT deployed:
1. Check for visible signs of damage (dents tears, deformation, etc.) of the door finisher on the
collision side.
2. If damaged - REPLACE the door finisher LH with new fasteners.
3. Check for visible signs of damaged (dears etc.) of the door-mounted curtain air bag module
LH.
4. Check harness and connectors for damage, and terminals for deformities.
5. If no damage is found, reinstall door finisher.
CAUTION:
When removing door mounted curtain air ba g module from door finisher, never reuse
door finisher.
6. If damaged - REPLACE the door finisher LH and door-mounted curtain air bag module LH with new fasteners.
Door-mounted curtain air bag
module RH If the door-mounted curtain air bag RH has NOT deployed:
1. Check for visible signs of damage (dents tears, deformation, etc.) of the door finisher on the
collision side.
2. If damaged - REPLACE the door finisher RH with new fasteners.
3. Check for visible signs of damaged (tears etc.) of the door-mounted curtain air bag module
RH.
4. Check harness and connectors for damage, and terminals for deformities.
5. If no damage is found, reinstall door finisher.
CAUTION:
When removing door mounted curtain air ba g module from door finisher, never reuse
door finisher.
6. If damaged - REPLACE the door finisher RH and door-mounted curtain air bag module RH with new fasteners.
Pop-up roll bar If the pop-up roll bar NOT deployed:
1. Check for visible signs of damage (dents tears, deformation, etc.) of the pop-up roll bar.
2. If damaged - REPLACE the pop-up roll bar with new fasteners.
3. Check harness and connectors for damage, and terminals for deformities.
4. If no damage is found, reinstall the pop-up roll bar with new fasteners.
5. Check for visible signs of damage (dents, cracks, deformation, etc.) of the seatback support
brace assembly.
6. If damaged - REPAIR the seatback support brace assembly.
Part
Inspection
Revision: December 20092009 QX56

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INFINITI QX56 2009 Factory Service Manual 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
Wo

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) ......................................
29
Description ...............................................................29
DTC Logic ................................................................29
Diagnosis Procedure (Component Diagnosis) ........30
B1193 – B1196 SIDE CURTAIN AIR BAG
MODULE RH (FRONT) .....................................
32
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) .......................................
38
Description ...............................................................38
DTC Logic ................................................................38
Revision: December 20092009 QX56

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INFINITI QX56 2009 Factory Service Manual SRC-2
Diagnosis Procedure (Component Diagnosis) ........39
B1086 – B1089 SEAT BELT PRE-TENSION-
ER LH .................................................................
41
Description ...............

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 ................................................
50
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

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INFINITI QX56 2009 Factory Service Manual DIAGNOSIS AND REPAIR WORK FLOWSRC-3
< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work FlowINFOID:0000000003775168
OVERALL SEQUENCE
DETAILED WOR

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INFINITI QX56 2009 Factory Service Manual 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 B

Page 3503 of 4171

INFINITI QX56 2009 Factory Service Manual INTERMITTENTS INCIDENTSRC-5
< BASIC INSPECTION >
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INTERMITTENTS INCIDENT
Inspection ProcedureINFOID:0000000003775169
INTERMITTENT TROUBLE
An intermittent incident may h

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INFINITI QX56 2009 Factory Service Manual SRC-6
< FUNCTION DIAGNOSIS >
SRS AIR BAG SYSTEM
FUNCTION DIAGNOSIS
SRS AIR BAG SYSTEM
SRS ConfigurationINFOID:0000000003775171
The air bag deploys if the air bag diagnosis sensor unit is activated whi

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