Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-
tion occurred) as much as possible when the customer brings the vehicle in.

>> GO TO 2.

REPRODUCE THE MALFUNCTION INFORMATION

Check the malfunction on the vehicle that the customer describes.
Inspect the relation of the symptoms and the condition when the symptoms occur.

>> GO TO 3.

IDENTIFY THE MALFUNCTIONING SYSTEM WITH “SYMPTOM DIAGNOSIS”

Use “Symptom diagnosis” from the symptom inspection result in step 2 and then identify where to start per-
forming the diagnosis based on possible causes and symptoms.

>> GO TO 4.

IDENTIFY THE MALFUNCTIONING PARTS WITH “COMPONENT DIAGNOSIS”

Perform the diagnosis with “Component diagnosis” of the applicable system.

>> GO TO 5.

REPAIR OR REPLACE THE MALFUNCTIONING PARTS

Repair or replace the specified malfunctioning parts.

>> GO TO 6.

FINAL CHECK

Check that malfunctions are not reproduced when obtaining the malfunction information from the customer,
referring to the symptom inspection result in step 2.

Are the malfunctions corrected?

YES

>> INSPECTION END

>> GO TO 3.

2014 GT-R

SE-4

< SYSTEM DESCRIPTION >

POWER SEAT FOR DRIVER SIDE

SYSTEM DESCRIPTION

POWER SEAT FOR DRIVER SIDE

System Description

INFOID:0000000009162891

SLIDING OPERATION

While operating the sliding switch located in power seat switch, sliding motor operates and makes possible the
seat forward and backward position adjustment.

RECLINING OPERATION

While operating the reclining switch located in power seat switch, reclining motor operates and makes possi-
ble the seat back forward and backward position adjustment.

LIFTING OPERATION

• While operating the lifting switch located in power seat switch, lifting motor operates and makes possible the

rear portion of seat cushion up and down position adjustment.

• Thigh support motor is activated and the front portion of seat cushion can be adjusted upward or downward,

while thigh support switch being operated.

Component Parts Location

INFOID:0000000009162892

Component Description

INFOID:0000000009162893

JMJIA5200ZZ

Thigh support switch

Power seat switch (driver side)

Thigh support motor

Lifting motor (rear)

Reclining motor

Sliding motor

Behind the seat cushion outer finish-
er outside

Built in seatback

Built in seat cushion

Item

Function

Power seat switch

Built-in reclining switch, sliding switch and lifting switch, controls the power supplied to each motor.

Thigh support switch

Detect the operation of thigh support motor.

Lifting motor

Operates seat lift up and down.

2014 GT-R

POWER SEAT FOR DRIVER SIDE

SE-5

< SYSTEM DESCRIPTION >

Reclining motor

With the power supplied to power seat switch, operates the forward and backward of seat back.

Sliding motor

With the power supplied to power seat switch, operates the forward and backward slide of seat.

Thigh support motor

Operates the front portion of seat cushion up and down.

Item

Function

2014 GT-R

SE-6

< SYSTEM DESCRIPTION >

POWER SEAT FOR PASSENGER SIDE

POWER SEAT FOR PASSENGER SIDE

System Description

INFOID:0000000009162894

SLIDING OPERATION

• While operating the sliding switch located in power seat switch, sliding motor operates and makes possible

the seat forward and backward position adjustment.

RECLINING OPERATION

While operating the reclining switch located in power seat switch, reclining motor operates and makes possi-
ble the seatback forward and backward position adjustment.

Component Parts Location

INFOID:0000000009162895

Component Description

INFOID:0000000009162896

JMJIA5201ZZ

Power seat switch

Reclining motor

Sliding motor

Sliding relay (backward)

Sliding relay (forward)

Built in seatback

Built in seat cushion

Back side of seat cushion

Item

Function

Power seat switch

Built-in reclining switch and sliding switch controls the power supplied to each motor.

Sliding switch

Detect the operation of sliding motor.

Reclining motor

With the power supplied to power seat switch, operates the forward and backward of seatback.

Sliding motor

With the power supplied to power seat switch, operates the forward and backward slide of seat.

