
BCS
BODY CONTROL SYSTEM
BCS-7
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L B A
O
P N
Component Parts LocationINFOID:0000000003809585
Intelligent Key system/engine start systemDoor lock function
DLK-14, "INTELLIGENT KEY SYSTEM : System Diagram"
Trunk open function
Remote keyless entry
function
Key reminder function
Warning function
Engine start function
Power window systemPWC-7, "
SystemDiagram"
System Reference
1. BCM
A. Behind of combination meter
JPMIA1040ZZ

BCS-12
< FUNCTION DIAGNOSIS >
SIGNAL BUFFER SYSTEM
SIGNAL BUFFER SYSTEM
System DiagramINFOID:0000000003809589
System DescriptionINFOID:0000000003809590
OUTLINE
BCM has the signal transmission function that outputs/transmits each input/received signal to each unit.
Signal transmission function list
JPMIA1045GB
Signal name Input Output Description
Ignition switch ON signal
Ignition switch signalPush-button ignition switch
(push switch) IPDM E/R (CAN)
Driver seat 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)
AV control unit (CAN)Inputs the door switch signal
and transmits it via CAN com-
munication.
Trunk switch signal Trunk room lamp switch Combination meter (CAN)
AV control unit (CAN)Inputs the trunk room lamp
switch signal and transmits the
trunk switch signal via CAN
communication.
Oil pressure switch signal IPDM E/R (CAN) Combination meter (CAN)Transmits the received oil pres-
sure switch signal via CAN
communication.
Stop lamp switch signal Stop lamp switch TCM (CAN)Inputs the stop lamp switch sig-
nal and transmits it via CAN
communication.

BCS-14
< FUNCTION DIAGNOSIS >
POWER CONSUMPTION CONTROL SYSTEM
Sleep condition
Wake-up operation
BCM changes from the low power consumption mode to the CAN communication sleep mode when the any
of the BCM wake-up conditions is fulfilled. Only the control with BCM is activated.
BCM transmits the sleep wake up signal (wake up) to each unit when any of the CAN wake-up conditions is
fulfilled. It changes from the low power consumption mode or the CAN communication sleep mode to the
normal mode.
Each unit starts the transmission of CAN communication with the sleep wake up signal. In addition, the com-
bination meter transmits the wake up signal to BCM via CAN communication to report the CAN communica-
tion start.
Wake-up condition
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
Trunk room lamp switch status: No change
Stop lamp switch: OFF
Key slot (card switch) status: No change
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 Interior room lamp battery saver: Time out
Push-button ignition switch illumination: OFF
Nissan Vehicle Immobilizer System (NVIS) - NATS: Not opera-
tion
Remote keyless entry receiver communication status: No com-
munication
ACC indicator lamp: Not operation
ON indicator lamp: Not operation
BCM wake-up condition CAN wake-up condition
Trunk lid opener switch: OFF → ON
Remote keyless entry receiver: Receiving
Door lock and unlock switch:
NEUTRAL → LOCK, NEUTRAL → UNLOCK
Front door lock assembly driver side (unlock sensor):
OFF → ON, ON → OFF Receiving the sleep-ready signal (Not-ready) from any units
Key slot (key switch): OFF → ON, ON → OFF
Push-button ignition switch (push switch): OFF→ ON
Hazard switch: OFF → ON
PASSING switch: OFF → ON, ON → OFF
TAIL LAMP switch: OFF → ON
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
Trunk room lamp switch: OFF → ON, ON → OFF
Driver door request switch: OFF → ON
Passenger door request switch: OFF → ON
Trunk lid request switch: OFF → ON
Stop lamp switch: ON

BCS-16
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)INFOID:0000000003809594
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
NOTE:
*: This item is displayed, but is not used.
FREEZE FRAME DATA (FFD) AND IGN COUNTER
Freeze Frame Data
Diagnosis mode Function Description
Work Support Changes the setting for each system function.
Self Diagnostic Result Displays the diagnosis results judged by BCM.
CAN Diag Support MonitorMonitors 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 each 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 itemDiagnosis 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 systemINTELLIGENT KEY×××
Combination switch COMB SW×
Body control system BCM×
NVIS - NATS IMMU××
Interior room lamp battery saver BATTERY SAVER×××
Trunk lid opener system TRUNK××
Vehicle security system THEFT ALM×××
— RETAINED PWR*×
Signal buffer system SIGNAL BUFFER××
— TPMS (AIR PRESSURE MONITOR)*×××

