Infiniti QX56 (JA60). Manual - part 22

FRONT DOOR SWITCH (DRIVER SIDE)

ADP-79

< COMPONENT DIAGNOSIS >

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FRONT DOOR SWITCH (DRIVER SIDE)

Description

INFOID:0000000005147522

Detects front door LH open/close condition.

Component Function Check

INFOID:0000000005147523

1.

 CHECK FUNCTION

1. Select “DOOR SW-DR” in “Data monitor” mode with CONSULT-III.

2. Check the front door switch LH signal under the following conditions. 

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Perform diagnosis procedure. Refer to 

ADP-79, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005147524

Regarding Wiring Diagram information, refer to 

ADP-119, "Wiring Diagram"

.

1.

 CHECK FRONT DOOR SWITCH LH CIRCUIT 

1. Disconnect BCM and front door switch LH.

2. Check continuity between BCM connector and front door switch

LH connector.

3. Check continuity between BCM connector and ground.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> Repair or replace harness.

2.

 CHECK FRONT DOOR SWITCH LH 

Refer to 

ADP-80, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Replace front door switch LH.

3.

 CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-59, "Removal and Installation"

.

NO

>> Repair or replace the malfunctioning part.

Monitor item

Condition

Status

DOOR SW-DR

Front door switch LH

Open

ON

Close

OFF

BCM connector

Terminal

Front door switch 

LH connector

Terminal

Continuity 

M19

47

B8

2

Yes

BCM connector

Terminal

Ground

Continuity 

M19

47

No

LIIA1027E

ADP-80

< COMPONENT DIAGNOSIS >

FRONT DOOR SWITCH (DRIVER SIDE)

Component Inspection

INFOID:0000000005147525

1.

 CHECK FRONT DOOR SWITCH LH

1. Turn ignition switch OFF.

2. Disconnect front door switch LH.

3. Check continuity between front door switch LH terminals.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace front door switch LH.

Terminal

Condition

Continuity

Front door switch LH

2

Ground part of 

door switch

Front door switch 
LH

Pushed

No

Released

Yes

LIIA2377E

SLIDING SENSOR

ADP-81

< COMPONENT DIAGNOSIS >

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SLIDING SENSOR

Description

INFOID:0000000005147526

• The sliding sensor is installed to the power seat frame assembly.

• The pulse signal is input to the driver seat control unit when sliding is performed.

• The driver seat control unit counts the pulse and calculates the sliding amount of the seat.

Component Function Check

INFOID:0000000005147527

1.

 CHECK FUNCTION

1. Select “SLIDE PULSE” in “Data monitor” mode with CONSULT-III. 

2. Check sliding sensor 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:0000000005147528

Regarding Wiring Diagram information, refer to 

ADP-119, "Wiring Diagram"

.

1.

 CHECK SLIDING SENSOR SIGNAL

1. Turn ignition switch OFF.

2. Read voltage signal between driver seat control unit harness

connector and ground with osiloscope.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> GO TO 2

2.

 CHECK SLIDING SENSOR CIRCUITS

Monitor item

Condition

Valve

SLIDE PULSE

Seat sliding

Operate (forward)

Change (increase)

Operate (backward)

Change (decrease)

Release

No change

Terminals

Condition

Voltage signal

(+)

(–)

Driver’s 

seat 

control 

unit

Termi-

nal

B202

24

Ground

Seat 
sliding

Operate

Other 
than 
above

0 or 5

PIIA4556E

PIIA3277E

ADP-82

< COMPONENT DIAGNOSIS >

SLIDING SENSOR

1. Disconnect driver seat control unit and sliding motor LH.

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

nector and sliding motor 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 SEAT OPERATION

1. Connect driver seat control unit and sliding motor LH.

2. Check seat operation (except sliding operation) with memory function.
Is the inspection result normal?

YES

>> Replace sliding motor LH. (Built in power seat frame assembly). Refer to 

SE-69, "Disassembly

and Assembly"

.

NO

>> Replace driver seat control unit. Refer to 

ADP-174, "Removal and Installation"

.

4.

 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.

Driver seat control 

unit connector

Terminal

Sliding motor 

LH connector

Terminal

Continuity

B202 (A)

16

B204 (B)

3

Yes

24

4

31

2

Driver seat control unit 

connector

Terminal

Ground

Continuity 

B202 (A)

16

No

24

31

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