Nissan Murano. Manual - part 1446

WCS-6

< SYSTEM DESCRIPTION >

WARNING CHIME SYSTEM

NOTE:
Parking brake release warning chime is detected by combination meter.

WARNING CHIME SYSTEM : Component Parts Location

INFOID:0000000009721341

Warning functions

Signal name

Light reminder warning chime

• Ignition switch signal
• Lighting switch position signal
• Door switch signal (driver side)

Seat belt warning chime

• Ignition switch signal
• Seat belt buckle switch signal (driver side)

Key warning chime

• Ignition signal
• Key slot switch signal
• Door switch signal (driver side)

JPNIA0814ZZ

1.

Front door switch (driver side)

2.

Combination switch
(Lighting switch)

3.

Parking brake

4.

Seat belt buckle switch (driver side)

5.

Key slot

6.

BCM

7.

Combination meter

A.

Behind the combination meter

WCS

WARNING CHIME SYSTEM

WCS-7

< SYSTEM DESCRIPTION >

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WARNING CHIME SYSTEM : Component Description

INFOID:0000000009721342

LIGHT REMINDER WARNING CHIME

LIGHT REMINDER WARNING CHIME : System Diagram

INFOID:0000000009721343

LIGHT REMINDER WARNING CHIME : System Description

INFOID:0000000009721344

DESCRIPTION

With ignition switch in the OFF or ACC position, when the driver door is open and the lighting switch is the 1st
or 2nd position, the light warning chime will sound.
• BCM detects ignition switch in the OFF or ACC position, front door switch (driver side) ON, and lighting

switch in 1st or 2nd position. Then the BCM transmits the buzzer output signal (light reminder warning
chime) to combination meter with CAN communication line.

• When combination meter receives buzzer output signal (light reminder warning chime), it sounds the buzzer.

WARNING OPERATION CONDITIONS

If all of the following conditions are fulfilled.
• Ignition switch is in the OFF or ACC
• Lighting switch is in the 1st or 2nd position
• Front door switch (driver side) is ON

WARNING CANCEL CONDITIONS

Warning is canceled if any of the following conditions is fulfilled.
• Lighting switch OFF 
• Ignition switch ON
• Front door switch (driver side) is OFF

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. 

• Receives the seat belt buckle switch signal (driver side) from the seat belt buckle switch (driver 

side) and transmits it to BCM with CAN communication line.

BCM

Transmits signals provided by various units to the combination meter with CAN communication 
line.

ABS actuator and electric unit 
(control unit)

Transmits the vehicle speed signal to combination meter with CAN communication line.

Seat belt buckle switch (driver 
side)

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

Combination switch
(Lighting switch)

Transmits the lighting switch position signal to BCM.

Front door switch
(driver side)

Transmits the door switch signal (driver side) to BCM.

Parking brake switch

Refer to 

MWI-54, "Description"

.

Key slot

Transmits the key slot switch signal to BCM.

JPNIA0749GB

WCS-8

< SYSTEM DESCRIPTION >

WARNING CHIME SYSTEM

LIGHT REMINDER WARNING CHIME : Component Parts Location

INFOID:0000000009721345

LIGHT REMINDER WARNING CHIME : Component Description

INFOID:0000000009721346

SEAT BELT WARNING CHIME

JPNIA0814ZZ

1.

Front door switch (driver side)

2.

Combination switch
(Lighting switch)

3.

Parking brake

4.

Seat belt buckle switch (driver side)

5.

Key slot

6.

BCM

7.

Combination meter

A.

Behind the combination meter

Unit

Description

Combination meter

Receives a buzzer output signal from the BCM and sounds the buzzer.

BCM

Judges the light warning conditions from the signals provided by various switches and transmits a 
buzzer output signal to the combination meter via CAN communication line if necessary. 

Combination switch
(Lighting switch)

Transmits the lighting switch position signal to BCM.

Front door switch (driver side)

Transmits the door switch signal (driver side) to BCM.

WCS

WARNING CHIME SYSTEM

WCS-9

< SYSTEM DESCRIPTION >

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SEAT BELT WARNING CHIME : System Diagram

INFOID:0000000009721347

SEAT BELT WARNING CHIME : System Description

INFOID:0000000009721348

DESCRIPTION

With ignition switch turned ON and driver seat belt unfastened, seat belt warning chime will sound for approxi-
mately 6 seconds.
• The combination meter receives the seat belt buckle switch signal (driver side) from seat belt buckle switch

(driver side) and transmits it to the BCM via CAN communication.

• The BCM receives seat belt buckle switch signal (driver side) from combination meter via CAN communica-

tion.

• The BCM detects seat belt reminder warning based on the received signal and transmits the buzzer output

signal to combination meter via CAN communication.

• The combination meter receives the buzzer output signal from BCM via CAN communication and sounds the

warning buzzer.

WARNING OPERATION CONDITIONS

If all of the following conditions are fulfilled, the warning buzzer will sound.
• Ignition switch ON
• Seat belt buckle switch (driver side) is ON (driver seat belt not fastened)

WARNING CANCEL CONDITIONS

Warning is canceled if any of the following conditions are fulfilled.
• Ignition switch OFF
• Seat belt buckle switch (driver side) is OFF (driver seat belt fastened)

JPNIA0750GB