Nissan Leaf. Instruction — part 1279
WCS
METER BUZZER CIRCUIT
WCS-43
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
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K
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B
A
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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-
.
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
Diagnosis Procedure
INFOID:0000000010121641
Regarding Wiring Diagram information, refer to
.
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 >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
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
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"
.
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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