2011 INFINITI QX56 ignition

BCS-12
< SYSTEM DESCRIPTION >
SYSTEM
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 following operation in the low power consumption mode.
 The reading interval of the each switches changes from 10 ms interval to 60 ms interval.
Sleep mode activation
 BCM receives the sleep-ready signal (ready) from IPDM E/R, combination meter and automatic back door
control module 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 communication 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.
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- mit wake up signals to BCM with CAN communication to convey the start of CAN communication.
CAN sleep condition BCM sleep condition
 Receiving the sleep-ready signal (ready) from all units
 Ignition switch: OFF
 Vehicle security system: Not operation
 Warning chime: Not operation
 Intelligent Key system buzzer: Not operation
 Stop lamp switch: OFF
 Turn signal indicator lamp: Not operation
Exterior lamp: OFF
 Door lock status: No change
 CONSULT-III communication status: Not communication
 Meter display signal: Non-transmission
 Door switch status: No change
 Rear window defogger: OFF
 Driver door lock status: No change  Interior room lamp battery saver: Time out
 RAP system: OFF
 IVIS: Not operation
 Remote keyless entry receiver communication status: No com-
munication
 LOCK indicator lamp: Not operation
 ACC indicator lamp: Not operation
 ON indicator lamp: Not operation
Revision: 2010 May2011 QX56

BCS
SYSTEMBCS-13
< SYSTEM DESCRIPTION >
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Wake-up condition
Wake-up condition
 Receiving the sleep-ready signal (Not-ready) from any units
 Push-button ignition switch (push switch): OFF → ON
 Hazard switch: ON
 HI BEAM switch: OFF → ON, ON → OFF
 PASSING switch: OFF → ON, ON → OFF
 HEADLAMP 1 switch: OFF → ON, ON → OFF
 HEADLAMP 2 switch: OFF → ON, ON → OFF
 TAIL LAMP switch: OFF → ON
 FR FOG switch: OFF → ON, ON → OFF
 TURN RH: OFF → ON, ON → OFF
 TURN LH: OFF → ON, ON → OFF
 Driver door switch: OFF → ON, ON → OFF
 Passenger door switch: OFF → ON, ON → OFF
 Rear RH door switch: OFF → ON, ON → OFF
 Rear LH door switch: OFF → ON, ON → OFF
 Back door switch: OFF → ON, ON → OFF
 Driver door request switch: OFF → ON
 Passenger door request switch: OFF → ON
 Back door request switch: OFF → ON
 Back door opener switch: OFF → ON
 Stop lamp switch: ON
 Door lock and unlock switch:
NEUTRAL → LOCK, NEUTRAL → UNLOCK
 Front door lock assembly (drive r side) (door key cylinder switch):
NEUTRAL → LOCK, NEUTRAL → UNLOCK
 Remote keyless entry receiver communication: Receiving
 Front door lock assembly (driver side) (unlock sensor):
OFF →
ON, ON → OFF
Revision: 2010 May2011 QX56

