BCS-2
INTELLIGENT KEY : CONSULT Function (BCM -
INTELLIGENT KEY) ........ .......................................
22
COMB SW .............................................................. ...25
COMB SW : CONSULT Function (BCM - COMB
SW) ...................................................................... ...
25
BCM ........................................................................ ...25
BCM : CONSULT Function (BCM - BCM) ..............25
IMMU ...................................................................... ...26
IMMU : CONSULT Function (BCM - IMMU) ...........26
BATTERY SAVER ................................................. ...26
BATTERY SAVER : CONSULT Function (BCM -
BATTERY SAVER) .......... .......................................
26
TRUNK ................................................................... ...27
TRUNK : CONSULT Function (BCM - TRUNK) .....27
THEFT ALM ........................................................... ...27
THEFT ALM : CONSULT Function (BCM - THEFT
ALM) .................................................................... ...
27
RETAINED PWR .................................................... ...28
RETAINED PWR : CONSULT Function (BCM -
RETAINED PWR) ................................................ ...
28
SIGNAL BUFFER ................................................... ...28
SIGNAL BUFFER : CONSULT Function (BCM -
SIGNAL BUFFER) ............................................... ...
29
AIR PRESSURE MONITOR ................................... ...29
AIR PRESSURE MONITOR : CONSULT Function
(BCM-AIR PRESSURE MONITOR) .................... ...
29
ECU DIAGNOSIS INFORMATION ..............31
BCM (BODY CONTROL MODULE) ............... ...31
Reference Value .................................................. ...31
Fail Safe .................................................................50
DTC Inspection Priority Chart ..............................50
DTC Index ........................................................... ...52
WIRING DIAGRAM .....................................55
BCM ................................................................ ...55
Wiring Diagram .................................................... ...55
BASIC INSPECTION ...................................64
INSPECTION AND ADJUSTMENT ................ ...64
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT ..................................................... ...
64
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description ............................. ...
64
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Work Pr ocedure ........................
64
CONFIGURATION (BCM) ...................................... ...64
CONFIGURATION (BCM) : Description .................65
CONFIGURATION (BCM) : Work Procedure .........65
CONFIGURATION (BCM) : Configuration list .........66
TRANSIT MODE CANCEL OPERATION ...... ...67
Description ........................................................... ...67
Work Procedure ......................................................67
DTC/CIRCUIT DIAGNOSIS ........................68
U1000 CAN COMM CIRCUIT ......................... ...68
Description ........................................................... ...68
DTC Logic ...............................................................68
Diagnosis Procedure ...............................................68
U1010 CONTROL UNIT (CAN) .........................69
DTC Logic ............................................................ ...69
Diagnosis Procedure ...............................................69
U0415 VEHICLE SPEED SIG ............................70
Description ........................................................... ...70
DTC Logic ...............................................................70
Diagnosis Procedure ...............................................70
B2562 LOW VOLTAGE .....................................71
DTC Logic ............................................................ ...71
Diagnosis Procedure ...............................................71
B259A ROOM LAMP FUSE ..............................72
DTC Logic ............................................................ ...72
Diagnosis Procedure ...............................................72
POWER SUPPLY AND GROUND CIRCUIT .....74
Diagnosis Procedure ............................................ ...74
COMBINATION SWITCH INPUT CIRCUIT .......75
Diagnosis Procedure ............................................ ...75
COMBINATION SWITCH OUTPUT CIRCUIT ...77
Diagnosis Procedure ...............................................77
SYMPTOM DIAGNOSIS ............................79
COMBINATION SWITCH SYSTEM SYMP-
TOMS .............................................................. ...
79
Symptom Table .................................................... ...79
REMOVAL AND INSTALLATION ..............80
BCM (BODY CONTROL MODULE) ............... ...80
Removal and Installation .........................................80
COMBINATION SWITCH ............................... ...81
Exploded View ..................................................... ...81
Removal and Installation .........................................81
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS
SYSTEMBCS-7
< SYSTEM DESCRIPTION > [BCM]
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SYSTEM
BODY CONTROL SYSTEM
BODY CONTROL SYSTEM
: System DescriptionINFOID:0000000009461989
OUTLINE
• BCM (body control module) controls various electric al components. It receives the information required from
CAN communication and the signals received from each switch and sensor.
• BCM has a combination switch reading function for readi ng the status of combination switches (light, turn
signal, wiper and washer) in addition to functions for c ontrolling the operation of various electrical compo-
nents. It also has a signal transmission function for ot her systems, and a power consumption control function
that reduces the power consumpt ion with the ignition switch OFF.
• BCM is equipped with a diagnosis function that operates with CONSULT and allows for various settings to
be changed.
