2009 INFINITI QX56 Factory Service Manual

battery capacity steering lug pattern radiator keyless entry lumbar support

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INFINITI QX56 2009 Factory Service Manual ACC-1
ENGINE
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SECTION ACC
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ACC
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CONTENTS
ACCELERATOR CONTROL SYSTEM
PRECAUTION ....... ........................................2
PRECAUTIONS .................................

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INFINITI QX56 2009 Factory Service Manual ACC-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005851830
The Supplemental Restraint S

ACC-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005851830
The Supplemental Restraint System such as “A IR 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000005851831
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
Revision: December 20092009 QX56

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INFINITI QX56 2009 Factory Service Manual PRECAUTIONSACC-3
< PRECAUTION >
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5. When the repair work is completed, return the ignition switch to the
″LOCK ″ position before connecting
the battery cables. (At

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INFINITI QX56 2009 Factory Service Manual ACC-4
< REMOVAL AND INSTALLATION >
ACCELERATOR CONTROL SYSTEM
REMOVAL AND INSTALLATION
ACCELERATOR CONTROL SYSTEM
Removal and InstallationINFOID:0000000003771801
Adjustable Accelerator Pedal
CAUTION:

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INFINITI QX56 2009 Factory Service Manual ACCELERATOR CONTROL SYSTEMACC-5
< REMOVAL AND INSTALLATION >
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4. Disconnect the adjustable pedal electric motor electrical connec-
tor.
5. Disconnect the adjustable peda

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INFINITI QX56 2009 Factory Service Manual ACC-6
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Accelerator ControlINFOID:0000000003771

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INFINITI QX56 2009 Factory Service Manual
ADP-1
BODY INTERIOR
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SECTION ADP
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ADP
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CONTENTS
AUTOMATIC DRIVE POSITIONER
BASIC INSPECTION ....... .............................5
DIAGNOSIS AND REPAIR WORKFLOW ..... ....

ADP-1
BODY INTERIOR
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SECTION ADP
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ADP
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CONTENTS
AUTOMATIC DRIVE POSITIONER
BASIC INSPECTION ....... .............................5
DIAGNOSIS AND REPAIR WORKFLOW ..... .....5
Work Flow ........................................................... ......5
INSPECTION AND ADJUSTMENT .....................8
Preliminary Check ............................................... ......8
Special Repair Requirement .....................................8
PRE-INSPECTION FOR DIAGNOSTIC ..............9
Basic Inspection .................................................. ......9
FUNCTION DIAGNOSIS ..............................11
AUTOMATIC DRIVE POSITIONER SYSTEM ....11
AUTOMATIC DRIVE POSITIONER SYSTEM ....... ....11
AUTOMATIC DRIVE POSITIONER SYSTEM :
System Diagram ......................................................
11
AUTOMATIC DRIVE POSITIONER SYSTEM :
Component Parts Location ......................................
12
AUTOMATIC DRIVE POSITIONER SYSTEM :
System Description .................................................
12
AUTOMATIC DRIVE POSITIONER SYSTEM :
Component Description ..........................................
13
MANUAL FUNCTION ............................................ ....14
MANUAL FUNCTION : System Diagram ................15
MANUAL FUNCTION : System Description ............15
MANUAL FUNCTION : Component Parts Loca-
tion ..........................................................................
17
MANUAL FUNCTION : Component Description ....17
MEMORY FUNCTION ........................................... ....18
MEMORY FUNCTION : System Diagram ...............19
MEMORY FUNCTION : System Description ..........19
MEMORY FUNCTION : Component Parts Loca-
tion ..........................................................................
20
MEMORY FUNCTION : Component Description ....21
EXIT ASSIST FUNCTION ...................................... ....22
EXIT ASSIST FUNCTION : System Diagram .........22
EXIT ASSIST FUNCTION : Sy stem Description .....22
EXIT ASSIST FUNCTION : Component Parts Lo-
cation ................................................................... ....
23
EXIT ASSIST FUNCTION :
Component Description ..........................................
24
ENTRY ASSIST FUNCTION .................................. ....24
ENTRY ASSIST FUNCTION : System Diagram .....25
ENTRY ASSIST FUNCTION : System Description
....
25
ENTRY ASSIST FUNCTION : Component Parts
Location ............................................................... ....
26
ENTRY ASSIST FUNCTION :
Component Description ..........................................
27
DIAGNOSIS SYSTEM (DRIVER SEAT C/U) ....28
Diagnosis Description ..............................................28
CONSULT-III Function ............................................28
COMPONENT DIAGNOSIS .........................31
U1000 CAN COMM CIRCUIT ...........................31
Description ........................................................... ....31
DTC Logic ................................................................31
Special Repair Requirement ....................................31
B2112 SLIDING MOTOR ..................................32
Description ...............................................................32
DTC Logic ................................................................32
Diagnosis Procedure ..............................................32
B2113 RECLINING MOTOR .............................33
Description ...............................................................33
DTC Logic ................................................................33
Diagnosis Procedure ..............................................33
B2114 SEAT LIFTER FR ..................................34
Description ...............................................................34
DTC Logic ................................................................34
Diagnosis Procedure ..............................................34
B2115 SEAT LIFTER RR ..................................35
Description ...............................................................35
Revision: December 20092009 QX56

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INFINITI QX56 2009 Factory Service Manual
ADP-2
DTC Logic ...............................................................35
Diagnosis Procedure .............................................35
B2117 ADJ PEDAL MOTOR ..........................

