Infiniti QX56 (Z62). Manual - part 1352

 

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Infiniti QX56 (Z62). Manual - part 1352

 

 

WCS

WCS-1

DRIVER INFORMATION & MULTIMEDIA

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SECTION 

WCS

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CONTENTS

WARNING CHIME SYSTEM

PRECAUTION ...............................................

3

PRECAUTIONS ...................................................

3

Precaution for Supplemental Restraint System 
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................
..

3

SYSTEM DESCRIPTION  ..............................

4

COMPONENT PARTS  ........................................

4

Component Parts Location ........................................

4

Component Description .............................................

4

Combination Meter ....................................................

5

SYSTEM ..............................................................

6

WARNING CHIME SYSTEM  .......................................

6

WARNING CHIME SYSTEM : System Diagram .......

6

WARNING CHIME SYSTEM : System Description 

......

6

WARNING CHIME SYSTEM : Fail-Safe ...................

7

LIGHT REMINDER WARNING CHIME  .......................

8

LIGHT REMINDER WARNING CHIME : System 
Diagram ...................................................................
..

8

LIGHT REMINDER WARNING CHIME : System 
Description ..............................................................
..

8

FRONT FOG LIGHT REMINDER WARNING 
CHIME ........................................................................
..

9

FRONT FOG LIGHT REMINDER WARNING 
CHIME : System Diagram  .......................................

10

FRONT FOG LIGHT REMINDER WARNING 
CHIME : System Description ...................................

10

SEAT BELT WARNING CHIME  ................................

10

SEAT BELT WARNING CHIME : System Diagram 

....

11

SEAT BELT WARNING CHIME : System Descrip-
tion ..........................................................................

11

PARKING BRAKE RELEASE WARNING CHIME ....

12

PARKING BRAKE RELEASE WARNING CHIME 
: System Diagram  ....................................................

12

PARKING BRAKE RELEASE WARNING CHIME 
: System Description ................................................

12

DIAGNOSIS SYSTEM (COMBINATION 
METER) .............................................................

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CONSULT-III Function  ............................................

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DIAGNOSIS SYSTEM (BCM)  ...........................

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COMMON ITEM  .........................................................

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

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BUZZER .....................................................................

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BUZZER : CONSULT-III Function (BCM - BUZZ-
ER) ..........................................................................

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ECU DIAGNOSIS INFORMATION ..............

22

COMBINATION METER  ...................................

22

Reference Value ......................................................

22

Fail-Safe ..................................................................

29

DTC Index  ...............................................................

30

BCM (BODY CONTROL MODULE)  .................

31

List of ECU Reference .............................................

31

WIRING DIAGRAM  ......................................

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WARNING CHIME SYSTEM .............................

32

Wiring Diagram ........................................................

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BASIC INSPECTION  ...................................

37

DIAGNOSIS AND REPAIR WORKFLOW  ........

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Work Flow ................................................................

37

DTC/CIRCUIT DIAGNOSIS  .........................

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POWER SUPPLY AND GROUND CIRCUIT  ....

39

COMBINATION METER  ............................................

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WCS-2

COMBINATION METER : Diagnosis Procedure  ....

39

METER BUZZER CIRCUIT ................................

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Component Function Check  ...................................

40

Diagnosis Procedure .............................................

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SEAT BELT BUCKLE SWITCH SIGNAL CIR-
CUIT ...................................................................

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Component Function Check .................................

41

Diagnosis Procedure .............................................

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Component Inspection ............................................

42

PARKING BRAKE SWITCH SIGNAL CIR-
CUIT ...................................................................

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Diagnosis Procedure  ..............................................

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Component Inspection ............................................

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SYMPTOM DIAGNOSIS  ............................

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THE LIGHT REMINDER WARNING DOES 
NOT SOUND ......................................................

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Description ..............................................................

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Diagnosis Procedure ...............................................

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THE SEAT BELT WARNING CONTINUES 
SOUNDING, OR DOES NOT SOUND ...............

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Description ..............................................................

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Diagnosis Procedure ...............................................

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THE PARKING BRAKE RELEASE WARNING 
CONTINUES SOUNDING, OR DOES NOT 
SOUND ..............................................................

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Description ..............................................................

46

Diagnosis Procedure ...............................................

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WCS

PRECAUTIONS

WCS-3

< PRECAUTION >

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PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000006369725

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

WCS-4

< SYSTEM DESCRIPTION >

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000006222537

Component Description

INFOID:0000000006222682

1.

Parking brake switch

2.

ABS actuator and electric unit (con-
trol unit)
Refer to 

BRC-10, "Component Parts 

Location"

.

3.

BCM
Refer to 

BCS-4, "BODY CONTROL 

SYSTEM : Component Parts Loca-
tion"

.

4.

Combination meter

5.

Seat belt buckle switch (driver side)

JSNIA3313ZZ

Unit

Description

Combination meter

• Receives a buzzer output signal from the BCM with CAN communication line and sounds the 

buzzer.

• Judges whether the parking brake is released from the vehicle speed signal received from the 

ABS actuator and electric unit (control unit) with CAN communication line and the parking 
brake switch signal from the parking brake switch, and sounds the buzzer if necessary.

BCM

Based on the signals received from various units and switches, transmits the buzzer output sig-
nal to the combination meter via CAN communication.

ABS actuator and electric unit 
(control unit)

Transmits the vehicle speed signal to the combination meter via CAN communication.

Parking brake switch

Transmits the parking brake switch signal to the combination meter.

Seat belt buckle switch (driver 
side)

Transmits the seat belt buckle switch signal (driver side) to the combination meter.

 

 

 

 

 

 

 

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