Infiniti G37 Coupe. Manual - part 21

ADP-78

< COMPONENT DIAGNOSIS >

SLIDING LIMIT SWITCH

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK DRIVER SEAT CONTROL UNIT OUTPUT

1.

Connect driver seat control unit connector.

2.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace driver seat control unit. Refer to 

ADP-236, "Removal and Installation"

.

5.

CHECK SLIDING LIMIT SWITCH

Refer to 

ADP-78, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

NO

>> Replace sliding limit switch. (Built in seat cushion frame.)

Component Inspection

INFOID:0000000001838046

1.

CHECK SLIDING LIMIT SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect sliding limit switch connector.

3.

Check continuity between sliding limit switch terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace sliding limit switch. (Built in seat cushion frame.)

Sliding limit switch

Ground

Continuity

Connector

Terminal

B514

32

Ground

Existed

Driver seat control unit

Ground

Voltage (V)

(Approx.)

Connector

Terminal

B503

4

Ground

5

Sliding limit switch

Condition

Continuity

Terminal

4

32

Seat sliding

Front edge

Not existed

Other than above

Existed

POWER WALK-IN SWITCH

ADP-79

< COMPONENT DIAGNOSIS >

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POWER WALK-IN SWITCH

Description

INFOID:0000000001838050

Power walk-in switch is installed on seat back. The operation signal is inputted to driver seat control unit when
power walk-in switch is operated.

Component Function Check

INFOID:0000000001838051

1.

CHECK FUNCTION

1.

Select “WALK-IN SW” in “Data Monitor” mode with CONSULT-III. 

2.

Check the power walk-in switch signal under the following condition.

Is the indication normal?

YES

>> INSPECTION END

NO

>> Refer to 

ADP-79, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001838052

1.

CHECK POWER WALK-IN SWITCH SIGNAL

1.

Turn ignition switch OFF.

2.

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

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

NO

>> GO TO 2.

2.

CHECK POWER WALK-IN SWITCH CIRCUIT

1.

Disconnect driver seat control unit connector and power walk-in switch connector.

2.

Check continuity between driver seat control unit harness connector and power walk-in switch harness
connector.

3.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK POWER WALK-IN SWITCH GROUND CIRCUIT

Check continuity between power walk-in switch harness connector and ground.

Test item

Condition

Status

WALK-IN SW

Power walk-in switch

Pressed

ON

Released

OFF

Driver seat control unit

Ground

Condition

Voltage (V)

(Approx.)

Connector

Terminal

B503

30

Ground

Power walk-

in switch

Pressed

0

Released

Battery voltage

Driver seat control unit

Power walk-in switch

Continuity

Connector

Terminal

Connector

Terminal

B503

30

B513

30

Existed

Driver seat control unit

Ground

Continuity 

Connector

Terminal

B503

30

Ground

Not existed

ADP-80

< COMPONENT DIAGNOSIS >

POWER WALK-IN SWITCH

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK DRIVER SEAT CONTROL UNIT OUTPUT

1.

Connect driver seat control unit connector.

2.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace driver seat control unit. Refer to 

ADP-236, "Removal and Installation"

.

5.

CHECK POWER WALK-IN SWITCH

Refer to 

ADP-80, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

NO

>> Replace power walk-in switch. (Built in walk-in lever.)

Component Inspection

INFOID:0000000001838053

1.

CHECK POWER WALK-IN SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect power walk-in switch connector.

3.

Check continuity between power walk-in switch terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace power walk-in switch.

Power walk-in switch

Ground

Continuity

Connector

Terminal

B513

32

Ground

Existed

Driver seat control unit

Ground

Voltage (V)

(Approx.)

Connector

Terminal

B503

30

Ground

Battery voltage

Power walk-in switch

Condition

Continuity

Terminal

30

32

Power walk-in 
switch

Pressed

Not existed

Released

Existed

TILT SWITCH

ADP-81

< COMPONENT DIAGNOSIS >

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TILT SWITCH

Description

INFOID:0000000001693698

Tilt switch is equipped on the steering column. The operation signal is inputted to the automatic drive posi-
tioner  control unit when the tilt switch is operated.

Component Function Check

INFOID:0000000001693699

1.

CHECK FUNCTION

1.

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

2.

Check tilt switch signal under the following conditions.

Is the indication normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis procedure. Refer to 

ADP-81, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001693700

1.

CHECK TILT SWITCH SIGNAL

1.

Turn ignition switch ON.

2.

Check voltage between automatic drive positioner control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 2.

2.

CHECK TILT SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect automatic drive positioner control unit connector and tilt & telescopic switch connector.

3.

Check continuity between automatic drive positioner control unit harness connector and tilt & telescopic
switch harness connector.

4.

Check continuity between automatic drive positioner control unit harness connector and ground.

Monitor item

Condition

Status

TILT SW-UP

Tilt switch (up)

Operate

ON

Release

OFF

TILT SW-DN

Tilt switch (down)

Operate

ON

Release

OFF

Automatic drive positioner 

control unit connector

Terminals 

Condition

Voltage (V) 

(Approx.)

(+)

(–)

M51

1

Ground

Tilt switch

Operate (up)

0

Release

Battery voltage

17

Operate (down)

0

Release

Battery voltage

Automatic drive positioner

control unit connector

Terminal

TIlt & telescopic switch

connector

Terminal

Continuity

M51

1

M31

4

Existed

17

5