Nissan GT-R (2007-2014 year). SEAT. Service Manual - part 2

HEATED SEAT SWITCH (DRIVER SIDE)

SE-17

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HEATED SEAT SWITCH (DRIVER SIDE)

Description

INFOID:0000000009162910

Adjusts heated seat temperature and deactivates heated seat.

Component Function Check

INFOID:0000000009162911

1.

CHECK FUNCTION

Check that heated seat warms to preset temperature when operating heated seat switch to the optimal posi-
tion.
Is the inspection result normal?

YES

>> Heated seat switch function is OK.

NO

>> Refer to 

SE-17, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009162912

1.

CHECK HEATED SEAT CONTROL UNIT INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect heated seat control unit connector.

3.

Turn ignition switch ON.

4.

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

Is the inspection result normal?

YES

>> Heated seat switch circuit is OK.

NO

>> GO TO 2.

2.

CHECK HEATED SEAT SWITCH CIRCUIT 1

1.

Turn ignition switch OFF.

2.

Disconnect heated seat switch connector, diode3 and diode4 connector.

3.

Check continuity between heated seat switch harness connector and diode3 harness connector. 

4.

Check continuity between heated seat switch harness connector and diode4 harness connector. 

5.

Check continuity between heated seat switch harness connector and ground.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Heated seat control unit

Connector

Terminal

B519

81

Ground

Heated seat switch

OFF

0

LO

12.24

HI

12.90

80

OFF

0

LO

Battery voltage

HI

Heated seat switch

Diaudo3

Continuity 

Connector

Terminal

Connector

Terminal

B513

22

B520

22

Existed

23

23

Heated seat switch

Diaudo4

Continuity 

Connector

Terminal

Connector

Terminal

B513

22

B521

83

Existed

23

82

2014 GT-R

SE-18

< DTC/CIRCUIT DIAGNOSIS >

HEATED SEAT SWITCH (DRIVER SIDE)

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK HEATED SEAT SWITCH CIRCUIT 2

Check resistance between heated seat switch harness connector and diode4 harness connector. 

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK HEATED SEAT SWITCH CIRCUIT 3

1.

Check continuity between heated seat control unit harness connector and diode3 harness connector. 

2.

Check continuity between heated seat control unit harness connector and diode4 harness connector. 

3.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK HEATED SEAT SWITCH

Check heated seat switch. 
Refer to 

SE-18, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace harness between heated seat switch and heated seat control unit.

NO

>> Replace heated seat switch.

Component Inspection

INFOID:0000000009162913

1.

CHECK FRONT HEATED SEAT SWITCH

1.

Turn ignition OFF.

Heated seat switch

Ground

Continuity 

Connector

Terminal

B513

22

Not existed

23

Heated seat switch

Diaudo4

Condition

Resistance

(

Ω

)

(Approx.) 

Connector

Terminal

Connector

Terminal

B513

22

B521

83

Heated seat 
switch

LO

2.400

23

82

HI

0.384

Heated seat control unit

Diaudo3

Continuity 

Connector

Terminal

Connector

Terminal

B519

80

B520

80

Existed

Heated seat control unit

Diaudo4

Continuity 

Connector

Terminal

Connector

Terminal

B519

81

B521

81

Existed

Heated seat control unit

Ground

Continuity 

Connector

Terminal

B519

80

Not existed

81

2014 GT-R

HEATED SEAT SWITCH (DRIVER SIDE)

SE-19

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2.

Disconnect heated seat switch connector.

3.

Check continuity between heated seat switch terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace heated seat switch.

Heated seat switch

Condition

Continuity 

Terminal

18

22

Heated seat switch

OFF

Not existed

LO

Existed

23

OFF

Not existed

HI

Existed

2014 GT-R

SE-20

< DTC/CIRCUIT DIAGNOSIS >

HEATED SEAT RELAY

HEATED SEAT RELAY

Description

INFOID:0000000009162914

Power is supplied to the heated seat using ignition power supply control.

