Nissan Murano Z50 (2005 year). Manual — part 26
BCS-1
BODY CONTROL SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION
BCS
A
B
BCS
Revision: 2005 August
2005 Murano
BODY CONTROL SYSTEM
PRECAUTIONS . . . . . . . . . . . . . . .. 2
BCM (BODY CONTROL MODULE) . . . . . . ... 3
System Description . . . . . . . . . . . . .. 3
BCM FUNCTION . . . . . . . . . . . . ... 3
COMBINATION SWITCH READING FUNCTION
REMOVAL . . . . . . . . . . . . . . ... 16
INSTALLATION . . . . . . . . . . . . ... 16
BCS-2
PRECAUTIONS
Revision: 2005 August
2005 Murano
PRECAUTIONS
PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AKS007KU
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
●
To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
●
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
●
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
BCM (BODY CONTROL MODULE)
BCS-3
C
D
E
F
G
H
I
J
L
M
A
B
BCS
Revision: 2005 August
2005 Murano
BCM (BODY CONTROL MODULE)
PFP:284B2
System Description
AKS00A42
BCM (Body Control Module) controls the operation of various electrical units installed on the vehicle.
BCM FUNCTION
BCM has combination switch reading function for reading the operation of combination switches (light, wiper
washer, turn signal) in addition to a function for controlling the operation of various electrical components. Also
it has an interface function allowing it to receive signals from the unified meter and A/C amp., and send signals
to ECM using CAN communication.
COMBINATION SWITCH READING FUNCTION
Description
●
BCM reads combination switch (lighting switch, wiper switch) status, and controls various electrical com-
ponent according to the results.
●
BCM reads information of a maximum of 20 switches by combining five output terminals (OUTPUT 1-5)
and five input terminals (INPUT 1-5).
Operation Description
●
BCM activates transistors of output terminals (OUTPUT 1-5) periodically, and allows current to flow in
turn.
●
If any (1 or more) switches are turned ON, circuit of output terminals (OUTPUT 1-5) and input terminals
(INPUT 1-5) becomes active.
●
At this time, transistors of output terminals (OUTPUT 1-5) are activated to allow current to flow. When volt-
age of input terminals (INPUT 1-5) corresponding to that switch changes, interface in BCM detects volt-
age change, and BCM determines that switch is ON.
SKIA4958E
BCS-4
BCM (BODY CONTROL MODULE)
Revision: 2005 August
2005 Murano
Operation Table of BCM and Combination Switches
●
BCM reads operation status of combination switch using combinations shown in table below.
NOTE:
Headlamp has a dual system switch.
SKIA4959E
BCM (BODY CONTROL MODULE)
BCS-5
C
D
E
F
G
H
I
J
L
M
A
B
BCS
Revision: 2005 August
2005 Murano
Sample Operation: (When Lighting Switch 1ST Position Turned ON)
●
When lighting switch 1ST position is turned ON, contact in combination switch turns ON. At this time if
OUTPUT 4 transistor is activated, BCM detects that voltage changes in INPUT 5.
●
When OUTPUT 4 transistor is ON, BCM detects that voltage changes in INPUT 5, and judges that lighting
switch 1ST position is ON. Then BCM sends tail lamp ON signal to IPDM E/R using CAN communication.
●
When OUTPUT 4 transistor is activated again, BCM detects that voltage changes in INPUT 5, and recog-
nizes that lighting switch 1ST position is continuously ON.
NOTE:
Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore after switch is turned ON,
electrical loads are activated with time delay. But this time delay is so short that it cannot be detected by
human senses.
SKIA4960E
BCS-6
BCM (BODY CONTROL MODULE)
Revision: 2005 August
2005 Murano
Operation Mode
Combination switch reading function has operation modes shown below.
1.
Normal status
●
When BCM is not in sleep status, OUTPUT terminals (1-5) send out ON signal every 10 ms.
2.
Sleep status
●
When BCM is in sleep status, transistors of OUTPUT 1 and 5 stop the output, and BCM enters low
power mode. Mean while OUTPUT 2, 3, and 4 send out ON signal every 60 ms, and accept input from
lighting switch system.
