Nissan Frontier D40. Manual - part 218

DOOR LOCK AND UNLOCK SWITCH

DLK-35

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

CREW CAB : Diagnosis Procedure

INFOID:0000000005274513

Regarding Wiring Diagram information, refer to 

DLK-84, "Wiring Diagram—POWER DOOR LOCK SYSTEM

(Crew Cab)—"

.

1.

CHECK DOOR LOCK/UNLOCK SWITCH INPUT SIGNAL

With CONSULT-III

Check door lock/unlock switch ("CDL LOCK SW", "CDL UNLOCK SW") in DATA MONITOR mode in CON-
SULT–III. Refer to 

DLK-20, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

• When door lock/unlock switch is turned to LOCK:

• When door lock/unlock switch is turned to UNLOCK:

Without CONSULT-III

Check voltage between BCM connector M19 terminals 45, 46 and ground.

Is the inspection result normal?

YES

>> Door lock/unlock switch circuit is OK.

NO

>> GO TO 2

2.

CHECK DOOR LOCK/UNLOCK SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect door lock/unlock switch.

CDL LOCK SW

: ON

CDL UNLOCK SW

: ON

Connec-

tor

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(–)

M19

46

Ground

Door lock/unlock switch is 
neutral.

Battery voltage

Door lock/unlock switch is 
turned to UNLOCK.

0

45

Ground

Door lock/unlock switch is 
neutral.

Battery voltage

Door lock/unlock switch is 
turned to LOCK.

0

LIIA1351E

DLK-36

< COMPONENT DIAGNOSIS >

DOOR LOCK AND UNLOCK SWITCH

3.

Check continuity between main power window and door lock/
unlock switch terminals 10, 11 and 14.

4.

Check continuity between power window and door lock/unlock
switch RH terminals 1, 2 and 3.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Replace door lock/unlock switch.

3.

CHECK DOOR LOCK/UNLOCK SWITCH GROUND HARNESS

1.

Disconnect main power window and door lock/unlock switch or power window and door lock/unlock switch
RH.

2.

Check continuity between main power window and door lock/
unlock switch connector D7 terminal 14 and ground.

3.

Check continuity between power window and door lock/unlock
switch RH connector D105 terminal 3 and ground

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair or replace harness.

4.

CHECK DOOR LOCK SWITCH CIRCUIT

1.

Disconnect BCM.

2.

Check continuity between BCM connector M19 terminal 45 and main power window and door lock/unlock
switch connector D7 terminal 10 or power window and door lock/unlock switch RH connector D105 termi-
nal 1.

Terminal

Condition

Continuity

10

14

Lock

Yes

Unlock/Neutral

No

11

Unlock

Yes

Lock/Neutral

No

Terminal

Condition

Continuity

1

3

Lock

Yes

Unlock/Neutral

No

2

Unlock

Yes

Lock/Neutral

No

WIIA0675E

14 - Ground

: Continuity should exist.

WIIA0449E

3 - Ground

: Continuity should exist.

WIIA0450E

DOOR LOCK AND UNLOCK SWITCH

DLK-37

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

3.

Check continuity between BCM connector M19 terminal 45 and
ground.

4.

Check continuity between BCM connector M19 terminal 46 and main power window and door lock/unlock
switch LH connector D7 terminal 11 or power window and door lock/unlock switch RH connector D105 ter-
minal 2.

5.

Check continuity between BCM connector M19 terminal 46 and
ground.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Repair or replace harness.

5.

CHECK BCM OUTPUT VOLTAGE

1.

Connect BCM.

1 - 45

: Continuity should exist.

10 - 45

: Continuity should exist.

45 - Ground

: Continuity should not exist.

WIIA0630E

2 - 46

: Continuity should exist.

11 - 46

: Continuity should exist.

46 - Ground

: Continuity should not exist.

WIIA0631E

DLK-38

< COMPONENT DIAGNOSIS >

DOOR LOCK AND UNLOCK SWITCH

2.

Check voltage between BCM connector M19 terminals 45, 46
and ground.

Is the inspection result normal?

YES

>> Check condition of the harness and connector.

NO

>> Replace BCM. Refer to 

BCS-54, "Removal and Installa-

tion"

.

45 - Ground

: Battery voltage

46 - Ground

: Battery voltage

LIIA1351E