turn signal INFINITI QX56 2011 Factory Owners Manual

BCS-6
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
BODY CONTROL SYSTEM
BODY CONTROL SYSTEM : System DescriptionINFOID:0000000006274789
OUTLINE
 BCM (Body Control Module) controls the various electrical components. It inputs the information required to
the control from CAN communication and the signal 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 saving con-
trol function that reduces the power c onsumption 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 Reference
Combination switch reading system BCS-7, "
COMBINATION SWITCH READING SYSTEM : System
Diagram"
Signal buffer system
BCS-10, "SIGNAL BUFFER SYSTEM : System Diagram"
Power consumption control systemBCS-11, "POWER CONSUMPTION CONTROL SYSTEM : Sys-
tem Diagram"
Auto light system
EXL-11, "AUTO LIGHT SYSTEM : System Diagram"
Turn signal and hazard warning lamp systemEXL-18, "TURN SIGNAL AND HAZARD WARNING LAMP SYS-
TEM : System Diagram"
Headlamp system
EXL-10, "HEADLAMP SYSTEM : System Diagram"
Daytime running light systemEXL-14, "DAYTIME RUNNING LIGHT SYSTEM : System Dia-
gram"
Parking, license plate, side maker and tail lamps system
EXL-18, "PARKING, LICENSE PLATE, SIDE MARKER AND
TAIL LAMP SYSTEM : System Diagram"
Front fog lamp system
EXL-20, "FRONT FOG LAMP SYSTEM : System Diagram"
Exterior lamp battery saver systemEXL-20, "EXTERIOR LAMP BATTERY SAVER SYSTEM : Sys-
tem Diagram"
Interior room la
mp control system INL-6, "INTERIOR ROOM LAMP CONTROL SYSTEM : System
Diagram"
Interior room lamp battery saver system
INL-9, "INTERIOR ROOM LAMP BATTERY SAVER SYSTEM :
System Diagram"
Front wiper and washer systemWW-7, "FRONT WIPER AND WASHER SYSTEM : System Dia-
gram"
Rear wiper and washer systemWW-10, "REAR WIPER AND WASHER SYSTEM : System Dia-
gram"
Headlamp washer system
WW-13, "HEADLAMP WASHER SYSTEM : System Diagram"
Warning chime systemWCS-6, "WARNING CHIME SYSTEM : System Diagram"
Power door lock systemDLK-16, "System Diagram"
Infiniti Vehicle immobilizer System (IVIS)SEC-15, "INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS :
System Diagram"
Vehicle security systemTheft warning alarm
SEC-17, "VEHICLE SECURITY SYSTEM : System Diagram"Panic alarm
Rear window defogger system DEF-6, "
System Diagram"
Intelligent Key system/engine start systemDLK-18, "INTELLIGENT KEY SYSTEM : System Diagram"
Power window system PWC-8, "SystemDiagram"
Retained accessory power (RAP) systemPWC-8, "System Description"
Revision: 2010 May2011 QX56

BCS
SYSTEMBCS-7
< SYSTEM DESCRIPTION >
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COMBINATION SWITCH READING SYSTEM
COMBINATION SWITCH READING SYSTEM : System DiagramINFOID:0000000006274790
NOTE:
*: TAIL LAMP switch links lighting switch 1ST and 2ND positions.
COMBINATION SWITCH READING S
YSTEM : System DescriptionINFOID:0000000006274791
OUTLINE
 BCM reads the status of the combination switch (light, turn signal, wiper and washer) and recognizes the
status of each switch.
 BCM has a combination of 5 output terminals (OUTPUT 1 - 5) and 5 input terminals (INPUT 1 - 5). It reads a
maximum of 20 switch status.
COMBINATION SWITCH MATRIX
Combination switch circuit
NOTE:
*: TAIL LAMP switch links lighting switch 1ST and 2ND positions.
Combination switch INPUT-OUTPUT system list
JMMIA0499GB
JMMIA0500GB
System INPUT 1 INPUT 2 INP UT 3 INPUT 4 INPUT 5
OUTPUT 1 — FR WASHER FR WIPER LOW TURN LH TURN RH
OUTPUT 2 FR WIPER HI — FR WIPER AUTO PASSING HEADLAMP 1
Revision: 2010 May2011 QX56

