Infiniti G37 Coupe. Manual - part 1383

 

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Infiniti G37 Coupe. Manual - part 1383

 

 

WCS-4

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

Connect CONSULT-III and perform “Self Diagnostic Result” of “METER/M&A”. Refer to 

MWI-37, "CONSULT-

III Function (METER/M&A)"

.

Are self-diagnosis results normal?

YES

>> GO TO 4.

NO

>> GO TO 5.

4.

NARROW DOWN MALFUNCTIONING PARTS BY SYMPTOM DIAGNOSIS

Perform symptom diagnosis and narrow down the malfunctioning parts.

>> GO TO 5.

5.

REPAIR OR REPLACE MALFUNCTIONING PARTS

Repair or replace malfunctioning parts.
NOTE:
If DTC is displayed, erase DTC after repair or replace malfunctioning parts.

>> GO TO 6.

6.

FINAL CHECK

Check that the warning buzzer in the combination meter operates normally.
Does it operate normally?

YES

>> INSPECTION END

NO

>> GO TO 1.

WCS

WARNING CHIME SYSTEM

WCS-5

< FUNCTION DIAGNOSIS >

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FUNCTION DIAGNOSIS

WARNING CHIME SYSTEM

WARNING CHIME SYSTEM

WARNING CHIME SYSTEM : System Diagram

INFOID:0000000001606804

WARNING CHIME SYSTEM : System Description

INFOID:0000000001606805

COMBINATION METER

• The buzzer (1) for warning chime system is installed in the combi-

nation meter.

• The buzzer sounds when the combination meter receives buzzer

output signal from each unit through unified meter and A/C amp.

UNIFIED METER AND A/C AMP.

The unified meter and A/C amp. transmits the buzzer output signal received from BCM with CAN communica-
tion line to the combination meter.

BCM

BCM receives signals from various units and transmits a buzzer output signal to the unified meter and A/C
amp. with CAN communication line if it judges that the warning buzzer should be activated.

BCM warning function list

JSNIA0619GB

JSNIA0037GB

Warning functions

Signal name

Light reminder warning chime

• Lighting switch position signal
• Driver side door switch signal

Seat belt warning chime

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

WCS-6

< FUNCTION DIAGNOSIS >

WARNING CHIME SYSTEM

WARNING CHIME SYSTEM : Component Parts Location

INFOID:0000000001606806

WARNING CHIME SYSTEM : Component Description

INFOID:0000000001606807

JPNIA0502ZZ

1.

BCM

2.

Parking brake switch (A/T models)

3.

Combination meter

4.

Combination switch
(Lighting switch)

5.

Unified meter and A/C amp.

6.

Front driver side door switch

7.

Seat belt buckle switch (driver side)

8.

Parking brake switch (M/T models)

A.

Dash side lower (passenger side)

B.

Behind cluster lid C (back)

Unit

Description

Combination meter

• Receives a buzzer output signal from the unified meter and A/C amp. and sounds the buzzer.
• Judges whether the parking brake is released from the vehicle speed signal received from the 

unified meter and A/C amp. with CAN communication line and the parking brake switch signal 
from the parking brake switch, and sounds the buzzer if necessary. 

Unified meter and A/C amp.

• Receives the seat belt buckle switch signal from the seat belt buckle switch and transmits it to 

BCM with CAN communication line.

• Receives a buzzer output signal from BCM with CAN communication line and transmits it to 

the combination meter by means of communication line.

BCM

Transmits signals provided by various units to the unified meter and A/C amp. with CAN com-
munication line.

ABS actuator and electric unit 
(control unit)

Transmits the vehicle speed signal to BCM with CAN communication line.

Seat belt buckle switch (driver 
side)

Transmits a seat belt buckle switch (driver side) signal to the unified meter and A/C amp.

Combination switch
(Lighting switch)

Transmits the lighting switch position signal to BCM.

WCS

WARNING CHIME SYSTEM

WCS-7

< FUNCTION DIAGNOSIS >

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LIGHT REMINDER WARNING CHIME

LIGHT REMINDER WARNING CHIME : System Diagram

INFOID:0000000001606808

LIGHT REMINDER WARNING CHIME : System Description

INFOID:0000000001606809

DESCRIPTION

With ignition switch in OFF or ACC position, front driver side door open, and lighting switch in 1ST or 2ND
position, the light warning chime will sound. 
• BCM detects ignition switch in OFF or ACC position, driver side door switch ON, and lighting switch in 1ST

or 2ND position. And then transmits buzzer output signal (light reminder warning chime) to unified meter and
A/C amp. with CAN communication line.

• Unified meter and A/C amp. transmits buzzer output signal (light reminder warning chime) to combination

meter with 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.
• Lighting switch is at 1st or 2nd position
• Ignition switch is at OFF or ACC
• Front driver side door switch is ON

WARNING CANCEL CONDITIONS

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

Front driver side door switch

Transmits the front driver side door switch signal to BCM.

Parking brake switch

Refer to 

MWI-61, "Description"

.

Unit

Description

JSNIA0620GB

 

 

 

 

 

 

 

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