BCM FUNCTION LIST
System Refer to
Combination switch reading system BCS-8, "COMBINATION SWITCH READING SYSTEM : System
Description"
Signal buffer system
BCS-12, "SIGNAL BUFFER SYSTEM : System Description"
Power consumption control systemBCS-12, "POWER CONSUMPTION CONTROL SYSTEM : Sys-tem Description"
Auto light system (if equipped)
EXL-10, "AUTO LIGHT SYSTEM : System Description"
Headlamp system EXL-9, "HEADLAMP SYSTEM : System Description"
Daytime light system (if equipped)EXL-11, "DAYTIME RUNNING LIGHT SYSTEM : System De-scription"
Front fog lamp system (if equipped)
EXL-11, "FRONT FOG LAMP SYSTEM : System Description"
Turn signal and hazard warning lamps systemEXL-12, "TURN SIGNAL AND HAZARD WARNING LAMPS : System Description"
Parking, license plate and tail lamps system
EXL-12, "PARKING, LICENSE PLATE AND TAIL LAMPS : Sys-tem Description"
Exterior lamp battery saver system
EXL-9, "HEADLAMP SYSTEM : System Description"
Interior room lamp battery saver systemINL-7, "System Description"
Interior room lamp control system INL-7, "System Description"
Front wiper and washer system WW-6, "System Description"
Warning chime systemWCS-6, "WARNING CHIME SYSTEM : System Description"
Door lock systemDLK-21, "System Description"
Trunk open systemDLK-41, "System Description"
Nissan vehicle immobilizer system (NVIS)SEC-14, "NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : System Description"
Vehicle security system
SEC-16, "VEHICLE SECURITY SYSTEM : System Description"
Panic alarm
Rear window defogger system DEF-7, "System Description"
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS-8
< SYSTEM DESCRIPTION >[BCM]
SYSTEM
COMBINATION SWITCH READING SYSTEM
COMBINATION SWITCH READING
SYSTEM : System DiagramINFOID:0000000009461990
COMBINATION SWITCH READING SY STEM : System DescriptionINFOID:0000000009461991
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 (OUTPU T 1 - 5) and 5 input terminals (INPUT 1 - 5) and reads
a maximum of 20 switch states.
COMBINATION SWITCH MATRIX
Intelligent Key system/engine start sys-
tem Door lock function
•
DLK-24, "DOOR LOCK FUNCTIO N : System Description"
(door
request switch) (if equipped)
• DLK-24, "DOOR LOCK FUNCTIO N : System Description"
(In-
telligent Key)
Trunk open function DLK-37, "TRUNK LID OPENER SYS
TEM : System Description"
(Intelligent Key)
Warning function DLK-33, "WARNING FUNCTIO N : System Description"
Key reminder functionDLK-29, "KEY REMINDER FUNCTION : System Description"
Engine start functionSEC-11, "INTELLIGENT KEY SYSTEM/ENGINE START FUNC-TION : System Description"
Power window system
•
PWC-10, "System Description" (LH front only anti-pinch)
• PWC-72, "System Description"
(LH & RH front anti-pinch)
RAP (retained accessory power) system BCS-28, "RETAINED PWR : CONSULT Function (BCM - RE-
TAINED PWR)"
TPMS (tire pressure
monitoring system) WT-9, "System Description"
System Refer to
AWMIA1215GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS
SYSTEMBCS-13
< SYSTEM DESCRIPTION > [BCM]
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• BCM receives the sleep-ready signal (ready) from IPDM E/R and combination meter via CAN communica-
tion.
• 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 wakeup signal. BCM is in CAN com- munication sleep mode.
• BCM is in the low power consumption mode and performs the low power consumption control when all of the
BCM sleep conditions are fulfilled with CAN sleep condition.
Sleep condition
Wake-up operation
• BCM changes from the low power consumption m ode to the CAN communication sleep mode when the any
of the BCM wake-up conditions are 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 are fulfilled. It changes from the low power consum ption mode or the CAN communication sleep mode to the
normal mode.
• Each unit starts the transmission of CAN communicati on 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.
CAN sleep condition BCM sleep condition
• Receiving the sleep-ready signal (ready) from all units
• Ignition switch: OFF
• Vehicle security system alarm and panic alarm : No operation
• Warning lamp: Not operation
• Intelligent Key system buzzer: No operation
• Brake switch: OFF
• Turn signal indicator lamp: No operation
• Exterior lamp: OFF
• Door lock status: No change
• CONSULT communication status: No communication
• Meter display signal : Non-transmission
• Door switch status: No change
• Rear window defogger: OFF • Interior room lamp batte
ry saver: Time out
• RAP system: OFF
• Power window switch communication: No transmission
• Push-button ignition switch (push switch) illumination: OFF
• NATS: No operation
• Remote keyless entry receiver communication status: No
communication
• Tire pressure monitoring system: Stop
BCM wake-up condition CAN wake-up condition
• Door unlock sensor: OFF →ON, ON →OFF
• Door lock assembly LH (key cylinder switch): Lock or unlock
• Door lock switch: OFF →ON
• Door unlock switch: OFF →ON
• Trunk opener switch: OFF →ON
• Power window serial link communication: Receiving
• Remote keyless entry receiver: Receiving valid keyfob • Receiving the sleep-ready signal (Not-ready) from any units
• 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
• Trunk switch: OFF →ON, ON →OFF
• Driver door request swit ch (if equipped): OFF→ON
• Passenger door request switch (if equipped): OFF →ON
• Stop lamp switch 2 signal: ON
• Remote keyless entry receiver: Receiving valid keyfob
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS-14
< SYSTEM DESCRIPTION >[BCM]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT Fu
nction (BCM - COMMON ITEM)INFOID:0000000009461996
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a di scharged battery and a no-start condition.
