door INFINITI QX56 2011 Factory Manual PDF

BCS-10
< SYSTEM DESCRIPTION >
SYSTEM
NOTE:
For details of wiper volume dial position, refer to WW-7, "
FRONT WIPER AND WASHER SYSTEM : System Description".
SIGNAL BUFFER SYSTEM
SIGNAL BUFFER SYSTEM : System DiagramINFOID:0000000006274792
SIGNAL BUFFER SYSTEM : System DescriptionINFOID:0000000006274793
OUTLINE
BCM has the signal transmission function that output s/transmits each input/received signal to each unit.
Signal transmission function list
6 OFF ON ON
7 OFF ON OFF
Wiper volume
dial position Switch status
WIP VOLUME 1 WIP VOLUME 2 WIP VOLUME 3
JMMIA0381GB
Signal name Input Output Description
 Ignition switch ON signal
 Ignition switch signal Push-button ignition switch
(Push switch) IPDM E/R (CAN)
 Driver seat control unit (CAN)
 Pre-crash seat
belt control
unit (CAN) Inputs the push-button ignition
switch (push switch) signal and
transmits the ignition switch sta-
tus judged with BCM via CAN
communication.
Door switch signal Any door switch  Combination meter (CAN)
 IPDM E/R (CAN)
 Driver seat control unit (CAN)
 Pre-crash seat
belt control
unit (CAN) Inputs the door switch signal
and transmits it via CAN com-
munication.
Oil pressure switch signal IPDM E/R (CAN) Combination meter (CAN) Transmits the received oil pres-
sure switch signal via CAN
communication.
Revision: 2010 May2011 QX56

BCS
SYSTEMBCS-11
< SYSTEM DESCRIPTION >
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POWER CONSUMPTION CONTROL SYSTEM
POWER CONSUMPTION CONTRO
L SYSTEM : System DiagramINFOID:0000000006274794
POWER CONSUMPTION CONTROL SYSTEM : System DescriptionINFOID:0000000006274795
OUTLINE
 BCM incorporates a power saving control function t hat 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 (IPDM E/R, combination meter, dr iver seat control unit, automatic back door control
module, pre-crash seat belt control unit and CAN gat eway) 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
Stop lamp switch signal Stop lamp switch TCM (CAN) Inputs the stop lamp switch 1
signal and stop lamp switch 2
signal, and transmits it via CAN
communication.
Low tire pressure warning lamp
signal Low tire pressu
re warning con-
trol unit Combination meter (CAN)Transmits the received low tire
pressure warning signal via
CAN communication.
Buzzer request signal Low tire pressu
re warning con-
trol unit Combination meter (CAN)Transmits the received buzzer
request signal via CAN commu-
nication.
Horn request signal Low tire pressu
re warning con-
trol unit IPDM E/R (CAN)Received the horn request sig-
nal, transmits the horn reminder
signal via CAN communication.
Signal name Input Output Description
JMMIA0382GB
Revision: 2010 May2011 QX56

