Nissan Quest E52. Manual - part 309

 

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Nissan Quest E52. Manual - part 309

 

 

DAS-78

< DTC/CIRCUIT DIAGNOSIS >

[BSW]

BSW SWITCH CIRCUIT

BSW SWITCH CIRCUIT

Component Function Check

INFOID:0000000009940768

1.

CHECK BSW SWITCH INPUT SIGNAL

1.

Turn the ignition switch ON.

2.

Select the DATA MONITOR item “WARN SYS SW” of “BSW” with CONSULT.

3.

With operating the BSW switch, check the monitor status.

Is the inspection result normal?

YES

>> BSW switch circuit is normal.

NO

>> Refer to 

DAS-78, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009940769

1.

CHECK BSW SWITCH SIGNAL INPUT

1.

Turn the ignition switch ON.

2.

With operating the BSW switch, check voltage between BSW control module harness connector and
ground.

Is the inspection result normal?

YES

>> Replace the BSW control module. Refer to 

DAS-84, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK BSW SWITCH

1.

Turn ignition switch OFF.

2.

Remove BSW switch.

3.

Check BSW switch. Refer to 

DAS-88, "Removal and Installation"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace the BSW switch. Refer to 

DAS-88, "Removal and Installation"

.

3.

CHECK BSW SWITCH GROUND CIRCUIT

Check continuity between BSW switch harness connector and the ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair harness or connector.

4.

CHECK BSW SWITCH SIGNAL INPUT CIRCUIT FOR OPEN

1.

Disconnect the BSW control module connector.

Monitor item

Condition

Monitor status

WARN SYS 
SW

BSW switch is pressed

On

BSW switch is not pressed

OFF

Terminals

Condition

Voltage

(Approx.)

(+)

(

)

BSW control module

Ground

BSW switch

Connector

Terminal

M61

1

Pressed

0 V

Released

12 V

BSW switch 

Ground

Continuity

Connector

Terminal

M60

2

Existed

DAS

BSW SWITCH CIRCUIT

DAS-79

< DTC/CIRCUIT DIAGNOSIS >

[BSW]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

2.

Check continuity between the BSW control module harness connector and BSW switch harness connec-
tor.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair the harnesses or connectors.

5.

CHECK BSW SWITCH SIGNAL INPUT CIRCUIT FOR SHORT

Check continuity between the BSW control module harness connector and ground.

Is the inspection result normal?

YES

>> Replace the BSW control module. Refer to 

DAS-84, "Removal and Installation"

.

NO

>> Repair the harnesses or connectors.

Component Inspection

INFOID:0000000009940770

1.

CHECK BSW SWITCH

Check continuity of BSW switch.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace BSW switch.

BSW control module

BSW switch

Continuity

Connector

Terminal

Connector

Terminal

M61

1

M60

1

Existed

BSW control module

Ground

Continuity

Connector

Terminal

M61

1

Not existed

Terminal

Condition

Continuity

1

2

When BSW switch is pressed

Existed

When BSW switch is released

Not existed

DAS-80

< DTC/CIRCUIT DIAGNOSIS >

[BSW]

BSW ON INDICATOR CIRCUIT

BSW ON INDICATOR CIRCUIT

Diagnosis Procedure

INFOID:0000000009940771

1.

CHECK BSW ON INDICATOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BSW switch connector.

3.

Turn ignition switch ON.

4.

Check voltage between BSW switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the BSW ON indicator power supply circuit.

2.

CHECK BSW ON INDICATOR SIGNAL FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect the BSW control module harness connector.

3.

Check continuity between the BSW control module harness connector and BSW switch harness connec-
tor.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the harnesses or connectors.

3.

CHECK BSW ON INDICATOR SIGNAL CIRCUIT FOR SHORT

Check continuity between the BSW control module harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair the harnesses or connectors.

4.

CHECK BSW ON INDICATOR

Check the BSW ON indicator. Refer to 

DAS-80, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace the BSW control module. Refer to 

DAS-84, "Removal and Installation"

.

NO

>> Replace BSW switch. 

DAS-88, "Removal and Installation"

.

Component Inspection

INFOID:0000000009940772

1.

CHECK BSW ON INDICATOR

Apply battery voltage to BSW switch terminals 5 and 6, and then check if the BSW ON indicator illuminates.

Terminals

Voltage

(Approx.)

(+)

(

)

BSW switch

Ground

Connector

Terminal

M60

5

Battery voltage

BSW control module

BSW switch

Continuity

Connector

Terminal

Connector

Terminal

M61

4

M60

6

Existed

BSW control module

Ground

Continuity

Connector

Terminal

M61

4

Not existed

DAS

BSW ON INDICATOR CIRCUIT

DAS-81

< DTC/CIRCUIT DIAGNOSIS >

[BSW]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the BSW switch. Refer to 

DAS-88, "Removal and Installation"

.

Terminals

Condition

BSW ON indica-

tor

(+)

(-)

5

6

When the battery voltage is applied

On

When the battery voltage is not applied

Off

 

 

 

 

 

 

 

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