2009 INFINITI QX56 ignition

BCS
POWER CONSUMPTION CONTROL SYSTEMBCS-13
< FUNCTION DIAGNOSIS > [BCM]
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POWER CONSUMPTION CONTROL SYSTEM
System DiagramINFOID:0000000003776384
System DescriptionINFOID:0000000003776385
OUTLINE
 BCM incorporates a power consumpt
ion control function that reduces the power consumption according to
the vehicle status.
 BCM switches the status (control m ode) by itself with the power saving control function. It performs the sleep
request to each unit (PDM E/R, combination meter and In telligent Key unit) that operates with the ignition
switch OFF.
Normal mode (wake-up)- CAN communication is normally performed with other units
- Each control with BCM is operating properly
CAN communication sleep mode (CAN sleep)- CAN transmission is stopped
- Control with BCM only is operating
Low power consumption mode (BCM sleep)- Low power consumption control is active
- CAN transmission is stopped
LOW POWER CONSUMPTION CONTROL WITH BCM
BCM reduces the power consumption with the follo wing operation in the low power consumption mode.
 The reading interval of the each switches changes from 10 ms interval to 20 ms interval.
Sleep mode activation
 BCM receives the sleep-ready signal (ready) from IPDM E/R, combination meter and Intelligent Key unit via
CAN communication.
 BCM transmits the sleep wake up signal (sleep) to each unit when all of the CAN sleep conditions are ful-
filled.
 Each unit stops the transmission of CAN communicati on with the sleep wake up signal. BCM is in CAN com-
munication sleep mode.
 BCM is in the low power consumption mode and perform the low power consumption control when all of the
BCM sleep conditions are fulfilled with CAN sleep condition.
AWMIA0082GB
Revision: December 20092009 QX56

BCS-14
< FUNCTION DIAGNOSIS >[BCM]
POWER CONSUMPTION CONTROL SYSTEM
Sleep condition
Wake-up operation
 BCM transmits sleep wake up signal (wake up) to eac
h unit when any condition listed below is established,
and then goes into normal mode from low power consumption mode.
 Each unit starts transmissions with CAN communication by receiving sleep wake up signals. Each unit trans-
mits wake up signals to BCM with CAN communication to convey the start of CAN communication.
Wake-up condition
CAN sleep condition B CM sleep condition
 Receiving the sleep-ready signal (ready) from all units
 Ignition switch: OFF
 Vehicle security system alarm: No operation
 Warning lamp: No operation
 Warning chime: No operation
 Stop lamp switch: OFF
 Key switch status: No change for 2 seconds
 Hazard warning lamp: No operation
Exterior lamp: OFF
 Door lock status: No change for 2 seconds
 CONSULT-III communication status: No communication
 Door switch status: No change for 2 seconds The controls only BCM are completed.
(Interior room lamp battery saver: Time out etc.)
BCM wake-up condition
 Ignition switch: OFF → ACC or ON
 Stop lamp switch: ON (Depress brake pedal)
 Any door switch: OFF → ON
 Lighting switch: OFF → 1ST or PASS
 Hazard switch: OFF → ON
 Back door opener switch OFF → ON
 Remote keyless entry receiver: Receiving
 Intelligent Key unit: Receiving
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)].
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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

BCS
DIAGNOSIS SYSTEM (BCM)BCS-19
< FUNCTION DIAGNOSIS > [BCM]
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* : Initial setting
DATA MONITOR
ACTIVE TEST
MULTIREMOTE ENT
Work Item Setting item Setting
SET I/L D-UNLCK INTCON ON* With the interior room lamp timer function
OFF Without the interior room lamp timer function
ROOM LAMP ON TIME SET MODE 1 0.5 sec.
Sets the interior room lamp gradual brightening time.
MODE 2* 1 sec.
MODE 3 2 sec.
MODE 4 3 sec.
MODE 5 0 sec.
ROOM LAMP OFF TIME SET MODE 1 0.5 sec.
Sets the interior room lamp gradual dimming time.
MODE 2 1 sec.
MODE 3 2 sec.
MODE 4* 3 sec.
MODE 5 0 sec.
Monitor Item
[Unit] Description
IGN ON SW [ON/OFF] Ignition switch (ON) status judges from IGN signal (ignition power supply)
KEY ON SW [ON/OFF] The switch status input from key switch
DOOR SW-DR [ON/OFF] The switch status input from front door switch LH
DOOR SW-AS [ON/OFF] The switch status input from front door switch RH
DOOR SW-RR [ON/OFF] The switch status input from rear door switch RH
DOOR SW- RL [ON/OFF] The switch status input from rear door switch LH
BACK DOOR SW [ON/OFF] The switch status input from back door switch
KEY CYL LK-SW [ON/OFF] Lock switch status in put from door lock and unlock switch
KEY CYL UN-SW [ON/OFF] Lock switch status in put from door lock and unlock switch
CDL LOCK SW [ON/OFF] Lock switch status input from door lock and unlock switch
CDL UNLOCK SW [ON/OFF] Unlock switch status input from door lock and unlock switch
I-KEY LOCK [ON/OFF] Lock signal status received fr om Intelligent Key unit by CA N communication
I-KEY UNLOCK [ON/OFF] Unlock signal status received from Intelligent Key unit by CAN communication
Test Item Operation Description
INT LAMP ON Outputs the interior room lamp control signal to turn the interior room lamps ON.
OFF Stops the interior room lamp control signal to turn the interior room lamps OFF.
IGN ILLUM ON
Outputs the ignition keyhole illumination control signal to turn the ignition keyhole il-
lumination lamp ON.
OFF Stops the ignition keyhole illumination control signal to turn the ignition keyhole illu-
mination lamp OFF.
STEP LAMP TEST ON Outputs the step lamp control signal to turn the step lamps ON.
OFF Stops the step lamp control signal to turn the step lamps OFF.
LUGGAGE LAMP TEST ON Outputs the luggage lamp control signal to turn the luggage lamp ON.
OFF Stops the luggage lamp control signal to turn the luggage lamp OFF.
Revision: December 20092009 QX56

