Nissan Titan A60. Manual - part 785

PWC-44

< DTC/CIRCUIT DIAGNOSIS >

DOOR SWITCH

DOOR SWITCH

Description

INFOID:0000000006161075

Detects door open/close condition and transmits the signal to BCM.

Component Function Check

INFOID:0000000006161076

1.

 CHECK FRONT DOOR SWITCH INPUT SIGNAL

Check (“DOOR SW-DR” and “DOOR SW-AS”) in “DATA MONITOR” mode with CONSULT-III. Refer to 

BCS-

24, "RETAINED PWR : CONSULT-III Function (BCM - RETAINED PWR)"

.

Is the inspection result normal?

YES

>> Front door switch circuit is OK.

NO

>> Refer to 

PWC-44, "Diagnosis Procedure (Crew Cab)"

.

Diagnosis Procedure (Crew Cab)

INFOID:0000000006161077

Regarding Wiring Diagram information, refer to 

PWC-88, "Wiring Diagram - Crew Cab"

.

1.

 CHECK FRONT DOOR SWITCH

Check voltage between BCM connector and ground.

Is the measurement value within the specification?

YES

>> Replace BCM. Refer to 

BCS-53, "Removal and Installation"

.

NO

>> GO TO 2

2.

 CHECK HARNESS CONTINUITY

Monitor item

Condition

DOOR SW-DR

OPEN

: ON

CLOSE

: OFF

DOOR SW-AS

OPEN

: ON

CLOSE

: OFF

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

DOOR SWITCH

PWC-45

< 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 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-53, "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-39, "Intermittent Incident"

.

NO

>> Replace front door switch. 

Diagnosis Procedure (King Cab)

INFOID:0000000006161078

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-53, "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-53, "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-39, "Intermittent Incident"

.

NO

>> Replace front door switch. 

Component Inspection (Crew Cab)

INFOID:0000000006161079

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:0000000006161080

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