Infiniti G37 Coupe. Manual - part 18

ADP-66

< COMPONENT DIAGNOSIS >

SLIDING SWITCH

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK DRIVER SEAT CONTROL UNIT OUTPUT

1.

Connect the driver seat control unit connector.

2.

Turn ignition switch ON.

3.

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace driver seat control unit.

4.

CHECK SLIDING SWITCH

Refer to 

ADP-66, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace power seat switch.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace driver seat control unit.

NO

>> Repair or replace the malfunctioning part.

Component Inspection

INFOID:0000000001693685

1.

CHECK SLIDING SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect power seat switch (sliding switch) connector.

3.

Check continuity between power seat switch (sliding switch) terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace power seat switch.

Driver seat control unit

connector

Terminal

Ground

Continuity 

B503

11

Not existed

26

Driver seat control unit

connector

Terminals

Voltage (V)

(Approx.)

(+)

(–)

B503

11

Ground

Battery voltage

26

Terminal

Condition

Continuity

Power seat switch (Sliding switch)

32

11

Sliding switch (backward)

Operate

Existed

Release

Not existed

26

Sliding switch (forward)

Operate

Existed

Release

Not existed

RECLINING SWITCH

ADP-67

< COMPONENT DIAGNOSIS >

C

D

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A

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ADP

N

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RECLINING SWITCH

Description

INFOID:0000000001693686

Reclining switch is equipped to the power seat switch on the seat cushion side surface. The operation signal is
inputted to the driver seat control unit when the reclining switch is operated.

Component Function Check

INFOID:0000000001693687

1.

CHECK FUNCTION

1.

Select “RECLN SW-FR”, “RECLN SW-RR” in “Data Monitor” mode with CONSULT-III. 

2.

Check reclining switch signal under the following conditions.

Is the indication normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis procedure. Refer to 

ADP-67, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001693688

1.

CHECK RECLINING SWITCH SIGNAL

1.

Turn ignition switch ON.

2.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 2.

2.

CHECK RECLINING SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit connector and power seat switch connector.

3.

Check continuity between driver seat control unit harness connector and power seat switch harness con-
nector.

4.

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

Monitor item

Condition

Status

RECLINE SW-FR

Reclining switch (forward)

Operate

ON

Release

OFF

RECLINE SW-RR

Reclining switch (backward)

Operate

ON

Release

OFF

Driver seat control unit

connector

Terminals 

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B503

12

Ground

Reclining switch

Operate (backward)

0

Release

Battery voltage

27

Operate (forward)

0

Release

Battery voltage

Driver seat control unit

connector

Terminal

Power seat switch

connector

Terminal

Continuity

B503

12

B510

12

Existed

27

27

ADP-68

< COMPONENT DIAGNOSIS >

RECLINING SWITCH

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK DRIVER SEAT CONTROL UNIT OUTPUT

1.

Connect the driver seat control unit connector.

2.

Turn ignition switch ON.

3.

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace driver seat control unit.

4.

CHECK RECLINING SWITCH

Refer to 

ADP-68, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace power seat switch.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace driver seat control unit.

NO

>> Repair or replace the malfunctioning part.

Component Inspection

INFOID:0000000001693689

1.

CHECK RECLINING SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect power seat switch (reclining switch) connector.

3.

Check continuity between power seat switch (reclining switch) terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace power seat switch.

Driver seat control unit

connector

Terminal

Ground

Continuity 

B503

12

Not existed

27

Driver seat control unit

connector

Terminals 

Voltage (V) 

(Approx.)

(+)

(–)

B503

12

Ground

Battery voltage

27

Terminal

Condition

Continuity

Power seat switch (Reclining switch)

32

12

Reclining switch (backward)

Operate

Existed

Release

Not existed

27

Reclining switch (forward)

Operate

Existed

Release

Not existed

LIFTING SWITCH (FRONT)

ADP-69

< COMPONENT DIAGNOSIS >

C

D

E

F

G

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K

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M

A

B

ADP

N

O

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LIFTING SWITCH (FRONT)

Description

INFOID:0000000001693690

Lifting switch (front) is equipped to the power seat switch on the seat cushion side surface. The operation sig-
nal is inputted to the driver seat control unit when the lifting switch (front) is operated.

Component Function Check

INFOID:0000000001693691

1.

CHECK FUNCTION

1.

Select “LIFT FR SW-UP”, “LIFT FR SW-DN” in “Data Monitor” mode with CONSULT-III.

2.

Check lifting switch (front) signal under the following conditions.

Is the indication normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis procedure. Refer to 

ADP-69, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001693692

1.

CHECK LIFTING SWITCH (FRONT) SIGNAL

1.

Turn ignition switch ON.

2.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 2.

2.

CHECK LIFTING SWITCH (FRONT) CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit connector and power seat switch connector.

3.

Check continuity between driver seat control unit harness connector and power seat switch harness con-
nector.

4.

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

Monitor item

Condition

Status

LIFT FR SW-UP

Lifting switch front (up)

Operate

ON

Release

OFF

LIFT FR SW-DN

Lifting switch front (down)

Operate

ON

Release

OFF

Driver seat control unit

connector

Terminals 

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B503

13

Ground

Lifting switch
(front)

Operate (down)

0

Release

Battery voltage

28

Operate (up)

0

Release

Battery voltage

Driver seat control unit

connector

Terminal

Power seat switch

connector

Terminal

Continuity

B503

13

B510

13

Existed

28

28