2009 INFINITI QX56 200

AV-186
< ON-VEHICLE REPAIR >[AUDIO SYSTEM]
MICROPHONE
MICROPHONE
Removal and InstallationINFOID:0000000003776919
REMOVAL
1. Remove the front roof console finisher. Refer to
INT-17,
"Removal and Installation".
2. Disconnect the Bluetooth microphone connector (A).
3. Detach the Bluetooth microphone (1) from the front roof console finisher and remove the Bluetooth microphone (1).
INSTALLATION
Installation is in the reverse order of removal.
ALNIA0275ZZALNIA0274ZZ
Revision: December 20092009 QX56

AV
REAR VIEW CAMERAAV-187
< ON-VEHICLE REPAIR > [AUDIO SYSTEM]
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REAR VIEW CAMERA
Removal and InstallationINFOID:0000000003776920
REMOVAL
1. Remove the back door lower finisher. Refer to INT-21, "Removal and Installation".
2. Remove the license lamp finisher. Refer to EXT-24, "
Removal and Installation".
3. Disconnect the rear view camera connector.
4. Remove the two screws and remove the rear view camera.
INSTALLATION
Installation is in the reverse order of removal.
NOTE:
After installing the rear view camera, perform side distance guideline correction procedure. Refer to AV- 7 ,
"REAR VIEW MONITOR GUIDING LINE ADJUSTMENT : Special Repair Requirement".
LKIA0479E
Revision: December 20092009 QX56

AV-188
< ON-VEHICLE REPAIR >[AUDIO SYSTEM]
REAR VIEW CAMERA CONTROL UNIT
REAR VIEW CAMERA CONTROL UNIT
Removal and InstallationINFOID:0000000003776921
REMOVAL
1. Remove the luggage side finishers LH. Refer to
INT-19,
"Removal and Installation".
2. Disconnect the rear view camera control unit electrical connec- tor.
3. Remove the two screws and remove the rear view camera con- trol unit.
INSTALLATION
Installation is in the reverse order of removal.
LKIA0478E
Revision: December 20092009 QX56

BCS
BCS-1
ELECTRICAL & POWER CONTROL
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SECTION BCS
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CONTENTS
BODY CONTROL SYSTEM
BCM
BASIC INSPECTION ....... .............................
3
INSPECTION AND ADJU STMENT .....................3
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT .................................................... ......
3
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description ..................................
3
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement .......
3
CONFIGURATION ................................................. ......3
CONFIGURATION : Description ...............................3
CONFIGURATION : Special Repair Requirement ......4
FUNCTION DIAGNOSIS .. .............................5
BODY CONTROL SYSTEM ........................... .....5
System Description ............................................. ......5
Component Parts Location ........................................6
COMBINATION SWITCH READING SYSTEM
.....
7
System Diagram .................................................. ......7
System Description ...................................................7
Component Parts Location ......................................10
SIGNAL BUFFER SYSTEM ...............................12
System Diagram .................................................. ....12
System Description .................................................12
POWER CONSUMPTION CONTROL SYS-
TEM ....................................................................
13
System Diagram .................................................. ....13
System Description .................................................13
Component Parts Location ......................................15
DIAGNOSIS SYSTEM (BCM) ............................16
COMMON ITEM ..................................................... ....16
COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) .....................................................
16
BCM ....................................................................... ....16
BCM : CONSULT-III Function (BCM - BCM) ...........16
DOOR LOCK .......................................................... ....17
DOOR LOCK : CONSULT-III Function (BCM -
DOOR LOCK) ..........................................................
17
REAR WINDOW DEFOGGER ............................... ....17
REAR WINDOW DEFOGGER : CONSULT-III
Function (BCM - REAR DEFOGGER) .....................
18
BUZZER ................................................................. ....18
BUZZER : CONSULT-III Function (BCM - BUZZ-
ER) ..........................................................................
18
INT LAMP ............................................................... ....18
INT LAMP : CONSULT-III Function (BCM - INT
LAMP) ......................................................................
18
MULTIREMOTE ENT ............................................. ....19
MULTIREMOTE ENT : CONSULT-III Function
(BCM - MULTIREMOTE ENT) .................................
20
HEADLAMP ........................................................... ....21
HEADLAMP : CONSULT-III Function (BCM -
HEAD LAMP) ...........................................................
21
WIPER .................................................................... ....22
WIPER : CONSULT-III Function (BCM - WIPER) ....22
FLASHER ............................................................... ....23
FLASHER : CONSULT-III Function (BCM -
FLASHER) ...............................................................
23
AIR CONDITIONER ............................................... ....23
AIR CONDITIONER : CONSULT-III Function
(BCM - AUTO AIR CONDITIONER) ........................
24
INTELLIGENT KEY ................................................ ....24
INTELLIGENT KEY : CONSULT-III Function
(BCM - INTELLIGENT KEY) ....................................
24
Revision: December 20092009 QX56

