Nissan GT-R (2007-2014 year). VENTILATION SYSTEM / WARNING CHIME SYSTEM / WIPER & WASHER. Service Manual - part 4

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"

.

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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

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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.

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DRIVER CONTROLS

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SECTION 

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CONTENTS

WIPER & WASHER

SYSTEM DESCRIPTION  ..............................

2

FRONT WIPER AND WASHER SYSTEM  ..........

2

System Diagram ........................................................

2

System Description  ...................................................

2

Component Parts Location ........................................

4

Component Description ............................................

5

DIAGNOSIS SYSTEM (IPDM E/R) ......................

6

Diagnosis Description  ...............................................

6

DTC/CIRCUIT DIAGNOSIS  ..........................

8

WIPER AND WASHER FUSE  .............................

8

Description ................................................................

8

Diagnosis Procedure .................................................

8

FRONT WIPER STOP POSITION SIGNAL 
CIRCUIT ..............................................................

9

Diagnosis Procedure .................................................

9

FRONT WIPER MOTOR GROUND CIRCUIT ....

10

Diagnosis Procedure ...............................................

10

WASHER SWITCH  .............................................

11

Description ..............................................................

11

Component Inspection  ............................................

11

FRONT WIPER AND WASHER SYSTEM  .........

12

Wiring Diagram - FRONT WIPER AND WASHER 
SYSTEM -  ...............................................................

12

SYMPTOM DIAGNOSIS  ..............................

13

NORMAL OPERATING CONDITION .................

13

Description ..............................................................

13

PRECAUTION ..............................................

14

PRECAUTIONS ..................................................

14

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

14

Precaution for Procedure without Cowl Top Cover ....

14

Precaution for Battery Service .................................

14

REMOVAL AND INSTALLATION  ...............

15

WASHER TANK ................................................

15

Exploded View .........................................................

15

Removal and Installation  .........................................

15

WASHER PUMP  ...............................................

16

Exploded View .........................................................

16

Removal and Installation  .........................................

16

WASHER LEVEL SWITCH  ...............................

17

Removal and Installation  .........................................

17

FRONT WASHER NOZZLE AND TUBE  ..........

18

Hydraulic Layout ......................................................

18

Removal and Installation  .........................................

18

Inspection and Adjustment  ......................................

18

FRONT WIPER ARM  ........................................

21

Exploded View .........................................................

21

Removal and Installation  .........................................

21

Adjustment ...............................................................

22

WIPER BLADE ..................................................

23

Exploded View .........................................................

23

Removal and Installation  .........................................

23

Replacement ...........................................................

23

FRONT WIPER DRIVE ASSEMBLY .................

25

Exploded View .........................................................

25

Removal and Installation  .........................................

25

Disassembly and Assembly .....................................

26

WIPER AND WASHER SWITCH  ......................

27

Exploded View .........................................................

27

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< SYSTEM DESCRIPTION >

FRONT WIPER AND WASHER SYSTEM

SYSTEM DESCRIPTION

FRONT WIPER AND WASHER SYSTEM

System Diagram

INFOID:0000000009161830

System Description

INFOID:0000000009161831

OUTLINE

The front wiper is controlled by each function of BCM and IPDM E/R.

Control by BCM

• Combination switch reading function
• Front wiper control function

Control by IPDM E/R

• Front wiper control function
• Relay control function

FRONT WIPER BASIC OPERATION 

• BCM detects the combination switch condition by the combination switch reading function.
• BCM transmits the front wiper request signal to IPDM E/R with CAN communication depending on each

operating condition of the front wiper.

• IPDM E/R turns ON/OFF the integrated front wiper relay and the front wiper high relay according to the front

wiper request signal. IPDM E/R provides the power supply to operate the front wiper HI/LO operation.

FRONT WIPER LO OPERATION

• BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication according to the

front wiper LO operating condition.

Front wiper LO operating condition

- Ignition switch ON
- Front wiper switch LO or front wiper switch MIST (while pressing)
• IPDM E/R turns ON the integrated front wiper relay according to the front wiper request signal (LO).

FRONT WIPER HI OPERATION

• BCM transmits the front wiper request signal (HI) to IPDM E/R with CAN communication according to the

front wiper HI operating condition.

Front wiper HI operating condition

- Ignition switch ON
- Front wiper switch HI
• IPDM E/R turns ON the integrated front wiper relay and the front wiper high relay according to the front wiper

request signal (HI).

FRONT WIPER INT OPERATION

JPLIA1261GB

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FRONT WIPER AND WASHER SYSTEM

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< SYSTEM DESCRIPTION >

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• BCM transmits the front wiper request signal (INT) to IPDM E/R with CAN communication depending on the

front wiper INT operating condition and intermittent operation delay interval according to the wiper intermit-
tent dial position.

Front wiper INT operating condition

- Ignition switch ON
- Front wiper switch INT
• IPDM E/R turns ON the integrated front wiper relay so that the front wiper is operated only once according to

the front wiper request signal (INT).

• BCM detects stop position/except stop position of the front wiper motor according to the front wiper stop

position signal received from IPDM E/R with CAN communication.

