Nissan GT-R (2007-2014 year). VENTILATION SYSTEM / WARNING CHIME SYSTEM / WIPER & WASHER. Service Manual - part 3

 

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Nissan GT-R (2007-2014 year). VENTILATION SYSTEM / WARNING CHIME SYSTEM / WIPER & WASHER. Service Manual - part 3

 

 

WCS-16

< DTC/CIRCUIT DIAGNOSIS >

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT

Description

INFOID:0000000009188790

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

Diagnosis Procedure

INFOID:0000000009188791

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

2014 GT-R

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

INFOID:0000000009188792

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

2014 GT-R

WCS-18

< DTC/CIRCUIT DIAGNOSIS >

WARNING CHIME SYSTEM

WARNING CHIME SYSTEM

Wiring Diagram - WARNING CHIME -

INFOID:0000000009188793

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

 (option abbreviation; if not

described in wiring diagram), refer to 

GI-12, "Connector Information"

.

JCNWA1146GB

2014 GT-R

WCS

COMBINATION METER

WCS-19

< ECU DIAGNOSIS INFORMATION >

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ECU DIAGNOSIS INFORMATION

COMBINATION METER

Reference Value

INFOID:0000000009188794

TERMINAL LAYOUT

INPUT/OUTPUT SIGNAL STANDARD

JSNIA0096ZZ

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

1

(V)

Ground

Battery power supply

Input

Igni-

tion 

switch 

OFF

—

Battery voltage

2

(W)

Ground

Ignition power supply

Input

Igni-

tion 

switch 

ON

—

Battery voltage

3

(B)

Ground

Ground

—

Igni-

tion 

switch 

ON

—

0  V

5

(B)

Ground

Ground

—

Igni-

tion 

switch 

ON

—

0  V

6

(W)

Ground

Meter control switch 
ground

—

Igni-

tion 

switch 

ON

—

0  V

7

(Y)

Ground

A/C auto amp. connection 
recognition signal

Input

Igni-

tion 

switch

ON

—

5  V

8

(SB)

Ground

Ambient sensor ground

—

Igni-

tion 

switch

ON

—

0  V

9

(P)

Ground

Ambient sensor

Input

Igni-

tion 

switch

ON

—

This work is recommended to be 

performed by NHPC.

2014 GT-R

WCS-20

< ECU DIAGNOSIS INFORMATION >

COMBINATION METER

12

(L)

Ground

Vehicle speed signal (2-
pulse)

Output

Igni-

tion 

switch 

ON

Vehicle speed is approxi-
mately 40 km/h (25 MPH)

NOTE:
The maximum voltage varies de-
pending on the specification 
(destination unit).

13

(V)

Ground

Vehicle speed signal (8-
pulse)

Output

Igni-

tion 

switch 

ON

Vehicle speed is approxi-
mately 40 km/h (25 MPH)

NOTE:
The maximum voltage varies de-
pending on the specification 
(destination unit).

14

(B)

Ground

Oil pressure sensor 
ground

—

Igni-

tion 

switch

ON

—

0  V

15

(R)

Ground

Air bag signal

Input

Igni-

tion 

switch

ON

Air bag warning lamp ON

5 V

Air bag warning lamp OFF

0 V

18

(L)

Ground

Fuel level sensor signal 
ground

—

Igni-

tion 

switch

ON

—

0  V

19

(R)

Ground

Oil level sensor ground

—

Igni-

tion 

switch

ON

—

0  V

20

(W)

Ground

Oil level sensor signal

Input

Igni-

tion 

switch

ON

—

This work is recommended to be 
performed by NHPC.

21

(L)

Ground

CAN-H

—

Igni-

tion 

switch

ON

—

—

22

(P)

Ground

CAN-L

—

Igni-

tion 

switch

ON

—

—

23

(LG)

6

(W)

Illumination control switch 
signal (–)

Input

Igni-

tion 

switch 

ON

When  

switch 

is 

pressed

0 V

Other than the above

5 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

JSNIA0015GB

JSNIA0012GB

2014 GT-R

WCS

COMBINATION METER

WCS-21

< ECU DIAGNOSIS INFORMATION >

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24

(BR)

6

(W)

Illumination control switch 
signal (+)

Input

Igni-

tion 

switch 

ON

When 

 switch is 

pressed

0 V

Other than the above

5 V

25

(G)

6

(W)

Trip A/B reset switch signal

Input

Igni-

tion 

switch 

ON

When trip A/B reset switch 
is pressed

0 V

Other than the above

5 V

26

(O)

6

(W)

Enter switch signal

Input

Igni-

tion 

switch 

ON

When enter switch is 
pressed

0 V

Other than the above

5 V

27

(SB)

6

(W)

Select switch signal

Input

Igni-

tion 

switch 

ON

When select switch is 
pressed

0 V

Other than the above

5 V

28

(BR)

Ground

Alternator signal

Input

Igni-

tion 

switch 

ON

Charging warning lamp 
ON

0 V

Charging warning lamp 
OFF

12 V

29

(G)

Ground

Seat belt buckle switch sig-
nal (passenger side)

Input

Igni-

tion 

switch 

ON

• When getting in the pas-

senger seat

• When passenger seat 

belt is fastened.

