2011 INFINITI QX56 Wiring

REAR WINDOW DEFOGGER SYSTEMDEF-19
< WIRING DIAGRAM >
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G H
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M A
B
DEF
N
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JCLWM5503GB
Revision: 2010 May2011 QX56

DEF-20
< WIRING DIAGRAM >
REAR WINDOW DEFOGGER SYSTEM
JCLWM5504GB
Revision: 2010 May2011 QX56

REAR WINDOW DEFOGGER SYSTEMDEF-21
< WIRING DIAGRAM >
C
DE
F
G H
I
J
K
M A
B
DEF
N
O P
JCLWM5505GB
Revision: 2010 May2011 QX56

DEF-22
< WIRING DIAGRAM >
REAR WINDOW DEFOGGER SYSTEM
JCLWM5506GB
Revision: 2010 May2011 QX56

REAR WINDOW DEFOGGER SYSTEMDEF-23
< WIRING DIAGRAM >
C
DE
F
G H
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M A
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DEF
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JCLWM5507GB
Revision: 2010 May2011 QX56

DLK-2
DOOR LOCK .............................................................39
DOOR LOCK : CONSULT-III Function (BCM -
DOOR LOCK) .........................................................
39
INTELLIGENT KEY ................................................ ...40
INTELLIGENT KEY : CONSULT-III Function
(BCM - INTELLIGENT KEY) ...................................
41
TRUNK ................................................................... ...44
TRUNK : CONSULT-III Function (BCM - TRUNK) ...44
DIAGNOSIS SYSTEM (AUTOMATIC BACK
DOOR CONTROL UNIT) ...................................
45
CONSULT-III Function (AUTOMATIC BACK
DOOR CONTROL UNIT) ..................................... ...
45
ECU DIAGNOSIS INFORMATION ..............46
BCM ................................................................ ...46
List of ECU Reference ......................................... ...46
AUTOMATIC BACK DOOR CONTROL MOD-
ULE ....................................................................
47
Reference Value .................................................. ...47
Fail Safe .................................................................49
DTC Inspection Priority Chart ..............................49
DTC Index ..............................................................50
WIRING DIAGRAM .....................................51
DOOR & LOCK SYSTEM ............................... ...51
Wiring Diagram - DOOR & LOCK SYSTEM - ...... ...51
AUTOMATIC BACK DOOR SYSTEM ...............66
Wiring Diagram - AUTOMATIC BACK DOOR
SYSTEM - ............................................ ...................
66
INTEGRATED HOMELINK TRANSMITTER
SYSTEM ............ .............................................. ...
75
Wiring Diagram - INTEGRATED HOMELINK
TRANSMITTER SYSTEM - ....................................
75
BASIC INSPECTION ...... .............................77
DIAGNOSIS AND REPAIR WORK FLOW ..... ...77
Work Flow ............................................................ ...77
INSPECTION AND ADJUSTMENT ...................80
ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL ............................... ...
80
ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Description ....
80
ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Work Proce-
dure ........................................................................
80
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT (BCM) ......................................... ...
80
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT (BCM) : Description ....................
80
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT (BCM) : Work Procedure .......... ...
80
ADDITIONAL SERVICE WHEN REPLACING (AU-
TOMATIC BACK DOOR CONTROL MODULE) .......
80
ADDITIONAL SERVICE WHEN REPLACING
(AUTOMATIC BACK DOOR CONTROL MOD-
ULE) : Description ................................................ ...
80
ADDITIONAL SERVICE WHEN REPLACING
(AUTOMATIC BACK DOOR CONTROL MOD-
ULE) : Work Procedure ........................................ ...
80
DTC/CIRCUIT DIAGNOSIS ........................82
U1000 CAN COMM CIRCUIT ......................... ...82
Description ........................................................... ...82
DTC Logic ...............................................................82
Diagnosis Procedure ...............................................82
U1010 CONTROL UNIT (CAN) .........................83
DTC Logic ............................................................ ...83
Diagnosis Procedure ...............................................83
B2401 IGNITION POWER SUPPLY CIRCUIT ...84
DTC Logic ............................................................ ...84
Diagnosis Procedure ...............................................84
B2403 ENCODER ..............................................85
DTC Logic ............................................................ ...85
Diagnosis Procedure ...............................................85
B2409 HALF LATCH SWITCH ..........................86
DTC Logic ............................................................ ...86
Diagnosis Procedure ...............................................86
Component Inspection ............................................87
B2416 TOUCH SENSOR RH ............................88
DTC Logic ............................................................ ...88
Diagnosis Procedure ...............................................88
Component Inspection ............................................89
B2417 TOUCH SENSOR LH .............................90
DTC Logic ............................................................ ...90
Diagnosis Procedure ...............................................90
Component Inspection ............................................91
B2419 OPEN SWITCH ......................................92
DTC Logic ............................................................ ...92
Diagnosis Procedure ...............................................92
Component Inspection ............................................93
B2420 CLOSE SWITCH ....................................95
DTC Logic ............................................................ ...95
Diagnosis Procedure ...............................................95
Component Inspection ............................................96
B2421 CLUTCH OPERATION TIME .................97
DTC Logic ............................................................ ...97
Diagnosis Procedure ...............................................97
B2422 BACK DOOR STATE .............................98
DTC Logic ............................................................ ...98
Revision: 2010 May2011 QX56

DLK-8
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006225828
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 severi ty 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 “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/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 “SRS AIR BAG”.
 Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied 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 Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the ignition ON or engine running, DO NOT use air or electric 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:0000000006225829
NOTE:
 Before removing and installing any control units, first tu rn the push-button ignition switch to the LOCK posi-
tion, then disconnect bot h battery cables.
 After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnos is according to self-diagnosis results.
For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the bat tery disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Turn the push-button ignition switch to ACC position. (At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock wi ll remain released with both battery cables discon-
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
Revision: 2010 May2011 QX56

DOOR & LOCK SYSTEMDLK-51
< WIRING DIAGRAM >
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DLK
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WIRING DIAGRAM
DOOR & LOCK SYSTEM
Wiring Diagram - DOOR & LOCK SYSTEM -INFOID:0000000006225864
JCKWM4430GB
Revision: 2010 May2011 QX56