Nissan Leaf. Instruction — part 154
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BCS-10
< SYSTEM DESCRIPTION >
SYSTEM
• The circuit between OUTPUT 4 and INPUT 5 is formed when the TAIL LAMP switch is turned ON.
• BCM detects the combination switch status signal “5D” when the signal of OUTPUT 4 is input to INPUT 5.
• BCM judges that the TAIL LAMP switch is ON when the signal “5D” is detected.
Example 2: When some switches (TURN RH switch, TAIL LAMP switch) are turned ON
• The circuits between OUTPUT 1 and INPUT 5 and between OUTPUT 4 and INPUT 5 are formed when the
TURN RH switch and TAIL LAMP switch are turned ON.
• BCM detects the combination switch status signal “5AD” when the signals of OUTPUT 1 and OUTPUT 4 are
input to INPUT 5.
• BCM judges that the TURN RH switch and TAIL LAMP switch are ON when the signal “5AD” is detected.
WIPER VOLUME DIAL POSITION
BCM judges the wiper volume dial 1 - 7 by the status of INT VOLUME 1, 2 and 3 switches.
JPMIA1545GB
JPMIA1546GB
Wiper intermittent
dial position
Switch status
INT VOLUME 1
INT VOLUME 2
INT VOLUME 3
1
ON
ON
ON
2
ON
ON
OFF
3
ON
OFF
OFF
4
OFF
OFF
OFF
5
OFF
OFF
ON
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BCS
SYSTEM
BCS-11
< 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-8, "FRONT WIPER AND WASHER SYSTEM : System Description"
.
SIGNAL BUFFER SYSTEM
SIGNAL BUFFER SYSTEM : System Description
INFOID:0000000010122305
SYSTEM DIAGRAM
OUTLINE
BCM has the signal transmission function that outputs/transmits each input/received signal to each unit.
Signal transmission function list
POWER CONSUMPTION CONTROL SYSTEM
6
OFF
ON
ON
7
OFF
ON
OFF
Wiper intermittent
dial position
Switch status
INT VOLUME 1
INT VOLUME 2
INT VOLUME 3
AWMIA1404GB
Signal name
Input
Output
Description
Power switch ON signal
Power switch (push switch)
• IPDM E/R (CAN)
• Electrically-driven Intelligent
Brake unit (CAN)
Inputs the power switch (push
switch) signal and transmits the
power switch position status
judged with BCM via CAN com-
munication.
Door switch signal
Any door switch
• Combination meter (CAN)
• IPDM E/R (CAN)
• Electrically-driven Intelligent
Brake unit (CAN)
Inputs the door switch signal
and transmits it via CAN com-
munication.
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BCS-12
< SYSTEM DESCRIPTION >
SYSTEM
POWER CONSUMPTION CONTROL SYSTEM : System Description
INFOID:0000000010122306
SYSTEM DIAGRAM
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 and Electrically-driven Intelligent Brake unit) that oper-
ates with the power 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.
JMMIA0613GB
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BCS
SYSTEM
BCS-13
< SYSTEM DESCRIPTION >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Sleep condition
INL-10, "INTERIOR ROOM LAMP BATTERY SAVER SYSTEM : System Description"
for details of the interior room lamp bat-
tery saver time.
Wake-up operation
• BCM transmits sleep wake up signal (wake up) to each unit when any condition listed below is established,
and then goes into normal mode from low power consumption mode.
• Each unit starts transmissions with CAN communication by receiving sleep wake up signals. Each unit trans-
mit wake up signals to BCM with CAN communication to convey the start of CAN communication.
Wake-up condition
CAN sleep condition
BCM sleep condition
• Receiving the sleep-ready signal (ready) from all units
• 1 minute after turning power switch OFF
• Theft warning alarm and panic alarm: Not operation
• Warning chime: Not operation
• Intelligent Key system buzzer: Not operation
• Stop lamp switch: OFF
• 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
• Driver door lock status: No change
• Interior room lamp battery saver: Time out*
• RAP system: Not operation
• Nissan Vehicle Immobilizer System (NVIS) - NATS: Not opera-
tion
• Remote keyless entry receiver communication status: No com-
munication
• Tire pressurer monitoring system (TPMS): Stop
• ACC/ON indicator lamp: Not operation
Wake-up condition
• Receiving the sleep-ready signal (Not-ready) from any units
• Power 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 (driver 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
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