Component Function Check

INFOID:0000000009162915

1.

CHECK FUNCTION

Check that heated seat warms to preset temperature when operating heated seat switch to the optimal posi-
tion.
Is the inspection result normal?

YES

>> Heated seat relay function is OK.

NO

>> Refer to 

SE-20, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000009162916

1.

CHECK HEATED SEAT RELAY POWER SUPPLY 1

1.

Turn ignition switch OFF.

2.

Disconnect heated seat relay.

3.

Turn ignition switch ON.

4.

Check voltage between heated seat relay terminal connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK HEATED SEAT RELAY POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect fuse block (J/B) connector.

3.

Turn ignition switch ON.

4.

Check continuity between heated seat relay terminal connector and fuse block (J/B) harness connector.

5.

Check continuity between heated seat relay terminal connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

DETECT MALFUNCTIONING PART

Check the following.
• 10 A fuse (#3)
• Harness for open or short between fuse block (J/B) harness connector and battery terminal.
Is the inspection result normal?

YES

>> GO TO 8.

(+)

(–)

Voltage (V)

(Approx.)

Heated seat relay

 Connector

Terminal 

M70

2

Ground

Battery voltage

Heated seat relay 

Fuse block (J/B)

Continuity 

Connector

Terminal

Connector

Terminal

M70

2

M1

2A

Existed

Heated seat relay

Ground

Continuity 

Connector

Terminal

M70

2

Not existed

2014 GT-R

HEATED SEAT RELAY

SE-21

< DTC/CIRCUIT DIAGNOSIS >

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NO

>> Repair or replace the malfunctioning parts.

4.

CHECK HEATED SEAT RELAY GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between heated seat relay terminal connector and ground. 

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK HEATED SEAT RELAY POWER SUPPLY 2

1.

Turn ignition switch OFF.

2.

Check continuity between heated seat relay terminal connector and ground. 

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 6.

6.

DETECT MALFUNCTIONING PART

Check the following.
• 15 A fuse (#35)
• Harness for open or short between heated seat relay terminal connector and battery terminal.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace the malfunctioning parts.

7.

CHECK HEATED SEAT RELAY

Check heated seat relay.
Refer to 

SE-21, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace heated seat relay.

8.

CHECK INTERMITTENT INCIDENT

Check intermittent incident.
Refer to 

GI-38, "Intermittent Incident"

>> INSPECTION END

Component Inspection

INFOID:0000000009162917

1.

CHECK HEATED SEAT RELAY

1.

Turn ignition switch OFF.

2.

Disconnect heated seat relay.

3.

Check continuity between heated seat relay terminals.

Heated seat relay

Ground

Continuity 

 Connector

Terminal

M70

1

Existed

(+)

(–)

Voltage (V)

(Approx.)

Heated seat relay

 Connector

Terminal

M70

5

Ground

Battery voltage

2014 GT-R

SE-22

< DTC/CIRCUIT DIAGNOSIS >

HEATED SEAT RELAY

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace heated seat relay.

heated seat relay

Condition

Continuity

Terminal

3

5

12 V direct current supply between termi-
nals 1 and 2.

Existed

No current supply

Not existed

SEF497Y

2014 GT-R

HEAT SENSOR

SE-23

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HEAT SENSOR

Description

INFOID:0000000009162918

Detects seat cushion heater temperature and outputs to heated seat control unit.

Component Function Check

INFOID:0000000009162919

1.

CHECK FUNCTION

Check that heated seat warms to preset temperature when operating heated seat switch to the optimal posi-
tion.
Is the inspection result normal?

YES

>> Heat sensor function is OK.

NO

>> Refer to 

SE-23, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000009162920

1.

CHECK HEAT SENSOR INPUT SIGNAL

1.

Turn ignition switch ON.

2.

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

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

Is the inspection result normal?