CAN COMMUNICATION CONTROL
CAN communication allows a high rate of information transmission through the two communication lines (CAN
L line, CAN H line) connecting the various control units in the system. Each control unit transmits/receives
data but selectively reads required data only. For details of signals that are transmitted/received by BCM via
CAN communication, refer to
LAN-29, "CAN Communication Unit"
PKIB6124E
BCM (BODY CONTROL MODULE)
BCS-7
C
D
E
F
G
H
I
J
L
M
A
B
BCS
Revision: 2005 August
2005 Murano
BCM STATUS CONTROL
BCM changes its status depending on the operation status in order to save power consumption.
1.
CAN communication status
●
With ignition switch ON, CAN communicates with other control units normally.
●
Control by BCM is being operated properly.
●
When ignition switch is OFF, switching to sleep mode is possible.
●
Even when ignition switch is OFF, if CAN communication with IPDM E/R and combination meter is
active, CAN communication status is active.
2.
Sleep transient status
●
This status shuts down CAN communication when ignition switch is turned OFF.
●
It transmits sleep request signal to IPDM E/R and combination meter.
●
Two seconds after CAN communication of all control units stops, sleep transient status is switched to
CAN communication inactive status.
3.
CAN communication inactive status
●
With ignition switch OFF, CAN communication is not active.
●
With ignition switch OFF, control performed only by BCM is active.
●
Three seconds after CAN communication of all control units stops, CAN communication inactive status
is switched to sleep status.
4.
Sleep status
●
BCM is activated with low power mode.
●
CAN communication is not active.
●
When CAN communication operation is detected, it switches to CAN communication status.
●
When a state of the following switches changes, it switches to CAN communication state.
–
Key switch
–
Hazard switch
–
Door lock/unlock switch
–
Front door switch (driver side, passenger side)
–
Rear door switch (LH, RH)
–
Back door opener switch
–
Combination switch (passing, lighting switch 1ST position, front fog lamp)
–
Key fob (lock/unlock signal)
–
Key cylinder switch
●
When control performed only by BCM is required by switch, it shifts to CAN communication inactive
mode.
●
Status of combination switch reading function is changed.
BCS-8
BCM (BODY CONTROL MODULE)
Revision: 2005 August
2005 Murano
SYSTEMS CONTROLLED BY BCM DIRECTLY
NOTE:
Power supply only. No system control.
SYSTEMS CONTROLLED BY BCM AND IPDM E/R
SYSTEMS CONTROLLED BY BCM AND COMBINATION METER
SYSTEMS CONTROLLED BY BCM AND INTELLIGENT KEY UNIT
System
Reference
Power door lock
BL-23, "POWER DOOR LOCK SYSTEM"
Remote keyless entry
BL-59, "REMOTE KEYLESS ENTRY SYSTEM"
Power window
NOTE
Sunroof
NOTE
Power seat
NOTE
Room lamp timer
Warning chime
Rear wiper
WW-38, "REAR WIPER AND WASHER SYSTEM"
System
Reference
Panic alarm
BL-59, "REMOTE KEYLESS ENTRY SYSTEM"
Theft warning
BL-205, "VEHICLE SECURITY (THEFT WARNING) SYSTEM"
NVIS (NATS)
BL-234, "NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)"
Headlamp, tail lamp, Battery saver control,
day time light system
●
LT-6, "HEADLAMP - XENON TYPE -"
●
LT-39, "HEADLAMP -CONVENTIONAL TYPE-"
●
Auto light system
Fog lamp
Front wiper
WW-4, "FRONT WIPER AND WASHER SYSTEM"
Rear window defogger
System
Reference
Warning chime
Turn signal and hazard warning lamps
LT-123, "TURN SIGNAL AND HAZARD WARNING LAMPS"
System
Reference
