Infiniti QX56 (Z62). Manual - part 1384

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< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

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

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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.

×

: Applicable item

*: This item is indicated, 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-III.

Diagnosis mode

Function Description

Work Support

Changes the setting for each system function.

Self Diagnostic Result

Displays the diagnosis results judged by BCM. Refer to 

BCS-57, "DTC Index"

.

CAN Diag Support Monitor

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

• 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

×

×

×

Turn signal and hazard warning lamps

FLASHER

×

×

×

—

AIR CONDITONER*

×

×

• Intelligent Key system
• Engine start system

INTELLIGENT KEY

×

×

×

Combination switch

COMB SW

×

Body control system

BCM

×

IVIS

IMMU

×

×

×

Interior room lamp battery saver

BATTERY SAVER

×

×

×

Back door

TRUNK

×

Vehicle security system

THEFT ALM

×

×

×

RAP system

RETAINED PWR

×

Signal buffer system

SIGNAL BUFFER

×

×

DIAGNOSIS SYSTEM (BCM)

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< SYSTEM DESCRIPTION >

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WIPER

WIPER : CONSULT-III Function (BCM - WIPER)

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WORK SUPPORT

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” (Ignition switch OFF with steer-
ing is locked.)

OFF

Power supply position is “OFF” (Ignition switch OFF with steering 
is unlocked.)

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.

Service item

Setting item

Description

WIPER SPEED 

SETTING*

1

On

With vehicle speed
(Front wiper intermittent time linked with the vehicle speed and wip-
er intermittent dial position)

The setting of front wip-
er INT operation can be 
changed

Off

Without vehicle speed
(Front wiper intermittent time linked with the wiper intermittent dial 
position)

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< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

*1:The item is indicated, but not operated

*2:Factory setting

DATA MONITOR

ACTIVE TEST

RAIN SEN WIP 
FUNC SET

On*

2

With rain sensor
(Front wiper intermittent time linked with the rain sensor, vehicle 
speed, and AUTO dial position)

The setting of front wip-
er AUTO operation can 
be changed

Off

Without rain sensor
(Front wiper intermittent time linked with the vehicle speed and 
AUTO dial position)

DROP WIPE 

FUNC SET*

1

MODE1

Front wiper and rear wiper OFF

The setting of drop wipe 
operation can be 
changed

MODE2*

2

Front wiper ON and rear wiper OFF

MODE3

Front wiper OFF and rear wiper ON

MODE4

Front wiper and rear wiper ON

Service item

Setting item

Description

Monitor Item

[Unit]

Description

PUSH SW
[Off/On]

The switch status input from push-button ignition switch.

VEH SPEED 1
[km/h]

Displays the value of the vehicle speed signal received from combination meter via CAN com-
munication.

FR WIPER HI
[Off/On]

Status of each switch judged by BCM using the combination switch reading function

FR WIPER LOW
[Off/On]

FR WASHER SW
[Off/On]

FR WIPER INT
[Off/On]

FR WIPER STOP
[Off/On]

Displays the status of the front wiper stop position signal received from IPDM E/R via CAN 
communication.

INT VOLUME
[1 

−

 7] 

Status of each switch judged by BCM using the combination switch reading function

RR WIPER ON
[Off/On]

Status of each switch judged by BCM using the combination switch reading function

RR WIPER INT
[Off/On]

RR WASHER SW
[Off/On]

RR WIPER STOP
[Off/On]

Rear wiper motor (stop position) status input from the rear wiper motor

H/L WASH SW
[Off/On]

NOTE:
This item is indicated, but not monitored

RAIN SENSOR
[OFF/LOW/HIGH/SPLASH/NG]

Request signal from rain sensor detected by BCM is displayed

DIAGNOSIS SYSTEM (BCM)

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< SYSTEM DESCRIPTION >

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Test item

Operation

Description

FR WIPER

Hi

Transmits the front wiper request signal (HI) to IPDM E/R via CAN communication to op-
erate the front wiper HI operation.

Lo

Transmits the front wiper request signal (LO) to IPDM E/R via CAN communication to 
operate the front wiper LO operation.

INT

Transmits the front wiper request signal (INT) to IPDM E/R via CAN communication to 
operate the front wiper INT operation.

Off

Stops transmitting the front wiper request signal to stop the front wiper operation.

RR WIPER

On

Output the voltage to operate the rear wiper motor.

Off

Stops the voltage to stop the rear wiper motor.

HEADLAMP WASH-
ER

On

Transmits the headlamp washer request signal to IPDM E/R via CAN communication to 
operate the headlamp washer operation.