YES

>> heat sensor is OK.

NO

>> GO TO 2.

2.

CHECK HEAT SENSOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect heated seat control unit connector and seat cushion heater connector.

3.

Check continuity between heated seat control unit harness connector and seat cushion heater harness
connector. 

4.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK HEAT SENSOR POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check voltage between seat cushion heater harness connector and ground.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Heated seat control unit 

Connector

Terminal

B519

40

Ground

Heated seat switch

OFF

0

LO

10.87 – 11.02

HI

11.31 – 11.43

Heated seat control unit 

Seat cushion heater

Continuity 

Connector

Terminal

Connector

Terminal

B519

40

B518

40

Existed

Heated seat control unit 

Ground

Continuity 

Connector

Terminal

B519

40

Not existed

2014 GT-R

SE-24

< DTC/CIRCUIT DIAGNOSIS >

HEAT SENSOR

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK HEAT SENSOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect diode3 connector and heated seat control unit connector.

3.

Check continuity between diode3 harness connector and seat cushion heater harness connector. 

4.

Check continuity between seat cushion heater harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

5.

CHECK HEAT SENSOR

Check heat sensor. Refer to 

SE-24, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace seat cushion heater.

6.

CHECK INTERMITTENT INCIDENT

Check intermittent incident.
Refer to 

GI-38, "Intermittent Incident"

>> INSPECTION END

Component Inspection

INFOID:0000000009162921

1.

CHECK HEAT SENSOR

1.

Turn ignition switch OFF.

2.

Disconnect seat cushion heater connector.

3.

Check resistance between seat cushion heater terminals.

NOTE:
Resistance value changes according to temperature.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace seat cushion heater.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Seat cushion heater

Connector

Terminal

B518

80

Ground

Heated seat switch

LO / HI

Battery voltage

Seat cushion heater

diode3

Continuity 

Connector

Terminal

Connector

Terminal

B518

80

B520

80

Existed

Seat cushion heater

Ground

Continuity 

Connector

Terminal

B518

80

Not existed

Seat cushion heater

Condition

Resistance

(K

Ω

)

(Approx.)

Terminal

40

80

When heat sensor temperature is 25

°

C (77

°

F)

9.9 – 10.2

2014 GT-R

SEAT CUSHION HEATER (DRIVER SIDE)

SE-25

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SEAT CUSHION HEATER (DRIVER SIDE)

Description

INFOID:0000000009162922

Warms the seat cushion.

Component Function Check

INFOID:0000000009162923

1.

CHECK FUNCTION

Check that heated seat warms to preset temperature when operating heated seat switch to the optimal posi-
tion.
Is the inspection result normal?

YES

>> Seat cushion heater function is OK.

NO

>> Refer to 

SE-25, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009162924

1.

CHECK SEAT CUSHION HEATER INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect seat cushion heater connector.

3.

Turn ignition switch ON.

4.

Check voltage between seat cushion heater harness connector and ground.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK SEAT CUSHION HEATER CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect heated seat control unit connector.

3.

Check continuity between seat cushion heater harness connector and heated seat control unit harness
connector. 

4.

Check continuity between seat cushion heater harness connector and ground.

Is the inspection result normal?

YES

>> Replace heated seat control unit. 

NO

>> Repair or replace harness.

3.

CHECK SEAT CUSHION HEATER OUTPUT SIGNAL

1.

Turn ignition switch OFF.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Seat cushion heater

Connector

Terminal

B518

41

Ground

Heated seat

Operates

0 – Battery voltage

Other than above

0

Seat cushion heater

Heated seat control unit

Continuity 

Connector

Terminal

Connector

Terminal

B518

41

B519

41

Existed

Seat cushion heater

Ground

Continuity 

Connector

Terminal

B518

41

Not existed

2014 GT-R

SE-26

< DTC/CIRCUIT DIAGNOSIS >

SEAT CUSHION HEATER (DRIVER SIDE)

2.

