Infiniti QX56 (Z62). Manual — part 416

DLK-130

< DTC/CIRCUIT DIAGNOSIS >

UNLOCK SENSOR

UNLOCK SENSOR

Component Function Check

INFOID:0000000006225941

1.

CHECK FUNCTION

1.

Select “INTELLIGENT KEY” of “BCM” using CONSULT-III.

2.

Select “UNLK SEN-DR” in “DATA MONITOR” mode.

3.

Check that the function operates normally according to the following conditions.

Is the inspection result normal?

YES

>> Unlock sensor is OK.

NO

>> Refer to

DLK-130, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006225942

1.

CHECK UNLOCK SENSOR INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect front door lock assembly (driver side) connector.

3.

Check signal between front door lock assembly (driver side) harness connector and ground with oscillo-
scope.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK UNLOCK SENSOR CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and front door lock assembly (driver side) harness
connector.

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to

BCS-81, "Removal and Installation"

.

Monitor item

Condition

Status

UNLK SEN -DR

Driver side door

Lock

OFF

Unlock

ON

(+)

(–)

Signal

(Reference value)

Front door lock assembly (driver side)

Connector

Terminal

D9

3

Ground

PKIB4960J

BCM

Front door lock assembly (driver side)

Continuity

Connector

Terminal

Connector

Terminal

M68

31

D9

3

Existed

BCM

Ground

Continuity

Connector

Terminal

M68

31

Not existed

UNLOCK SENSOR

DLK-131

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

NO

>> Repair or replace harness.

3.

CHECK UNLOCK SENSOR GROUND CIRCUIT

Check continuity between front door lock assembly (driver side) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK UNLOCK SENSOR

Refer to

DLK-131, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace front door lock assembly (driver side).

5.

CHECK INTERMITTENT INCIDENT

Refer to

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000006225943

1.

CHECK UNLOCK SENSOR

1.

Turn ignition switch OFF.

2.

Disconnect front door lock assembly (driver side) connector.

3.

Check continuity between front door lock assembly (driver side) terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace front door lock assembly (driver side).

Front door lock assembly (driver side)

Ground

Continuity

Connector

Terminal

D9

4

Existed

Front door lock assembly (driver side)

Condition

Continuity

Terminal

3

4

Driver side door

Unlock

Existed

Lock

Not existed

DLK-132

< DTC/CIRCUIT DIAGNOSIS >

DOOR KEY CYLINDER SWITCH

DOOR KEY CYLINDER SWITCH

Component Function Check

INFOID:0000000006225944

1.

CHECK FUNCTION

1.

Select “DOOR LOCK” of “BCM” using CONSULT-III.

2.

Select “KEY CYL LK-SW”, “KEY CYL UN-SW” in “DATA MONITOR” mode.

3.

Check that the function operates normally according to the following conditions.

Is the inspection result normal?

YES

>> Door key cylinder switch is OK.

NO

>> Refer to

DLK-132, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006225945

1.

CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect front door lock assembly (driver side) connector.

3.

Check voltage between front door lock assembly (driver side) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK DOOR KEY CYLINDER SWITCH SIGNAL CIRCUIT

1.

Disconnect power window main switch connector.

2.

Check continuity between power window main switch harness connector and front door lock assembly
(driver side) harness connector.

3.

Check continuity between power window main switch harness connector and ground.

Is the inspection result normal?

YES

>> Replace power window main switch. Refer to

PWC-74, "Removal and Installation"

.

Monitor item

Condition

Status

KEY CYL LK-SW

Driver side door key cylinder

Lock

ON

Neutral / Unlock

OFF

KEY CYL UN-SW

Unlock

ON

Neutral / Lock

OFF

(+)

(–)

Voltage

(Approx.)

Front door lock assembly (driver side)

Connector

Terminal

D9

5

Ground

5 V

6

Power window main switch

Front door lock assembly (driver side)

Continuity

Connector

Terminal

Connector

Terminal

D5

4

D9

6

Existed

6

5

Power window main switch

Ground

Continuity

Connector

Terminal

D5

4

Not existed

6

DOOR KEY CYLINDER SWITCH

DLK-133

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

NO

>> Repair or replace harness.

3.

CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT

Check continuity between front door lock assembly (driver side) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK DOOR KEY CYLINDER SWITCH

Refer to

DLK-133, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace front door lock assembly (driver side).

5.

CHECK INTERMITTENT INCIDENT

Refer to

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000006225946

1.

CHECK DOOR KEY CYLINDER SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect front door lock assembly (driver side) connector.

3.

Check continuity between front door lock assembly (driver side) terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace front door lock assembly (driver side).

Front door lock assembly (driver side)

Ground

Continuity

Connector

Terminal

D9

4

Existed

Front door lock assembly (driver side)

Condition

Continuity

Terminal

5

4

Driver side door key cylinder

Unlock

Existed

Neutral / Lock

Not existed

6

Lock

Existed

Neutral / Unlock

Not existed