Infiniti QX56 (Z62). Manual - part 1356

WCS

DIAGNOSIS SYSTEM (COMBINATION METER)

WCS-17

< SYSTEM DESCRIPTION >

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*: DDS (hill descent control)

NOTE:

Some items are not available according to vehicle specification.

SPECIAL FUNCTION

Special menu

W/L ON HISTORY

• Stores histories when warning/indicator lamp is turned on.
• “W/L ON HISTORY” indicates the “TIME” when the warning/ indicator lamp is turned on.
• The “TIME” above is:
- 0: The condition that the warning/indicator lamp has been turned on 1 or more times after starting the engine

and waiting for 30 seconds.

- 1 - 39: The number of times the engine was restarted after the 0 condition.
- NO W/L ON HISTORY: Stores NO (0) turning on history of warning/indicator lamp.
NOTE:
• W/L ON HISTORY is not stored for approximately 30 seconds after the engine starts.
• Brake warning lamp does not store any history when the parking brake is applied or the brake fluid level gets

low.

Display Item

FUEL LOW SIG
[On/Off]

Status of fuel level low warning signal to output to AV control unit via CAN com-
munication.

TOW MODE IND
[On/Off]

Status of TOW mode indicator lamp judged from TOW mode indicator lamp signal 
received from TCM with CAN communication line.

BUZZER
[On/Off]

X

Buzzer status (in the combination meter) is detected from the buzzer output signal 
received from each unit via CAN communication and the warning output condition 
of the combination meter.

Display item [Unit]

MAIN

SIGNALS

Description

Display item

Description

W/L ON HISTORY

Lighting history of warning lamp and indicator lamp can be checked.

Display item

Description

ABS W/L

Lighting history of ABS warning lamp.

VDC/TCS IND

Lighting history of VDC OFF indicator lamp.

SLIP IND

Lighting history of VDC warning lamp.

BRAKE W/L

Lighting history of brake warning lamp.

DOOR W/L

Lighting history of door open warning.

TRUNK/GLAS-H

This item is displayed, but cannot be monitored.

OIL W/L

Lighting history of oil pressure warning lamp.

C-ENG W/L

Lighting history of malfunction indicator lamp.

C-ENG2 W/L

This item is displayed, but cannot be monitored.

CRUISE IND

Lighting history of CRUISE indicator lamp.

SET IND

Lighting history of SET indicator lamp.

CRUISE W/L

Lighting history of CRUISE warning lamp.

BA W/L

Lighting history of IBA OFF indicator lamp.

O/D OFF IND 

This item is displayed, but cannot be monitored.

ATC/T-AMT W/L

Lighting history of A/T CHECK warning lamp.

ATF TEMP W/L

This item is displayed, but cannot be monitored.

CVT IND

This item is displayed, but cannot be monitored.

SPORT IND

This item is displayed, but cannot be monitored.

WCS-18

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (COMBINATION METER)

4WD W/L

Lighting history of 4WD warning lamp.

FUEL W/L

Lighting history of low fuel level warning.

WASHER W/L

Lighting history of low washer fluid warning.

AIR PRES W/L

Lighting history of low tire pressure warning lamp.

KEY G/Y W/L

Lighting history of KEY warning lamp.

KEY R W/L

This item is displayed, but cannot be monitored.

KEY KNOB W/L

This item is displayed, but cannot be monitored.

EPS W/L

This item is displayed, but cannot be monitored.

e-4WD 

This item is displayed, but cannot be monitored.

AFS OFF IND

This item is displayed, but cannot be monitored.

4WAS/RAS W/L

This item is displayed, but cannot be monitored.

HDC W/L

This item is displayed, but cannot be monitored.

SYS FAIL W/L

This item is displayed, but cannot be monitored.

SFT POSI W/L

This item is displayed, but cannot be monitored.

HV BAT W/L

This item is displayed, but cannot be monitored.

HEV BRAKE W/L

This item is displayed, but cannot be monitored.

SFT OPER W/L

This item is displayed, but cannot be monitored.

LANE W/L

Lighting history of lane departure warning lamp.

CHAGE W/L

This item is displayed, but cannot be monitored.

OIL LEV LOW

This item is displayed, but cannot be monitored.

DPF W/L

This item is displayed, but cannot be monitored.

TRAILER IND

This item is displayed, but cannot be monitored.

RUN FLAT W/L

This item is displayed, but cannot be monitored.

E-SUS W/L

This item is displayed, but cannot be monitored.

LAUNCH CNT W/L

This item is displayed, but cannot be monitored.

BRAKE PAD W/L

This item is displayed, but cannot be monitored.

Display item

Description

WCS

DIAGNOSIS SYSTEM (BCM)

WCS-19

< SYSTEM DESCRIPTION >

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DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

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

INFOID:0000000006419721

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

×

×

WCS-20

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

BUZZER

BUZZER : CONSULT-III Function (BCM - BUZZER)

INFOID:0000000006222687

CONSULT-III APPLICATION ITEMS

DATA MONITOR

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.

Test item

Diagnosis mode

Description

BUZZER

Data Monitor

Displays BCM input data in real time.

Active Test

Operation of electrical loads can be checked by sending driving signal to them.