Connect seat cushion heater connector.

3.

Disconnect seatback heater connector.

4.

Turn ignition switch ON.

5.

Check voltage between seat cushion heater harness connector and ground.

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace seat cushion heater.

4.

CHECK SEAT CUSHION HEATER GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect seat cushion heater connector.

3.

Check continuity between seat cushion heater harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK SEAT CUSHION HEATER

Check seat cushion heater.
Refer to 

SE-26, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace seat cushion heater.

6.

CHECK INTERMITTENT INCIDENT

Check intermittent incident.
Refer to 

GI-38, "Intermittent Incident"

>> INSPECTION END

Component Inspection

INFOID:0000000009162925

1.

CHECK SEAT CUSHION HEATER (MAIN HEATER CIRCUIT)

1.

Turn ignition switch OFF.

2.

Disconnect seat cushion heater connector.

3.

Check resistance between seat cushion heater terminals.

NOTE:
Resistance value changes according to temperature.

Is the inspection result normal?

(+)

(–)

Condition

Voltage (V)

(Approx.)

Seat cushion heater

Connector

Terminal

B518

12

Ground

Heated seat

Operates

0 – Battery voltage

Other than above

0

Seat cushion heater

Ground

Continuity 

 Connector

Terminal

B518

21

Existed

Seat cushion heater

Condition

Resistance

(

Ω

)

(Approx.)

Terminal

21

41

When heat sensor temperature is 20

°

C (68

°

F)

2.99 – 3.59

2014 GT-R

SEAT CUSHION HEATER (DRIVER SIDE)

SE-27

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YES

>> GO TO 2.

NO

>> Replace seat cushion heater.

2.

CHECK SEAT CUSHION HEATER (SEATBACK HEATER CIRCUIT)

Check resistance between seat cushion heater terminals.

NOTE:
Resistance value changes according to temperature.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace seat cushion heater.

Seat cushion heater

Condition

Resistance

(

Ω

)

(Approx.)

Terminal

21

12

When heat sensor temperature is 20

°

C (68

°

F)

3.13 – 3.75

2014 GT-R

SE-28

< DTC/CIRCUIT DIAGNOSIS >

SEATBACK HEATER (DRIVER SIDE)

SEATBACK HEATER (DRIVER SIDE)

Description

INFOID:0000000009162926

Warms the seatback.

Component Function Check

INFOID:0000000009162927

1.

CHECK FUNCTION

Check that heated seat warms to preset temperature when operating heated seat switch to the optimal posi-
tion.
Is the inspection result normal?

YES

>> Seatback heater function is OK.

NO

>> Refer to 

SE-28, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009162928

1.

CHECK SEAT CUSHION HEATER INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect seatback heater connector.

3.

Turn ignition switch ON.

4.

Check voltage between seatback heater harness connector and ground.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK SEATBACK HEATER CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect seat cushion heater connector.

3.

Check continuity between seatback heater harness connector and seat cushion heater harness connec-
tor. 

4.

Check continuity between seatback heater harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

3.

CHECK SEATBACK HEATER OUTPUT SIGNAL

1.

Turn ignition switch OFF.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Seatback heater

Connector

Terminal

B515

12

Ground

Heated seat

Operates

0 – Battery voltage

Other than above

0

Seatback heater

Seat cushion heater

Continuity 

Connector

Terminal

Connector

Terminal

B515

12

B508

12

Existed

Seatback heater

Ground

Continuity 

Connector

Terminal

B515

12

Not existed

2014 GT-R

SEATBACK HEATER (DRIVER SIDE)

SE-29

< DTC/CIRCUIT DIAGNOSIS >

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2.

Connect seat cushion heater connector.

3.

Check continuity between seatback heater harness connector and seat cushion heater harness connec-
tor. 

4.

Check continuity between seatback heater harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace seat cushion heater.

4.

