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BCM (BODY CONTROL MODULE)
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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 switches 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
switches 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 (ACC, ON)
–Hazard switch
–Door lock/unlock switch
–Front door switch (driver side, passenger side)
–Back door opener switch (coupe models)
–Trunk lid opener switch (roadster models)
–Combination switch (passing, lighting switch 1ST position)
–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.
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BCS-8
BCM (BODY CONTROL MODULE)
Revision: 2006 November2007 350Z
SYSTEMS CONTROLLED BY BCM DIRECTLY
NOTE:
1. Power supply only. No system control.
2. Coupe models
SYSTEMS CONTROLLED BY BCM AND IPDM E/R
SYSTEMS CONTROLLED BY BCM AND COMBINATION METER
System Reference
Power door lock systemBL-21, "
POWER DOOR LOCK SYSTEM"
Remote keyless entry systemBL-59, "REMOTE KEYLESS ENTRY SYSTEM"
Power window system NOTE 1GW-18, "POWER WINDOW SYSTEM"
Power seat NOTE 1SE-12, "POWER SEAT/FOR COUPE" or SE-15, "POWER SEAT/FOR ROADSTER"
Interior room lampLT-128, "INTERIOR ROOM LAMP"
Rear wiper and washer system NOTE 2WW-36, "REAR WIPER AND WASHER SYSTEM"
System Reference
Panic alarmBL-59, "
REMOTE KEYLESS ENTRY SYSTEM"
Theft warningBL-125, "VEHICLE SECURITY (THEFT WARNING) SYSTEM"
NVIS (NATS)BL-150, "NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)"
Headlamp (For USA)LT- 5 , "HEADLAMP (FOR USA)"
Headlamp (For Canada)
Daytime light systemLT-32, "HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -"
Parking, license plate and tail lamps
Battery saver controlLT-103, "PARKING, LICENSE PLATE AND TAIL LAMPS"
Front wiper and washer systemWW-4, "FRONT WIPER AND WASHER SYSTEM"
Rear window defoggerGW-56, "REAR WINDOW DEFOGGER"
System Reference
Warning chimeDI-71, "
WARNING CHIME"
Turn signal and hazard warning lampsLT-65, "TURN SIGNAL AND HAZARD WARNING LAMPS"
Low tire pressure warning system WT-10, "TIRE PRESSURE MONITORING SYSTEM"
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BCM (BODY CONTROL MODULE)
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MAJOR COMPONENTS AND CONTROL SYSTEM
System Input Output
Remote control entry system
Remote keyless entry receiver
Key switch
All-door switch
All-door locking actuator
Turn signal lamp (LH, RH)
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 Ignition power supply Power window system
Power supply (BAT) to power window and
power seatBattery power supplyPower window system and power
seat
Panic alarm
Key switch
Remote keyless entry receiverIPDM E/R
Theft warning system
All-door switch
Remote keyless entry receiver
Power window main switch (door lock and
unlock switch)
IPDM E/R
Security indicator lamp
Exterior lamp battery saver control
Ignition switch
Combination switchIPDM E/R
Headlamp Combination switch IPDM E/R
Daytime light system
Engine status signal
Ignition switch
Combination switch
Parking brake signalIPDM E/R
Tail lamp Combination switch IPDM E/R
Turn signal lamp
Combination switch
Ignition switch
Turn signal lamp
Combination meter
Hazard lamp Hazard switch
Turn signal lamp
Combination meter
Room lamp timer
Key switch
Remote keyless entry receiver
Power window main switch (door lock and
unlock switch)
All-door switch
Interior room lamp
Map lamp
Key hole illumination
Interior lamp battery saver control
Ignition switch
Remote keyless entry receiver
All-door switchBCM
Key warning chime
Key switch
Front door switch driver sideCombination meter
(warning buzzer)
Light warning chime
Combination switch
Ignition switch
Front door switch driver sideCombination meter
(warning buzzer)
Seat belt warning chime
Combination meter [Seat belt buckle
(driver side) switch]
Ignition switchCombination meter
(warning buzzer)
Front wiper and washer system
Combination switch
Combination meter
Ignition switchIPDM E/R
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BCS-10
BCM (BODY CONTROL MODULE)
Revision: 2006 November2007 350Z
NOTE:
Coupe models
CAN Communication System DescriptionNKS0009O
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicles are equipped with many electronic control units and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNKS0009P
Refer to LAN-48, "CAN System Specification Chart" .
Rear wiper and washer system NOTECombination switch
Ignition switchRear wiper motor
Rear window defogger
Rear window defogger switch
Ignition switchIPDM E/R
A/C switch signal Unified meter and A/C amp. ECM
Blower fan switch signal Unified meter and A/C amp. ECM
Low tire pressure warning system Remote keyless entry receiver Combination meterSystem Input Output
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BCM (BODY CONTROL MODULE)
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Revision: 2006 November2007 350Z
Removal and Installation of BCMNKS0009T
REMOVAL
1. Remove the dash side finisher (LH). Refer to EI-35, "BODY
SIDE TRIM" .
2. Disconnect BCM connector.
3. Remove bracket mounting screws to remove BCM and fuse
block with bracket.
4. Raise the pawl of fuse block and remove bracket from fuse block
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.
SKIA1918E
SKIA1919E