Nissan Pathfinder. Manual - part 206

BCS

SYSTEM

BCS-13

< SYSTEM DESCRIPTION >

[BCM]

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• BCM receives the sleep-ready signal (ready) from IPDM E/R and combination meter via CAN communica-

tion.

• 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 wakeup signal. BCM is in CAN com-

munication sleep mode.

• BCM is in the low power consumption mode and performs the low power consumption control when all of the

BCM sleep conditions are fulfilled with CAN sleep condition.

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 are 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

are 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 com-

bination meter transmits the wake up signal to BCM via CAN communication to report the CAN communica-

tion start.

CAN sleep condition

BCM sleep condition

• Receiving the sleep-ready signal (ready) from all units
• Ignition switch: OFF
• Vehicle security system alarm and panic alarm : No operation
• Warning lamp:  Not operation
• Intelligent Key system buzzer:  No operation
• Brake switch:  OFF
• Turn signal indicator lamp:  No operation
• Exterior lamp:  OFF
• Door lock status:  No change
• CONSULT communication status: No communication
• Meter display signal : Non-transmission
• 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 (push switch) illumination:  OFF
• NATS: No operation
• Remote keyless entry receiver communication status:  No 

communication

• Tire pressure monitoring system:  Stop

BCM wake-up condition

CAN wake-up condition

• Door unlock sensor:  OFF

→ON, ON→OFF

• Door lock assembly LH (key cylinder switch): Lock or unlock
• Door lock switch:  OFF

→ON

• Door unlock switch:  OFF

→ON

• Back door opener switch:  OFF

→ON

• Power window serial link communication: Receiving
• Remote keyless entry receiver:  Receiving valid keyfob

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

• Back door switch:  OFF

→ON, ON→OFF

• Driver door request switch:  OFF

→ON

• Passenger door request switch:  OFF

→ON

• Back door request switch:  OFF

→ON

• Stop lamp switch 2 signal:  ON
• Remote keyless entry receiver:  Receiving valid keyfob

BCS-14

< SYSTEM DESCRIPTION >

[BCM]

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)

INFOID:0000000009174872

CAUTION:

After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must

be cycled OFF 

→ ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go

to ”sleep mode”, potentially causing a discharged battery and no-start condition. 

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions.

Direct Diagnostic Mode

Description

Ecu Identification

The BCM part number is displayed.

Self Diagnostic Result

The BCM self diagnostic results are displayed.

Data Monitor

The BCM input/output data is displayed in real time.

Active Test

The BCM activates outputs to test components.

Work support

The settings for BCM functions can be changed.

Configuration

• The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.

CAN Diag Support Mntr

The result of transmit/receive diagnosis of CAN communication is displayed.

System

Sub System

Direct Diagnostic Mode

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CAN Diag 

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Door lock

DOOR LOCK

×

×

×

×

Rear window defogger

REAR DEFOGGER

×

×

×

Warning chime

BUZZER

×

×

Interior room lamp timer

INT LAMP

×

×

×

Exterior lamp

HEADLAMP

×

×

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps FLASHER

×

×

Air conditioner

AIR CONDITIONER

×

Intelligent Key system

INTELLIGENT KEY

×

×

×

×

Combination switch

COMB SW

×

BCM

BCM

×

×

×

×

×

Immobilizer

IMMU

×

×

×

Interior room lamp battery saver

BATTERY SAVER

×

×

Back door open

TRUNK

×

Vehicle security system

THEFT ALM

×

×

×

RAP system

RETAINED PWR

×

BCS

DIAGNOSIS SYSTEM (BCM)

BCS-15

< SYSTEM DESCRIPTION >

[BCM]

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DOOR LOCK
DOOR LOCK : CONSULT Function (BCM - DOOR LOCK)

INFOID:0000000009174873

CAUTION:

After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must

be cycled OFF 

→ ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go

to ”sleep mode”, potentially causing a discharged battery and no-start condition. 