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-14
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)INFOID:0000000006274796
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.
×: Applicable item
*: This item is indicated, but not used.
FREEZE FRAME DATA (FFD)
The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT-III.
Diagnosis mode Function Description
Work Support Changes the setting for each system function.
Self Diagnostic Result Displays the diagnosis results judged by BCM. Refer to BCS-57, "
DTCIndex".
CAN Diag Support Monitor Monitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.
Data Monitor The BCM input/output signals are displayed.
Active Test The signals used to activate ea ch device are forcibly supplied from BCM.
Ecu Identification The BCM part number is displayed.
Configuration  Read and save the vehicle specification.
 Write the vehicle specification when replacing BCM.
System Sub system selection item Diagnosis mode
Work Support Data Monitor Active Test
Door lock DOOR LOCK ×××
Rear window defogger REAR DEFOGGER ××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ×××
— AIR CONDITONER* ××
 Intelligent Key system
 Engine start system INTELLIGENT KEY
×××
Combination switch COMB SW ×
Body control system BCM ×
IVIS IMMU ×××
Interior room lamp battery saver BATTERY SAVER ×××
Back door TRUNK ×
Vehicle security system THEFT ALM ×××
RAP system RETAINED PWR ×
Signal buffer system SIGNAL BUFFER ××
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-16
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
DATA MONITOR
ACTIVE TEST
REAR WINDOW DEFOGGER
Monitor item Description
DOOR LOCK-UNLOCK SET Selective unlock function mode can be changed to operation with this mode
 On: Operate
 Off: Non-operation
AUTOMATIC DOOR LOCK SE-
LECT Automatic door lock function mode can be se
lected from the following in this mode
 VH SPD: All doors are locked when vehicle speed more than 24 km/h (15 MPH)
 P RANGE: All doors are locked when shifting the selector lever from P position to other than the P position
AUTOMATIC DOOR UNLOCK
SELECT Automatic door unlock function mode can be
selected from the following in this mode
 MODE 1: All doors are unlocked when the power supply position is changed from ON to OFF
 MODE 2: All doors are unlocked when shifting the selector lever from any position other
than the P to P position
 MODE 3: Driver side door is unlocked when the power supply position is changed from ON to OFF
 MODE 4: Driver side door is unlocked when shifting the selector lever from any position oth- er than the P to P position
 MODE 5: This item is displayed, but cannot be used
 MODE 6: This item is displayed, but cannot be used
AUTOMATIC LOCK/UNLOCK
SET Automatic door lock/unlock function mode can be selected from the following in this mode
 Off: Non-operation
 Unlock Only: Door unlock operation only
 Lock Only: Door lock operation only
 Lock/Unlock: Lock and unlock operation
Monitor Item Contents
REQ SW-DR Indicated [On/Off] condition of door request switch (driver side)
REQ SW-AS Indicated [On/Off] condition of door request switch (passenger side)
REQ SW-BD/TR Indicated [On/Off] condition of back door request switch
DOOR SW-DR Indicated [On/Off] condition of front door switch (driver side)
DOOR SW-AS Indicated [On/Off] condition of front door switch (passenger side)
DOOR SW-RR Indicated [On/Off] condition of rear door switch RH
DOOR SW-RL Indicated [On/Off] condition of rear door switch LH
DOOR SW-BK Indicated [On/Off] condition of back door switch
CDL LOCK SW Indicated [On/Off] condition of lock signal from door lock unlock switch
CDL UNLOCK SW Indicated [On/Off] condition of unlock signal from door lock unlock switch
KEY CYL LK-SW Indicated [On/Off] condition of lock signal from door key cylinder switch
KEY CYL UN-SW Indicated [On/Off] condition of unlock signal from door key cylinder switch
Te s t i t e m D e s c r i p t i o n
DOOR LOCK This test is able to check door lock/unlock operation
 The all door lock actuators are locked when “ALL LOCK” on CONSULT-III screen is touched
 The all door lock actuators are unlocked when “ALL UNLK” on CONSULT-III screen is touched
 The front door lock actuator (driver side) is unlocked when “DR UNLK” on CONSULT-III screen
is touched
 The front door lock actuator (passenger side) is unlocked when “AS UNLK” on CONSULT- III screen is touched
 The door lock actuator (other) is unlocked wh en “OTR ULK” on CONSULT-III screen is touched
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-18
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
INT LAMP : CONSULT-III Fu nction (BCM - INT LAMP)
INFOID:0000000006376481
WORK SUPPORT
DATA MONITOR
JMLIA0961GB
Service 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 TIMER SET MODE 2 7.5 sec.
Sets the interior room lamp ON time. (Timer operating time)
MODE 3* 15 sec.
MODE 4 30 sec.
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.
MODE 6* Gradually brightens from 0% to 100% brightness in 1 second.
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.
MODE 6* Gradually dims from 100% to 0% in 1 second.
R LAMP TIMER LOGIC SET MODE 1* Interior room lamp timer activates with synchronizing all doors.
MODE 2 Interior room lamp timer activates with synchronizing the driver door only.
Monitor item
[Unit] Description
REQ SW-DR
[On/Off] The switch status input from door request switch (driver side)
REQ SW-AS
[On/Off] The switch status input from door request switch (passenger side)
REQ SW-RR
[On/Off] NOTE:
The item is indicated, but not monitored.
REQ SW-RL
[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