Nissan Xterra. Manual - part 198

DLK-34

< DTC/CIRCUIT DIAGNOSIS >

KEY CYLINDER SWITCH

Check voltage between BCM connector M18 terminals 7, 8 and

ground.

Is the inspection result normal?

YES

>> Back door key cylinder switch signal is OK.

NO

>> GO TO 2

2.

CHECK BACK DOOR KEY CYLINDER SWITCH

1. Turn ignition switch OFF.

2. Disconnect back door key cylinder switch.

3. Check continuity between back door key cylinder switch terminals 1, 2 and 3.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Replace back door key cylinder switch.

3.

CHECK BACK DOOR KEY CYLINDER SWITCH HARNESS

1. Disconnect BCM.

2. Check continuity between BCM connector M18 terminals 7, 8

and back door key cylinder switch connector D505 terminals 3,

1.

3. Check continuity between BCM connector M18 terminals 7, 8

and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair or replace harness.

4.

CHECK BACK DOOR KEY CYLINDER SWITCH GROUND

Connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(–)

M18

7

Ground

Neutral/Lock

1.5

Unlock

0

8

Neutral/Unlock

1.5

Lock

0

WIIA0457E

Terminals

Condition

Continuity

1 – 2

Key is turned to LOCK.

Yes

Key is in N position or turned to UN-

LOCK

No

3 – 2

Key is turned to UNLOCK.

Yes

Key is in N position or turned to LOCK

No

7 - 3

: Continuity should exist.

8 - 1

: Continuity should exist.

7 - Ground

: Continuity should not exist.

8 - Ground

: Continuity should not exist.

WIIA0680E

KEY CYLINDER SWITCH

DLK-35

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

Check continuity between back door key cylinder switch connector

D505 terminal 2 and ground.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Repair or replace harness.

5.

CHECK BCM OUTPUT VOLTAGE

1. Connect BCM.

2. Check voltage between BCM connector M18 terminals 7, 8 and

ground.

Is the inspection result normal?

YES

>> Check condition of the harness and connector.

NO

>> Replace BCM. Refer to 

BCS-50, "Removal and Installa-

tion"

.

2 - Ground

: Continuity should exist.

WIIA0681E

7 - Ground

: Approx. 1.5V

8 - Ground

: Approx. 1.5V

WIIA0457E

DLK-36

< DTC/CIRCUIT DIAGNOSIS >

DOOR LOCK ACTUATOR

DOOR LOCK ACTUATOR

DRIVER SIDE
DRIVER SIDE : Description

INFOID:0000000009485037

Locks/unlocks the door with the signal from BCM.

DRIVER SIDE : Component Function Check

INFOID:0000000009485038

1.

CHECK FUNCTION

1. Use CONSULT to perform Active Test "DOOR LOCK".

2. Touch “ALL LCK” or “ALL ULK” to check that it works normally.
Is the inspection result normal?

YES

>> Door lock actuator is OK.

NO

>> Refer to 

DLK-36, "DRIVER SIDE : Diagnosis Procedure"

.

DRIVER SIDE : Diagnosis Procedure

INFOID:0000000009485039

Regarding Wiring Diagram information, refer to 

DLK-69, "Wiring Diagram"

.

1.

CHECK DOOR LOCK ACTUATOR SIGNAL

1. Turn ignition switch OFF.

2. Check voltage between BCM connector M20 terminals 59, 65

and ground.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> GO TO 3

2.

CHECK DOOR LOCK ACTUATOR HARNESS

1. Disconnect BCM and front door lock assembly LH (actuator).

2. Check continuity between BCM connector (A) M20 terminals 59,

65 and front door lock assembly LH (actuator) connector (B)

D14 terminals 1, 2. 

Is the inspection result normal?

YES

>> Replace front door lock assembly LH (actuator).

NO

>> Repair or replace harness.

Connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(-)

M20

59

Ground

Driver door lock/unlock 
switch is turned to UN-
LOCK

0 

→ Battery voltage

65

Driver door lock/unlock 
switch is turned to LOCK

0 

→ Battery voltage

LIIA1046E

Connector

Terminals

Connector

Terminals

Continuity

M20

59

D14

2

Yes

65

1

ALKIA1191ZZ

DOOR LOCK ACTUATOR

DLK-37

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

3.

CHECK DOOR LOCK ACTUATOR HARNESS

1. Disconnect BCM and front door lock assembly LH (actuator).

2. Check continuity between BCM connector M20 terminals 59, 65

and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-50, "Removal and Installation"

.

NO

>> Repair or replace harness.

PASSENGER SIDE
PASSENGER SIDE : Description

INFOID:0000000009485040

Locks/unlocks the door with the signal from BCM.

PASSENGER SIDE : Component Function Check

INFOID:0000000009485041

1.

CHECK FUNCTION

1. Use CONSULT to perform Active Test DOOR LOCK.

2. Touch “ALL LCK” or “ALL ULK” to check that it works normally.
Is the inspection result normal?

YES

>> Door lock actuator is OK.

NO

>> Refer to 

DLK-37, "PASSENGER SIDE : Diagnosis Procedure"

.

PASSENGER SIDE : Diagnosis Procedure

INFOID:0000000009485042

Regarding Wiring Diagram information, refer to 

DLK-69, "Wiring Diagram"

.

1.

CHECK FRONT DOOR LOCK ACTUATOR RH SIGNAL

1. Turn ignition switch OFF.

2. Check voltage between BCM connector M20 terminals 65, 66

and ground.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> GO TO 3

Connector

Terminals

Continuity

M20

59

Ground

No

65

ALKIA0633ZZ

Connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(-)

M20

65

Ground

Door lock/unlock switch is 
turned to LOCK

0 

→ Battery voltage 

for 300 ms

66

Door lock/unlock switch is 
turned to UNLOCK

LIIA1048E