Nissan Qashqai J11. Manual - part 1823

 

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Nissan Qashqai J11. Manual - part 1823

 

 

BCS-18

< SYSTEM DESCRIPTION >

SYSTEM

POWER CONSUMPTION CONTROL SYSTEM : System Description

INFOID:0000000010377992

SYSTEM DIAGRAM

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 and AV 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, combination meter and AV control unit via

CAN communication.

• 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.

JMMIA1759GB

BCS

SYSTEM

BCS-19

< SYSTEM DESCRIPTION >

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Sleep condition

*1: Without Intelligent Key system
*2: With Intelligent Key system

Wake-up operation

• BCM transmits sleep wake up signal (wake up) to each unit when any condition listed below is established,

and then goes into normal mode from low power consumption mode.

• Each unit starts transmissions with CAN communication by receiving sleep wake up signals.

Wake-up condition

*1: Without Intelligent Key system
*2: With Intelligent Key system

SHIPPING MODE CONTROL SYSTEM

CAN sleep condition

BCM sleep condition

Receiving the sleep-ready signal (ready) from all units

• Ignition switch*

1

: LOCK or OFF

• Push-button ignition switch (push switch)*

2

: No change 2 sec-

onds

• Warning chime: Not operation

• Intelligent Key warning buzzer*

2

: Not operation

• Stop lamp switch: OFF
• Turn signal indicator lamp: Not operation
• Exterior lamp: OFF
• Door lock status: No change
• Meter display signal: Non-transmission
• Door switch status: No change 2 seconds
• Back door opener switch status: No change 2 seconds
• Rear window defogger: OFF
• RAP system: OFF
• CONSULT communication status: Not communication

Wake-up condition

• Receiving the sleep-ready signal (Not-ready) from any units

• Ignition switch*

1

: OFF 

 ON or START

• Key switch*

1

: OFF 

 ON, ON 

 OFF

• Push-button ignition switch (push switch)*

2

: OFF

 ON

• Hazard switch: OFF 

 ON, ON 

 OFF

• HI BEAM switch: OFF 

 ON, ON 

 OFF

• PASSING switch: OFF 

 ON, ON 

 OFF

• HEADLAMP switch: OFF 

 ON, ON 

 OFF

• TAIL LAMP switch: OFF 

 ON

• FR FOG switch: OFF 

 ON, ON 

 OFF

• RR FOG switch: OFF 

 ON, ON 

 OFF

• Driver door switch: OFF 

 ON, ON 

 OFF

• Passenger door switch: OFF 

 ON, ON 

 OFF

• Rear RH door switch: OFF 

 ON, ON 

 OFF

• Rear LH door switch: OFF 

 ON, ON 

 OFF

• Back door switch: OFF 

 ON, ON 

 OFF

• Driver door request switch: OFF 

 ON

• Passenger door request switch: OFF 

 ON

• Back door opener switch: OFF 

 ON

• Back door opener request switch: OFF 

 ON

• Stop lamp switch: OFF 

 ON

• Front door lock assembly (driver side) (unlock sensor): OFF 

 ON, ON 

 OFF

• Remote keyless entry receiver communication: Receiving
• Door lock and unlock switch: NEUTRAL 

 LOCK, NEUTRAL 

 UNLOCK

BCS-20

< SYSTEM DESCRIPTION >

SYSTEM

SHIPPING MODE CONTROL SYSTEM : System Description

INFOID:0000000010377993

SYSTEM DIAGRAM

DESCRIPTION

• BCM switches the status (shipping mode or normal mode) by itself according to the extended storage fuse

switch condition, and transmits shipping mode status signal to combination meter and each unit via CAN
communication.

• When shipping mode function operates, each control unit does not detect DTCs.
• BCM control functions are limited in shipping mode. Refer to 

BCS-131, "Description"

.

• The combination meter displays extended storage fuse warning message* on the information display, and

turns the turn signal indicator lamp (LH/RH) ON, when BCM is in shipping mode.

*: When shipping mode function operates, “SHIPPING MODE ON PUSH STORAGE FUSE” is displayed.

JMMIA1403GB

BCS

DIAGNOSIS SYSTEM (BCM)

BCS-21

< SYSTEM DESCRIPTION >

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DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)

INFOID:0000000010377994

APPLICATION ITEM

CONSULT 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.

×

: Applicable item

NOTE:
*: This item is displayed, but not used.

FREEZE FRAME DATA (FFD)

The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT.

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 Monitor

Monitors the reception status of CAN communication viewed from BCM.

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

• Read and save the vehicle specification.
• Write the vehicle specification when replacing BCM.

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

×

×

Exterior lamp

HEAD LAMP

×

×

×

Interior room lamp control

INT LAMP

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps

FLASHER

×

×

AIR CONDITONER*

×

×

Intelligent Key system

INTELLIGENT KEY

×

×

×

Combination switch

COMB SW

×

Body control system

BCM

×

NVIS - NATS

IMMU

×

Interior room lamp battery saver

BATTERY SAVER

×

Back door open

TRUNK

×

Vehicle security

THEFT ALM

×

×

RAP

RETAINED PWR

×

Remote keyless entry system

MULTI REMOTE ENT

×

×

Signal buffer system

SIGNAL BUFFER

×

×

 

 

 

 

 

 

 

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