BCS
DIAGNOSIS SYSTEM (BCM)BCS-15
< SYSTEM DESCRIPTION >
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DOOR LOCK
DOOR LOCK : CONSULT-III Fu
nction (BCM - DOOR LOCK)INFOID:0000000006376454
BCM CONSULT-III FUNCTION
CONSULT-III performs the following functions via CAN communication with BCM.
WORK SUPPORT
CONSULT screen item Indication/Unit Description
Vehicle Speed km/h Vehicle speed of the moment a particular DTC is detected
Odo/Trip Meter km Total mileage (Odometer value) of the moment a particular DTC is detected
Vehicle Condition SLEEP>LOCK
Power position status of
the moment a particular
DTC is detected While turning BCM status from low power consumption mode to
normal mode (Power supply position is “LOCK”)
SLEEP>OFF While turning BCM status from low power consumption mode to
normal mode (Power supply position is “OFF”.)
LOCK>ACC While turning power supply position from “LOCK” to “ACC”
ACC>ON While turning power supply position from “ACC” to “IGN”
RUN>ACC While turning power supply position
from “RUN” to “ACC” (Vehicle
is stopping and selector lever is except P position.)
CRANK>RUN While turning power su
pply position from “CRANKING” to “RUN”
(From cranking up the engine to run it)
RUN>URGENT While turning power su
pply position from “RUN“ to “ACC” (Emer-
gency stop operation)
ACC>OFF While turning power supply position from “ACC” to “OFF”
OFF>LOCK While turning power supply position from “OFF” to “LOCK”
OFF>ACC While turning power supply position from “OFF” to “ACC”
ON>CRANK While turning po wer supply position from “IGN” to “CRANKING”
OFF>SLEEP While turning BCM status from normal mode (Power supply posi-
tion is “OFF”.) to low power consumption mode
LOCK>SLEEP While turning BCM status from normal mode (Power supply posi-
tion is “LOCK”.) to low power consumption mode
LOCK Power supply position is “LOCK” (Ignition switch OFF with steer-
ing is locked.)
OFF Power supply position
is “OFF” (Ignition switch OFF with steering
is unlocked.)
ACC Power supply position is “ACC” (Ignition switch ACC)
ON Power supply position is “IGN” (Ignition switch ON with engine
stopped)
ENGINE RUN Power supply posi
tion is “RUN” (Ignition switch ON with engine
running)
CRANKING Power supply position is “CRANKING” (At engine cranking)
IGN Counter 0 - 39 The number of times that ignition switch is turned ON after DTC is detected
 The number is 0 when a malfunction is detected now.
 The number increases like 1
→ 2 → 3...38 → 39 after returning to the normal condition
whenever ignition switch OFF → ON.
 The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.
Revision: 2010 May2011 QX56

BCS
DIAGNOSIS SYSTEM (BCM)BCS-17
< SYSTEM DESCRIPTION >
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REAR WINDOW DEFOGGER : CONSULT-III
Function (BCM - REAR DEFOGGER)
INFOID:0000000006376460
Data monitor
ACTIVE TEST
BUZZER
BUZZER : CONSULT-III Function (BCM - BUZZER)INFOID:0000000006376483
CONSULT-III APPLICATION ITEMS
DATA MONITOR
ACTIVE TEST
INT LAMP
Monitor Item Description
REAR DEF SW Displays “Press (ON)/other (OFF)” status determined with the rear window defogger switch.
PUSH SW Indicates [ON/OFF] condition of push switch.
Test Item Description
REAR DEFOGGER Give a drive signal to the re ar window defogger relay to activate it.
Test item Diagnosis mode Description
BUZZER Data Monitor Displays BCM input data in real time.
Active Test Operation of electrical loads can be checked by sending driving signal to them.
Display item
[Unit] Description
PUSH SW
[On/Off] Status of push-button ignition switch judged by BCM.
UNLK SEN-DR
[On/Off] Status of unlock sensor judged by BCM.
VEH SPEED 1
[km/h] Value of vehicle speed signal received from combination meter with CAN communication line.
TAIL LAMP SW
[On/Off] Status of lighting switch judged by BCM using the combination switch readout function.
FR FOG SW
[On/Off] Status of front fog lamp switch judged by BCM using the combination switch readout function.
DOOR SW-DR
[On/Off] Status of driver side door switch judged by BCM.
CDL LOCK SW
[On/Off] Status of door lock unlock switch judged by BCM.
Display item
[Unit] Description
SEAT BELT WARN TEST The seat belt warning chime operation can be checked by operating the relevant function (On/Off).
LIGHT WARN ALM The light warning chime operation can be checked by operating the relevant function (On/Off).
Revision: 2010 May2011 QX56

