2009 INFINITI QX56 window

AV-114
< ECU DIAGNOSIS >[AUDIO SYSTEM]
AV CONTROL UNIT
79
(G/R) Ground IGN ON or START power
supply InputIgnition
switch ON or
START —
Battery voltage
80
(G) Ground Parking brake signal Input Ignition
switch ON Parking brake ON
0V
Parking brake OFF Battery voltage
81
(G/W) Ground Reverse signal
InputIgnition
switch ON R position
Battery voltage
Other than R position 0V
82
(W/R) Ground Vehicle speed signal (8-
pulse) InputIgnition
switch ON When vehicle speed is ap-
prox. 40 km/h (25MPH)
84
(BR) —
Rear view camera control
signal Input —
— —
92
(L/W) —AV communication signal 2
(H) Input/
Output ——
—
93
(B/P) —AV communication signal 2
(L) Input/
Output ——
—
94
(W/L) —
AV communication signal 1
(H) Input/
Output ——
—
95
(P/B) —
AV communication signal 1
(L) Input/
Output ——
—
96
(L) —CAN–H Input/
Output ——
—
97
(P) —CAN–L Input/
Output ——
—
121 Ground Antenna amp. ON signal Output Ignition
switch ACC —
Battery voltage
122 — Amplified window antenna
signal
Input —
— —
123 — GPS antenna signal — —— —
124 — Shield — —— —
125 — Satellite antenna signal Input Ignition
switch AC C ——
T

erminal
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
SKIA6649J
Revision: December 20092009 QX56

AV-182
< ON-VEHICLE REPAIR >[AUDIO SYSTEM]
AUDIO ANTENNA
AUDIO ANTENNA
Location of AntennasINFOID:0000000003776915
⇐
to AV control unit
Window Antenna RepairINFOID:0000000003776916
ELEMENT CHECK
1. Attach probe circuit tester (ohm setting) to antenna terminal on
each side.
1. Satellite antenna 2. Antenna Feeder3. Antenna amp M602
4. Satellite antenna feeder 5. M551, M6016. M78, M550
AWNIA1556ZZ
SEL250I
Revision: December 20092009 QX56

AV
AUDIO ANTENNAAV-183
< ON-VEHICLE REPAIR > [AUDIO SYSTEM]
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• When measuring continuity, wrap tin foil around the top of
probe. Then, press the foil against the wire with your finger.
2. If an element is broken, no continuity will exist.
3. To locate a break, move probe along element. Tester indication will change abruptly when probe passes the broken point.
ELEMENT REPAIR
Refer to AV-182, "Window Antenna Repair".
SEL122R
SEL252I
SEL253I
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
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

BCS-16
< FUNCTION DIAGNOSIS >[BCM]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Fu
nction (BCM - COMMON ITEM)INFOID:0000000003776387
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
BCM
BCM : CONSULT-III Function (BCM - BCM)INFOID:0000000003776388
WORK SUPPORT
Diagnosis mode Function Description
WORK SUPPORT Changes the setting for each system function.
SELF-DIAG RESULTS Displays the diagnosis results judged by BCM. Refer to BCS-51, "DTC Index"
.
CAN DIAG SUPPORT MNTR Monitors the reception status of CAN communication viewed from BCM.
DATA MONITOR The BCM input/output signals are displayed.
ACTIVE TEST The signals used to activate each device are forcibly supplied from BCM.
ECU IDENTIFICATION The BCM part number is displayed.
CONFIGURATION  Enables to read and save the vehicle specification.
 Enables to write the vehicle specification when replacing BCM.
System Sub system selection item Diagnosis mode
WORK SUPPORT DATA MONITOR ACTIVE TEST
BCM BCM ×
Door lock DOOR LOCK ×××
Rear window defo gger REAR DEFOGGER ×
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Remote keyless entry system MULTI REMOTE ENT ××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ××
Air conditioner AIR CONDITONER ×
Intelligent Key system INTELLIGENT KEY ×
Combination switch COMB SW ×
Immobilizer IMMU ××
Interior room lamp battery saver BATTERY SAVER ×××
Back door open TRUNK ××
RAP (retained accessory power) RETAINED PWR ×××
Signal buffer system SIGNAL BUFFER ××
TPMS (tire pressure monitoring sys-
tem) AIR PRESSURE MONITOR
×××
Vehicle security system PANIC ALARM ×
Revision: December 20092009 QX56

