Nissan Qashqai J11. Manual - part 1003

SBC-14

< DTC/CIRCUIT DIAGNOSIS >

SEAT BELT BUCKLE SWITCH (DRIVER SIDE)

DTC/CIRCUIT DIAGNOSIS

SEAT BELT BUCKLE SWITCH (DRIVER SIDE)

Description

INFOID:0000000010500922

• Detects whether or not the seat belt is fastened when the ignition switch turns ON. If the seat belt is not fas-

tened, illuminates the seat belt warning lamp on the combination meter.

• The seat belt buckle switch is installed in the seat belt buckle.

Diagnosis Procedure

INFOID:0000000010500924

1.

CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE) 

Check seat belt buckle switch (driver side).
Refer to 

SBC-14, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace seat belt buckle (driver side). Refer to 

SB-8, "FRONT SEAT BELT BUCKLE : Removal

and Installation"

.

2.

CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT

1.

Disconnect seat belt buckle switch (driver side) connector.

2.

Check continuity between seat belt buckle switch (driver side) and ground.

LHD models

RHD models

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace harness.

Component Inspection

INFOID:0000000010500925

1.

CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE)

1.

Turn ignition switch OFF.

2.

Disconnect seat belt buckle switch connector.

3.

Check continuity of seat belt buckle (driver side).

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace seat belt buckle (driver side). Refer to 

SB-8, "FRONT SEAT BELT BUCKLE : Removal

and Installation"

.

Seat belt buckle switch (driver side)

Ground

Continuity

Connector

Terminal

B11

2

Existed

Seat belt buckle switch (driver side)

Ground

Continuity

Connector

Terminal

B69

2

Existed

Seat belt buckle switch (driver side)

Condition

Continuity

Terminal

1

2

When driver side seat belt is 
not fastened

Existed

When driver side seat belt is 
fastened

Not existed

SEAT BELT BUCKLE SWITCH (PASSENGER SIDE)

SBC-15

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SBC

N

O

P

SEAT BELT BUCKLE SWITCH (PASSENGER SIDE)

Description

INFOID:0000000010500926

• Detects whether or not the seat belt is fastened when the ignition switch turns ON. If the seat belt switch is

not fastened, illuminates the seat belt warning lamp on the combination meter.

• The seat belt buckle switch is installed in the seat belt buckle.

Diagnosis Procedure

INFOID:0000000010500928

1.

CHECK SEAT BELT BUCKLE SWITCH (PASSENGER SIDE) 

Check seat belt buckle switch (passenger side).
Refer to 

SBC-16, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace seat belt buckle (passenger side). Refer to 

SB-8, "FRONT SEAT BELT BUCKLE :

Removal and Installation"

.

2.

CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT1

1.

Disconnect seat belt buckle switch (passenger side) connector and occupant sensor connector.

2.

Check continuity between seat belt buckle switch (passenger side) and occupant sensor.

LHD models

RHD models

3.

Check continuity between seat belt buckle switch (passenger side) and ground.

LHD models

RHD models

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT2

Check continuity between occupant sensor and ground.

LHD models

RHD models

Seat belt buckle switch (passenger side)

Occupant sensor

Continuity

Connector

Terminal

Connector

Terminal

B69

2

B91

1

Existed

Seat belt buckle switch (passenger side)

Occupant sensor

Continuity

Connector

Terminal

Connector

Terminal

B11

2

B20

1

Existed

Seat belt buckle switch (passenger side)

Ground

Continuity

Connector

Terminal

B69

2

Not existed

Seat belt buckle switch (passenger side)

Ground

Continuity

Connector

Terminal

B11

2

Not existed

Occupant sensor

Ground

Continuity

Connector

Terminal

B91

2

Existed

Occupant sensor

Ground

Continuity

Connector

Terminal

B20

2

Existed

SBC-16

< DTC/CIRCUIT DIAGNOSIS >

SEAT BELT BUCKLE SWITCH (PASSENGER SIDE)

Is the inspection result normal?

YES

>> Replace seat cushion trim. Refer to 

SE-28, "Removal and Installation"

.

NO

>> Repair or replace harness.

Component Inspection

INFOID:0000000010500929

1.

CHECK SEAT BELT BUCKLE SWITCH (PASSENGER SIDE)

1.

Turn ignition switch OFF.

2.

Disconnect seat belt buckle switch connector.

3.

Check continuity of seat belt buckle (passenger side).

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace seat belt buckle (passenger side). Refer to 

SB-8, "FRONT SEAT BELT BUCKLE :

Removal and Installation"

.

Seat belt buckle switch (passenger side)

Condition

Continuity

Terminal

1

2

When driver side seat belt is 
not fastened

Existed

When driver side seat belt is 
fastened

Not existed

REAR SEAT BELT BUCKLE SWITCH

SBC-17

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SBC

N

O

P

REAR SEAT BELT BUCKLE SWITCH

Description

INFOID:0000000010500930

• Detects if the seat belt is fastened or unfastened.
• Warning lamp turns OFF if the seat belt is fastened.

Diagnosis Procedure

INFOID:0000000010500931

1.

CHECK REAR SEAT BELT BUCKLE SWITCH 

Check rear seat belt buckle switch.
Refer to 

SBC-17, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace rear seat belt buckle. Refer to 

SB-12, "SEAT BELT BUCKLE : Removal and Installation"

.

2.

CHECK REAR SEAT BELT BUCKLE SWITCH GROUND CIRCUIT

1.

Disconnect rear seat belt buckle switch connector.

2.

Check the continuity between rear seat belt buckle switch harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace harness.

Component Inspection 

INFOID:0000000010500932

1.

CHECK REAR SEAT BELT BUCKLE SWITCH 

Check continuity between rear seat belt buckle switch connector.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace rear seat belt buckle. Refer to 

SB-12, "SEAT BELT BUCKLE : Removal and Installation"

.

Rear seat belt buckle switch

Ground

Continuity

Connector

 Terminal

LH

B12

2

Ground

Existed

Center

B70

3

RH

B88

2

Rear seat belt buckle switch

Condition

Continuity

Connector

Terminal

LH

B12

1

2

Rear seat belt (LH) is unfas-
tened

Existed

Rear seat belt (LH) is fastened

Not existed

Center

B70

3

4

Rear seat belt (center) is unfas-
tened

Existed

Rear seat belt (center) is fas-
tened

Not existed

RH

B88

1

2

Rear seat belt (RH) is unfas-
tened

Existed

Rear seat belt (RH) is fastened

Not existed