BCS
DIAGNOSIS SYSTEM (BCM)BCS-19
< SYSTEM DESCRIPTION >
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ACTIVE TEST
HEADLAMP
HEADLAMP : CONSULT-III Func
tion (BCM - HEAD LAMP)INFOID:0000000006376461
WORK SUPPORT
PUSH SW
[On/Off] The switch status input from push-button ignition switch
UNLK SEN -DR
[On/Off] Driver door unlock status input from unlock sensor
DOOR SW-DR
[On/Off] The switch status input from door switch (driver side)
DOOR SW-AS
[On/Off] The switch status input from door switch (passenger side)
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
DOOR SW- BK
[On/Off] The switch status input from back door 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
KEY CYL LK-SW
[On/Off] Lock switch status received from door key cylinder switch
KEY CYL UN-SW
[On/Off] Unlock switch status received from door key cylinder switch
TRNK/HAT MNTR
[On/Off] NOTE:
The item is indicated, but not monitored.
RKE-LOCK
[On/Off] Lock signal status received from remote keyless entry receiver
RKE-UNLOCK
[On/Off] Unlock signal status received from remote keyless entry receiver
Monitor item
[Unit] Description
Test item Operation Description
INT LAMP OnOutputs the interior room lamp control signal to turn the interior room lamps ON.
[Map lamp, personal lamp, foot lamp (when applicable lamps switch is in DOOR po-
sition.)]
Off Stops the interior room lamp control signal to turn the interior room lamps 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 ON.
Service item Setting item Setting
CUSTOM A/LIGHT SETTING MODE 1*
1Normal
MODE 2 More sensitive setting than normal setting (Turns ON earlier than normal opera-
tion)
MODE 3 More sensitive setting than MODE 2 (Turns ON earlier than MODE 2)
MODE 4 Less sensitive setting than normal setting (Turns ON later than normal operation)
Revision: 2010 May2011 QX56

BCS-20
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
*1: Factory setting
*
2: For models for Canada, this item is displayed but is not operated.
DATA MONITOR
BATTERY SAVER SET On*1With the exterior lamp battery saver function
Off Without the exterior lamp battery saver function
ILL DELAY SET MODE 1*
145 sec.
Sets delay timer function timer operation time
(All doors closed)
MODE 2
Without the
function
MODE 3 30 sec.
MODE 4 60 sec.
MODE 5 90 sec.
MODE 6 120 sec.
MODE 7 150 sec.
MODE 8 180 sec.
AUTO LIGHT LOGIC SET*
2
MODE 1*1With twilight ON custom & with wiper INT, LO and HI
MODE 2 With twilight ON custom & with wiper LO and HI
MODE 3 With twilight ON custom & without
MODE 4 Without twilight ON custom & with wiper INT, LO and HI
MODE 5 Without twilight ON custom & with wiper LO and HI
MODE 6 Without twilight ON custom & without
Service item Setting item Setting
Monitor item
[Unit] Description
PUSH SW
[On/Off] The switch status input from push-button ignition switch
ENGINE STATE
[Stop/Stall/Crank/Run] The engine status received from ECM via CAN communication
VEH SPEED 1
[km/h] The value of the vehicle speed received from combination meter via CAN communi-
cation
TURN SIGNAL R
[On/Off]
Each switch status that BCM judges from the combination switch reading function
TURN SIGNAL L
[On/Off]
TA I L L A M P S W
[On/Off]
HI BEAM SW
[On/Off]
HEAD LAMP SW1
[On/Off]
HEAD LAMP SW2
[On/Off]
PASSING SW
[On/Off]
AUTO LIGHT SW
[On/Off]
FR FOG SW
[On/Off]
RR FOG SW
[On/Off]
NOTE:
This item is indicated, but can not monitored
Revision: 2010 May2011 QX56

