Nissan Leaf. Manual - part 1279

WCS

METER BUZZER CIRCUIT

WCS-43

< DTC/CIRCUIT DIAGNOSIS >

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METER BUZZER CIRCUIT

Component Function Check

INFOID:0000000010121638

1.

CHECK OPERATION OF METER BUZZER

1. Select “BUZZER” of “BCM” using CONSULT.

2. Perform “LIGHT WARN ALM” in “Active Test”.
Does meter buzzer beep?

YES

>> Inspection End.

NO

>> GO TO 2.

2.

CHECK COMBINATION METER INPUT SIGNAL

Select “Data Monitor” of “METER/M&A” using CONSULT and check the “BUZZER” monitor value.

Is the inspection result normal?

YES

>> Replace combination meter. Refer to 

MWI-102, "Removal and Installation"

.

NO

>> Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

Diagnosis Procedure

INFOID:0000000010121639

1.

CHECK POWER SUPPLY OF COMBINATION METER

Check power supply of combination meter. Refer to 

MWI-85, "COMBINATION METER : Diagnosis Proce-

dure"

.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connector.

BUZZER
Under the condition of buzzer input

: On

Except above

: Off

WCS-44

< DTC/CIRCUIT DIAGNOSIS >

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT (DRIVER SIDE)

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT (DRIVER SIDE)

Component Function Check

INFOID:0000000010121640

1.

CHECK COMBINATION METER INPUT SIGNAL

Select “Data Monitor” of “METER/M&A” using CONSULT and check the “BUCKLE SW” monitor value.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Refer to 

WCS-44, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010121641

Regarding Wiring Diagram information, refer to 

WCS-34, "Wiring Diagram"

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1.

CHECK COMBINATION METER INPUT SIGNAL

1. Turn power switch ON.

2. Check voltage between combination meter harness connector and ground.

Is the inspection result normal?

YES

>> Replace combination meter. Refer to 

MWI-102, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE) CIRCUIT

1. Turn power switch OFF.

2. Disconnect combination meter connector and seat belt buckle switch (driver side) connector.

3. Check continuity between combination meter harness connector and seat belt buckle switch (driver side)

harness connector.

4. Check harness continuity between combination meter harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

Monitor Item

Condition

Status

BUCKLE SW

When seat belt buckle (driver side) is fastened

OFF

When seat belt buckle (driver side) is unfastened

ON

Terminals

Condition

Voltage

(Approx.)

(+)

(-)

Combination meter

Ground

Connector

Terminal

M34

40

When seat belt buckle (driver side) is fastened

Battery voltage

When seat belt buckle (driver side) is unfastened

0 V

Combination meter

Seat belt buckle switch (driver side)

Continuity

Connector

Terminal

Connector

Terminal

M34

40

B50

1

Yes

Combination meter

Ground

Continuity

Connector

Terminal

M34

40

No

WCS

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT (DRIVER SIDE)

WCS-45

< DTC/CIRCUIT DIAGNOSIS >

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3.

CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE) GROUND CIRCUIT

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

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connector.

Component Inspection

INFOID:0000000010121642

1.

CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE)

1. Turn power switch OFF.

2. Disconnect the seat belt buckle switch (driver side) connector.

3. Check continuity between terminals.

Is the inspection result normal?

YES

>> Inspection End.

NO

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

SB-14, "SEAT BELT BUCKLE : Removal and

Installation"

.

Seat belt buckle switch (driver side)

Ground

Continuity

Connector

Terminal

B50

2

Yes

Terminal

Condition

Continuity

1

2

When seat belt buckle (driver side) is fastened

No

When seat belt buckle (driver side) is unfastened

Yes

WCS-46

< SYMPTOM DIAGNOSIS >

THE LIGHT REMINDER WARNING DOES NOT SOUND

SYMPTOM DIAGNOSIS

THE LIGHT REMINDER WARNING DOES NOT SOUND

Description

INFOID:0000000010121643

Light reminder warning chime does not sound even though headlamp is illuminated.

Diagnosis Procedure

INFOID:0000000010121644

1.

CHECK COMBINATION SWITCH (LIGHTING SWITCH) OPERATION

Check that the headlamps operate normally by operating the combination switch (lighting switch).
Do they operate normally?

YES

>> GO TO 2.

NO

>> Refer to 

EXL-114, "WITHOUT DAYTIME RUNNING LIGHT SYSTEM : Symptom Table"

.

2.

CHECK FRONT DOOR SWITCH LH SIGNAL CIRCUIT

Check the front door switch LH signal circuit. Refer to 

DLK-102, "Diagnosis Procedure"

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Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

CHECK FRONT DOOR SWITCH LH 

Check the front door switch LH. Refer to 

DLK-103, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

NO

>> Replace front door switch LH. Refer to 

DLK-203, "Removal and Installation"

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