2007 INFINITI QX56 Factory Service Manual

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Page 689 of 3061

INFINITI QX56 2007 Factory Service Manual BCS-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003533595
The Supple

Page 690 of 3061

INFINITI QX56 2007 Factory Service Manual BCM (BODY CONTROL MODULE)
BCS-3
< SERVICE INFORMATION >
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BCM (BODY CONTROL MODULE)
System DescriptionINFOID:0000000003533596
• BCM (Body Control Module) controls the

Page 691 of 3061

INFINITI QX56 2007 Factory Service Manual BCS-4
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
NOTE:
Headlamp has a dual system switch.
4. Example operation: (When lighting switch 1st position turned ON)
• When lighting switch 1st positi

Page 692 of 3061

INFINITI QX56 2007 Factory Service Manual BCM (BODY CONTROL MODULE)
BCS-5
< SERVICE INFORMATION >
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Normal status
• When BCM is not in sleep status, OUTPUT terminals (1-5) each turn ON-OFF every 10ms.
Sleep st

Page 693 of 3061

INFINITI QX56 2007 Factory Service Manual BCS-6
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
• When CAN communication operation is detected, it switches to CAN communication status.
• When a state of the following switches changes, i

BCS-6
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
• 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:
- Ignition switch
- Key switch (insert)
- Hazard switch
- Main door lock/unlock switch
- Front door switch (LH, RH)
- Rear door switch (LH, RH)
- Back latch (door ajar switch)
- Glass hatch ajar switch
- Combination switch (passing, lighting switch 1st position, front fog lamp)
- Keyfob (lock/unlock signal)
- Front door lock assembly LH (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.
SYSTEMS CONTROLLED BY BCM DIRECTLY
• Power door lock system. Refer to BL-15.
• Remote keyless entry system. Refer to BL-37
.
• Power window system. Refer to GW-15
. NOTE
• Sunroof system. Refer to RF-10. NOTE
• Room lamp timer. Refer to LT-101.
• Warning chime system. Refer to DI-36
.
• Turn signal and hazard warning lamps system. Refer to LT- 5 7
.
• Trailer turn signal and hazard warning lamps system (if equipped). Refer to LT- 9 4
.
• Rear wiper and washer system. Refer to WW-26
.
NOTE:
Power supply only. No system control.
SYSTEMS CONTROLLED BY BCM AND IPDM E/R
• Panic system. Refer to BL-37.
• Vehicle security system. Refer to BL-60
.
• IVIS (NATS) system. Refer to BL-116
.
• Headlamp, tail lamp, front fog lamp, auto light and battery saver control systems. Refer to LT- 5
, LT- 2 4, LT- 8 2,
LT- 4 9
or LT- 3 4.
• Front wiper and washer system. Refer to WW-3
.
• Rear window defogger system. Refer to GW-68
.
MAJOR COMPONENTS AND CONTROL SYSTEM
System Input Output
Remote keyless entry system Remote keyless entry receiver (keyfob)• All door locking actuators
• Back door opener actuator
• Turn signal lamps
Power door lock system• Front power door lock/unlock switch (LH, RH)
• All door switches
• Key switchAll door locking actuators
Power supply [ignition (IGN)/retained ac-
cessory power (RAP)] to power window
and sunroofIGN/RAP supplyPower supply to power window and
sunroof system
Power supply (BAT) to power window
and sunroofBattery power supplyPower supply to power window and
sunroof system
Panic alarm• Key switch
• Remote keyless entry receiver (keyfob)IPDM E/R
Auto light system• Optical sensor
• Combination switchIPDM E/R
Battery saver control• Ignition switch
• Combination switch
• Front door switch LH and RHIPDM E/R

Page 694 of 3061

INFINITI QX56 2007 Factory Service Manual BCM (BODY CONTROL MODULE)
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< SERVICE INFORMATION >
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CAN Communication System DescriptionINFOID:0000000003533597
Refer to LAN-4.
Headlamp Combination switch IPDM E/

Page 695 of 3061

INFINITI QX56 2007 Factory Service Manual BCS-8
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
Schematic
INFOID:0000000003533598
WKWA5129E

Page 696 of 3061

INFINITI QX56 2007 Factory Service Manual BCM (BODY CONTROL MODULE)
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< SERVICE INFORMATION >
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WKWA5130E

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