BCS-22
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
*1:The item is indicated, but not operated
*2:Factory setting
DATA MONITOR
ACTIVE TEST
Service item Setting item Description
WIPER SPEED
SETTING*
1
On With vehicle speed
(Front wiper intermittent time linked with the vehicle speed and wip-
er intermittent dial position)
The setting of front wip-
er INT operation can be
changed
Off Without vehicle speed
(Front wiper intermittent
time linked with the wiper intermittent dial
position)
RAIN SEN WIP
FUNC SET On*
2With rain sensor
(Front wiper intermittent time linked with the rain sensor, vehicle
speed, and AUTO dial position)
The setting of front wip-
er AUTO operation can
be changed
Off Without rain sensor
(Front wiper intermittent time linked with the vehicle speed and
AUTO dial position)
DROP WIPE
FUNC SET*
1
MODE1 Front wiper and rear wiper OFF The setting of drop wipe
operation can be
changed
MODE2*
2Front wiper ON and rear wiper OFF
MODE3 Front wiper OFF and rear wiper ON
MODE4 Front wiper and rear wiper ON
Monitor Item [Unit] Description
PUSH SW
[Off/On] The switch status input from push-button ignition switch.
VEH SPEED 1
[km/h] Displays the value of the vehicle speed signal received from combination meter via CAN com-
munication.
FR WIPER HI
[Off/On]
Status of each switch judged by BCM using the combination switch reading function
FR WIPER LOW
[Off/On]
FR WASHER SW
[Off/On]
FR WIPER INT
[Off/On]
FR WIPER STOP
[Off/On]
Displays the status of the front wiper stop position signal received from IPDM E/R via CAN
communication.
INT VOLUME
[1 − 7] Status of each switch judged by BCM using the combination switch reading function
RR WIPER ON
[Off/On] Status of each switch judged by BCM using the combination switch reading function
RR WIPER INT
[Off/On]
RR WASHER SW
[Off/On]
RR WIPER STOP
[Off/On] Rear wiper motor (stop position) status input from the rear wiper motor
H/L WASH SW
[Off/On] NOTE:
This item is indicated, but not monitored
RAIN SENSOR
[OFF/LOW/HIGH/SPLASH/NG] Request signal from rain sensor detected by BCM is displayed
Revision: 2010 May2011 QX56

BCS
DIAGNOSIS SYSTEM (BCM)BCS-23
< SYSTEM DESCRIPTION >
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FLASHER
FLASHER : CONSULT-III F
unction (BCM - FLASHER)INFOID:0000000006376462
WORK SUPPORT
*: Factory setting
DATA MONITOR
ACTIVE TEST
Test item Operation Description
FR WIPER Hi
Transmits the front wiper request signal (HI) to IPDM E/R via CAN communication to op-
erate the front wiper HI operation.
Lo Transmits the front wiper request signal (LO) to IPDM E/R via CAN communication to
operate the front wiper LO operation.
INT Transmits the front wiper request signal (INT) to IPDM E/R via CAN communication to
operate the front wiper INT operation.
Off Stops transmitting the front wiper request signal to stop the front wiper operation.
RR WIPER On Output the voltage to operate the rear wiper motor.
Off Stops the voltage to stop the rear wiper motor.
HEADLAMP WASH-
ER On
Transmits the headlamp washer request signal to IPDM E/R via CAN communication to
operate the headlamp washer operation.
Service item Setting item Setting
HAZARD ANSWER
BACK Lock Only With locking only
Sets the hazard warning lamp answer back function
when the door is lock/unlock with the request switch or
the key fob.
Unlk Only With unlocking only
Lock&Unlk
*With locking/unlocking
Off Without the function
Monitor item [Unit] Description
REQ SW-DR
[On/Off] The switch status input from the request switch (driver side)
REQ SW-AS
[On/Off] The switch status input from the request switch (passenger side)
PUSH SW
[On/Off] The switch status input from the push-button ignition switch
TURN SIGNAL R
[On/Off] Each switch status that BCM detects from the combination switch reading function
TURN SIGNAL L
[On/Off]
HAZARD SW
[On/Off] The switch status input from the hazard switch
RKE-LOCK
[On/Off] Lock signal status received from the remote keyless entry receiver
RKE-UNLOCK
[On/Off] Unlock signal status received from the remote keyless entry receiver
RKE-PANIC
[On/Off] Panic alarm signal status received from the remote keyless entry receiver
Revision: 2010 May2011 QX56