Nissan Titan A60. Manual - part 242

DLK-42

< DTC/CIRCUIT DIAGNOSIS >

KEY SWITCH (BCM INPUT)

KEY SWITCH (BCM INPUT)

COLUMN SHIFT
COLUMN SHIFT : Diagnosis Procedure

INFOID:0000000006179207

Regarding Wiring Diagram information, refer to 

DLK-77, "Wiring Diagram - King Cab"

 or 

DLK-84, "Wiring Dia-

gram - Crew Cab"

.

1.

CHECK KEY SWITCH INPUT SIGNAL

With CONSULT-III

Check key switch "KEY ON SW" in DATA MONITOR mode with CONSULT–III. Refer to 

DLK-20, "DOOR

LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

• When key is inserted to ignition key cylinder:

• When key is removed from ignition key cylinder:

Without CONSULT-III

Check voltage between BCM connector M18 terminal 37 and

ground.

Is the inspection result normal?

YES

>> Key switch circuit is OK.

NO

>> GO TO 2

2.

CHECK KEY SWITCH

1. Turn ignition switch OFF.

2. Disconnect key switch connector.

3. Check continuity between key switch terminals 3 and 4.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Replace key switch.

3.

CHECK KEY SWITCH CIRCUIT

1. Disconnect BCM connector.

KEY ON SW

:ON

KEY ON SW

:OFF

Connector

Terminals

Condition

Voltage (V)

(+)

(–)

M18

37

Ground

Key is inserted.

Battery voltage

Key is removed.

0

LIIA0567E

Terminals

Condition

Continuity

3 – 4

Key is inserted.

Yes

Key is removed.

No

WIIA0313E

KEY SWITCH (BCM INPUT)

DLK-43

< DTC/CIRCUIT DIAGNOSIS >

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DLK

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2. Check continuity between the BCM harness connector M18 ter-

minal 37 and key switch harness connector M80 terminal 4.

3. Check continuity between BCM harness connector M18 terminal

37 (B/R) and ground.

Is the inspection result normal?

YES

>> Check the following:

• 10A fuse [No. 19, located in fuse block (J/B)]

• Harness for open or short between key switch and

fuse

NO

>> Repair or replace harness.

FLOOR SHIFT
FLOOR SHIFT : Diagnosis Procedure

INFOID:0000000006179208

Regarding Wiring Diagram information, refer to 

DLK-77, "Wiring Diagram - King Cab"

 or 

DLK-84, "Wiring Dia-

gram - Crew Cab"

.

1.

CHECK KEY SWITCH AND KEY LOCK SOLENOID (KEY SWITCH) INPUT SIGNAL

With CONSULT-III

Check key switch "KEY ON SW" in DATA MONITOR mode with CONSULT–III. Refer to 

DLK-20, "DOOR

LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

• When key is inserted to ignition key cylinder:

• When key is removed from ignition key cylinder:

Without CONSULT-III

Check voltage between BCM connector M18 terminal 37 and

ground.

Is the inspection result normal?

YES

>> Key switch and key lock solenoid (key switch) circuit is

OK.

NO

>> GO TO 2

2.

CHECK KEY SWITCH AND KEY LOCK SOLENOID (KEY SWITCH)

1. Turn ignition switch OFF.

2. Disconnect key switch and key lock solenoid (key switch) connector.

3. Check continuity between key switch and key lock solenoid (key switch) terminals 3 and 4.

37 - 4

: Continuity should exist

37 - Ground

: Continuity should not exist

WIIA0596E

KEY ON SW

:ON

KEY ON SW

:OFF

Connector

Terminals

Condition

Voltage (V)

(+)

(–)

M18

37

Ground

Key is inserted.

Battery voltage

Key is removed.

0

LIIA0567E

DLK-44

< DTC/CIRCUIT DIAGNOSIS >

KEY SWITCH (BCM INPUT)

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Replace key switch and key lock solenoid (key switch).

3.

CHECK KEY SWITCH AND KEY LOCK SOLENOID (KEY SWITCH) CIRCUIT

1. Disconnect BCM connector.

2. Check continuity between the BCM harness connector M18 ter-

minal 37 and key switch and key lock solenoid (key switch) har-

ness connector M27 terminal 4.

3. Check continuity between BCM harness connector M18 terminal

37 and ground.

Is the inspection result normal?

YES

>> Check the following:

• 10A fuse [No. 19, located in fuse block (J/B)]

• Harness for open or short between key switch and key lock solenoid (key switch) and fuse

NO

>> Repair or replace harness.

Terminals

Condition

Continuity

3 – 4

Key is inserted.

Yes

Key is removed.

No

LIIA1044E

37 - 4

: Continuity should exist

37 - Ground

: Continuity should not exist

WIIA0597E

DOOR LOCK ACTUATOR

DLK-45

< DTC/CIRCUIT DIAGNOSIS >

C

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DOOR LOCK ACTUATOR

FRONT LH
FRONT LH : Description

INFOID:0000000006179209

Locks/unlocks the door with the signal from BCM.

FRONT LH : Component Function Check

INFOID:0000000006179210

1.

CHECK FUNCTION

1. Use CONSULT-III 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-45, "FRONT LH : Diagnosis Procedure"

.

FRONT LH : Diagnosis Procedure

INFOID:0000000006179211

Regarding Wiring Diagram information, refer to 

DLK-77, "Wiring Diagram - King Cab"

 or 

DLK-84, "Wiring Dia-

gram - Crew Cab"

.

1.

CHECK DOOR LOCK ACTUATOR SIGNAL

Check voltage between BCM connector M20 terminals 59, 65 and

ground.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> Replace BCM. Refer to 

BCS-53, "Removal and Installation"

.

2.

CHECK DOOR LOCK ACTUATOR HARNESS

1. Disconnect BCM and front door lock assembly LH.

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

and front door lock assembly LH connector D14 terminals 2, 3. 

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

and ground.

Is the inspection result normal?

Connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(-)

M20

59

Ground

Driver door lock/unlock 
switch is turned to UNLOCK

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

3

Yes

Connector

Terminals

Continuity

M20

59

Ground

No

65

No

WIIA0316E