Nissan Murano. Instruction — part 176
BCS
COMBINATION SWITCH READING SYSTEM
BCS-13
< SYSTEM DESCRIPTION >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
NOTE:
For details of wiper volume dial position, refer to
WW-7, "WITH RAIN SENSOR : System Description"
(with rain sensor),
OUT RAIN SENSOR : System Description"
3
ON
OFF
OFF
4
OFF
OFF
OFF
5
OFF
OFF
ON
6
OFF
ON
ON
7
OFF
ON
OFF
Wiper volume dial position
Switch status
WIP VOLUME 1
WIP VOLUME 2
WIP VOLUME 3
BCS-14
< SYSTEM DESCRIPTION >
SIGNAL BUFFER SYSTEM
SIGNAL BUFFER SYSTEM
System Diagram
INFOID:0000000009722436
System Description
INFOID:0000000009722437
OUTLINE
BCM has the signal transmission function that outputs/transmits each input/received signal to each unit.
Signal transmission function list
JMMIA0298GB
Signal name
Input
Output
Description
• Ignition switch ON signal
• Ignition switch signal
Push-button ignition switch
(Push switch)
• IPDM E/R (CAN)
• Driver seat control unit (CAN)
• Automatic back door 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)
Inputs the door switch signal
and transmits it via CAN com-
munication.
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
• ICC brake hold relay (With
ICC)
TCM (CAN)
Inputs the stop lamp switch 1
signal, and stop lamp switch 2
signal or ICC brake hold relay
(with ICC) signal, and transmits
it via CAN communication.
Interlock/PNP switch signal
TCM
IPDM E/R (CAN)
Inputs the selector lever P/N po-
sition signal, and transmits the
interlock/PNP switch signal via
CAN communication.
BCS
POWER CONSUMPTION CONTROL SYSTEM
BCS-15
< SYSTEM DESCRIPTION >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
POWER CONSUMPTION CONTROL SYSTEM
System Diagram
INFOID:0000000009722438
System Description
INFOID:0000000009722439
OUTLINE
• BCM incorporates a power saving control function that reduces the power consumption according to the
vehicle status.
• BCM switches the status (control mode) by itself with the power saving control function. It performs the sleep
request to each unit (IPDM E/R, combination meter, driver seat control unit and automatic back door control
unit) that operates with the ignition switch OFF.
Normal mode (wake-up)
- CAN communication is normally performed with other units
- Each control with BCM is operating properly
CAN communication sleep mode (CAN sleep)
- CAN transmission is stopped
- Control with BCM only is operating
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 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 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.
JPMIA0906GB
BCS-16
< SYSTEM DESCRIPTION >
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 and panic alarm: Not operation
• Warning chime: Not operation
• Intelligent Key system buzzer: Not operation
• 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 communication status: Not communication
• Meter display signal: Non-transmission
• Door switch status: No change
• Rear window defogger: OFF
• Auto back door: Not operation
• Interior room lamp battery saver: Time out
• RAP system: OFF
• Power window switch communication: No transmission
• Push-button ignition switch illumination: OFF
• Nissan Vehicle Immobilizer System (NVIS) - NATS: Not opera-
tion
• Remote keyless entry receiver communication status: No com-
munication
• Tire pressure monitor system (TPMS) - AIR PRESSURE MON-
ITOR: Stop
• LOCK indicator lamp: Not operation
• ACC indicator lamp: Not operation
• ON indicator lamp: Not operation
BCM wake-up condition
CAN wake-up condition
• Power window switch communication: Receiving
• Remote keyless entry receiver communication: Receiving
• 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
• 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
• Stop lamp switch: ON
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