2008 INFINITI FX35 Service Manual

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Page 721 of 3924

INFINITI FX35 2008 Service Manual
BCS-1
ELECTRICAL
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SECTION BCS
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CONTENTS
BODY CONTROL SYSTEM
SERVICE INFORMATION .. ..........................2
DTC INDEX ..............................................

Page 722 of 3924

INFINITI FX35 2008 Service Manual
BCS-2
< SERVICE INFORMATION >
DTC INDEX
SERVICE INFORMATION
DTC INDEX
U1000INFOID:0000000001351357
DTC Items (CONSULT screen terms) Reference
U1000 CAN COMM CIRCUIT BCS-13, "
U1000 CAN Communication

Page 723 of 3924

INFINITI FX35 2008 Service Manual
PRECAUTIONSBCS-3
< SERVICE INFORMATION >
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612

Page 724 of 3924

INFINITI FX35 2008 Service Manual
BCS-4
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE)
System DescriptionINFOID:0000000001328608
BCM (Body Control Module) controls the operation of various electrical unit

Page 725 of 3924

INFINITI FX35 2008 Service Manual
BCM (BODY CONTROL MODULE)BCS-5
< SERVICE INFORMATION >
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BCM reads operation status of combination swit ch using combinations shown in table below.
NOTE:
Headlamp syste

Page 726 of 3924

INFINITI FX35 2008 Service Manual
BCS-6
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
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 o

BCS-6
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
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-43, "
CAN System Specification Chart".
BCM STATUS CONTROL
BCM changes its status depending on the operation stat us 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 isactive, 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.
2 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.
3 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
PKIC4919E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

Page 727 of 3924

INFINITI FX35 2008 Service Manual
BCM (BODY CONTROL MODULE)BCS-7
< SERVICE INFORMATION >
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- Door lock/unlock switch
- Front door switch (driver side, passenger side)
- Rear door switch (LH, RH)
- Back

Page 728 of 3924

INFINITI FX35 2008 Service Manual
BCS-8
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
MAJOR COMPONENTS AND CONTROL SYSTEM
System Reference
Oil pressure warning lamp DI-34
System Input Output
Remote control entry system Key fob

BCS-8
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
MAJOR COMPONENTS AND CONTROL SYSTEM
System Reference
Oil pressure warning lamp DI-34
System Input Output
Remote control entry system Key fob All-door locking actuator
Fuel lid Lock actuator
Turn signal lamp (LH, RH)
Combination meter
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 supplyPower window, sunroof system and
power seat
Panic alarm Key switch
Key fobIPDM E/R
Theft warning system All-door switch
Hood switch
Key fob
Power window main switch (door lock and
unlock switch)
Power window sub switch (passenger side) (door lock and unlock switch) IPDM E/R
Security indicator lamp
Auto light system Optical sensor
Combination switch
Ignition switchIPDM E/R
Exterior lamp battery saver control Ignition switch
Combination switchIPDM E/R
Headlamp Combination switch IPDM E/R
Daytime light system Combination meter
ECM
Combination switch
Ignition switchIPDM E/R
Parking, license plate, side marker and tail
lamps Combination switch IPDM E/R
Front fog 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
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 sideCombination meter
(warning buzzer)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

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