Nissan Titan. Manual - part 468

DOOR SWITCH

PWC-45

< DTC/CIRCUIT DIAGNOSIS >

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PWC

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1. Turn ignition switch OFF.

2. Disconnect BCM and front door switch.

3. Check continuity between BCM connector and front door switch

connector.

4. Check continuity between front door switch 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 connector and ground.

Is the measurement value within the specification?

YES

>> GO TO 4

NO

>> Replace BCM. Refer to 

BCS-52, "Removal and Installation"

.

4.

 CHECK FRONT DOOR SWITCH

Check front door switch.

Refer to 

PWC-46, "Component Inspection (Crew Cab)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-42, "Intermittent Incident"

.

NO

>> Replace front door switch. 

Diagnosis Procedure (King Cab)

INFOID:0000000009878988

Regarding Wiring Diagram information, refer to 

PWC-81, "Wiring Diagram - King Cab"

.

1.

 CHECK FRONT DOOR SWITCH

BCM connector

Terminal

Front door switch

 connector

Terminal

Continuity

M18

12

RH: B108

2

Yes

M19

47

LH: B8

Front door switch 

connector

Terminal

Ground

Continuity

B8 (LH)

2

No

B108 (RH)

LIIA0947E

Terminal

Voltage (V)

(Approx.)

(+)

(–)

BCM connector

Terminal 

M18

12

Ground

Battery voltage

M19

47

LIIA0946E

PWC-46

< DTC/CIRCUIT DIAGNOSIS >

DOOR SWITCH

Check voltage between BCM connector and ground.

Is the measurement value within the specification?

YES

>> Replace BCM. Refer to 

BCS-52, "Removal and Installation"

.

NO

>> GO TO 2

2.

 CHECK FRONT DOOR SWITCH GROUND CIRCUIT 

1. Disconnect front door switch.

2. Check continuity between front door switch 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 connector and ground.

Is the measurement value within the specification?

YES

>> GO TO 4

NO

>> Replace BCM. Refer to 

BCS-52, "Removal and Installation"

.

4.

 CHECK FRONT DOOR SWITCH

Check front door switch.

Refer to 

PWC-47, "Component Inspection (King Cab)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-42, "Intermittent Incident"

.

NO

>> Replace front door switch. 

Component Inspection (Crew Cab)

INFOID:0000000009878989

1.

 CHECK FRONT DOOR SWITCH

Terminals

Door condition

Voltage (V)

(Approx.)

(+)

(–)

BCM

 connector

Terminal 

M18

12

Ground

Front door 

RH

OPEN

0

CLOSE

Battery voltage

M19

47

Front door 

LH

OPEN

0

CLOSE

Battery voltage

LIIA0946E

Front door switch 

connector

Terminal

Ground

Continuity 

B8 (LH)

3

Yes

B108 (RH)

ALJIA0221ZZ

Terminal

Voltage (V)

(Approx.)

(+)

(–)

BCM connector

Terminal 

M18

12

Ground

Battery voltage

M19

47

LIIA0946E

DOOR SWITCH

PWC-47

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

PWC

N

O

P

1. Turn ignition switch OFF.

2. Disconnect front door switch.

3. Check continuity between front door switch terminals.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace front door switch.

Component Inspection (King Cab)

INFOID:0000000009878990

1.

 CHECK FRONT DOOR SWITCH

1. Turn ignition switch OFF.

2. Disconnect front door switch.

3. Check continuity between front door switch terminals.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace front door switch.

Terminal

Condition

Continuity

Front door switch

2

Ground part of 

door switch

Front door switch

Pushed

No

Released

Yes

LIIA2377E

Terminal

Condition

Continuity

Front door switch

2

3

Front door switch

Pushed

No

Released

Yes

LIIA2376E

PWC-48

< DTC/CIRCUIT DIAGNOSIS >

FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) CHECK (CREW 

CAB)

FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) CHECK
(CREW CAB)

Description

INFOID:0000000009878991

Main power window and door lock/unlock switch detects condition of the door key cylinder and transmits to

BCM as the LOCK or UNLOCK signals. 

Component Function Check

INFOID:0000000009878992

1.

 CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

Check (“KEY CYL LK-SW”, “KEY CYL UN-SW”) in “DATA MONITOR” mode for “POWER DOOR LOCK SYS-

TEM” with CONSULT. Refer to 

BCS-16, "DOOR LOCK : CONSULT Function (BCM - DOOR LOCK)"

.

Is the inspection result normal?

YES

>> Key cylinder switch is OK.

NO

>> Refer to 

PWC-48, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009878993

Regarding Wiring Diagram information, refer to 

PWC-88, "Wiring Diagram - Crew Cab"

.

1.

 CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL 

1. Turn ignition switch ON.

2. Check voltage between main power window and door lock/

unlock switch connector and ground.

Is the measurement value within the specification?

YES

>> Replace main power window and door lock/unlock switch. 

NO

>> GO TO 2

2.

 CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT

Monitor item

Condition

KEY CYL LK-SW

Lock

: ON

Neutral / Unlock

: OFF

KEY CYL UN-SW

Unlock

: ON

Neutral / Lock

: OFF

Terminals

Key position

Voltage (V)

(Approx.)

(+)

(–)

Main power window 

and door lock/unlock 

switch connector

Terminal 

D7

4

Ground

Lock

0

Neutral/Unlock

5

6

Unlock

0

Neutral/Lock

5

ALKIA0309ZZ