BCS-18
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
DATA MONITOR
ACTIVE TEST
REAR WINDOW DEFOGGER
REAR WINDOW DEFOGGER : CONSULT-III Function (BCM - REAR DEFOGGER)
INFOID:0000000003897058
Data monitor
ACTIVE TEST
BUZZER
Monitor item Description
DOOR LOCK-UNLOCK SETSelective unlock function mode can be changed to operate (WITH) or not operate (WITHOUT) with
this mode.
Monitor Item Contents
REQ SW-DR Indicates [ON/OFF] condition of door request switch (driver side).
REQ SW-AS Indicates [ON/OFF] condition of door request switch (passenger side).
REQ SW-BD/TR Indicates [ON/OFF] condition of trunk lid opener request switch.
DOOR SW-DR Indicates [ON/OFF] condition of front door switch (driver side).
DOOR SW-AS Indicates [ON/OFF] condition of front door switch (passenger side).
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-BKNOTE:
This item is displayed, but cannot be monitored.
CDL LOCK SW Indicates [ON/OFF] condition of lock signal from door lock unlock switch.
CDL UNLOCK SW Indicates [ON/OFF] condition of unlock signal from door lock unlock switch.
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.
Te s t i t e m D e s c r i p t i o n
DOOR LOCKThis test is able to check door lock/unlock operation.
The all door lock actuators are locked when “ALL LCK” on CONSULT-III screen is touched.
The all door lock actuators are unlocked when “ALL UNLK” on CONSULT-III screen is touched.
The door lock actuator (driver side) is unlocked when “DR UNLK” on CONSULT-III screen is
touched.
The door lock actuator (passenger side) is unlocked when “AS UNLK” on CONSULT- III screen
is touched.
The door lock actuator (rear LH and RH) is unlocked when “OTR ULK” on CONSULT-III screen
is touched.
Monitor Item Description
REAR DEF SW Without AV control unit: Displays “Press (ON)/other (OFF)” status determined with the rear win-
dow defogger switch
With AV control unit: This is displayed even when it is not equipped
PUSH SW Indicates [ON/OFF] condition of push switch
Test Item Description
REAR DEFOGGERThis test is able to check rear window defogger operation. Rear window defogger operates when
“ON” on CONSULT-III screen is touched

BCS
DIAGNOSIS SYSTEM (BCM)
BCS-21
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L B A
O
P N
ACTIVE TEST
HEADLAMP
HEADLAMP : CONSULT-III Function (BCM - HEAD LAMP)INFOID:0000000003897061
WORK SUPPORT
*: Factory setting
DATA MONITOR
TRNK/HAT MNTR
[On/Off]The switch status input from trunk room lamp switch
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 LAMPOnOutputs the interior room lamp control signal to turn map lamp and personal lamp ON
(Map lamp switch is in DOOR position).
Off Stops the interior room lamp control signal to turn map lamp and personal lamp OFF.
STEP LAMP TESTOn Outputs the step lamp control signal to turn step lamp ON.
Off Stops the step lamp control signal to turn step lamp OFF.
LUGGAGE LAMP TESTOn Outputs the trunk room lamp control signal to turn trunk room lamp ON.
Off Stops the trunk room lamp control signal to turn trunk room lamp OFF.
Service item Setting item Setting
BATTERY SAVER SETOn* With the exterior lamp battery saver function
Off Without the exterior lamp battery saver function
ILL DELAY SETMODE 1* 45 sec.
Sets delay timer function timer operation time.
(All doors closed) MODE 2Without the func-
tion
MODE 3 30 sec.
MODE 4 60 sec.
MODE 5 90 sec.
MODE 6 120 sec.
MODE 7 150 sec.
MODE 8 180 sec.
CUSTOM A/LIGHT SET-
TINGMODE 1* Normal
MODE 2 More sensitive setting than normal setting (Turns ON earlier than normal operation.)
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.)
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 with CAN communication