BCS-20
< FUNCTION DIAGNOSIS >[BCM]
DIAGNOSIS SYSTEM (BCM)
MULTIREMOTE ENT : CONSULT-III Function (BCM - MULTIREMOTE ENT)
INFOID:0000000004176237
WORK SUPPORT
Hazard and horn reminder mode
Auto locking function mode
Panic alarm operation mode
Back door open operation mode
Keyless power window down operation mode
DATA MONITOR
Te s t I t e m D e s c r i p t i o n
REMO CONT ID REGIST Keyfob ID code can be registered.
REMO CONT ID ERASUR Keyfob ID code can be erased.
REMO CONT ID CONFIR It can be checked whether keyfob ID code is registered or not in this mode.
HORN CHIRP SET Horn chirp function mode can be changed in this mode. The function mode will be changed when "CHANG SETT" on CONSULT-III screen is touched.
HAZARD LAMP SET Hazard lamp function mode can be changed in this mode. The function mode will be changed when "CHANG SETT" on CONSULT-III screen is touched.
MULTI ANSWER BACK SET Hazard and horn reminder mode can be changed in this mode. The reminder mode will be changed
when “CHANG SETT” on CONSULT-III screen is touched.
AUTO LOCK SET Auto locking function mode can be changed in this mode. The function mode will be changed when
"CHANG SETT" on CONSULT-
III screen is touched.
PANIC ALRM SET Panic alarm operation mode can be changed in this mode. The operation mode will be changed when
"CHANG SETT" on CONSULT-
III screen is touched.
PW DOWN SET Keyless power window down (open) operation mode can be changed in this mode. The operation
mode will be changed when "CHANG SETT" on CONSULT-III screen is touched.
MODE 1
(C mode) MODE 2
(S mode) MODE 3MODE 4MODE 5MODE 6
Keyfob
operation Lock Unlock Lock Unlock Lock Unlock Lock Unlock Lock Unlock Lock Unlock
Hazard warning
lamp flash TwiceOnceTwice — — — TwiceOnceTwice — — Once
Horn sound Once———————Once—Once—
MODE 1 MODE 2 MODE 3
Auto locking function 5 minutes Nothing 1 minute
MODE 1 MODE 2 MODE 3
Keyfob operation 0.5 seconds Nothing 1.5 seconds
MODE 1 MODE 2 MODE 3
Keyfob operation 0.5 seconds Nothing 0.5 seconds
MODE 1MODE 2MODE 3
Keyfob operation 3 seconds Nothing 5 seconds
Monitored Item Description
DOOR SW-AS Indicates [ON/OFF] condition of front door switch RH.
DOOR SW-RR Indicates [ON/OFF] condition of rear door switch RH.
DOOR SW-RL Indicates [ON/OFF] condition of rear door switch LH.
DOOR SW-DR Indicates [ON/OFF] condition of front door switch LH.
KEY ON SW Indicates [ON/OFF] condition of key switch.
ACC ON SW Indicates [ON/OFF] condition of ignition switch in ACC position.
Revision: December 20092009 QX56