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
Direct Diagnostic Mode Description
Ecu Identification The BCM part number is displayed.
Self Diagnostic Result The BCM self diagnostic results are displayed.
Data Monitor The BCM input/output data is displayed in real time.
Active Test The BCM activates outputs to test components.
Work support The settings for BCM functions can be changed.
Configuration • The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.
CAN Diag Support Mntr The result of transmit/receive diagnosis of CAN communication is displayed.
System Sub System Direct Diagnostic Mode
Ecu Identification
Self Diagnostic Result
Data Monitor
Active Test
Work support
Configuration
CAN Diag Su pport Mntr
Door lock DOOR LOCK ××××
Rear window defogger REAR DEFOGGER ×××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Remote keyless entry system MULTI REMOTE ENT ×××
Exterior lamp HEADLAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ××
Air conditioner AIR CONDITIONER ×
Intelligent Key system INTELLIGENT KEY ××××
Combination switch COMB SW ×
BCM BCM × × ×××
Immobilizer IMMU ×××
Interior room lamp battery saver BATTERY SAVER ××
Trunk open TRUNK ×
Vehicle security system THEFT ALM ×××
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS
DIAGNOSIS SYSTEM (BCM)BCS-15
< SYSTEM DESCRIPTION > [BCM]
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DOOR LOCK
DOOR LOCK : CONSULT Func
tion (BCM - DOOR LOCK)INFOID:0000000009461997
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentiall y causing a discharged battery and a no-start condition.
SELF DIAGNOSTIC RESULT
Refer to BCS-52, "DTC Index".
DATA MONITOR
ACTIVE TEST
WORK SUPPORT
RAP system RETAINED PWR ×
Signal buffer system SIGNAL BUFFER ×
TPMS AIR PRESSURE MONITOR ××××
System Sub System
Direct Diagnostic Mode
Ecu Identification
Self Diagnostic Result
Data Monitor
Active Test
Work support
Configuration
CAN Diag Support Mntr
Monitor Item [Unit] Description
REQ SW-DR [On/Off] Indicates condition of door request switch LH.
REQ SW-AS [On/Off] Indicates condition of door request switch RH.
REQ SW-BD/TR [On/Off] Indicates condition of trunk opener request switch.
DOOR SW-DR [On/Off] Indicates condition of front door switch LH.
DOOR SW-AS [On/Off] Indicates condition of front door switch RH.
DOOR SW-RR [On/Off] In dicates condition of rear door switch RH.
DOOR SW-RL [On/Off] Indicates condition of rear door switch LH.
DOOR SW-BK [On/Off] Indicates condition of trunk switch.
CDL LOCK SW [On/Off] Indicates condition of lock signal from door lock and unlock switch.
CDL UNLOCK SW [On/Off] Indicates condition of unlock signal from door lock and unlock switch.
KEY CYL LK-SW [On/Off] Indicates condition of lo ck signal from door key cylinder switch.
KEY CYL UN-SW [On/Off] Indicates condition of unlo ck signal from door key cylinder switch.
Test Item Description
DOOR LOCK This test is able to check door lock operation [ALL LOCK/ALL UNLK].
Support Item Setting Description
DOOR LOCK-UNLOCK SET On* Automatic door locks function ON.
Off Automatic door locks function OFF.
AUTO UNLOCK TYPE MODE2 Driver door only unlocks automatically.
MODE1* All doors unlock automatically.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS
DIAGNOSIS SYSTEM (BCM)BCS-17
< SYSTEM DESCRIPTION > [BCM]
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NACTIVE TEST
INT LAMP
INT LAMP : CONSULT Func
tion (BCM - INT LAMP)INFOID:0000000009462000
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentiall y causing a discharged battery and a no-start condition.
DATA MONITOR
ACTIVE TEST
WORK SUPPORT
NOTE:
TAIL LAMP SW [On/Off] Indicates condition of combination switch.
FR FOG SW [On/Off] Indicates condition of front fog lamp switch.