Intelligent key
BCM (BODY CONTROL MODULE)
BCS-9
C
D
E
F
G
H
I
J
L
M
A
B
BCS
Revision: 2005 August
2005 Murano
MAJOR COMPONENTS AND CONTROL SYSTEM
System
Input
Output
Remote control entry system
key fob
●
All-door locking actuator
●
Turn signal lamp (LH, RH)
Intelligent key system
Intelligent key unit
●
All-door locking actuator
●
Fuel lid lock actuator
●
Turn signal lamp (LH, RH)
●
Combination meter
Power door lock system
●
Power window main switch
(door lock and unlock switch)
●
Power window sub switch (passenger side)
(door lock and unlock switch)
All-door locking actuator
Power supply (IGN) to power window, sunroof
Ignition power supply
Power window and sunroof system
Power supply (BAT) to power window, sunroof
and power seat
Battery power supply
Power window, sunroof system and
power seat
Panic alarm
●
Key switch
●
Key fob
IPDM E/R
Theft warning system
●
All-door switch
●
Key fob
●
Power window main switch (door lock and
unlock switch)
●
IPDM E/R
●
Security indicator lamp
Auto light system
●
Optical sensor
●
Combination switch
IPDM E/R
Battery saver control
●
Ignition switch
●
Combination switch
IPDM E/R
Headlamp
Combination switch
IPDM E/R
Day time light system
●
Engine status signal
●
Ignition switch
●
Combination switch
IPDM E/R
Tail lamp
Combination switch
IPDM E/R
Fog lamp
Combination switch
IPDM E/R
Turn signal lamp
Combination switch
●
Turn signal lamp
●
Combination meter
Hazard lamp
Hazard switch
●
Turn signal lamp
●
Combination meter
Room lamp timer
●
Key switch
●
Key fob
●
Power window main switch (door lock and
unlock switch)
●
Front door switch driver side
●
All-door switch
Interior room lamp
Key warning chime
●
Key switch
●
Front door switch driver side
Combination meter
(warning buzzer)
Light warning chime
●
Combination switch
●
Key switch
●
Front door switch driver side
Combination meter
(warning buzzer)
Seat belt warning chime
●
Combination meter (Seat belt buckle
(driver side) switch)
●
Ignition switch
Combination meter
(warning buzzer)
BCS-10
BCM (BODY CONTROL MODULE)
Revision: 2005 August
2005 Murano
CAN Communication Unit
AKS00AOG
Refer to
LAN-29, "CAN Communication Unit"
Vehicle-speed-sensing intermittent wiper
●
Combination switch
●
Combination meter
IPDM E/R
Rear intermittent wiper
Combination switch
Rear wiper motor
Rear window defogger
●
Rear window defogger switch
●
Ignition switch
IPDM E/R
A/C switch signal
Unified meter and A/C amp.
ECM
Blower fan switch signal
Unified meter and A/C amp.
ECM
System
Input
Output
BCM (BODY CONTROL MODULE)
BCS-11
C
D
E
F
G
H
I
J
L
M
A
B
BCS
Revision: 2005 August
2005 Murano
Schematic
AKS00A45
TKWB0499E
BCS-12
BCM (BODY CONTROL MODULE)
Revision: 2005 August
2005 Murano
TKWB0500E
BCM (BODY CONTROL MODULE)
BCS-13
C
D
E
F
G
H
I
J
L
M
A
B
BCS
Revision: 2005 August
2005 Murano
CONSULT-II Function (BCM)
AKS00A46
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT–II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1.
With the ignition switch OFF, connect CONSULT-II and CON-
SULT-II CONVERTER to the data link connector, then turn the
ignition switch ON.
2.
Touch “START (NISSAN BASED VHCL)”.
3.
Touch “BCM” on “SELECT SYSTEM” screen.
If “BCM” is not indicated, go to
.
BCM diagnostic test item
Check item, diagnostic test mode
Content
Inspection by part
WORK SUPPORT
Changes setting of each function.
SELF-DIAG RESULTS
BCM performs self-diagnosis of CAN communication.
DATA MONITOR
Displays the input data of BCM in real time.
