Nissan GT-R. Manual - part 319

WCS

METER BUZZER CIRCUIT

WCS-15

< DTC/CIRCUIT DIAGNOSIS >

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METER BUZZER CIRCUIT

Description

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• The buzzer for warning chime system is installed in the combination meter.
• The combination meter sounds the alarm buzzer based on the signals transmitted from various units and

switches.

Diagnosis Procedure

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1.

CHECK POWER SUPPLY OF COMBINATION METER

Check power supply of combination meter. Refer to 

MWI-40, "COMBINATION METER : Diagnosis Proce-

dure"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair power supply circuit of combination meter. Refer to 

MWI-40, "COMBINATION METER :

Diagnosis Procedure"

.

WCS-16

< DTC/CIRCUIT DIAGNOSIS >

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT

Description

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Transmits a seat belt buckle switch signal to the combination meter.

Diagnosis Procedure

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1.

CHECK COMBINATION METER INPUT SIGNAL

1.

Turn ignition switch ON.

2.

Check voltage between combination meter harness connector terminal and ground.

Is the inspection result normal?

YES

>> Replace combination meter

NO

>> GO TO 2.

2.

CHECK SEAT BELT BUCKLE SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect combination meter connector and seat belt buckle switch (driver side) connector.

3.

Check continuity between combination meter harness connector terminal and seat belt buckle switch
(driver side) harness connector terminal.

4.

Check harness continuity between combination meter harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT

Check harness continuity between seat belt buckle switch (driver side) harness connector terminal and
ground.

Terminals

Condition

Voltage

(Approx.)

(+)

(-)

Combination meter

Ground

Connector

Terminal

M53

30

When seat belt is fastened

12 V

When seat belt is unfastened

0 V

Terminals

Continuity

(+)

(-)

Combination meter

Seat belt buckle switch (driver side)

Connector

Terminal

Connector

Terminal

M53

30

B12

3

Exist

Terminals

Continuity

(+)

(-)

Combination meter

Ground

Connector

Terminal

M53

30

Not existed

WCS

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT

WCS-17

< DTC/CIRCUIT DIAGNOSIS >

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Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

Component Inspection

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1.

CHECK SEAT BELT BUCKLE SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect the seat belt buckle switch (driver side) connector.

3.

Check continuity between terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the seat belt buckle. Refer to 

SB-8, "SEAT BELT BUCKLE : Removal and Installation"

.

Terminals

Continuity

(+)

(-)

Seat belt buckle switch (driver side)

Ground

Connector

Terminal

B12

2

Exist

Seat belt buckle switch 

(driver side)

Condition

Continuity

3

2

When seat belt (driver side) is fastened

Not existed

When seat belt (driver side) is unfastened

Exist

WCS-18

< DTC/CIRCUIT DIAGNOSIS >

WARNING CHIME SYSTEM

WARNING CHIME SYSTEM

Wiring Diagram - WARNING CHIME -

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For connector terminal arrangements, harness layouts, and alphabets in a 

 (option abbreviation; if not

described in wiring diagram), refer to 

GI-12, "Connector Information"

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JCNWA1146GB