CHECK SEAT CUSHION HEATER

Check seat cushion heater.
Refer to 

SE-26, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace seat cushion heater.

5.

CHECK SEATBACK HEATER

Check seatback heater.
Refer to 

SE-26, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace seatback heater.

6.

CHECK INTERMITTENT INCIDENT

Check intermittent incident.
Refer to 

GI-38, "Intermittent Incident"

>> INSPECTION END

Component Inspection (Seat Cushion Heater)

INFOID:0000000009162929

1.

CHECK SEAT CUSHION HEATER

1.

Turn ignition switch OFF.

2.

Disconnect seat cushion heater connector.

3.

Check continuity between seatback heater terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace seat cushion heater.

Component Inspection (Seatback Heater)

INFOID:0000000009162930

1.

CHECK SEATBACK HEATER

1.

Turn ignition switch OFF.

2.

Disconnect seatback heater connector.

Seatback heater

Seat cushion heater

Continuity 

Connector

Terminal

Connector

Terminal

B515

51

B508

51

Existed

Seatback heater

Ground

Continuity 

Connector

Terminal

B515

51

Not existed

Seat cushion heater

Continuity 

Terminal

51

21

Existed

2014 GT-R

SE-30

< DTC/CIRCUIT DIAGNOSIS >

SEATBACK HEATER (DRIVER SIDE)

3.

Check resistance between seatback heater terminals.

NOTE:
Resistance value changes according to temperature.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace seatback heater.

Seatback heater

Condition

Resistance

(

Ω

)

Terminal

12

51

When heat sensor temperature is 20

°

C (68

°

F)

3.51 – 4.21

2014 GT-R

HEATED SEAT SWITCH INDICATOR (DRIVER SIDE)

SE-31

< DTC/CIRCUIT DIAGNOSIS >

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HEATED SEAT SWITCH INDICATOR (DRIVER SIDE)

Description

INFOID:0000000009162931

Illuminates the indicator that indicates the operating status of heated seat.

Component Function Check

INFOID:0000000009162932

1.

CHECK FUNCTION

Check that the related indicator lamp illuminates when heated seat switch is set to ON. 

Is the inspection result normal?

YES

>> Heated seat switch indicator function is OK.

NO

>> Refer to 

SE-31, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009162933

1.

CHECK HEATED SEAT SWITCH INDICATOR GROUND CIRCUIT

1.

Turn ignition switch OFF

2.

Disconnect heated seat switch connector.

3.

Check continuity between heated seat switch harness connector and ground. 

Is the inspection result normal?

YES

>> Replace heated seat switch.

NO

>> Repair or replace harness.

Heated seat switch

Ground

Continuity 

 Connector

Terminal

B513

21

Existed

2014 GT-R

SE-32

< SYMPTOM DIAGNOSIS >

DRIVER HEATED SEAT DOES NOT OPERATE

SYMPTOM DIAGNOSIS

DRIVER HEATED SEAT DOES NOT OPERATE

Diagnosis Procedure

INFOID:0000000009162934

1.

CHECK HEATED SEAT CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT

Check heated seat switch power supply and ground circuit.
Refer to 

SE-14, "HEATED SEAT CONTROL UNIT : Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts.

2.

CHECK HEATED SEAT RELAY

Check heated seat relay.
Refer to 

SE-20, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace the malfunctioning parts.

3.

CHECK HEATED SEAT SWITCH POWER SUPPLY 

Check heated seat switch power supply.
Refer to 

SE-17, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace the malfunctioning parts.

4.

CHECK HEATED SEAT SWITCH

Check heated seat switch.
Refer to 

SE-17, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace the malfunctioning parts.

5.

CHECK SEAT CUSHION HEATER

Check seat cushion heater.
Refer to 

SE-25, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace the malfunctioning parts.

6.

CONFIRM THE OPERATION

Confirm the operation again.
Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

NO

>> GO TO 1.

2014 GT-R