BCS
DIAGNOSIS SYSTEM (BCM)BCS-21
< FUNCTION DIAGNOSIS > [BCM]
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ACTIVE TEST
HEADLAMP
HEADLAMP : CONSULT-III Func
tion (BCM - HEAD LAMP)INFOID:0000000003776393
WORK SUPPORT
*: Initial settingIGN ON SW Indicates [ON/OFF] condition of ignition switch in ON position.
KEYLESS PANIC Indicates [ON/
OFF] condition of panic signal from keyfob.
KEYLESS UNLOCK Indicates [ON/O FF] condition of unlock signal from keyfob.
KEYLESS LOCK Indicates [ON/OFF] conditio n of lock signal from keyfob.
KEY CYL LK-SW Indicates [ON/OFF] condition of lock signal from door key cylinder switch.
KEY CYL UN-SW Indicates [ON/OFF] condition of un lock signal from door key cylinder switch.
CDL UNLOCK SW Indicates [ON/OFF] condition of unlock signal from lock/unlock switch.
CDL LOCK SW Indicates [ON/OFF] condition of lock signal from lock/unlock switch.
DOOR SW-RL Indicates [ON/OFF] condition of rear door switch LH.
DOOR SW-RR Indicates [ON/OFF] condition of rear door switch RH.
RKE LCK-UNLCK Indicates [ON/OFF] condition of lock/unlock signal at the same time from keyfob.
RKE KEEP UNLK Indicates [ON/OFF] condition of unlock signal from keyfob. Monitored Item Description
Test Item Description
FLASHER This test is able to check right and left hazard reminder operation. The right hazard lamp turns on when “RH” on CONSULT-III screen is touched and th e left hazard lamp turns on when "LH" on CON-
SULT-III screen is touched.
POWER WINDOW DOWN This test is able to check power window down operation. The windows are lowered when “ON” on CONSULT-III screen is touched.
HORN This test is able to check panic alarm and horn reminder operations. The alarm activate for 0.5 sec- onds after “ON” on CONSULT-III screen is touched.
DOOR LOCK This test is able to check door lock operatio n. The doors lock and unlock based on the item on CON-
SULT-III screen touched.
Work Item Setting item Setting
BATTERY SAVER SET ON* With the exterior lamp battery saver function
OFF Without the exterior lamp battery saver function
CUSTOM A/LIGHT SET-
TING MODE1* Normal
MODE2 More sensitive setting than normal setting (Turns ON earlier than normal operation.)
MODE3 More sensitive setting than MODE 2 (Turns ON earlier than MODE 2.)
MODE4 Less sensitive setting than normal setting (Turns ON later than normal operation.)
ILL DELAY SET MODE1* 45 sec.
Sets delay timer function timer operation time
(All doors closed)
MODE2
Without the func-
tion
MODE3 30 sec.
MODE4 60 sec.
MODE5 90 sec.
MODE6 120 sec.
MODE7 150 sec.
MODE8 180 sec.
Revision: December 20092009 QX56

BCS-22
< FUNCTION DIAGNOSIS >[BCM]
DIAGNOSIS SYSTEM (BCM)
DATA MONITOR
ACTIVE TEST
WIPER
WIPER : CONSULT-III Function (BCM - WIPER)INFOID:0000000003776394
WORK SUPPORT
*: Factory setting
DATA MONITOR
Monitor Item
[Unit] Description
IGN ON SW [ON/OFF] Ignition switch (ON) status judged from IGN signal (ignition power supply)
HI BEAM SW [ON/OFF]
Each switch status that BCM judges from the combination switch reading function
H/L SW POS [ON/OFF]
LIGHT SW 1ST [ON/OFF]
PASSING SW [ON/OFF]
AUTO LIGHT SW [ON/OFF]
FR FOG SW [ON/OFF]
DOOR SW-DR [ON/OFF] The switch status input from front door switch LH
AUT LIGHT SYS [ON/OFF] Auto light
system status that BCM judges from the vehicle condition
Test Item Operation Description
TA I L L A M P ON
Transmits the position light reques
t signal to IPDM E/R with CAN com-
munication to turn the tail lamp ON.
OFF Stops the tail lamp request signal transmission.
HEAD LAMP HI
Transmits the high beam request signal with CAN communication to turn
the headlamp (HI).
LO Transmits the low beam request signal with CAN communication to turn
the headlamp (LO).
OFF Stops the high & low beam request signal transmission.
FR FOG LAMP ON
Transmits the front fog lights request signal to IPDM E/R with CAN com-
munication to turn the front fog lamp ON.
OFF Stops the front fog lights request signal transmission.
DAYTIME RUNNING LIGHT ON
Transmits the day time running light request signal to IPDM E/R with
CAN communication to turn the each lamps ON.
OFF Stops the day time running light request signal transmission.
Work Item Setting
Item Description
WIPER SPEED
SETTING ON*
With vehicle speed
(Front wiper intermittent time linked with the vehicle speed and wiper intermittent dial position)
OFF Without vehicle speed
(Front wiper intermittent time linked with the wiper intermittent dial position)
Monitor Item
[Unit] Description
IGN ON SW [ON/OFF] Ignition switch ON status judged from ignition power supply
Revision: December 20092009 QX56