CAN DIAG SUPPORT MNTR
The result of transmit/receive diagnosis of CAN communication can
be read.
ACTIVE TEST
Gives a drive signal to a load to check the operation.
ECU PART NUMBER
ECM part number can be read.
CONFIGURATION
(Not be used.)
PBIB1300E
BCIA0029E
BCIA0030E
BCS-14
BCM (BODY CONTROL MODULE)
Revision: 2005 August
2005 Murano
4.
Select the desired part to be diagnosed on the “SELECT TEST
ITEM” screen.
ITEMS OF EACH PART
NOTE:
CONSULT-II displays systems equipped in the vehicle.
×
:Applicable
NOTE:
*1: This item is displayed, but should not be used.
*2: This item is displayed, but does not function.
PKIA5226E
System and item
CONSULT-II display
Diagnostic test mode (Inspection by part)
WORK
SUPPORT
SELF
−
DIAG
RESULTS
DATA
MONI-
TOR
CAN
DIAG
SUP-
PORT
MNTR
ACTIVE
TEST
ECU
PART
NUMBER
CONFIG-
URATION
BCM
BCM
×
×
×
×
×
*1
Power door lock system
DOOR LOCK
×
×
×
Rear window defogger
REAR DEFOGGER
×
×
Warning chime
BUZZER
×
×
Room lamp timer
INT LAMP
×
×
×
Headlamp
HEAD LAMP
×
×
×
Wiper
WIPER
×
×
×
Turn signal lamp
Hazard lamp
FLASHER
×
×
Blower fan switch signal
A/C switch signal
AIR CONDITONER
×
Intelligent Key system
INTELLIGENT KEY
×
Combination switch
COMB SW
×
NVIS
IMMU
×
×
Room lamp battery saver
BATTERY SAVER
×
×
×
Trunk lid
TRUNK
*2
×
×
Vehicle security system
THEFT ALM
×
×
×
Retained power control
RETAINED PWR
×
×
×
Oil pressure switch
SIGNAL BUFFER
×
×
Panic system
PANIC ALARM
×
BCM (BODY CONTROL MODULE)
BCS-15
C
D
E
F
G
H
I
J
L
M
A
B
BCS
Revision: 2005 August
2005 Murano
WORK SUPPORT
Operation Procedure
1.
Touch “BCM” on “SELECT TEST ITEM” screen.
2.
Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
3.
Touch item on “SELECT WORK ITEM” screen.
4.
Touch “START”.
5.
Touch “CHANGE SET”.
6.
The setting will be changed and “RESETTING COMPLETED” will be displayed.
7.
Touch “END”.
Display Item List
CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)
AKS00A47
1.
CHECK SELF-DIAGNOSTIC RESULT
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1.
Connect to CONSULT-II, and select “BCM” on “SELECT SYSTEM” screen.
2.
Select “BCM control unit ” on “SELECT WORK ITEM” screen, and select “SELF-DIAG RESULTS”.
3.
Check display content in self-diagnostic results.
Contents displayed
No malfunction>>INSPECTION END
Malfunction in CAN communication system>>After printing the monitor items, go to “CAN System”. Refer to
LAN-5, "Precautions When Using CONSULT-II"
Item
Description
RESET SETTING VALUE
Return a value set with WORK SUPPORT of each system to a default value in factory shipment.
CONSULT-II display code
Diagnosis item
U1000
INITIAL DIAG
TRANSMIT DIAG
ECM
IPDM E/R
METER / M&A
I - KEY
BCS-16
BCM (BODY CONTROL MODULE)
Revision: 2005 August
2005 Murano
Removal and Installation of BCM
AKS00AAE
REMOVAL
1.
Remove the Instrument driver lower panel. Refer to
in “IP INSTRUMENT PANEL”.
2.
Disconnect BCM connector.
3.
Remove screws (2) to remove BCM.
INSTALLATION
Installation is the reverse order of removal.
NOTE:
When replacing BCM perform initialization of NATS system and registration of all NATS ignition key IDs.
SKIA4038E
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст