Infiniti G37 Coupe. Manual — part 223
BCS-10
< FUNCTION DIAGNOSIS >
POWER CONSUMPTION CONTROL SYSTEM
POWER CONSUMPTION CONTROL SYSTEM
System Diagram
INFOID:0000000001612377
System Description
INFOID:0000000001612378
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 (unified meter and A/C amp.) and driver seat control unit]
that operates with the ignition 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 unified meter and A/C amp. via CAN com-
munication.
• 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.
JPMIA0069GB
BCS
POWER CONSUMPTION CONTROL SYSTEM
BCS-11
< FUNCTION DIAGNOSIS >
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Sleep condition
Wake-up operation
• BCM changes from the low power consumption mode to the CAN communication sleep mode when the any
of the BCM wake-up conditions is fulfilled. Only the control with BCM is activated.
• BCM transmits the sleep wake up signal (wake up) to each unit when any of the CAN wake-up conditions is
fulfilled. It changes from the low power consumption mode or the CAN communication sleep mode to the
normal mode.
• Each unit starts the transmission of CAN communication with the sleep wake up signal. In addition, the uni-
fied meter and A/C amp. transmits the wake up signal to BCM via CAN communication to report the CAN
communication start.
Wake-up condition
CAN sleep condition
BCM sleep condition
• Receiving the sleep-ready signal (ready) from all units
• Ignition switch: OFF
• Vehicle security system and panic alarm: Not operation
• Warning lamp: Not operation
• Intelligent Key system buzzer: Not operation
• Trunk room lamp switch status: No change
• Brake switch: OFF
• Key slot (card switch) status: No change
• Turn signal indicator lamp: Not operation
• Exterior lamp: OFF
• Door lock status: No change
• CONSULT-III communication status: Not communication
• Meter display signal: Non-transmission
• Steering lock operation: Not operation
• Door switch status: No change
• Rear window defogger: OFF
• Interior room lamp battery saver: Time out
• RAP system: OFF
• Power window switch communication: No transmission
• Push-button ignition switch illumination: OFF
• Infiniti Vehicle Immobilizer System (IVIS) - NATS: Not opera-
tion
• Remote keyless entry receiver communication status: No com-
munication
• Tire pressure monitor system (TPMS) - AIR PRESSURE
MONITOR: Stop
BCM wake-up condition
CAN wake-up condition
• Trunk lid opener switch: OFF
→
ON
• Power window switch communication: Receiving
• Remote keyless entry receiver: Receiving
• Receiving the sleep-ready signal (Not-ready) from any units
• Key slot (key switch): OFF
→
ON, ON
→
OFF
• Push-button ignition switch (push switch): OFF
→
ON
• Hazard switch: OFF
→
ON
• PASSING switch: OFF
→
ON, ON
→
OFF
• TAIL LAMP switch: OFF
→
ON
• Driver door switch: OFF
→
ON, ON
→
OFF
• Passenger door switch: OFF
→
ON, ON
→
OFF
• Trunk room lamp switch: OFF
→
ON, ON
→
OFF
• Driver door request switch: OFF
→
ON
• Passenger door request switch: OFF
→
ON
• Trunk request switch: OFF
→
ON
• Stop lamp switch 2 signal: ON
• Clutch interlock switch: OFF
→
ON
BCS-12
< FUNCTION DIAGNOSIS >
POWER CONSUMPTION CONTROL SYSTEM
Component Parts Location
INFOID:0000000001612379
1.
BCM
2.
IPDM E/R
3.
Unified meter and A/C amp.
4.
Driver seat control unit
A.
Dash side lower (passenger side)
B.
Engine room dash panel (RH)
C.
Behind Cluster lid C
D.
Backside of the seat cushion (driver
seat)
JPMIA0623ZZ
BCS
DIAGNOSIS SYSTEM (BCM)
BCS-13
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DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)
INFOID:0000000001612380
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
*: This item is displayed, but is not used.
FREEZE FRAME DATA (FFD) AND IGN COUNTER
Freeze Frame Data
The BCM records the following condition at the moment a particular DTC is detected.
• Vehicle Speed
• Odd Trip Meter
Diagnosis mode
Function Description
Work Support
Changes the setting for each system function.
Self Diagnostic Result
Displays the diagnosis results judged by BCM.
CAN DIAG SUPPORT MNTR
Monitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.
Data Monitor
The BCM input/output signals are displayed.
Active Test
The signals used to activate each device are forcibly supplied from BCM.
Ecu Identification
The BCM part number is displayed.
Configuration
This function is not used even though it is displayed.
System
Sub system selection item
Diagnosis mode
Work Support
Data Monitor
Active Test
Door lock
DOOR LOCK
×
×
×
Rear window defogger
REAR DEFOGGER
×
×
Warning chime
BUZZER
×
×
Interior room lamp timer
INT LAMP
×
×
×
Exterior lamp
HEAD LAMP
×
×
×
Wiper and washer
WIPER
×
×
×
Turn signal and hazard warning lamps
FLASHER
×
×
×
Air conditioner*
AIR CONDITONER
×
Intelligent Key system
INTELLIGENT KEY
×
×
×
Combination switch
COMB SW
×
BCM
BCM
×
IVIS - NATS
IMMU
×
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Trunk open
TRUNK
×
Vehicle security system
THEFT ALM
×
×
×
RAP system
RETAINED PWR
×
Signal buffer system
SIGNAL BUFFER
×
×
TPMS
TPMS (AIR PRESSURE MONITOR)
×
×
×
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