BCS-2
COMB SW .................................................................24
COMB SW : CONSULT-III Function (BCM -
COMB SW) .............................................................
24
IMMU ...................................................................... ...25
IMMU : CONSULT-III Function (BCM - IMMU) .......25
BATTERY SAVER ................................................. ...25
BATTERY SAVER : CONSULT-III Function (BCM
- BATTERY SAVER) ........................................... ...
25
TRUNK ................................................................... ...26
TRUNK : CONSULT-III Function (BCM - TRUNK) ...26
RETAINED PWR .................................................... ...26
RETAINED PWR : CONSULT-III Function (BCM -
RETAINED PWR) ...................................................
26
SIGNAL BUFFER ................................................... ...26
SIGNAL BUFFER : CONSULT-III Function (BCM
- SIGNAL BUFFER) ................................................
26
AIR PRESSURE MONITOR ................................... ...27
AIR PRESSURE MONITOR : Diagnosis Descrip-
tion ..........................................................................
27
AIR PRESSURE MONITOR : CONSULT-III Func-
tion ..........................................................................
28
THEFT ALM ........................................................... ...29
THEFT ALM : CONSULT-III Function (BCM -
THEFT ALM) ..........................................................
29
COMPONENT DIAGNOSIS ........................30
U1000 CAN COMM CIRCUIT ......................... ...30
Description ........................................................... ...30
DTC Logic ...............................................................30
Diagnosis Procedure ..............................................30
U1010 CONTROL UNIT (CAN) .........................31
DTC Logic ............................................................ ...31
Diagnosis Procedure ..............................................31
Special Repair Requirement ...................................31
POWER SUPPLY AND GROUND CIRCUIT .....32
Diagnosis Procedure ............................................ ...32
COMBINATION SWITCH INPUT CIRCUIT .......33
Diagnosis Procedure ............................................ ...33
Special Repair Requirement ...................................34
COMBINATION SWITCH OUTPUT CIRCUIT ...35
Diagnosis Procedure ...............................................35
Special Repair Requirement ...................................35
COMBINATION SWITCH ..................................36
Description ........................................................... ...36
Diagnosis Procedure ...............................................36
ECU DIAGNOSIS .......................................38
BCM (BODY CONTROL MODULE) ............... ...38
Reference Value .................................................. ...38
Terminal Layout ......................................................40
Physical Values .......................................................40
Wiring Diagram .......................................................46
Fail Safe .................................................................50
DTC Inspection Priority Chart ...............................51
DTC Index ..............................................................51
SYMPTOM DIAGNOSIS ............................53
COMBINATION SWITCH SYSTEM SYMP-
TOMS .............................................................. ...
53
Symptom Table .................................................... ...53
PRECAUTION ............................................54
PRECAUTIONS .............................................. ...54
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ...
54
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ..................................
54
ON-VEHICLE REPAIR ...............................56
BCM (BODY CONTROL MODULE) ............... ...56
Removal and Installation ...................................... ...56
Revision: December 20092009 QX56

BCS
INSPECTION AND ADJUSTMENTBCS-3
< BASIC INSPECTION > [BCM]
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BASIC INSPECTION
INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN
REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPL ACING CONTROL UNIT : Description
INFOID:0000000003776373
When replacing BCM, save or print current vehicle specification with CONSULT-III configuration before
replacement.
Configuration has three functions as follows
• READ CONFIGURATION is the function to read (e xtract) vehicle configuration of current BCM.
 WRITE CONFIGURATION - Manual sele ction is the function to select and write vehicle configuration on
BCM manually.
 WRITE CONFIGURATION - Config file is the function to write vehicle configuration with the data extracted
from current BCM.
CAUTION:
• When replacing BCM, you must perform WRITE CONFIGURATION with CONSULT-III.
 Complete the procedure of WRITE CONFIGURATION in order.
 If you set incorrect WRITE CONF IGURATION, incidents will occur.
 Configuration is different for each vehicle model. Confirm conf iguration of each vehicle model.
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement
INFOID:0000000003776374
1. SAVING VEHICLE SPECIFICATION
Perform “READ CONFIGURATION” with CONSULT-III to save or print current vehicle specification.
>> GO TO 2
2. REPLACE BCM
Replace BCM. Refer to BCS-56, "Removal and Installation"
.
>> GO TO 3
3. WRITING VEHICLE SPECIFICATION
Perform “WRITE CONFIGURATION - Config file” or “WRITE CONFIGURATION - Manual selection” with
CONSULT-III to write vehicl e specification. Refer to BCS-4, "CONFIGURATION : Special Repair Require-
ment".
>> GO TO 4
4. INITIALIZE BCM (NATS)
Perform BCM initialization. (NATS)
>> WORK END
CONFIGURATION
CONFIGURATION : DescriptionINFOID:0000000003776375
Vehicle specification needs to be written with CONSULT- III because it is not written after replacing BCM.
Configuration has three functions as follows
 READ CONFIGURATION is the function to read (e xtract) vehicle configuration of current BCM.
 WRITE CONFIGURATION - Manual sele ction is the function to select and write vehicle configuration on
BCM manually.
 WRITE CONFIGURATION - Config file is the function to write vehicle configuration with the data extracted
from current BCM.
CAUTION:
Revision: December 20092009 QX56

