Infiniti FX35, FX50 (S51). Manual — part 1901
WCS-24
< DTC/CIRCUIT DIAGNOSIS >
SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
Description
INFOID:0000000005524724
Transmits a seat belt buckle switch signal to the unified meter and A/C amp.
Component Function Check
INFOID:0000000005524725
1.
CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
Select the “Data Monitor” for the “METER/M&A” and check the “BUCKLE SW” monitor value.
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005524726
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 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 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 and seat belt buckle switch
(driver side) harness connector.
*1: Without climate controlled seat
*2: With climate controlled seat
4.
Check harness continuity between unified meter and A/C amp. harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
BUCKLE SW
When seat belt is fastened
: Off
When seat belt is unfastened
: On
Terminals
Condition
Voltage
(Approx.)
(+)
(-)
Unified meter and A/C amp.
Ground
Connector
Terminal
M66
9
When driver seat belt is fastened
12 V
When driver 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
1
Existed
B503
*2
61
Existed
Unified meter and A/C amp.
Ground
Continuity
Connector
Terminal
M66
9
Not existed
WCS
SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
WCS-25
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
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J
K
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M
B
A
O
P
NO
>> Repair harness or connector.
3.
CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT
Check harness continuity between seat belt buckle switch (driver side) harness connector and ground.
*1: Without climate controlled seat
*2: With climate controlled seat
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000005524727
1.
CHECK SEAT BELT BUCKLE SWITCH UNIT
1.
Turn ignition switch OFF.
2.
Disconnect the seat belt buckle switch connector.
3.
Check continuity between terminals.
*1: Without climate controlled seat
*2: With climate controlled seat
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the seat belt buckle. Refer to
SB-8, "SEAT BELT BUCKLE : Removal and Installation"
.
Seat belt buckle switch (driver side)
Ground
Continuity
Connector
Terminal
B13
*1
2
Existed
B503
*2
60
Existed
Connector
Terminal
Condition
Continuity
B13
*1
1
2
When seat belt is fastened
Not existed
When seat belt is unfastened
Existed
B503
*2
61
60
When seat belt is fastened
Not existed
When seat belt is unfastened
Existed
WCS-26
< DTC/CIRCUIT DIAGNOSIS >
WARNING CHIME SYSTEM
WARNING CHIME SYSTEM
Wiring Diagram - WARNING CHIME -
INFOID:0000000005524728
JCNWA2824GB
WCS
WARNING CHIME SYSTEM
WCS-27
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
JCNWA2825GB
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