• BCM transmits the front wiper request signal (INT) again after the intermittent operation delay interval.

NOTE:
Factory setting of the front wiper intermittent operation is the operation without vehicle speed.

Front wiper intermittent operation

BCM determines intermittent operation delay interval according to a wiper volume.

Unit: Second

FRONT WIPER AUTO STOP OPERATION

• BCM stops transmitting the front wiper request signal when the front wiper switch is turned OFF.
• IPDM E/R detects the front wiper stop position signal from the front wiper motor and detects the front wiper

motor position (stop position/except stop position).

• When the front wiper request signal is stopped, IPDM E/R turns ON the front wiper relay until the front wiper

motor returns to the stop position.

JPLIA1256GB

Wiper intermittent dial position

Intermittent operation interval

Intermittent operation delay Interval (s)

1

Short

↑

↓

Long

0.4

2

2

3

5

4

8

5

12

6

16

7

21

JPLIA0410GB

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< SYSTEM DESCRIPTION >

FRONT WIPER AND WASHER SYSTEM

NOTE:
• BCM stops the transmitting of the front wiper request signal when the ignition switch OFF.
• IPDM E/R turns the front wiper relay OFF when the ignition switch OFF.

FRONT WIPER OPERATION LINKED WITH WASHER

• BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication according to the

washer linked operating condition of the front wiper.

• BCM transmits the front wiper request signal (LO) so that the front wiper operates approximately 2 times

when the front washer switch OFF is detected.

Washer linked operating condition of front wiper

- Ignition switch ON
- Front washer switch ON (0.4 second or more)
• IPDM E/R turns ON the integrated front wiper relay according to the front wiper request signal (LO).
• The washer pump is grounded through the combination switch when the front washer switch ON.

Component Parts Location

INFOID:0000000009161832

JPLIA1174ZZ

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Component Description

INFOID:0000000009161833

1.

Combination switch

2.

Combination meter

3.

IPDM E/R

4.

BCM

5.

Washer pump

6.

Front wiper motor

A.

Engine room dash panel (RH)

B.

Dash side lower (Passenger side)

C.

Radiator core support (RH)

D.

Cowl top, left side of engine room

Part

Description

BCM

• Detects the each switch status by the combination switch reading function.
• Requests (with CAN communication) the front wiper relay and the front wiper high relay ON to 

IPDM E/R.

IPDM E/R

• Controls the integrated relay according to the request (with CAN communication) from BCM.
• Performs the auto stop control of the front wiper.

Combination switch
(Wiper & washer switch)

Refer to 

BCS-5, "System Description"

.

Combination meter

Transmits the vehicle speed signal to BCM with CAN communication.

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< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (IPDM E/R)

DIAGNOSIS SYSTEM (IPDM E/R)

Diagnosis Description

INFOID:0000000009161836

AUTO ACTIVE TEST

Description

In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation.
• Front wiper (LO, HI)
• Parking lamps
• License plate lamps
• Side marker lamps
• Tail lamps
• Headlamps (LO, HI)
• A/C compressor (magnet clutch)
• Cooling fan (cooling fan control module)

Operation Procedure

1.

Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper
operation)
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.

2.

Turn the ignition switch OFF.

3.

Turn the ignition switch ON, and within 20 seconds, press the driver door switch 10 times. Then turn the
ignition switch OFF.

CAUTION:

Close passenger door.

4.

Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test
starts.

5.

After a series of the following operations is repeated 3 times, auto active test is completed.

NOTE:
When auto active test mode has to be cancelled halfway through test, turn the ignition switch OFF.

CAUTION:

• If auto active test mode cannot be actuated, check door switch system. Refer to 

DLK-44,

"Component Function Check"

.

• Do not start the engine.

Inspection in Auto Active Test Mode

When auto active test mode is actuated, the following 5 steps are repeated 3 times.

*: Outputs duty ratio of 50% for 5 seconds 

→

 duty ratio of 100% for 5 seconds on the cooling fan control module.

Operation 
sequence

Inspection location

Operation

1

Front wiper

LO for 5 seconds 

→

 HI for 5 seconds

2

• Parking  lamps
• License plate lamps
• Side marker lamps
• Tail lamps

10 seconds

3

Headlamps

LO 

⇔

 HI 5 times

4

A/C compressor (magnet clutch)

ON 

⇔

 OFF 5 times

5

*

Cooling fan

MID for 5 seconds 

→

 HI for 5 seconds

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DIAGNOSIS SYSTEM (IPDM E/R)

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Concept of auto active test

• IPDM E/R starts the auto active test with the door switch signals transmitted by BCM via CAN communica-

tion. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto
active test starts successfully.

• The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated.

Diagnosis chart in auto active test mode

NNMIA0051GB

Symptom

Inspection contents

Possible cause

Any of the following components do not operate

• Parking  lamps
• License plate lamps
• Side marker lamps
• Tail lamps
• Headlamp (HI, LO)
• Front wiper (HI, LO)

Perform auto active test.
Does the applicable system 
operate?