12 V

• When getting in the pas-

senger seat

• When passenger seat 

belt is unfastened

0 V

30

(LG)

Ground

Seat belt buckle switch sig-
nal (driver side)

Input

Igni-

tion 

switch 

ON

When driver seat belt is 
fastened

12 V

When driver seat belt is 
unfastened

0 V

31

(V)

Ground

Parking brake switch sig-
nal

Input

Igni-

tion 

switch 

ON

Parking brake applied

0 V

Parking brake released

5 V

32

(V)

Ground

Brake fluid level switch sig-
nal

Input

Igni-

tion 

switch 

ON

Brake fluid level is normal

0 V

Brake fluid level is MIN lev-
el or less

5 V

33

(L)

Ground

Washer level switch signal

Input

Igni-

tion 

switch

ON

Low washer fluid warning 
display ON

0 V

Low washer fluid warning 
display OFF

5 V

34

(GR)

Ground

Oil pressure sensor power

Output

Igni-

tion 

switch 

ON

—

5  V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

2014 GT-R

WCS-22

< ECU DIAGNOSIS INFORMATION >

COMBINATION METER

35

(W)

Ground

Oil pressure sensor signal

Input

Igni-

tion 

switch 

ON

—

Refer to 

MWI-45, "Component 

Inspection"

. 

38

(O)

Ground

Fuel level sensor signal

Input

Igni-

tion 

switch

ON

—

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

NNNIA0108ZZ

2014 GT-R

WCS

COMBINATION METER

WCS-23

< ECU DIAGNOSIS INFORMATION >

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Wiring Diagram - METER -

INFOID:0000000009188795

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

 (option abbreviation; if not

described in wiring diagram), refer to 

GI-12, "Connector Information"

.

JCNWA3092GB

2014 GT-R

WCS-24

< ECU DIAGNOSIS INFORMATION >

COMBINATION METER

Fail-safe

INFOID:0000000009188796

FAIL-SAFE

If the CAN communication with each unit is activates, the combination meter broken the fail-safe control.

JCNWA3093GB

2014 GT-R

WCS

COMBINATION METER

WCS-25

< ECU DIAGNOSIS INFORMATION >

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System

Processing

Speedometer

Returns to zero when communication is 
blocked.

Tachometer

Engine coolant temperature gauge

Meter illumination control

Shifts to night mode when communication is 
blocked.

Shift position indicator

Turned OFF when communication is blocked.

Information display

Door open warning

Indication is turned OFF when communication 
is blocked.

Trunk open warning

Parking brake release warning

Shift “ P ” warning

Transmission system check

Shift lever position warning

Transmission clutch high temperature warning

Transmission oil high temperature warning

Transmission system warning

Run-flat tire warning

Low tire pressure warning

Tire pressure monitoring system warning

AWD clutch high temperature warning

Front/rear tire size discrepancy warning

AWD system warning

Anti-lock braking system (ABS) warning

Vehicle dynamic control (VDC) system warning

Engine system warning

CRUISE control system warning

CRUISE control system status

Vehicle speed display

0 km/h (0 MPH) is indicated when communi-
cation is blocked.

Possible driving distance

Displays the last calculation result calculated 
under a normal status when communication is 
blocked.

Average fuel consumption

Instantaneous fuel consumption

Average vehicle speed

Warning buzzer

Warning is turned OFF when communication 
is blocked.

2014 GT-R

WCS-26

< ECU DIAGNOSIS INFORMATION >

COMBINATION METER

Warning lamp/indicator 
lamp

ABS warning lamp

Turned ON when communication is broken.

VDC warning lamp

Brake warning lamp

AWD warning lamp

Malfunction indicator lamp (MIL)

Tire pressure warning lamp

Blinks first, then illuminates after approxi-
mately 1 minute.

High beam indicator lamp

Turned OFF when communication is broken.

Turn signal indicator lamp

Tail lamp indicator lamp

CRUISE indicator lamp

SET indicator lamp

KEY warning lamp

Up-shift indicator (green)

Up-shift indicator (yellow)

Up-shift indicator (red)

Transmission check warning lamp

VDC OFF indicator lamp

System

Processing

2014 GT-R

WCS

BCM (BODY CONTROL MODULE)

WCS-27

< ECU DIAGNOSIS INFORMATION >

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BCM (BODY CONTROL MODULE)

Wiring Diagram - BCM -

INFOID:0000000009188797

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

 (option abbreviation; if not

described in wiring diagram), refer to 

GI-12, "Connector Information"

.

JRMWC6657GB

2014 GT-R

WCS-28

< ECU DIAGNOSIS INFORMATION >

BCM (BODY CONTROL MODULE)

JRMWC6658GB

2014 GT-R

WCS

BCM (BODY CONTROL MODULE)

WCS-29

< ECU DIAGNOSIS INFORMATION >

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JRMWC6659GB

2014 GT-R

WCS-30

< ECU DIAGNOSIS INFORMATION >

BCM (BODY CONTROL MODULE)

JRMWC6660GB

2014 GT-R

WCS

THE PARKING BRAKE RELEASE WARNING CONTINUES SOUNDING, OR 

DOES NOT SOUND

WCS-31

< SYMPTOM DIAGNOSIS >

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SYMPTOM DIAGNOSIS

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

Description

INFOID:0000000009188798

• The parking brake warning buzzer sounds continuously during vehicle travel though the parking brake is

released.

• The parking brake warning buzzer does not sound at all even though driving the vehicle with the parking

brake applied.

Diagnosis Procedure

INFOID:0000000009188799

1.

CHECK PARKING BRAKE WARNING LAMP

1.

Start the engine.

2.

Check the operation of the brake warning lamp by operating the parking brake.

Is the inspection result normal?

YES

>> Replace the combination meter.

NO

>> GO TO 2.

2.

CHECK PARKING BRAKE SWITCH SIGNAL CIRCUIT

Perform a check for the parking brake switch signal circuit. Refer to 

MWI-46, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK PARKING BRAKE SWITCH UNIT

Perform a unit check for the parking brake switch. Refer to 

MWI-46, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace the combination meter.

NO

>> Replace the parking brake switch.

When parking brake is applied

: ON

When parking brake is released

: OFF

2014 GT-R

 

 

 

 

 

 

 

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