Nissan GT-R. Manual - part 323

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

WCS-32

< SYMPTOM DIAGNOSIS >

THE LIGHT REMINDER WARNING DOES NOT SOUND

THE LIGHT REMINDER WARNING DOES NOT SOUND

Description

INFOID:0000000009188800

Light reminder warning chime does not sound even though headlamp is illuminated.

Diagnosis Procedure

INFOID:0000000009188801

1.

CHECK COMBINATION SWITCH (LIGHTING SWITCH) OPERATION

Check that the headlamps operate normally by operating the combination switch (lighting switch).

Do they operate normally?

YES

>> GO TO 2.

NO

>> (This work is recommended to be performed by NHPC.)

2.

CHECK DOOR SWITCH (DRIVER SIDE) SIGNAL CIRCUIT

Perform the check for the door switch (driver side) signal circuit. Refer to 

DLK-44, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK DOOR SWITCH (DRIVER SIDE) UNIT

Perform a unit check for the door switch (driver side). Refer to 

DLK-45, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace the BCM. Refer to 

BCS-20, "Removal and Installation"

.

NO

>> Replace the door switch (driver side). Refer to 

DLK-163, "Removal and Installation"

.

WCS

THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT SOUND

WCS-33

< SYMPTOM DIAGNOSIS >

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THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT
SOUND

Description

INFOID:0000000009188802

• Seat belt warning does not sound.
• Seat belt warning sounds continuously.

Trouble diagnosis procedure

INFOID:0000000009188803

1.

CHECK SEAT BELT WARNING LAMP

1.

Turn ignition switch ON.

2.

Check the operation of the seat belt warning lamp in the combination meter.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

CHECK BCM OUTPUT SIGNAL

Check if the light reminder warning chime is activated by performing BCM active test. (This work is recom-
mended to be performed by NHPC.)
Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

CHECK COMBINATION METER INPUT SIGNAL

Check if buzzer switches to proper condition (On/Off) on data monitor of combination meter. (This work is rec-
ommended to be performed by NHPC.)

Is the inspection result normal?

YES

>> Replace the combination meter.

NO

>> Replace the BCM. Refer to 

BCS-20, "Removal and Installation"

.

4.

CHECK SEAT BELT BUCKLE SWITCH CIRCUIT

Perform the check for the seat belt buckle switch circuit. Refer to 

SBC-5, "DRIVER SIDE : Diagnosis Proce-

dure"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair harness or connector.

5.

CHECK SEAT BELT BUCKLE SWITCH UNIT

Perform a unit check for the seat belt buckle switch. Refer to 

SBC-6, "DRIVER SIDE : Component Inspection

(Belt Buckle Switch)"

.

Is the inspection result normal?

YES

>> Replace the combination meter.

NO

>> Replace the seat belt buckle. Refer to 

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

.

Seat belt fastened

: OFF

Seat belt not fastened

: ON

Buzzer active condition

: On

Buzzer non-active condition

: Off

WCS-34

< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Working Range at a Regular Dealership

INFOID:0000000009188804

CAUTION:

The service items unmentioned on this manual are recommended to be performed by a GT-R certified
NISSAN dealer. Because those service items require special equipment and a GT-R certified technical
staff who completed special training.

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000009188805

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precaution for Battery Service

INFOID:0000000009188806

Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.