Nissan Pathfinder. Manual - part 355

DLK-186

< DTC/CIRCUIT DIAGNOSIS >

DOOR LOCK ACTUATOR

Is the inspection result normal?

YES

>> Replace rear door lock actuator RH. Refer to 

DLK-305, "DOOR LOCK : Removal and Installation"

.

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 actuator RH 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.

Is the inspection result normal?

YES

>> Check for internal short of each door lock actuator.

NO

>> Replace BCM. Refer to 

BCS-80, "Removal and Installation"

.

(+)

(–)

Condition

Voltage

(Approx.)

Rear door lock actuator RH

Connector

Terminal

D305

1

Ground

Door lock and unlock switch

Unlock

12 V

2

Lock

BCM

Rear door lock actuator RH

Continuity 

Connector

Terminal

Connector

Terminal

M81

133

D305

1

Yes

M81

132

2

BCM

Ground

Continuity 

Connector

Terminal

M81

133

No

M81

132

(+)

(–)

Condition

Voltage

(Approx.)

BCM

Connector

Terminal

M81

133

Ground

Door lock and unlock switch

Unlock

12 V

M81

132

Lock

FUEL LID LOCK ACTUATOR

DLK-187

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

FUEL LID LOCK ACTUATOR

Component Function Check

INFOID:0000000009175733

1.

CHECK FUNCTION

1. Select DOOR LOCK of BCM using CONSULT.

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

>> Fuel lid door lock actuator is OK.

NO

>> Refer to 

DLK-187, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009175734

Regarding Wiring Diagram information, refer to 

DLK-61, "Wiring Diagram"

.

1.

CHECK FUEL LID DOOR LOCK ACTUATOR INPUT SIGNAL

1. Turn ignition switch OFF.

2. Disconnect fuel lid door lock actuator connector.

3. Check voltage between fuel lid door lock actuator harness connector and ground.

Is the inspection result normal?

YES

>> Replace fuel lid door lock actuator. Refer to 

DLK-310, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK FUEL LID DOOR LOCK ACTUATOR CIRCUIT

1. Disconnect BCM, all door lock actuators connector.

2. Check continuity between BCM harness connector and fuel lid door lock actuator 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.)

Fuel lid door lock actuator

Connector

Terminal

B20

1

Ground

Door lock and unlock 
switch

Unlock

12 V

2

Lock

BCM

Fuel lid door lock actuator 

Continuity 

Connector

Terminal

Connector

Terminal

M81

135

B20

2

Yes

137

1

BCM

Ground

Continuity 

Connector

Terminal

M81

135

No

137

DLK-188

< DTC/CIRCUIT DIAGNOSIS >

FUEL LID LOCK ACTUATOR

Is the inspection result normal?

YES

>> Check for internal short of each door lock actuator.

NO

>> Replace BCM. Refer to 

BCS-80, "Removal and Installation"

.

(+)

(–)

Condition

Voltage

(Approx.)

BCM

Connector

Terminal

M81

135

Ground

Door lock and unlock switch

Lock

12 V

137

Unlock

UNLOCK SENSOR

DLK-189

< 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:0000000009175735

1.

CHECK FUNCTION

1. Select INTELLIGENT KEY of BCM using CONSULT.

2. Select UNLK SEN-DR in DATA MONITORmode.

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-189, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009175736

Regarding Wiring Diagram information, refer to 

DLK-61, "Wiring Diagram"

.

1.

CHECK UNLOCK SENSOR INPUT SIGNAL

1. Turn ignition switch OFF.

2. Disconnect front door lock assembly LH connector.

3. Check signal between front door lock assembly LH harness connector and ground with oscilloscope.

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 LH harness connector.

3. Check continuity between BCM harness connector and ground.

Monitor item

Condition

Status

UNLK SEN -DR

Driver side door

Lock

OFF

Unlock

ON

(+)

(–)

Signal

(Reference value)

Front door lock assembly LH

Connector

Terminal

D14

3

Ground

PKIB4960J

BCM

Front door lock assembly LH

Continuity 

Connector

Terminal

Connector

Terminal

M18

30

D14

3

Yes

BCM

Ground

Continuity 

Connector

Terminal

M18

30

No