Nissan Qashqai (2007-2010). Manual - part 766

SBC-12

< COMPONENT DIAGNOSIS >

REAR SEAT BELT BUCKLE SWITCH

REAR SEAT BELT BUCKLE SWITCH

Description

INFOID:0000000001094017

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

Component Function Check

INFOID:0000000001094018

1.

CHECK REAR SEAT BELT BUCKLE SWITCH FUNCTION

Check if the warning lamp turns OFF as soon as the seat belt is fastened.
Is the inspection results normal?

YES

>> Rear seat belt buckle switch is OK.

NO

>> Refer to 

SBC-12, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001085566

1.

CHECK REAR SEAT BELT BUCKLE CIRCUIT

1.

Turn ignition switch ON.

2.

Check voltage between rear seat belt buckle switch and ground.

Is the inspection result normal?

YES

>> Refer to 

GI-39, "Intermittent Incident"

.

NO

>> GO TO 2.

2.

CHECK INDICATOR UNIT OUTPUT SIGANL

Check voltage between indicator unit connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace indicator unit. Refer to 

SBC-36, "Removal and Installation"

.

3.

CHECK REAR SEAT BELT BUCKLE SWITCH HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect indictor unit and rear seat belt buckle switch connector.

3.

Check continuity between indictor unit and rear seat belt buckle switch harness connector.

Rear seat belt buckle 

switch connector

 Terminal

Condition

Voltage (V)

(Approx.)

(+)

(-)

B63 (LH and center)

1

Ground

Rear seat belt (LH) is fastened

Battery voltage

Rear seat belt (LH) is unfastened

0

3

Rear seat belt (center) is fastened

Battery voltage

Rear seat belt (center) is unfastened

0

B64 (RH and center)

1

Rear seat belt (RH) is fastened

Battery voltage

Rear seat belt (RH) is unfastened

0

3

Rear seat belt (center) is fastened

Battery voltage

Rear seat belt (center) is unfastened

0

 Indicator unit connector 

Terminal

Ground

Voltage (V)

(Approx.)

M91

3

Battery voltage

4

5

REAR SEAT BELT BUCKLE SWITCH

SBC-13

< COMPONENT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SBC

N

O

P

4.

Check continuity between indicator unit connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK GROUND CIRCUIT

Check continuity between rear sear belt buckle switch connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK REAR SEAT BELT BUKLE SWITCH 

Check rear seat belt buckle switch.
Refer to 

SBC-13, "Component Inspection"

.

Is the inspection result normal?

YES

>> Refer to 

GI-39, "Intermittent Incident"

.

NO

>> Replace rear seat belt buckle switch. Refer to 

SB-17, "SEAT BELT BUCKLE : Removal and Instal-

lation"

.

Component Inspection 

INFOID:0000000001088995

1.

CHECK SEAT BELT BUCKLE SWITCH 

Check continuity between rear seat belt buckle switch while performing the insertion operation to the rear seat
belt buckle.

Indicator unit connector

Terminal

Rear seat belt buckle switch connector

terminal

Continuity

M91

3

B63 (LH and center)

1

Existed

4

3

B64 (RH and center)

3

5

1

Indicator unit connector

Terminal

Ground

Continuity

M91

3

Not existed

4

5

Rear seat belt buckle switch connector 

Terminal

Ground

Continuity

B63 (LH and center)

2

Existed

4

B64 (RH and center)

2

4

Rear seat belt buckle switch connector

Terminal

Condition

Continuity

B63 (LH and center)

1

2

Rear seat belt (LH) is unfastened

Existed

Rear seat belt (LH) is fastened

Not existed

3

4

Rear seat belt (center) is unfastened

Existed

Rear seat belt (center) is fastened

Not existed

B64 (RH and center)

1

2

Rear seat belt (RH) is unfastened

Existed

Rear seat belt (RH) is fastened

Not existed

3

4

Rear seat belt (center) is unfastened

Existed

Rear seat belt (center) is fastened

Not existed

SBC-14

< COMPONENT DIAGNOSIS >

REAR SEAT BELT BUCKLE SWITCH

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Replace seat belt buckle switch. Refer to 

SB-17, "SEAT BELT BUCKLE : Removal and Installa-

tion"

.

ALTERNATOR SIGNAL CIRCUIT

SBC-15

< COMPONENT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SBC

N

O

P

ALTERNATOR SIGNAL CIRCUIT

Description

INFOID:0000000001080171

Transmits the “engine started” signal to indicator unit.

Component Function Check

INFOID:0000000001080172

1.

CHECK ALTERNATOR SIGNAL CIRCUIT

Check if the warning lamp turns OFF, approximately 35 seconds after the engine has started.

Is the inspection results normal?

YES

>> Alternator signal circuit is OK.

NO

>> Refer to 

SBC-15, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001080173

1.

CHECK INDICATOR UNIT INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect indicator unit connector.

3.

Turn ignition switch ON.

4.

Check voltage between indicator unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace indictor unit. Refer to 

SBC-36, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK ALTERNATOR HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect alternator connector.

3.

Check continuity between indictor unit and alternator harness connector.

*1 

With gasoline engine

*2

 With diesel engine

4.

Check continuity between indicator unit harness connector and ground.

Is the inspection result normal?

YES

>> Refer to 

GI-39, "Intermittent Incident"

.

NO

>> Repair or replace harness.

 Indictor unit connector

Terminal

Condition

Voltage (V)

(Approx.)

(+)

(-)

M91

6

Ground

Engine running

Battery voltage

Other than above

0

Indicator unit connector

Terminal

Alternator connector

terminal

Continuity

M91

6

R5

*1

3

*1

Existed

F60

*2

4

*2

Indicator unit connector

Terminal

Ground

Continuity

M91

6

Not existed