headlamp INFINITI QX56 2011 Factory Service Manual

BCS
BCS-1
ELECTRICAL & POWER CONTROL
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SECTION BCS
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CONTENTS
BODY CONTROL SYSTEM
PRECAUTION ................
...............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
SYSTEM DESCRIPTION ..............................4
COMPONENT PARTS ................................... .....4
BODY CONTROL SYSTEM ........................................4
BODY CONTROL SYSTEM : Component Parts
Location ............................................................... ......
4
POWER CONSUMPTION CONTROL SYSTEM ... ......4
POWER CONSUMPTION CONTROL SYSTEM :
Component Parts Location ........................................
4
SYSTEM ..............................................................6
BODY CONTROL SYSTEM ........................................6
BODY CONTROL SYSTEM : System Description ......6
COMBINATION SWITCH READING SYSTEM ..... ......7
COMBINATION SWITCH READING SYSTEM :
System Diagram ........................................................
7
COMBINATION SWITCH READING SYSTEM :
System Description ...................................................
7
SIGNAL BUFFER SYSTEM ........................ ..............10
SIGNAL BUFFER SYSTEM : System Diagram .. ....10
SIGNAL BUFFER SYSTEM : System Description ....10
POWER CONSUMPTION CONTROL SYSTEM ... ....11
POWER CONSUMPTION CONTROL SYSTEM :
System Diagram ......................................................
11
POWER CONSUMPTION CONTROL SYSTEM :
System Description .................................................
11
DIAGNOSIS SYSTEM (BCM) ............................14
COMMON ITEM ..................................................... ....14
COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) .....................................................
14
DOOR LOCK .......................................................... ....15
DOOR LOCK : CONSULT-III Function (BCM -
DOOR LOCK) ..........................................................
15
REAR WINDOW DEFOGGER ............................... ....16
REAR WINDOW DEFOGGER : CONSULT-III
Function (BCM - REAR DEFOGGER) .....................
17
BUZZER ................................................................. ....17
BUZZER : CONSULT-III Function (BCM - BUZZ-
ER) ..........................................................................
17
INT LAMP ............................................................... ....17
INT LAMP : CONSULT-III Function (BCM - INT
LAMP) ......................................................................
18
HEADLAMP ........................................................... ....19
HEADLAMP : CONSULT-III Function (BCM -
HEAD LAMP) ...........................................................
19
WIPER .................................................................... ....21
WIPER : CONSULT-III Function (BCM - WIPER) ....21
FLASHER ............................................................... ....23
FLASHER : CONSULT-III Function (BCM -
FLASHER) ...............................................................
23
INTELLIGENT KEY ................................................ ....24
INTELLIGENT KEY : CONSULT-III Function
(BCM - INTELLIGENT KEY) ....................................
24
COMB SW .............................................................. ....27
COMB SW : CONSULT-III Function (BCM -
COMB SW) ..............................................................
27
BCM ....................................................................... ....28
BCM : CONSULT-III Function (BCM - BCM) ...........28
IMMU ...................................................................... ....28
IMMU : CONSULT-III Function (BCM - IMMU) ........28
Revision: 2010 May2011 QX56

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-13
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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-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
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

BCS
DIAGNOSIS SYSTEM (BCM)BCS-23
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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