BCS-4
< BASIC INSPECTION >[BCM]
INSPECTION AND ADJUSTMENT
 When replacing BCM, you must perform
WRITE CONFIGURATION with CONSULT-III.
 Complete the procedure of WRITE CONFIGURATION in order.
 If you set incorrect WRITE CONF IGURATION, incidents will occur.
 Configuration is different for each vehicle mode l. Confirm configuration of each vehicle model.
CONFIGURATION : Special Repair RequirementINFOID:0000000003776376
1. WRITING VEHICLE SPECIFICATION
Perform “WRITE CONFIGURA TION” with CONSULT-III.
When writing saved data>>GO TO 2
When writing manually>>GO TO 3
2. PERFORM “WRITE CONFIG URATION - CONFIG FILE”
Perform “WRITE CONFIGURATION - Config file” with CONSULT-III.
>> WORK END
3. PERFORM “WRITE CONFIGURA TION - MANUAL SELECTION”
For “WRITE CONFIGURATION - Manual selection”, using the following flow chart, identify the correct model
and configuration list.
Confirm and/or change setting value for each item according to the configuration list.
Depending on CONSULT-III software version being used, some or all of the write configuration items shown in
the following configuration lists may be displayed. If an item does not display on the CONSULT-III “WRITE
CONFIGURATION - Manual selection” screen, then it is an auto setting item and it cannot be manually set or
changed.
NOTE:
Confirm vehicle model. Refer to GI-20, "Model Variation"
.
>> WORK END
MANUAL SETTING ITEM
Items Setting value
KEYLESS ENTRY WITH ⇔WITHOUT
I-KEY WITH ⇔WITHOUT
DTRL WITH ⇔WITHOUT
SPEED SNS WIP WITH ⇔WITHOUT
Revision: December 20092009 QX56

BCS
BODY CONTROL SYSTEMBCS-5
< FUNCTION DIAGNOSIS > [BCM]
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FUNCTION DIAGNOSIS
BODY CONTROL SYSTEM
System DescriptionINFOID:0000000003776377
OUTLINE
 BCM (Body Control Module) controls
the various electrical components. It inputs the information required to
the control from CAN communication and the si gnal received from each switch and sensor.
 BCM has combination switch reading function for reading the operation status of combination switches (light,
turn signal, wiper and washer) in addition to a function fo r controlling the operation of various electrical com-
ponents. It also has the signal transmission function as the passed point of signal and the power consump-
tion control function that reduces the power consumption with the ignition switch OFF.
 BCM is equipped with the diagnosis function that perfo rms the diagnosis with CONSULT-III and various set-
tings.
BCM control function list
System Refer to
Combination switch reading system BCS-7, "System Diagram"
Signal buffer systemBCS-12, "System Diagram"
Power consumption control systemBCS-13, "System Diagram"
Auto light systemEXL-11, "System Diagram"
Turn signal and hazard warning lamp systemEXL-15, "System Diagram"
Headlamp systemEXL-7, "System Diagram"
Front fog lamp systemEXL-14, "System Diagram"
Daytime running light systemEXL-9, "System Diagram"
Interior room lamp control systemINL-6, "System Diagram"
Step lamp systemINL-6, "System Diagram"
Interior room lamp battery saver systemINL-6, "System Diagram"
Front wiper and washer systemWW-4, "System Diagram"
Rear wiper and washer systemWW-8, "System Diagram"
Warning chime systemWCS-4, "WARNING CHIME SYSTEM : System Diagram"
Door lock systemDLK-14, "DOOR LOCK AND UNLOCK SWITCH : System Diagram"
(NATS) Nissan anti-theft system SEC-11, "System Diagram"
Vehicle security systemSEC-15, "System Diagram"
Rear window defogger systemDEF-4, "System Diagram"
Intelligent Key systemSEC-7, "System Diagram"
Power window systemPWC-5, "System Diagram"
RAP (retained accessory power) systemBCS-26, "RETAINED PWR : CONSULT-
III Function (BCM - RETAINED PWR)"
TPMS (tire pressure monitoring system) BCS-28, "AIR PRESSURE MONITOR : CONSULT-III Function"
Revision: December 20092009 QX56