Infiniti QX56 (JA60). Manual - part 16

RECLINING SWITCH

ADP-55

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

1. Turn ignition switch OFF.

2. Disconnect power seat switch LH.

3. Check continuity between power seat switch LH terminals.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace power seat switch LH. Refer to 

SE-69, "Disassembly and Assembly"

.

Terminals

Condition

Continuity

Power seat switch LH

7

3

Reclining switch 
(backward)

Operate

Yes

Release

No

4

Reclining switch 
(forward)

Operate

Yes

Release

No

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ADP-56

< COMPONENT DIAGNOSIS >

LIFTING SWITCH (FRONT)

LIFTING SWITCH (FRONT)

Description

INFOID:0000000005147490

Lifting switch (front) is equipped to the power seat switch LH on the seat cushion trim cover. The operation sig-

nal is input to the driver seat control unit when the lifting switch (front) is operated.

Component Function Check

INFOID:0000000005147491

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-56, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005147492

Regarding Wiring Diagram information, refer to 

ADP-119, "Wiring Diagram"

.

1.

 CHECK LIFTING SWITCH SIGNAL

1. Turn ignition switch OFF.

2. Check voltage between driver seat control unit harness connec-

tor and ground.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> GO TO 2

2.

 CHECK LIFTING SWITCH (FRONT) CIRCUIT

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.)

(+)

(–)

B202

13

Ground

Lifting 

switch 

(front)

Operate 

(down)

0V

Release

Battery 
voltage

28

Operate (up)

0V

Release

Battery 
voltage

PIIA4583E

LIFTING SWITCH (FRONT)

ADP-57

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

1. Disconnect driver seat control unit and power seat switch LH.

2. Check continuity between driver seat control unit harness con-

nector and power seat switch LH harness connector.

3. Check continuity between driver seat control unit harness con-

nector and ground.

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.

2. Turn ignition switch OFF.

3. Check voltage between driver seat control unit harness connec-

tor and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Replace driver seat control unit. Refer to 

ADP-174, "Removal and Installation"

.

4.

 CHECK LIFTING SWITCH (FRONT)

Refer to 

ADP-57, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Replace power seat switch LH. Refer to 

SE-69, "Disassembly and Assembly"

.

5.

 CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace driver seat control unit. Refer to 

ADP-174, "Removal and Installation"

.

NO

>> Repair or replace the malfunctioning part.

Component Inspection

INFOID:0000000005147493

1.

 CHECK LIFTING SWITCH (FRONT)

Driver seat control 

unit connector

Terminal

Power seat switch 

LH connector

Terminal

Continuity

B202 (A)

13

B208 (B)

9

Yes

28

10

Driver seat control unit

connector

Terminal

Ground

Continuity 

B202 (A)

13

No

28

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Driver seat control unit

connector

Terminals 

Voltage (V) 

(Approx.)

(+)

(–)

B202

13

Ground

Battery voltage

28

PIIA4583E

ADP-58

< COMPONENT DIAGNOSIS >

LIFTING SWITCH (FRONT)

1. Turn ignition switch OFF.

2. Disconnect power seat switch LH.

3. Check continuity between power seat switch LH terminals.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace power seat switch LH. Refer to 

SE-69, "Disassembly and Assembly"

.

Terminal

Condition

Continuity

Power seat switch LH

7

9

Lifting switch front (down)

Operate

Yes

Release

No

10

Lifting switch front (up)

Operate

Yes

Release

No

ALJIA0313ZZ