2014 GT-R

HEATED SEAT (DRIVER SIDE)

SE-7

< SYSTEM DESCRIPTION >

HEATED SEAT (DRIVER SIDE)

System Diagram

INFOID:0000000009162897

System Description

INFOID:0000000009162898

• Heated seat is activated by heated seat switch while ignition switch is ON, and is equipped with the function

to warm seat cushion and seatback.

• Heated seat is equipped with the LO/HI temperature adjustment function that adjusts temperature by operat-

ing heated seat switch to the optimal position.

OPERATION DESCRIPTION

• When operating heated seat switch to either position of LO/HI while ignition switch is ON, indicator illumi-

nates, heated seat control unit supplies power supply to heater unit, and warms seat cushion and seatback.

• Heat sensor that is built in seat cushion heater detects seat cushion heater temperature and outputs to

heated seat control unit.

• Heated seat control unit monitors the heated seat switch position and heater sensor temperature, and inter-

rupts power supply to heater unit when the heat sensor temperature reaches preset temperature.

JMJIA5207GB

2014 GT-R

SE-8

< SYSTEM DESCRIPTION >

HEATED SEAT (DRIVER SIDE)

Component Parts Location

INFOID:0000000009162899

Component Description

INFOID:0000000009162900

JMJIA5202ZZ

seatback heater

Seat cushion heater

Heated seat switch

Heated seat control unit

Back side of seat cushion

Item

Function

Heated seat control unit

• Activates seat cushion heater and seatback heater via heated seat switch signal.
• Controls heated seat system.

Heated seat switch

• Supplies power supply to each heater.
• Equips indicator that indicates the operating condition.
• Changes the number of activated heaters depending on the HI or LO switch position.

Heat sensor

Outputs seat cushion temperature to heated seat control unit

Seat cushion heater

Built in seatback and is activated by power supply from heated seat switch.

Seatback heater

Built in seatback and is activated by power supply from heated seat switch.

2014 GT-R

HEATED SEAT (PASSENGER SIDE)

SE-9

< SYSTEM DESCRIPTION >

HEATED SEAT (PASSENGER SIDE)

System Description

INFOID:0000000009162901

• By turning seat heated switch ON, seat cushion heater and seat back heater are activated.
• By switching seat switch to HI or LO, the number of activated heaters changes and seat warming seed is

adjusted.

Component Parts Location

INFOID:0000000009162902

Component Description

INFOID:0000000009162903

JMJIA5846ZZ

Seat back heater

Seat cushion heater

Heated seat switch

Item

Function

Heated seat switch

• Supplies power supply to each heater.
• Changes the number of activated heaters depending on the HI or LO switch position.

Seat cushion heater

Built in seat cushion and is activated by power supply from heated seat switch.

Seat back heater

Built in seat back and is activated by power supply from heated seat switch.

2014 GT-R

SE-10

< ECU DIAGNOSIS INFORMATION >

HEATED SEAT CONTROL UNIT (DRIVER SIDE)

ECU DIAGNOSIS INFORMATION

HEATED SEAT CONTROL UNIT (DRIVER SIDE)

Reference Value

INFOID:0000000009162904

TERMINAL LAYOUT

PHYSICAL VALUES

*: Voltage is repeated within the value shown as per the following list depending on heater unit temperature.

JMJIA5044ZZ

Terminal No.

(Wire color)

Description

Condition

Voltage (V)

(Approx.)

(+)

(–)

Signal name

Input/

Output

(R)

Ground

IGN power supply

Input

Ignition switch

OFF or ACC

Battery voltage

(B)

Ground

–

Ignition switch ON

(W)

Ground

Heat sensor signal

Input

Heated seat
switch

OFF

10.87 – 11.02*

11.31 – 11.43*

(R/W)

Ground

Seat cushion heater pow-
er supply

Output

Heated seat

Operate

0 – Battery voltage*

Other than above

(L/W)

Ground

Heated seat operation sig-
nal

Input

Heated seat

Operate

Battery voltage

Other than above

(R/L)

Ground

Heated seat switch signal

Input

Heated seat
switch

OFF

12.24

12.90

2014 GT-R

POWER SEAT FOR DRIVER SIDE

SE-11

< WIRING DIAGRAM >

WIRING DIAGRAM

POWER SEAT FOR DRIVER SIDE

Wiring Diagram - POWER SEAT FOR DRIVER SIDE -

INFOID:0000000009162905

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

(option abbreviation; if not

described in wiring diagram), refer to

GI-12, "Connector Information"

