Infiniti QX56 (Z62). Manual - part 20

LIFTING SWITCH (FRONT)

ADP-73

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

LIFTING SWITCH (FRONT)

Component Function Check

INFOID:0000000006248363

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-73, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006248364

1.

CHECK LIFTING SWITCH (FRONT) INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect power seat switch connector.

3.

Turn ignition switch ON.

4.

Check voltage between power seat switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK LIFTING SWITCH (FRONT) CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit 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.

Is the inspection result normal?

YES

>> Replace driver seat control unit.

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

(+)

(-)

Voltage (V)

(Approx.)

Power seat switch

Connector

Terminals

B459

10

Ground

12

26

Driver seat control unit

Power seat switch

Continuity

Connector

Terminal

Connector

Terminal

B452

10

B459

10

Existed

26

26

Driver seat control unit

Ground

Continuity 

Connector

Terminal

B452

10

Not existed

26

ADP-74

< DTC/CIRCUIT DIAGNOSIS >

LIFTING SWITCH (FRONT)

NO

>> Repair or replace harness or connector.

3.

CHECK LIFTING SWITCH (FRONT)

Refer to 

ADP-74, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace power seat switch.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000006248365

1.

CHECK LIFTING SWITCH (FRONT)

1.

Turn ignition switch OFF.

2.

Disconnect power seat switch (lifting switch front) connector.

3.

Check continuity between power seat switch (lifting switch front) terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace power seat switch.

Power seat switch (lifting switch front)

Condition

Continuity

Terminal

10

43

Lifting switch front (down)

Operate

Existed

Release

Not existed

26

Lifting switch front (up)

Operate

Existed

Release

Not existed

LIFTING SWITCH (REAR)

ADP-75

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

LIFTING SWITCH (REAR)

Component Function Check

INFOID:0000000006248366

1.

CHECK FUNCTION

1.

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

2.

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

Is the indication normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis procedure. Refer to 

ADP-75, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006248367

1.

CHECK LIFTING SWITCH (REAR) INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect power seat switch connector.

3.

Turn ignition switch ON.

4.

Check voltage between power seat switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK LIFTING SWITCH (REAR) CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit 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.

Is the inspection result normal?

YES

>> Replace driver seat control unit.

Monitor item

Condition

Status

LIFT RR SW-UP

Lifting switch rear (up)

Operate

ON

Release

OFF

LIFT RR SW-DN

Lifting switch rear (down)

Operate

ON

Release

OFF

(+)

(-)

Voltage (V)

(Approx.)

Power seat switch

Connector

Terminals

B459

11

Ground

12

27

Driver seat control unit

Power seat switch

Continuity

Connector

Terminal

Connector

Terminal

B452

11

B459

11

Existed

27

27

Driver seat control unit

Ground

Continuity 

Connector

Terminal

B452

11

Not existed

27

ADP-76

< DTC/CIRCUIT DIAGNOSIS >

LIFTING SWITCH (REAR)

NO

>> Repair or replace harness or connector.

3.

CHECK LIFTING SWITCH (REAR)

Refer to 

ADP-76, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace power seat switch.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000006248368

1.

CHECK LIFTING SWITCH (REAR)

1.

Turn ignition switch OFF.

2.

Disconnect power seat switch (lifting switch rear) connector.

3.

Check continuity between power seat switch (lifting switch rear) terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace power seat switch.

Power seat switch (lifting switch rear)

Condition

Continuity

Terminal

11

43

Lifting switch rear (down)

Operate

Existed

Release

Not existed

27

Lifting switch rear (up)

Operate

Existed

Release

Not existed