Infiniti G37 Coupe. Manual — part 1388
WCS-24
< COMPONENT DIAGNOSIS >
SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
Description
INFOID:0000000001606830
Transmits a seat belt buckle switch signal to the unified meter and A/C amp.
Component Function Check
INFOID:0000000001606831
1.
CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1.
Connect the CONSULT-III.
2.
Select the “Data Monitor” of the “METER/M&A” and check the “BUCKLE SW” monitor value.
>> INSPECTION END
Diagnosis Procedure
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1.
CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between unified meter and A/C amp. harness connector terminal and ground.
Is the inspection result normal?
YES
>> Replace unified meter and A/C amp.
NO
>> GO TO 2.
2.
CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE) SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect unified meter and A/C amp. connector and seat belt buckle switch (driver side) connector.
3.
Check continuity between unified meter and A/C amp. harness connector terminal and seat belt buckle
switch (driver side) harness connector terminal.
4.
Check harness continuity between unified meter and A/C amp. harness connector terminal and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE) GROUND CIRCUIT
“BUCKLE SW”
When seat belt is fastened
: Off
When seat belt is unfastened
: On
Terminal
Condition
Voltage
(Approx.)
(+)
(–)
Combination meter
Connector
Terminal
M66
9
Ground
When seat belt is fastened
12 V
When seat belt is unfastened
0 V
Unified meter and A/C amp.
seat belt buckle switch (driver side)
Continuity
Connector
Terminal
Connector
Terminal
M66
9
B13
1
Existed
Unified meter and A/C amp.
Ground
Continuity
Connector
Terminal
M66
9
Not existed
WCS
SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
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< COMPONENT DIAGNOSIS >
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Check harness continuity between seat belt buckle switch (driver side) harness connector terminal and
ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000001606833
1.
CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE)
1.
Turn ignition switch OFF.
2.
Disconnect the seat belt buckle switch (driver side) connector.
3.
Check continuity between terminals 1 and 2.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the seat belt buckle switch (driver side). Refer to
.
seat belt buckle switch (driver side)
Ground
Continuity
Connector
Terminal
B13
2
Existed
Terminal
Seat belt buckle switch (driver side)
Continuity
1
2
When seat belt is fastened
Not existed
When seat belt is unfastened
Existed
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< COMPONENT DIAGNOSIS >
WARNING CHIME SYSTEM
WARNING CHIME SYSTEM
Wiring Diagram — WARNING CHIME —
INFOID:0000000001606834
JCNWA0448GB
WCS
WARNING CHIME SYSTEM
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< COMPONENT DIAGNOSIS >
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JCNWA0449GB
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