ADP-2
DTC Logic ...............................................................35
Diagnosis Procedure .............................................35
B2117 ADJ PEDAL MOTOR .............................36
Description ........................................................... ...36
DTC Logic ...............................................................36
Diagnosis Procedure .............................................36
B2118 TILT SENSOR ........................................38
Description ........................................................... ...38
DTC Logic ...............................................................38
Diagnosis Procedure .............................................38
B2120 ADJ PEDAL SENSOR ...........................40
Description ........................................................... ...40
DTC Logic ...............................................................40
Diagnosis Procedure .............................................40
B2126 DETENT SW ...........................................42
Description ........................................................... ...42
DTC Logic ...............................................................42
Diagnosis Procedure .............................................42
B2128 UART COMMUNICATION LINE ............44
Description ........................................................... ...44
DTC Logic ...............................................................44
Diagnosis Procedure .............................................44
POWER SUPPLY AND GROUND CIRCUIT .....46
BCM ........................................................................ ...46
BCM : Diagnosis Procedure ...................................46
DRIVER SEAT CONTROL UNIT ........................... ...46
DRIVER SEAT CONTROL UNIT :
Diagnosis Procedure .............................................
47
DRIVER SEAT CONTROL UNIT : Special Repair
Requirement ........................................................ ...
47
AUTOMATIC DRIVE POSITIONER CONTROL
UNIT ....................................................................... ...
47
AUTOMATIC DRIVE POSITIONER CONTROL
UNIT : Diagnosis Procedure ..................................
47
AUTOMATIC DRIVE POSITIONER CONTROL
UNIT : Special Repair Requirement .......................
48
SLIDING SWITCH ..............................................49
Description ........................................................... ...49
Component Function Check .................................49
Diagnosis Procedure .............................................49
Component Inspection ............................................50
RECLINING SWITCH ........................................51
Description ........................................................... ...51
Component Function Check .................................51
Diagnosis Procedure .............................................51
Component Inspection ............................................52
LIFTING SWITCH (FRONT) ..............................53
Description ........................................................... ...53
Component Function Check .................................53
Diagnosis Procedure .............................................53
Component Inspection ......................................... ...54
LIFTING SWITCH (REAR) ................................55
Description ........................................................... ...55
Component Function Check ..................................55
Diagnosis Procedure ..............................................55
Component Inspection ............................................56
TILT SWITCH ....................................................57
Description ........................................................... ...57
Component Function Check ..................................57
Diagnosis Procedure ..............................................57
Component Inspection ............................................58
PEDAL ADJUSTING SWITCH ..........................59
Description ........................................................... ...59
Component Function Check ..................................59
Diagnosis Procedure ..............................................59
Component Inspection ............................................61
SEAT MEMORY SWITCH .................................62
Description ........................................................... ...62
Component Function Check ..................................62
Diagnosis Procedure ..............................................62
Component Inspection ............................................63
DOOR MIRROR REMOTE CONTROL
SWITCH .............................................................
64
CHANGEOVER SWITCH ....................................... ...64
CHANGEOVER SWITCH : Description ..................64
CHANGEOVER SWITCH : Component Function
Check ......................................................................
64
CHANGEOVER SWITCH : Diagnosis Procedure ...64
CHANGEOVER SWITCH : Component Inspec-
tion ..........................................................................
65
MIRROR SWITCH .................................................. ...66
MIRROR SWITCH : Description .............................66
MIRROR SWITCH : Component Function Check ...66
MIRROR SWITCH : Diagnosis Procedure ..............66
MIRROR SWITCH : Component Inspection ...........68
POWER SEAT SWITCH GROUND CIRCUIT ...69
Diagnosis Procedure ..............................................69
DETENTION SWITCH .......................................70
Description ........................................................... ...70
Component Function Check ..................................70
Diagnosis Procedure ..............................................70
FRONT DOOR SWITCH (DRIVER SIDE) .........72
Description ........................................................... ...72
Component Function Check ...................................72
Diagnosis Procedure ...............................................72
Component Inspection ............................................72
SLIDING SENSOR ............................................74
Description ........................................................... ...74
Component Function Check ..................................74
Diagnosis Procedure ..............................................74
Revision: December 20092009 QX56

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