Nissan Quest E52. Manual - part 1244

WCS-6

< SYSTEM DESCRIPTION >

SYSTEM

Warning functions

Out line

Warning judgment unit

Refer to

Light reminder warning chime

The warning chime sounds when the ignition 
switch is in OFF or ACC position with the com-
bination switch (lighting switch) in the 1st or 
2nd position and the driver side door open.

BCM

WCS-8, 
"LIGHT RE-
MINDER 
WARNING 
CHIME : Sys-
tem Descrip-
tion"

Front fog light reminder warning chime

The warning chime sounds when the ignition 
switch is turned to LOCK, OFF or ACC posi-
tion from ON position, with combination switch 
(lighting switch) is in AUTO position and the 
front fog lamp switch in ON position.

BCM

WCS-9, 
"FRONT FOG 
LIGHT RE-
MINDER 
WARNING 
CHIME : Sys-
tem Descrip-
tion"

Seat belt warning chime

The warning chime sounds when the driver 
seat belt is unfastened with the ignition switch 
in ON position.

BCM

WCS-10, 
"SEAT BELT 
WARNING 
CHIME : Sys-
tem Descrip-
tion"

Parking brake release warning chime

The warning chime sounds when the ignition 
switch is in ON position with the parking brake 
in operation and the vehicle speed 7 km/h (4.3 
MPH) or more.

Combination meter

WCS-11, 
"PARKING 
BRAKE RE-
LEASE WARN-
ING CHIME : 
System De-
scription"

WCS

SYSTEM

WCS-7

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

WARNING CHIME SYSTEM : Circuit Diagram

INFOID:0000000009650443

WARNING CHIME SYSTEM : Fail-Safe

INFOID:0000000009650444

The combination meter activates the fail-safe control if CAN communication with each unit is malfunctioning.

JSNIA6363GB

Function

Specifications

Buzzer

The buzzer turns OFF by suspending communication.

WCS-8

< SYSTEM DESCRIPTION >

SYSTEM

LIGHT REMINDER WARNING CHIME

LIGHT REMINDER WARNING CHIME : System Description

INFOID:0000000009650445

SYSTEM DIAGRAM

WARNING CHIME OPERATION CONDITIONS

If all of the following conditions are fulfilled.

WARNING CHIME CANCEL CONDITIONS

Warning is canceled if any of the following conditions is fulfilled.

SIGNAL PATH

1.

BCM requires warning chime output to combination meter when it judges light reminder warning chime is
necessary from signals below.

2.

Combination meter sounds integrated buzzer, following the warning chime output requirement (below sig-
nal) from BCM.

JSNIA2421GB

Operation conditions

Ignition switch

OFF or ACC position

Combination switch (Lighting 
switch)

1st or 2nd position

Driver side door

Open [front door switch (driver side) ON]

Operation conditions

Ignition switch

ON

Combination switch (Lighting 
switch)

OFF or AUTO position

Driver side door

Close [front door switch (driver side) OFF]

Signal name

Signal source

Ignition switch signal

—

Combination switch signal

Combination switch (Lighting switch) 

 BCM

Driver door switch signal

Front door switch (driver side) 

 BCM

Signal name

Signal source

Buzzer output signal

BCM  

Combination 

meter

WCS

SYSTEM

WCS-9

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

TIMING CHART

FRONT FOG LIGHT REMINDER WARNING CHIME

FRONT FOG LIGHT REMINDER WARNING CHIME : System Description

INFOID:0000000009650446

SYSTEM DIAGRAM

WARNING CHIME OPERATION CONDITIONS

Warning chime sounds during 2 seconds when the ignition switch is in LOCK, OFF or ACC position, if all of
below operation conditions is met.

SIGNAL PATH

1.

BCM requires warning chime output to combination meter when it judges front fog light reminder warning
chime is necessary from signals below.

2.

Combination meter sounds integrated buzzer, following the warning chime output requirement (below sig-
nal) from BCM.

JSNIA2426GB

JSNIA3117GB

Operation conditions

Ignition switch

ON position

Combination switch (Lighting 
switch)

AUTO position and front fog lamp switch ON 
position

Signal name

Signal source

Ignition switch signal

—

Combination switch signal

Combination switch (Lighting switch) 

 BCM