Infiniti QX56 (Z62). Manual - part 414

DLK-122

< DTC/CIRCUIT DIAGNOSIS >

DOOR LOCK AND UNLOCK SWITCH

DOOR LOCK AND UNLOCK SWITCH

DRIVER SIDE

DRIVER SIDE : Component Function Check

INFOID:0000000006225927

1.

CHECK FUNCTION

1.

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

2.

Select “CDL LOCK SW”, “CDL UNLOCK SW” in “DATA MONITOR” mode.

3.

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

Is the inspection result normal?

YES

>> Door lock and unlock switch is OK.

NO

>> Refer to 

DLK-122, "DRIVER SIDE : Diagnosis Procedure"

.

DRIVER SIDE : Diagnosis Procedure

INFOID:0000000006225928

1.

CHECK POWER WINDOW SWITCH

1.

Turn ignition switch ON.

2.

Check power window operation.

Does power window operate?

YES

>> Replace power window main switch.

NO

>> Refer to 

PWC-61, "Diagnosis Procedure"

.

PASSENGER SIDE

PASSENGER SIDE : Component Function Check

INFOID:0000000006225929

1.

CHECK FUNCTION

1.

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

2.

Select “CDL LOCK SW”, “CDL UNLOCK SW” in “DATA MONITOR” mode.

3.

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

Is the inspection result normal?

YES

>> Door lock and unlock switch is OK.

NO

>> Refer to 

DLK-122, "PASSENGER SIDE : Diagnosis Procedure"

.

PASSENGER SIDE : Diagnosis Procedure

INFOID:0000000006225930

1.

CHECK POWER WINDOW SWITCH

1.

Turn ignition switch ON.

2.

Check power window operation.

Does power window operate?

YES

>> Replace front power window switch (passenger side).

NO

>> Refer to 

PWC-61, "Diagnosis Procedure"

.

Monitor item

Condition

Status

CDL LOCK SW 

Door lock and unlock switch

Lock

ON

Unlock

OFF

CDL UNLOCK SW 

Lock

OFF

Unlock

ON

Monitor item

Condition

Status

CDL LOCK SW 

Door lock and unlock switch

Lock

ON

Unlock

OFF

CDL UNLOCK SW 

Lock

OFF

Unlock

ON

DOOR LOCK ACTUATOR

DLK-123

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

DOOR LOCK ACTUATOR

DRIVER SIDE

DRIVER SIDE : Component Function Check

INFOID:0000000006225931

1.

CHECK FUNCTION

1.

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

2.

Select “DOOR LOCK” in “ACTIVE TEST” mode.

3.

Touch “ALL LOCK” or “ALL UNLK” to check that it works normally.

Is the inspection result normal?

YES

>> Door lock actuator is OK.

NO

>> Refer to 

DLK-123, "DRIVER SIDE : Diagnosis Procedure"

.

DRIVER SIDE : Diagnosis Procedure

INFOID:0000000006225932

1.

CHECK DOOR LOCK ACTUATOR 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

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

NO

>> GO TO 2.

2.

CHECK DOOR LOCK ACTUATOR CIRCUIT

1.

Disconnect BCM, all door lock actuators and fuel lid lock actuator 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

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK BCM OUTPUT SIGNAL

1.

Connect BCM connector.

2.

Check voltage between BCM harness connector and ground.

(+)

(–)

Condition

Voltage

(Approx.)

Front door lock assembly

(driver side)

Connector

Terminal

D9

1

Ground

Door lock and unlock switch

Lock

12 V

2

Unlock

BCM

Front door lock assembly (driver side)

Continuity 

Connector

Terminal

Connector

Terminal

M70

65

D9

1

Existed

66

2

BCM

Ground

Continuity 

Connector

Terminal

M70

65

Not existed

66

DLK-124

< DTC/CIRCUIT DIAGNOSIS >

DOOR LOCK ACTUATOR

Is the inspection result normal?

YES

>> Check for internal short of each door lock actuator and fuel lid lock actuator.

NO

>> Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

PASSENGER SIDE

PASSENGER SIDE : Component Function Check

INFOID:0000000006225933

1.

CHECK FUNCTION

1.

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

2.

Select “DOOR LOCK” in “ACTIVE TEST” mode.

3.

Touch “ALL LOCK” or “ALL UNLK” to check that it works normally.

Is the inspection result normal?

YES

>> Door lock actuator is OK.

NO

>> Refer to 

DLK-124, "PASSENGER SIDE : Diagnosis Procedure"

.

PASSENGER SIDE : Diagnosis Procedure

INFOID:0000000006225934

1.

CHECK DOOR LOCK ACTUATOR INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect front door lock assembly (passenger side) connector.

3.

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

Is the inspection result normal?

YES

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

NO

>> GO TO 2.

2.

CHECK DOOR LOCK ACTUATOR CIRCUIT

1.

Disconnect BCM, all door lock actuators and fuel lid lock actuator connector. 

2.

Check continuity between BCM harness connector and front door lock assembly (passenger side) har-
ness connector. 

3.

Check continuity between BCM harness connector and ground.

(+)

(–)

Condition

Voltage

(Approx.)

BCM

Connector

Terminal

M70

65

Ground

Door lock and unlock switch

Lock

12 V

66

Unlock

(+)

(–)

Condition

Voltage

(Approx.)

Front door lock assembly

(passenger side)

Connector

Terminal

D28

1

Ground

Door lock and unlock switch

Unlock

12 V

2

Lock

BCM

Front door lock assembly (passenger side)

Continuity 

Connector

Terminal

Connector

Terminal

M70

59

D28

1

Existed

65

2

DOOR LOCK ACTUATOR

DLK-125

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK BCM OUTPUT SIGNAL

1.

Connect BCM connector.

2.

Check voltage between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Check for internal short of each door lock actuator and fuel lid lock actuator.

NO

>> Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

REAR LH

REAR LH : Component Function Check

INFOID:0000000006225935

1.

CHECK FUNCTION

1.

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

2.

Select “DOOR LOCK” in “ACTIVE TEST” mode.

3.

Touch “ALL LOCK” or “ALL UNLK” to check that it works normally.

Is the inspection result normal?

YES

>> Door lock actuator is OK.

NO

>> Refer to 

DLK-125, "REAR LH : Diagnosis Procedure"

.

REAR LH : Diagnosis Procedure

INFOID:0000000006225936

1.

CHECK DOOR LOCK ACTUATOR INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect rear door lock assembly LH connector.

3.

Check voltage between rear door lock assembly LH harness connector and ground.

Is the inspection result normal?

YES

>> Replace rear door lock assembly LH.

NO

>> GO TO 2.

2.

CHECK DOOR LOCK ACTUATOR CIRCUIT

1.

Disconnect BCM, all door lock actuators and fuel lid lock actuator connector.

2.

Check continuity between BCM harness connector and rear door lock assembly LH harness connector. 

BCM

Ground

Continuity 

Connector

Terminal

M70

59

Not existed

65

(+)

(–)

Condition

Voltage

(Approx.)

BCM

Connector

Terminal

M70

59

Ground

Door lock and unlock switch

Unlock

12 V

65

Lock

(+)

(–)

Condition

Voltage

(Approx.)

Rear door lock assembly LH

Connector

Terminal

D65

1

Ground

Door lock and unlock switch

Lock

12 V

2

Unlock