DOOR SW-DR [On/Off] Indicates condition of front door switch LH.
CDL LOCK SW [On/Off] Indicates condition of lock signal from door lock and unlock switch. Monitor Item [Unit] Description
Test Item Description
SEAT BELT WARN TEST This test is able to check seat belt warning chime operation [On/Off].
LIGHT WARN ALM This test is able to check light warning chime operation [On/Off].
REVERSE WARNING This test is able to check reverse warning chime operation [On/Off].
ID REGIST WARNING This test is able to check TPMS transmitter ID regist warning chime operation [On/Off].
Monitor Item [Unit] Description
REQ SW -DR [On/Off] Indicates condition of door request switch LH.
REQ SW -AS [On/Off] Indicates condition of door request switch RH.
PUSH -SW [On/Off] Indicates condition of push-button ignition switch.
UNLK SEN -DR [On/Off] Indicates condition of door unlock sensor.
DOOR SW-DR [On/Off] Indicates condition of front door switch LH.
DOOR SW-AS [On/Off] Indicates condition of front door switch RH.
DOOR SW-RR [On/Off] Indicates condition of rear door switch RH.
DOOR SW-RL [On/Off] Indicates condition of rear door switch LH.
DOOR SW-BK [On/Off] Indicates condition of trunk switch.
CDL LOCK SW [On/Off] Indicates condition of lock signal from door lock and unlock switch.
CDL UNLOCK SW [On/Off] Indicates condition of unlock signal from door lock and unlock switch.
KEY CYL LK-SW [On/Off] Indicates condition of lo ck signal from door key cylinder switch.
KEY CYL UN-SW [On/Off] Indicates condition of un lock signal from door key cylinder switch.
TRNK/HAT MNTR [On/Off] Indicates condition of trunk room lamp switch.
RKE-LOCK [On/Off] Indicates condition of lock signal from Intelligent Key.
RKE-UNLOCK [On/Off] Indicates condition of unlock signal from Intelligent Key.
Test Item Description
INT LAMP This test is able to check interior room lamp operation [On/Off].
STEP LAMP TEST This test is able to check step lamp operation [On/Off].
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS-18
< SYSTEM DESCRIPTION >[BCM]
DIAGNOSIS SYSTEM (BCM)
The items listed below are the only applicable Work Support it
ems for this vehicle. If other items are displayed
on CONSULT, do not use or change t he setting for these other items.
* : Initial setting
MULTI REMOTE ENT
MULTI REMOTE ENT : CONSULT Func tion (BCM - MULTI REMOTE ENT)
INFOID:0000000009462001
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a di scharged battery and a no-start condition.
DATA MONITOR
ACTIVE TEST
WORK SUPPORT
Support Item Setting Description
SCENARIO LIGHTING SETTING On
NOTE:
Do not use this function since interior room lamp control is changed.
Off*
SET I/L D-UNLCK INTCON On Interior room lamp timer function ON.
Off* Interior room lamp timer function OFF.
FOG LAMP OVERRIDE On* Fog lamp override function ON.
Off Fog lamp override function OFF.
Monitor Item [Unit] Description
RKE-LOCK [On/Off] Indicates condition of lock signal from keyfob.
RKE-UNLOCK [On/Off] Indicates condition of unlock signal from keyfob.
RKE-TR/BD [On/Off] Indicates condition of trunk release signal from keyfob.
RKE-PANIC [On/Off] Indicates condition of panic signal from keyfob.
RKE-P/W OPEN [On/Off] Indicates condition of power window down signal from keyfob.
RKE-MODE CHG [On/Off] Indicates condition of mode change signal from keyfob.
DOOR SW-DR [On/Off] Indicates condition of front door switch LH.
DOOR SW-AS [On/Off] Indicates condition of front door switch RH.
DOOR SW-RR [On/Off] Indicates condition of rear door switch RH.
DOOR SW-RL [On/Off] Indicates condition of rear door switch LH.
CDL LOCK SW [On/Off] Indicates condition of lock signal from door lock and unlock switch.
CDL UNLOCK SW [On/Off] Indicates condition of unlock signal from door lock and unlock switch.
KEY CYL LK SW [On/Off] Indicates condition of lock signal from door key cylinder switch.
KEY CYL UN-SW [On/Off] Indicates condition of unlock signal from door key cylinder switch.
Test Item Description
INT LAMP This test is able to check in terior room lamp operation [On/Off].
DOOR LOCK This test is able to check door lock operation [OTR ULK/AS UNLK/DR UNLK/ALL ULK/ALL
LCK].
PW REMOTO DOWN SET This test is able to check keyfob power window down operation [Off/On].
FLASHER This test is able to check ha zard reminder operation [Off/LH/RH].
HORN This test is able to check horn operation [On].
TRUNK/GLASS HATCH This test is able to check trunk open operation [Open].
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM