Nissan Xterra. Manual - part 556

DOOR SWITCH

PWC-27

< DTC/CIRCUIT DIAGNOSIS >

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DOOR SWITCH

Description

INFOID:0000000009483660

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

Component Function Check

INFOID:0000000009483661

1.

 CHECK FRONT DOOR SWITCH INPUT SIGNAL

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

BCS-24,

"RETAINED PWR : CONSULT Function (BCM - RETAINED PWR)"

.

Is the inspection result normal?

YES

>> Front door switch circuit is OK.

NO

>> Refer to 

PWC-27, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009483662

Regarding Wiring Diagram information, refer to 

PWC-42, "Wiring Diagram"

.

1.

 CHECK FRONT DOOR SWITCH

Check voltage between BCM connector and ground.

Is the measurement value within the specification?

YES

>> Door switch circuit is OK.

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

PWC-28

< DTC/CIRCUIT DIAGNOSIS >

DOOR SWITCH

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-50, "Removal and Installation"

.

4.

 CHECK FRONT DOOR SWITCH

Check front door switch.

Refer to 

PWC-28, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

NO

>> Replace front door switch. 

Component Inspection

INFOID:0000000009483663

1.

 CHECK FRONT DOOR SWITCH

Check front door switches.

Is the inspection result normal?

YES

>> Front door switch is OK.

NO

>> Replace 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

Terminal

Door switch

Continuity

Door switches

2

Ground part of 

door switch

Pressed

No

Released

Yes

LIIA2377E

POWER WINDOW LOCK SWITCH

PWC-29

< DTC/CIRCUIT DIAGNOSIS >

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POWER WINDOW LOCK SWITCH

Description

INFOID:0000000009483664

Ground circuit of main power window and door lock/unlock switch shuts off if power window lock switch of

main power window and door lock/unlock switch is operated. This inhibits all operation, except for the main

switch.

Component Function Check

INFOID:0000000009483665

1.

 CHECK POWER WINDOW LOCK SIGNAL

Exchanges for a normal main power window and door lock/unlock switch, and operation is checked.
Does power window lock operate?

YES

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

PWC-60, "Removal and Instal-

lation"

.

NO

>> Check condition of harness and connector.

PWC-30

< ECU DIAGNOSIS INFORMATION >

POWER WINDOW SYSTEM

ECU DIAGNOSIS INFORMATION

POWER WINDOW SYSTEM

Terminal Layout

INFOID:0000000009483666

Physical Values

INFOID:0000000009483667

LIIA2454E

Terminal

Wire Color

Item

Condition

Voltage (V)

(Approx.)

2

G/Y

Front power window motor RH 
DOWN signal

When power window motor is op-
erated DOWN

 Battery voltage

3

L/W

Front power window motor RH UP 
signal

When power window motor is op-
erated UP

 Battery voltage

5

W/R

RAP signal

When ignition switch ON

Battery voltage

Within 45 seconds after ignition 
switch is turned to OFF

Battery voltage

More than 45 seconds after igni-
tion switch is turned to OFF

0

When front door LH or RH open 
or power window timer operates

0

6

G/R

Front power window motor LH UP 
signal

When power window motor is op-
erated UP

 Battery voltage

7

G/W

Front power window motor LH 
DOWN signal

When power window motor is op-
erated DOWN

 Battery voltage

8

G/B

Rear power window RH
UP signal

When rear RH switch in 
main power window and door 
lock/unlock switch is operated
UP

 Battery voltage

9

R

Rear power window RH
DOWN signal

When rear RH switch in 
main power window and door 
lock/unlock switch is operated 
DOWN

 Battery voltage

14

B

Ground

—

0

15

R/B

Rear power window LH 
UP signal

When rear LH switch in
main power window and door 
lock/unlock switch is operated
UP

Battery voltage

16

R/Y

Rear power window LH 
DOWN signal

When rear LH switch in 
main power window and door 
lock/unlock switch is operated 
DOWN

Battery voltage