BCS
DIAGNOSIS SYSTEM (BCM)
BCS-25
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L B A
O
P N
INTELLIGENT KEY
INTELLIGENT KEY : CONSULT-III Function (BCM - INTELLIGENT KEY)INFOID:0000000003897053
BCM CONSULT-III FUNCTION
CONSULT-III performs the following functions via CAN communication with BCM.
WORK SUPPORT
Diagnosis mode Function Description
WORK SUPPORT Changes the setting for each system function.
SELF-DIAG RESULTS Displays the diagnosis results judged by BCM.
DATA MONITOR The BCM input/output signals are displayed.
ACTIVE TEST The signals used to activate each device are forcibly supplied from BCM.
Monitor item Description
REMO CONT ID CONFIR It can be checked whether Intelligent Key ID code is registered or not in this mode.
AUTO LOCK SETAuto door lock time can be changed in this mode.
MODE 1: 1 minute
MODE 2: 5 minutes
MODE 3: 30 seconds
MODE 4: 2 minutes
LOCK/UNLOCK BY I-KEYDoor lock/unlock function by door request switch (driver side and passenger side) mode can be
changed to operate (WITH) or not operate (WITHOUT) in this mode.
ENGINE START BY I-KEYEngine start function mode can be changed to operate (WITH) or not operate (WITHOUT) in this
mode.
TRUNK/GLASS HATCH OPENBuzzer reminder function mode by trunk lid opener request switch can be changed to operate
(WITH) or not operate (WITHOUT) in this mode.
PANIC ALARM SETNOTE:
This item is displayed, but cannot be used.
PW DOWN SETNOTE:
This item is displayed, but cannot be used.
TRUNK OPEN DELAYTrunk button pressing on Intelligent Key button can be selected as per the following in this mode.
MODE 1: Press and hold
MODE 2: Press twice
MODE 3: Press and hold, or press twice
LO-BATT OF KEY FOB WARNIntelligent Key low battery warning mode can be changed to operate (WITH) or not operate (WITH-
OUT) in this mode.
ANTI KEY LOCK IN FUNCTIKey reminder function mode can be changed to operate (WITH) or not operate (WITHOUT) in this
mode.
HAZARD ANSWER BACKHazard reminder function mode can be selected from the following in this mode.
LOCK ONLY: Door lock operation only
UNLOCK ONLY: Door unlock operation only
LOCK/UNLOCK: Lock/unlock operation
OFF: Non-operational
ANS BACK I-KEY LOCKBuzzer reminder function (lock operation) mode by door request switch (driver side and passenger
side) can be selected from the following is this mode.
Horn chirp: Sound horn
Buzzer: Sound Intelligent Key warning buzzer
OFF: Non-operational
ANS BACK I-KEY UNLOCKBuzzer reminder function (unlock operation) mode by door request switch can be changed to op-
erate (ON) or not operate (OFF) in this mode.
SHORT CRANKING OUTPUTStarter motor can operate during the times below.
70 msec
100 msec
200 msec

BCS-26
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
SELF-DIAG RESULT
Refer to BCS-74, "DTCIndex".
DATA MONITOR
INSIDE ANT DIAGNOSIS This function allows inside key antenna self-diagnosis.
HORN WITH KEYLESS LOCKHorn reminder function mode by Intelligent Key button can be changed to operate (ON) or not op-
erate (OFF) in this mode. Monitor item Description
Monitor Item Condition
REQ SW -DR Indicates [ON/OFF] condition of door request switch (driver side).
REQ SW -AS Indicates [ON/OFF] condition of door request switch (passenger side).
REQ SW -BD/TR Indicates [ON/OFF] condition of trunk lid opener request switch.
PUSH SW Indicates [ON/OFF] condition of push-button ignition switch.
IGN RLY2 -F/B Indicates [ON/OFF] condition of ignition relay 2.
CLUCH SWNOTE:
This item is displayed, but cannot be monitored.
BRAKE SW 1 Indicates [ON/OFF] condition of brake switch.
DETE/CANCL SW Indicates [ON/OFF] condition of the P position.
SFT PN/N SW Indicates [ON/OFF] condition of the P or N position.
S/L -LOCK Indicates [ON/OFF] condition of steering lock unit (LOCK).
S/L -UNLOCK Indicates [ON/OFF] condition of steering lock unit (UNLOCK).
S/L RELAY -F/B Indicates [ON/OFF] condition of steering lock relay.
UNLK SEN -DR Indicates [ON/OFF] condition of driver door UNLOCK status.
PUSH SW -IPDM Indicates [ON/OFF] condition of push-button ignition switch.
IGN RLY1 -F/B Indicates [ON/OFF] condition of ignition relay 1.
DETE SW -IPDM Indicates [ON/OFF] condition of the P position.
SFT PN -IPDM Indicates [ON/OFF] condition of the P or N position.
SFT P -MET Indicates [ON/OFF] condition of the P position.
SFT N -MET Indicates [ON/OFF] condition of the N position.
ENGINE STATE Indicates [STOP/STALL/CRANK/RUN] condition of engine states.
S/L LOCK-IPDM Indicates [ON/OFF] condition of steering lock unit (LOCK).
S/L UNLK-IPDM Indicates [ON/OFF] condition of steering lock unit (UNLOCK).
S/L RELAY-REQ Indicates [ON/OFF] condition of steering lock relay.
VEH SPEED 1 Displays the vehicle speed signal received from combination meter by numerical value [Km/h].
VEH SPEED 2 Displays the vehicle speed signal received from ABS, VDC or CVT by numerical value [Km/h].
DOOR STAT-DR Indicates [LOCK/READY/UNLK] condition of driver side door status.
DOOR STAT-AS Indicates [LOCK/READY/UNLK] condition of passenger side door status.
ID OK FLAG Indicates [SET/RESET] condition of key ID.
PRMT ENG STRT Indicates [SET/RESET] condition of engine start possibility.
PRMT RKE STRTNOTE:
This item is displayed, but cannot be monitored.
KEY SW -SLOT Indicates [ON/OFF] condition of key slot.
TRNK/HAT MNTR Indicates [ON/OFF] condition of trunk lid.
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 Indicates [ON/OFF] condition of TRUNK OPEN signal from Intelligent Key.