Infiniti M35/M45 Y50. Manual — part 230
BCM (BODY CONTROL MODULE)
BCS-5
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BCS
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 stop the output, and BCM enters low power
mode. Mean while OUTPUT 2-5 send out ON signal every 60 ms, and accept only input from lighting
switch (except turn signal 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-50, "CAN System Specification Chart"
PKIC0272E
BCS-6
BCM (BODY CONTROL MODULE)
BCM STATUS CONTROL
BCM changes its status depending on the operation status in order to save power consumption.
1.
CAN communication status
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With ignition switch ON, CAN communicates with other control units normally.
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Control by BCM is being operated properly.
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When ignition switch is OFF, switching to sleep mode is possible.
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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
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This status shuts down CAN communication when ignition switch is turned OFF.
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It transmits sleep request signal to IPDM E/R and combination meter.
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Two seconds after CAN communication of all control units stops, sleep transient status is switches to
CAN communication inactive status.
3.
CAN communication inactive status
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With ignition switch OFF, CAN communication is not active.
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With ignition switch OFF, control performed only by BCM is active.
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Three seconds after CAN communication of all control units stops, CAN communication inactive status
is switches to sleep status.
4.
Sleep status
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BCM is activated with low power mode.
●
CAN communication is not active.
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When CAN communication operation is detected, it switches to CAN communication status.
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When a state of the following switches changes, it switches to CAN communication status.
–
Key switch (ACC, ON)
–
Key slot
–
Intelligent Key (lock/unlock signal)
–
Hazard switch
–
Door lock/unlock switch
–
Front door switch (driver side, passenger side)
–
Rear door switch (LH, RH)
–
Trunk lid opener switch
–
Combination switch (passing, lighting switch 1ST position, front fog lamp)
–
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.
BCM (BODY CONTROL MODULE)
BCS-7
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BCS
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
SYSTEMS CONTROLLED BY BCM, COMBINATION METER AND IPDM E/R
SYSTEMS CONTROLLED BY BCM, LOW TIRE PRESSURE WARNING CONTROL UNIT AND
COMBINATION METER
System
Reference
Power door lock
BL-24, "POWER DOOR LOCK SYSTEM"
Power window
NOTE
Sunroof
NOTE
Automatic drive positioner
NOTE
SE-11, "AUTOMATIC DRIVE POSITIONER"
Room lamp timer
System
Reference
Panic alarm
BL-217, "VEHICLE SECURITY (THEFT WARNING) SYSTEM"
Theft warning system
BL-217, "VEHICLE SECURITY (THEFT WARNING) SYSTEM"
IVIS (NATS)
BL-244, "IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)"
Headlamp
●
LT-42, "HEADLAMP (FOR USA) - XENON TYPE -"
●
LT-8, "HEADLAMP (FOR USA) - CONVENTIONAL TYPE -"
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LT-78, "HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -"
Auto light system
Parking, license plate and tail lamps
LT-248, "PARKING, LICENSE PLATE AND TAIL LAMPS"
Front fog lamp
Front wiper and washer system
WW-4, "FRONT WIPER AND WASHER SYSTEM"
Rear window defogger
System
Reference
Turn signal and hazard warning lamps
LT-212, "TURN SIGNAL AND HAZARD WARNING LAMPS"
Warning chime
System
Reference
Intelligent Key
BL-43, "INTELLIGENT KEY SYSTEM"
System
Reference
Oil pressure warning lamp
System
Reference
Low tire pressure warning lamp and buzzer
BCS-8
BCM (BODY CONTROL MODULE)
MAJOR COMPONENTS AND CONTROL SYSTEM
System
Input
Output
Intelligent Key system
Intelligent Key unit
●
All door locking actuator
●
Trunk lid opener 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 win-
dow, sunroof
Ignition power supply
Power window and sunroof system
Power supply (BAT) to power win-
dow, sunroof and power seat
Battery power supply
Power window, sunroof system
and power seat
Panic alarm
●
Key slot
●
Intelligent Key
IPDM E/R
Theft warning system
●
All-door switch
●
Hood switch
●
Intelligent Key
●
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
Exterior lamp battery saver control
●
Ignition switch
●
Combination switch
IPDM E/R
●
Headlamp
●
Tail lamp
Combination switch
●
IPDM E/R
●
Combination meter
Front fog lamp
Combination switch
●
IPDM E/R
●
Combination meter
Turn signal lamp
Combination switch
●
Turn signal lamp
●
Combination meter
Hazard lamp
Hazard switch
●
Turn signal lamp
●
Combination meter
Interior room lamp timer
●
Key switch
●
Power window main switch (door lock and unlock switch)
●
Front door switch driver side
●
All-door switch
Interior room lamp
Key warning chime*
1
●
Key switch
●
Front door switch driver side
Combination meter
(warning buzzer)
Light warning chime
●
Combination switch
●
Front door switch driver side
Combination meter
(warning buzzer)
Tire pressure monitoring system
Low tire pressure warning control unit
Combination meter
(warning buzzer)
(warning lamp)
Seat belt warning chime
●
Combination meter [Seat belt buckle (driver side) switch]
●
Ignition switch
Combination meter
(warning buzzer)
Vehicle-speed-sensing intermittent
wiper
●
Combination switch
●
Unified meter and A/C amp.
IPDM E/R
Rear window defogger
●
Multifunction switch
●
NAVI control unit*
2
●
AV control unit*
3
IPDM E/R
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