BCS-28
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
BCM
BCM : CONSULT-III Function (BCM - BCM)INFOID:0000000006274811
WORK SUPPORT
IMMU
IMMU : CONSULT-III Function (BCM - IMMU)INFOID:0000000006376458
DATA MONITOR
ACTIVE TEST
TURN SIGNAL R
[Off/On]Displays the status of
the TURN RH switch in combination switch ju dged by BCM with the combination switch
reading function.
TURN SIGNAL L
[Off/On] Displays the status of
the TURN LH switch in combin ation switch judged by BCM with th e combination switch
reading function.
TAIL LAMP SW
[Off/On] Displays the status of the TAIL LAMP switch in combination switch judged by BCM with the combination
switch reading function.
HI BEAM SW
[Off/On] Displays the status of the HI BEAM switch in combination switch judged by BCM with the combination switch
reading function.
HEAD LAMP SW 1
[Off/On] Displays the status of the HEADLAMP 1 switch in combination switch judged by BCM with the combination
switch reading function.
HEAD LAMP SW 2
[Off/On] Displays the status of the HEADLAMP 2 switch in combination switch judged by BCM with the combination
switch reading function.
PASSING SW
[Off/On] Displays the status of the PASSING sw
itch in combination switch judged by BCM with the combination switch
reading function.
AUTO LIGHT SW
[Off/On] Displays the status of the AUTO LIGHT switch in combination switch judged by BCM with the combination
switch reading function.
FR FOG SW
[Off/On] Displays the status of the FR FOG switch in combination switch judged by BCM with the combination switch
reading function.
RR FOG SW
[Off/On] NOTE:
The item is indicated, but not monitored.
Monitor item [
UNIT] Description
Item Description
RESET SETTING VALUE Return a value set wi th Work Support of each system to a default value in factory shipment.
Monitor item Content
CONFRM ID ALL
Indicates [YET] at all time.
Switches to [DONE] when a registered Intelligent Key backside is contacted to push-button ignition
switch.
CONFIRM ID4
CONFIRM ID3
CONFIRM ID2
CONFIRM ID1
NOT REGISTERED
Indicates [ID OK] when key ID that is registered is received or is not yet received.
Indicates [ID NG] when key ID that is not registered is received.
TP 4
Indicates the number of IDs that are registered.
TP 3
TP 2
TP 1
PUSH SW Indicates [ON/OFF] condition of push-button ignition switch.
Revision: 2010 May2011 QX56

BCS
DIAGNOSIS SYSTEM (BCM)BCS-31
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WORK SUPPORT
ACTIVE TEST
RETAIND PWR
RETAIND PWR : CONSULT-III F
unction (BCM - RETAINED PWR)INFOID:0000000006376459
Data monitor
SIGNAL BUFFER
SIGNAL BUFFER : CONSULT-III F unction (BCM - SIGNAL BUFFER)INFOID:0000000006274818
DATA MONITOR
DOOR SW-RL Indicates [ON/OFF] condition of rear door switch LH.
DOOR SW-BK Indicates [ON/OFF] condition of back door switch.
CDL LOCK SW Indicates [ON/OFF] condition of lock signal from door lock/unlock switch LH and RH.
CDL UNLOCK SW Indicates [ON/OFF] condition of unlock signal from door lock/unlock switch LH and RH.
KEY CYL LK-SW Indicates [ON/OFF] condition of lock signal from door key cylinder.
KEY CYL UN-SW Indicates [ON/OFF] condition of unlock signal from door key cylinder.
TR/BD OPEN SW Indicates [ON/OFF] condition of back door opener switch.
TRNK/HAT MNTR NOTE:
This item is displayed, but cannot be monitored.
RKE-LOCK Indicates [ON/OFF] condition of LOCK signal from Intelligent Key.
RKE-UNLOCK Indicates [ON/OFF] condition of UNLOCK signal from Intelligent Key.
RKE-TR/BD NOTE:
This item is displayed, but cannot be monitored.
Monitored Item Description
Service Item Description
SECURITY ALARM SET This mode is able to confirm and change security alarm ON-OFF setting.
THEFT ALM TRG The switch which triggered vehicle security alarm is recorded.
This mode is able to confirm and erase the record of vehicle security alarm.
The trigger data can be erased by touching “CLEAR” on CONSULT-III screen.
Test Item Description
THEFT IND This test is able to check security indicator lamp operation. Security indicator lamp is turned on
when “ON” on CONSULT-III screen is touched.
VEHICLE SECURITY HORN This test is able to check horn operation. Horn is activated for 0.5 seconds after “ON” on CONSULT-
III screen is touched.
HEADLAMP(HI) This test is able to check headlamp operation. Headlamps are activated for 0.5 seconds after “ON”
on CONSULT-III screen is touched.
FLASHER This test is able to check hazard warning lamp operation. Hazard warning lamps are activated after
“ON” on CONSULT-III screen is touched.
Monitor Item Description
DOOR SW-DR Indicates [ON/OFF] condition of driver side door switch.
DOOR SW-AS Indicates [ON/OFF] condition of passenger side door switch.
Monitor item [UNIT] Description
PUSH SW
[Off/On] Displays the status of the push-button ignition switch (push switch) judged by BCM.
Revision: 2010 May2011 QX56