Nissan Quest E52. Manual - part 386

DLK-258

< DTC/CIRCUIT DIAGNOSIS >

SELECT UNLOCK RELAY

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK SELECTIVE UNLOCK RELAY 

Check selective unlock relay.
Refer to 

DLK-258, "Component Inspection"

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace selective unlock relay.

6.

CHECK INTERMITTENT INCIDENT 

Refer to 

GI-42, "Intermittent Incident"

>> INSPECTION END

Component Inspection

INFOID:0000000009649167

1.

CHECK SELECTIVE UNLOCK RELAY

1.

Turn ignition switch OFF.

2.

Remove selective unlock relay.

3.

Check the continuity between selective unlock relay terminals
under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Replace selective unlock relay.

Selective unlock relay

BCM

Continuity

Connector

Terminal

Connector

Terminal

M91

2

M122

50

Existed

BCM

Ground

Continuity

Connector

Terminal

M122

50

Not existed

Terminal

Condition

Continuity

4

3

No current supply

Existed

12 V direct current supply between ter-
minals 1 and 2.

Not existed

5

12 V direct current supply between ter-
minals 1 and 2.

Existed

No current supply

Not existed

JMLIA0997ZZ

UNLOCK SENSOR

DLK-259

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

UNLOCK SENSOR

Component Function Check

INFOID:0000000009649168

1.

CHECK FUNCTION

1.

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

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-259, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009649169

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?

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

D48

3

Ground

7.0 - 8.0 V

PKIB4960J

BCM

Front door lock assembly (driver side)

Continuity 

Connector

Terminal

Connector

Terminal

M121

31

D48

3

Existed

BCM

Ground

Continuity 

Connector

Terminal

M121

31

Not existed

DLK-260

< DTC/CIRCUIT DIAGNOSIS >

UNLOCK SENSOR

YES

>> Replace BCM. Refer to 

BCS-98, "Removal and Installation"

.

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-260, "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-42, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000009649170

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

D48

4

Existed

Front door lock assembly (driver side)

Condition

Continuity

Terminal

3

4

Driver side door

Unlock

Existed

Lock

Not existed

DOOR KEY CYLINDER SWITCH

DLK-261

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

DOOR KEY CYLINDER SWITCH

WITH AUTOMATIC SLIDING DOOR

WITH AUTOMATIC SLIDING DOOR : Component Function Check

INFOID:0000000009649171

1.

CHECK FUNCTION

1.

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

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-261, "WITH AUTOMATIC SLIDING DOOR : Diagnosis Procedure"

.

WITH AUTOMATIC SLIDING DOOR : Diagnosis Procedure

INFOID:0000000009649172

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.

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

(+)

(–)

Signal

(Reference value)

Front door lock assembly (driver side)

Connector

Terminal 

D48

5

Ground

7.0 - 8.0 V

6

PKIB4960J

Power window main switch

Front door lock assembly (driver side)

Continuity

Connector

Terminal

Connector

Terminal

D5

4

D48

6

Existed

6

5