Nissan Murano. Manual - part 177

BCS

POWER CONSUMPTION CONTROL SYSTEM

BCS-17

< SYSTEM DESCRIPTION >

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Component Parts Location

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1.

Combination meter

2.

IPDM E/R

3.

BCM

4.

Driver seat control unit

5.

Automatic back door control unit

A.

Engine room (LH)

B.

Behind of combination meter

C.

Backside of the seat cushion (driver 
seat)

D.

Dash side lower (Passenger side)

JPMIA0899ZZ

BCS-18

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)

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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:

• *1: For models with rain sensor this mode is displayed, but is not used.

• *2: This item is displayed, but is not used. 

FREEZE FRAME DATA (FFD)

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

×

×

Interior room lamp timer

INT LAMP

×

×

×

Exterior lamp

HEAD LAMP

×

×

×

Wiper and washer

WIPER

×

*

1

×

×

Turn signal and hazard warning lamps

FLASHER

×

×

×

—

AIR CONDITONER*

2

• Intelligent Key system
• Engine start system

INTELLIGENT KEY

×

×

×

Combination switch

COMB SW

×

Body control system

BCM

×

NVIS - NATS

IMMU

×

×

Interior room lamp battery saver

BATTERY SAVER

×

×

×

Back door opener system

TRUNK

×

×

Vehicle security system

THEFT ALM

×

×

×

RAP system

RETAINED PWR

×

Signal buffer system

SIGNAL BUFFER

×

×

TPMS

TPMS (AIR PRESSURE MONITOR)

×

×

×

BCS

DIAGNOSIS SYSTEM (BCM)

BCS-19

< SYSTEM DESCRIPTION >

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

NOTE:

*: Power supply position shifts to “LOCK” from “OFF”, when ignition switch is in the OFF position, selector lever is in the P position, and
any of the following conditions are met.

• Closing door

• Opening door

• Door is locked using door request switch

• Door is locked using Intelligent Key

The power supply position shifts to “ACC” when the push-button ignition switch (push switch) is pushed at “LOCK”.

DOOR LOCK

DOOR LOCK : CONSULT Function (BCM - DOOR LOCK)

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BCM CONSULT FUNCTION

CONSULT performs the following functions via CAN communication with BCM.

CONSULT screen item

Indication/Unit

Description

Vehicle Speed

km/h

Vehicle speed of the moment a particular DTC is detected

Odo/Trip Meter

km

Total mileage (Odometer value) of the moment a particular DTC is detected

Vehicle Condition

SLEEP>LOCK

Power position status of 
the moment a particular 
DTC is detected

While turning BCM status from low power consumption mode to 
normal mode (Power supply position is “LOCK”*)

SLEEP>OFF

While turning BCM status from low power consumption mode to 
normal mode (Power supply position is “OFF”.)

LOCK>ACC

While turning power supply position from “LOCK” to “ACC”

ACC>ON

While turning power supply position from “ACC” to “IGN”

RUN>ACC

While turning power supply position from “RUN” to “ACC” (Vehicle 
is stopping and selector lever is except P position.)

CRANK>RUN

While turning power supply position from “CRANKING” to “RUN” 
(From cranking up the engine to run it)

RUN>URGENT

While turning power supply position from “RUN“ to “ACC” (Emer-
gency stop operation)

ACC>OFF

While turning power supply position from “ACC” to “OFF”

OFF>LOCK

While turning power supply position from “OFF” to “LOCK”*

OFF>ACC

While turning power supply position from “OFF” to “ACC”

ON>CRANK

While turning power supply position from “IGN” to “CRANKING”

OFF>SLEEP

While turning BCM status from normal mode (Power supply posi-
tion is “OFF”.) to low power consumption mode

LOCK>SLEEP

While turning BCM status from normal mode (Power supply posi-
tion is “LOCK”*) to low power consumption mode

LOCK

Power supply position is “LOCK”*

OFF

Power supply position is “OFF” (Ignition switch OFF)

ACC

Power supply position is “ACC” (Ignition switch ACC)

ON

Power supply position is “IGN” (Ignition switch ON with engine 
stopped)

ENGINE RUN

Power supply position is “RUN” (Ignition switch ON with engine 
running)

CRANKING

Power supply position is “CRANKING” (At engine cranking)

IGN Counter

0 - 39

The number of times that ignition switch is turned ON after DTC is detected
• The number is 0 when a malfunction is detected now.
• The number increases like 1 

→

 2 

→

 3...38 

→

 39 after returning to the normal condition 

whenever ignition switch OFF 

→

 ON.

• The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.

BCS-20

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

WORK SUPPORT

DATA MONITOR

NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.

ACTIVE TEST

Diagnosis mode

Function Description

WORK SUPPORT

Changes the setting for each system function.

DATA MONITOR

The BCM input/output signals are displayed.

ACTIVE TEST

The signals used to activate each device are forcibly supplied from BCM.

Monitor item

Description

DOOR LOCK-UNLOCK SET

Selective unlock function mode can be changed to operate (WITH) or not operate (WITHOUT) with 
this mode.

AUTOMATIC DOOR LOCK SE-
LECT

Automatic door lock function mode can be selected from the following in this mode.
• VH SPD: All doors are locked when vehicle speed more than 24km/h (15MPH)
• P RANGE: All doors are locked when shifting the selector lever from P position to other than the 

P position

AUTOMATIC DOOR UNLOCK 
SELECT

Automatic door unlock function mode can be selected from the following in the mode.
• MODE 1: All doors are unlocked when the power supply position is changed from ON to OFF
• MODE 2: All doors are unlocked when shifting the selector lever from any position other than 

the P to P position

• MODE 3: Driver side door is unlocked when the power supply position is changed from ON to 

OFF

• MODE 4: Driver side door is unlocked when shifting the selector lever from any position other 

than the P to P position

AUTOMATIC LOCK/UNLOCK 
SET

Automatic door lock/unlock function mode can be selected from the following in this mode.
• Off: non-operational
• Unlock Only: door unlock operation only
• Lock Only: door lock operation only
• Lock/Unlock: lock/unlock operation

Monitor Item

Contents

REQ SW-DR

Indicated [ON/OFF] condition of door request switch (driver side).

REQ SW-AS

Indicated [ON/OFF] condition of door request switch (passenger side).

REQ SW-BD/TR

Indicated [ON/OFF] condition of back door request switch. 

DOOR SW-DR

Indicated [ON/OFF] condition of front door switch (driver side).

DOOR SW-AS

Indicated [ON/OFF] condition of front door switch (passenger side).

DOOR SW-RR

Indicated [ON/OFF] condition of rear door switch RH.

DOOR SW-RL

Indicated [ON/OFF] condition of rear door switch LH.

DOOR SW-BK

Indicated [ON/OFF] condition of back door switch.

CDL LOCK SW

Indicated [ON/OFF] condition of lock signal from door lock unlock switch.

CDL UNLOCK SW

Indicated [ON/OFF] condition of unlock signal from door lock unlock switch.

KEY CYL LK-SW

Indicated [ON/OFF] condition of lock signal from door key cylinder.

KEY CYL UN-SW

Indicated [ON/OFF] condition of unlock signal from door key cylinder.