Nissan Titan A60. Manual - part 240

DLK-34

< DTC/CIRCUIT DIAGNOSIS >

DOOR LOCK AND UNLOCK SWITCH

CREW CAB : Diagnosis Procedure

INFOID:0000000006179200

Regarding Wiring Diagram information, refer to 

DLK-84, "Wiring Diagram - 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

1. Remove key from ignition key cylinder.

2. Check the signal between BCM connector M18 terminal 22 and ground with oscilloscope when door lock/

unlock switch is turned to LOCK or UNLOCK.

3. Make sure the signals which are shown in the figure below can be detected during 10 seconds just after

the door lock/unlock switch is turned to LOCK or UNLOCK.

Is the inspection result normal?

YES

>> Door lock and unlock switch circuit is OK.

NO

>> GO TO 2

2.

CHECK BCM OUTPUT SIGNAL

1. Turn ignition switch OFF.

2. Using the vehicle operational key fob, press and hold the UNLOCK button for more than 3 seconds.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Replace BCM. Refer to 

BCS-53, "Removal and Installation"

.

3.

CHECK DOOR LOCK/UNLOCK SWITCH GROUND HARNESS

1. Turn ignition switch OFF.

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

RH.

CDL LOCK SW

:ON

CDL UNLOCK SW

:ON

Connector

Terminals

Signal

(Reference value)

(+)

(–)

M18

22

Ground

PIIA6379E

PIIA1297E

The front windows should be lowered?

DOOR LOCK AND UNLOCK SWITCH

DLK-35

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

3. Check continuity between main power window and door lock/

unlock switch connector D8 terminal 17 and ground.

4. Check continuity between power window and door lock/unlock

switch RH connector D105 terminal 11 and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair or replace harness.

4.

CHECK POWER WINDOW SERIAL LINK CIRCUIT

1. Disconnect BCM.

2. Check continuity between BCM connector M18 terminal 22 and

main power window and door lock/unlock switch connector D7

terminal 14.

3. Check continuity between BCM connector M18 terminal 22 and

power window and door lock/unlock switch RH connector D105

terminal 16.

17 - Ground

: Continuity should exist

LIIA0392E

11 - Ground

: Continuity should exist

LIIA1140E

22 - 14

: Continuity should exist

LIIA0394E

22 - 16

: Continuity should exist

WIIA0598E

DLK-36

< DTC/CIRCUIT DIAGNOSIS >

DOOR LOCK AND UNLOCK SWITCH

4. Check continuity between BCM connector M18 terminal 22 and

ground.

Is the inspection result normal?

YES

>> Replace main power window and door lock/unlock

switch or power window and door lock/unlock switch

RH.

NO

>> Repair or replace harness.

22 - Ground

: Continuity should not exist

LIIA2359E

FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH)

DLK-37

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH)

KING CAB
KING CAB : Description

INFOID:0000000006179201

The main power window and door lock/unlock switch detects condition of the door key cylinder switch and

transmits to BCM as the LOCK or UNLOCK signal. 

KING CAB : Component Function Check

INFOID:0000000006179202

1.

CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

Check "KEY CYL LK-SW" AND "KEY CYL UN-SW" in DATA MONITOR mode for “POWER DOOR LOCK

SYSTEM” with CONSULT-III.

Is the inspection result normal?

YES

>> Key cylinder switch is OK.

NO

>> Refer to 

DLK-37, "KING CAB : Diagnosis Procedure"

.

KING CAB : Diagnosis Procedure

INFOID:0000000006179203

Regarding Wiring Diagram information, refer to 

DLK-77, "Wiring Diagram - King Cab"

.

1.

CHECK DOOR KEY CYLINDER SWITCH LH

With CONSULT-III

Check front door lock assembly LH (key cylinder switch) ("KEY CYL LK-SW") and ("KEY CYL UN-SW) in

DATA MONITOR mode with CONSULT–III. Refer to 

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

DOOR LOCK)"

.

• When key inserted in front key cylinder is turned to LOCK:

• When key inserted in front key cylinder is turned to UNLOCK:

Without CONSULT-III

Check voltage between main power window and door lock/unlock switch connector D15 terminals 6, 7 and

ground.

Monitor item

Condition

KEY CYL LK-SW

Lock

: ON

Neutral / Unlock

: OFF

KEY CYL UN-SW

Unlock

: ON

Neutral / Lock

: OFF

KEY CYL LK-SW

: ON

KEY CYL UN-SW

: ON