BCS
DIAGNOSIS SYSTEM (BCM)BCS-17
< FUNCTION DIAGNOSIS > [BCM]
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DOOR LOCK
DOOR LOCK : CONSULT-III Fu
nction (BCM - DOOR LOCK)INFOID:0000000003776389
WORK SUPPORT
DATA MONITOR
ACTIVE TEST
REAR WINDOW DEFOGGER
Item Description
RESET SETTING VALUE Return a value set with WORK SUPPORT of each system to a default value in factory shipment.
Work Item Description
DOOR LOCK-UNLOCK SET ON
OFF
ANTI-LOCK OUT SET ON
OFF
AUTOMATIC DOOR LOCK SELECT  SHIFT OUT OF P
 VH SPD
AUTOMATIC DOOR UNLOCK SE-
LECT MODE1
MODE2
MODE3
MODE4
MODE5
MODE6
AUTOMATIC LOCK/UNLOCK SE-
LECT ON
OFF
Monitor Item
[Unit} Description
IGN ON SW [ON/OFF] Indicates condition of ignition switch in ON position
KEY ON SW [ON/OFF] Indicate s condition of key switch
CDL LOCK SW [ON/OFF] Indicates condition of door lock and unlock switch
CDL UNLOCK SW [ON/OFF] Indicates condition of door lock and unlock switch
DOOR SW-DR [ON/OFF] Indicates condition of front door switch LH
DOOR SW-AS [ON/OFF] Indicates condition of front door switch RH
DOOR SW-RR [ON/OFF] Indicates condition of rear door switch RH
DOOR SW-RL [ON/OFF] Indicates condition of rear door switch LH
BACK DOOR SW [ON/OFF] Indicates condition of back door switch
KEY CYL LK-SW [ON/OFF] Indicates condition of lo ck signal from door key cylinder switch
KEY CYL UN-SW [ON/OFF] Indicates condition of un lock signal from door key cylinder switch
I-KEY LOCK [ON/OFF] Indicates condition of lock signal from Intelligent Key
I-KEY UNLOCK [ON/OFF] Indicates condition of unlock signal from Intelligent Key
Test Item Description
DOOR LOCK This test is able to check door lock operation [ALL LOCK/ALL UNLOCK/DR UNLOCK/
OTHER UNLOCK].
TRUNK/BACK DOOR This test is able to check trunk/back door lock operation [LOCK (SET)/UNLOCK (RE-
LEASE)].
Revision: December 20092009 QX56

BCS-18
< FUNCTION DIAGNOSIS >[BCM]
DIAGNOSIS SYSTEM (BCM)
REAR WINDOW DEFOGGER : CONSULT-III Function (BCM - REAR DEFOGGER)
INFOID:0000000003776390
DATA MONITOR
BUZZER
BUZZER : CONSULT-III Function (BCM - BUZZER)INFOID:0000000003776391
DATA MONITOR
ACTIVE TEST
INT LAMP
INT LAMP : CONSULT-III Function (BCM - INT LAMP)INFOID:0000000003776392
WORK SUPPORT
Monitor Item
[Unit] Description
IGN ON SW [ON/OFF] Indicates condition of ignition switch in ON position
IGN ACC SW [ON/OFF] Indicates condition of ignition switch in ACC position
REAR DEF SW [ON/OFF] Displays “Press (ON)/other (OFF)” stat us determined with the rear window defogger switch
Monitor Item
[Unit] Description
IGN ON SW [ON/OFF] Ignition switch (ON) st atus judged by ignition power supply input
KEY ON SW [ON/OFF] Key switch status
DOOR SW -DR [ON/OFF] Front door switch (driver side) status judged by BCM
LIGHT SW 1ST [ON/OFF] Lighting switch status judged by the lighting switch signal read with combination switch reading func-
tion
BUCKLE SW [ON/OFF] Seat belt buckle switch status
Test Item Description
LIGHT WARN ALM The light reminder warning operation can be checked by operating the relevant function (On/Off).
IGN KEY WARN ALM The key reminder warnin g operation can be checked by operating the relevant function (On/Off).
SEAT BELT WARN TEST The seat belt warning operation can be checked by operating the relevant function (On/Off).
DOOR WARNING IND The door open warning operation can be checked by operating the relevant function (On/Off).
JPLIA0093GB
Revision: December 20092009 QX56