JCJWA0439GB

2014 GT-R

SE-12

< WIRING DIAGRAM >

POWER SEAT FOR PASSENGER SIDE

POWER SEAT FOR PASSENGER SIDE

Wiring Diagram - POWER SEAT FOR PASSENGER SIDE -

INFOID:0000000009162906

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

(option abbreviation; if not

described in wiring diagram), refer to

GI-12, "Connector Information"

JCJWA1374GB

2014 GT-R

HEATED SEAT

SE-13

< WIRING DIAGRAM >

HEATED SEAT

Wiring Diagram - HEATED SEAT -

INFOID:0000000009162907

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

(option abbreviation; if not

described in wiring diagram), refer to

GI-12, "Connector Information"

JCJWA1378GB

2014 GT-R

SE-14

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

HEATED SEAT CONTROL UNIT

HEATED SEAT CONTROL UNIT : Diagnosis Procedure

INFOID:0000000009162908

CHECK FUSE

Check that the following fuse is not fusing.

Is the inspection result normal?

YES

>> GO TO 2.

>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.

CHECK POWER SUPPLY

Turn ignition switch OFF.

Disconnect heated seat control unit connector.

Turn ignition switch ON.

Check voltage between heated seat control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

>> GO TO 3.

CHECK POWER SUPPLY CIRCUIT

Turn ignition switch OFF.

Disconnect heated seat relay connector.

Check continuity between heated seat control unit harness connector and heated seat relay terminal con-
nector.

Check continuity between heated seat control unit harness connector and ground.

Is the inspection result normal?

YES

>> Check heated seat relay. Refer to

SE-20, "Component Function Check"

>> Repair or replace harness.

CHECK GROUND CIRCUIT

Turn ignition switch OFF.

Check continuity between heated seat control unit harness connector and ground.

Signal name

Fuse No.

Battery power supply

35 (15 A)

(+)

(

−

)

Voltage (V)

(Approx.)

Heated seat control unit

Connector

Terminal

B519

Ground

Battery voltage

Heated seat control unit

Heated seat relay

Continuity

Connector

Terminal

Connector

Terminal

B519

M70

Existed

Heated seat control unit

Ground

Continuity

Connector

Terminal

B519

Not existed

2014 GT-R

POWER SUPPLY AND GROUND CIRCUIT

SE-15

< DTC/CIRCUIT DIAGNOSIS >

Is the inspection result normal?

YES

>> Replace heated seat control unit.

>> Repair or replace harness.

HEATED SEAT SWITCH (DRIVER SIDE)

HEATED SEAT SWITCH (DRIVER SIDE) : Diagnosis Procedure

INFOID:0000000009162909

CHECK FUSE

Check that the following fuse is not fusing.

Is the inspection result normal?

YES

>> GO TO 2.

>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.

CHECK POWER SUPPLY

Turn ignition switch OFF.

Disconnect heated seat switch connector.

Turn ignition switch ON.

Check voltage between heated seat switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

>> GO TO 3.

CHECK POWER SUPPLY CIRCUIT

Turn ignition switch OFF.

Disconnect heated seat relay connector.

Check continuity between heated seat switch harness connector and heated seat relay terminal connec-
tor.

Check continuity between heated seat switch harness connector and ground.

Is the inspection result normal?

YES

>> Check heated seat relay. Refer to

SE-20, "Component Function Check"

>> Repair or replace harness.

CHECK INTERMITTENT INCIDENT

Heated seat control unit

Ground

Continuity

Connector

Terminal

B519

Existed

Signal name

Fuse No.

Battery power supply

35 (15 A)

(+)

(

−

)

Voltage (V)

(Approx.)

Heated seat switch

Connector

Terminal

Driver side

B513

Ground

Battery voltage

Heated seat switch

Heated seat relay

Continuity

Connector

Terminal

Connector

Terminal

Driver side

B513

M70

Existed

Heated seat switch

Ground

Continuity

Connector

Terminal

Driver side

B513

Not existed

2014 GT-R

SE-16

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

Check intermittent incident.
Refer to

GI-38, "Intermittent Incident"

>> INSPECTION END

2014 GT-R

Content .. 1 2 ..

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