BCS-8
< SYSTEM DESCRIPTION >
SYSTEM
NOTE:
Headlamp has a dual system switch.
COMBINATION SWITCH READING FUNCTION
Description
 BCM reads the status of the combination switch at 10 ms interval normally.NOTE:
BCM reads the status of the combination switch at 60 ms interval when BCM is controlled at low power con-
sumption control mode.
 BCM operates as follows and judges the status of the combination switch.
- It operates the transistor on OUTPUT side in the following order: OUTPUT 1 → 2 → 3 → 4 → 5, and outputs
voltage waveform.
- The voltage waveform of OUTPUT corresponding to the formed circuit is input into the interface on INPUT
side if any (1 or more) switches are ON.
- It reads this change of the voltage as the status signal of the combination switch.
Operation Example
In the following operation example, the combination of t he status signals of the combination switch is replaced
as follows: INPUT 1 - 5 to “1 - 5” and OUTPUT 1 - 5 to “A - E”.
Example 1: When a switch (TAIL LAMP switch) is turned ON
OUTPUT 3 WIP VOLUME 1 RR WASHER — HEADLAMP 2 HI BEAM
OUTPUT 4 RR WIPER INT WIP VOLUME 3 AUTO LIGHT — TAIL LAMP
OUTPUT 5 WIP VOLUME 2 RR WIPER ON RR FOG FR FOG — System INPUT 1 INPUT 2 INPUT 3 INPUT 4 INPUT 5
JPMIA0609GB
JMMIA0326GB
Revision: 2010 May2011 QX56

BCS
SYSTEMBCS-9
< SYSTEM DESCRIPTION >
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 The circuit between OUTPUT 4 and INPUT 5 is formed when the TAIL LAMP switch is turned ON.
 BCM detects the combination switch status signal “5
D” when the signal of OUTPUT 4 is input to INPUT 5.
 BCM judges that the TAIL LAMP switch is ON when the signal “5D” is detected.
Example 2: When some switches (TURN RH s witch, TAIL LAMP switch) are turned ON
 The circuits between OUTPUT 1 and INPUT 5 and bet ween OUTPUT 4 and INPUT 5 are formed when the
TURN RH switch and TAIL LAMP switch are turned ON.
 BCM detects the combination switch status signal “5AD” when the signals of OUTPUT 1 and OUTPUT 4 are
input to INPUT 5.
 BCM judges that the TURN RH switch and TAIL LAMP switch are ON when the signal “5AD” is detected.
WIPER VOLUME DIAL POSITION
BCM judges the wiper volume dial 1 - 7 by the status of WIP VOLUME 1, 2 and 3 switches.
JMMIA0501GB
JMMIA0502GB
Wiper volume
dial position Switch status
WIP VOLUME 1 WIP VOLUME 2 WIP VOLUME 3
1 ONONON
2ONONOFF
3ONOFFOFF
4 OFF OFF OFF
5OFFOFFON
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-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
DIAGNOSIS SYSTEM (BCM)BCS-21
< SYSTEM DESCRIPTION >
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ACTIVE TEST
*: Only models for Canada display this item.
WIPER
WIPER : CONSULT-III Function (BCM - WIPER)INFOID:0000000006376469
WORK SUPPORT
DOOR SW-DR
[On/Off]
The switch status input from front door switch (driver side)
DOOR SW-AS
[On/Off] The switch status input from front 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
OPTICAL SENSOR
[On/Off] The sensor status input from optical sensor
OPTI SEN (DTCT)
[V] The value of outside brightness voltage input from the optical sensor
OPTI SEN (FILT)
[V] The value of outside brightness voltage filtered by BCM
Monitor item
[Unit] Description
Test item Operation Description
TAIL LAMP On
Transmits the position light request signal to IPDM E/R via CAN commu-
nication to turn the tail lamp ON
Off Stops the tail lamp request signal transmission
HEAD LAMP Hi
Transmits the high beam request signal via CAN communication to turn
the headlamp (HI)
Lo Transmits the low beam request signal via 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 via CAN com-
munication to turn the front fog lamp ON
Off Stops the front light request signal transmission
RR FOG LAMP On
NOTE:
This item is indicated, but can not tested
Off
DAYTIME RUNNING LIGHT* On
Transmits the front fog lights request signal to IPDM E/R via CAN com-
munication to turn the front fog lamp ON (daytime running light system)
Off Stops the front light request signal transmission (daytime running light
system)
ILL DIM SIGNAL On Transmits the dimmer signal to combination meter via CAN communi-
cation and dims combination meter
 Transmits the dimmer signal to AV control unit and dims display
Off Stops the dimmer signal transmission
Revision: 2010 May2011 QX56