YES

BCM signal input circuit

NO

• Lamp or motor
• Lamp or motor ground circuit
• Harness or connector be-

tween IPDM E/R and appli-
cable system

• IPDM E/R

A/C compressor does not operate

Perform auto active test.
Does the magnet clutch oper-
ate?

YES

• A/C amp. signal input circuit
• CAN communication signal 

between A/C amp. and ECM

• CAN communication signal 

between ECM and IPDM E/R

NO

• Magnet clutch
• Harness or connector be-

tween IPDM E/R and magnet 
clutch

• IPDM E/R

Cooling fan does not operate

Perform auto active test.
Does the cooling fan operate?

YES

• ECM signal input circuit
• CAN communication signal 

between ECM and IPDM E/R

NO

• Cooling fan
• Harness or connector be-

tween cooling fan and cool-
ing fan control module

• Cooling fan control module
• Harness or connector be-

tween IPDM E/R and cooling 
fan control module

• Cooling fan relay
• Harness or connector be-

tween IPDM E/R and cooling 
fan relay

• IPDM E/R

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< DTC/CIRCUIT DIAGNOSIS >

WIPER AND WASHER FUSE

DTC/CIRCUIT DIAGNOSIS

WIPER AND WASHER FUSE

Description

INFOID:0000000009161838

Fuse list

Diagnosis Procedure

INFOID:0000000009161839

1.

CHECK FUSES

Check that the following fuses are not fusing.

Is the fuse fusing?

YES

>> Replace the fuse with a new one after repairing the applicable circuit.

NO

>> The fuse is normal.

Unit

Location

No.

Capacity

Front wiper motor

IPDM E/R

60

30 A

Washer pump

IPDM E/R

47

10 A

Unit

Location

No.

Capacity

Front wiper motor

IPDM E/R

60

30 A

Washer pump

IPDM E/R

47

10 A

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FRONT WIPER STOP POSITION SIGNAL CIRCUIT

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FRONT WIPER STOP POSITION SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009161845

1.

CHECK FRONT WIPER MOTOR OUTPUT VOLTAGE

1.

Turn the ignition switch OFF.

2.

Disconnect front wiper motor connector.

3.

Turn the ignition switch ON.

4.

Check voltage between IPDM E/R harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK FRONT WIPER MOTOR SHORT CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect IPDM E/R connector.

3.

Check continuity between IPDM E/R harness connector and ground.

Does continuity exist?

YES

>> Repair the harness or connector.

NO

>> Replace IPDM E/R.

3.

CHECK FRONT WIPER MOTOR CIRCUIT CONTINUITY

1.

Turn the ignition switch OFF.

2.

Disconnect IPDM E/R connector.

3.

Check continuity between IPDM E/R harness connector and front wiper motor harness connector.

Does continuity exist?

YES

>> Replace front wiper motor.

NO

>> Repair the harness or connector.

Terminals

Voltage (Approx.)

(+)

(

−

)

IPDM E/R

Ground

Connector

Terminal

E5

16

Battery voltage

IPDM E/R

Ground

Continuity

Connector

Terminal

E5

16

Not existed

IPDM E/R 

Front wiper motor

Continuity

Connector

Terminal

Connector

Terminal

E5

16

E42

5

Existed

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< DTC/CIRCUIT DIAGNOSIS >

FRONT WIPER MOTOR GROUND CIRCUIT

FRONT WIPER MOTOR GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000009161846

1.

CHECK FRONT WIPER MOTOR (GND) OPEN CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect front wiper motor connector.

3.

Check continuity between front wiper motor harness connector and ground.

Does continuity exist?

YES

>> Front wiper motor ground circuit is normal.

NO

>> Repair the harness or connector.

Front wiper motor

Ground

Continuity

Connector

Terminal

E42

2

Existed

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WASHER SWITCH

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WASHER SWITCH

Description

INFOID:0000000009161847

Washer switch is integrated with combination switch.

Component Inspection

INFOID:0000000009161848

1.

CHECK WIPER SWITCH

1.

Turn the ignition switch OFF.

2.

Disconnect combination switch connector.

3.

Check continuity between the combination switch terminals.

Does continuity exist?

YES

>> Wiper and washer switch is normal.

NO

>> Replace combination switch (Wiper and washer switch).

JPLIA0310ZZ

Combination switch

Condition

Continuity

Terminal

1

6

Front washer switch ON

Existed

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< DTC/CIRCUIT DIAGNOSIS >

FRONT WIPER AND WASHER SYSTEM

FRONT WIPER AND WASHER SYSTEM

Wiring Diagram - FRONT WIPER AND WASHER SYSTEM -

INFOID:0000000009161849

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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NORMAL OPERATING CONDITION

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SYMPTOM DIAGNOSIS

NORMAL OPERATING CONDITION

Description

INFOID:0000000009161860

FRONT WIPER MOTOR PROTECTION FUNCTION

• IPDM E/R may stop the front wiper to protect the front wiper motor if any obstruction (operation resistance)

such as a large amount of snow is detected during the front wiper operation.

• At that time turn OFF the front wiper and remove the foreign object. Then wait for approximately 20 seconds

or more and reactivate the front wiper. The wiper will operate normally.

2014 GT-R