SELF DIAGNOSTIC RESULT

Refer to 

BCS-52, "DTC Index"

.

DATA MONITOR

ACTIVE TEST

WORK SUPPORT

Signal buffer system

SIGNAL BUFFER

×

TPMS

AIR PRESSURE MONITOR

×

×

×

×

System

Sub System

Direct Diagnostic Mode

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CAN Diag 

Support Mntr

Monitor Item [Unit]

Description

REQ SW-DR [On/Off]

Indicates condition of door request switch LH.

REQ SW-AS [On/Off]

Indicates condition of door request switch RH.

REQ SW-BD/TR [On/Off]

Indicates condition of back door request switch.

DOOR SW-DR [On/Off]

Indicates condition of front door switch LH.

DOOR SW-AS [On/Off]

Indicates condition of front door switch RH.

DOOR SW-RR [On/Off]

Indicates condition of rear door switch RH.

DOOR SW-RL [On/Off]

Indicates condition of rear door switch LH.

DOOR SW-BK [On/Off]

Indicates condition of back door switch.

CDL LOCK SW [On/Off]

Indicates condition of lock signal from door lock and unlock switch.

CDL UNLOCK SW [On/Off]

Indicates condition of unlock signal from door lock and unlock switch.

KEY CYL LK-SW [On/Off]

Indicates condition of lock signal from door key cylinder switch.

KEY CYL UN-SW [On/Off]

Indicates condition of unlock signal from door key cylinder switch.

Test Item

Description

DOOR LOCK

This test is able to check door lock operation [ALL LOCK/ALL UNLK].

Support Item

Setting

Description

DOOR LOCK-UNLOCK SET

On*

Automatic door locks function ON.

Off

Automatic door locks function OFF.

AUTO UNLOCK TYPE

MODE2

Driver door only unlocks automatically.

MODE1*

All doors unlock automatically.

BCS-16

< SYSTEM DESCRIPTION >

[BCM]

DIAGNOSIS SYSTEM (BCM)

* : Initial setting

REAR DEFOGGER
REAR DEFOGGER : CONSULT Function (BCM - REAR DEFOGGER)

INFOID:0000000009174874

CAUTION:

After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must

be cycled OFF 

→ ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go

to ”sleep mode”, potentially causing a discharged battery and no-start condition. 

DATA MONITOR

ACTIVE TEST

WORK SUPPORT

* : Initial setting

BUZZER
BUZZER : CONSULT Function (BCM - BUZZER)

INFOID:0000000009174875

CAUTION:

After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must

be cycled OFF 

→ ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go

to ”sleep mode”, potentially causing a discharged battery and no-start condition. 

DATA MONITOR

AUTO LOCK FUNCTION

MODE3

This mode is not used.

MODE2

Doors lock automatically when shifted out of P (park).

MODE1*

Doors lock automatically when vehicle speed reaches 24 km/h (15 mph).

Off

—

AUTO UNLOCK FUNCTION

MODE3

This mode is not used.

MODE2

Doors unlock automatically when shifted into P (park).

MODE1*

Doors unlock automatically when ignition is switched from ON to OFF.

Off

—

Support Item

Setting

Description

Monitor Item [Unit]

Description

PUSH SW [On/Off]

Indicates condition of push-button ignition switch.

REAR DEF SW [On/Off]

Indicates condition of rear window defogger switch.

Test Item

Description

REAR DEFOGGER

This test is able to check rear window defogger operation [Off/On].

Support Item

Setting

Description

SET R-DEF TIMER

MODE3

Rear defogger turns OFF after 1 minute.

MODE2

Rear defogger remains ON until turned OFF.

MODE1*

Rear defogger turns OFF after 15 minutes.

Monitor Item [Unit]

Description

PUSH -SW [On/Off]

Indicates condition of push-button ignition switch.

UNLK SEN -DR [On/Off]

Indicates condition of door unlock sensor.

VEH SPEED 1 [km/h]

Indicates vehicle speed signal received from ABS on CAN communication line.