Infiniti QX56 (JA60). Manual — part 1002
WCS-6
< FUNCTION DIAGNOSIS >
WARNING CHIME SYSTEM
LIGHT REMINDER WARNING CHIME
LIGHT REMINDER WARNING CHIME : System Diagram
INFOID:0000000005146138
LIGHT REMINDER WARNING CHIME : System Description
INFOID:0000000005146139
DESCRIPTION
With ignition switch in OFF or ACC position, driver door open, and lighting switch in 1ST or 2ND position, the
light warning chime will sound.
• BCM detects ignition switch in OFF or ACC position, front door switch LH ON, and lighting switch in 1ST or
2ND position. And then transmits buzzer output signal (light reminder warning chime) to combination meter
with CAN communication line.
• When combination meter receives buzzer output signal (light reminder warning chime), it sounds the buzzer.
WARNING OPERATION CONDITIONS
If all of the following conditions are fulfilled
• Lighting switch is at 1st or 2nd position
• Ignition switch is at OFF or ACC
• Front door switch LH is ON
WARNING CANCEL CONDITIONS
Warning is canceled if any of the following conditions is fulfilled.
• Lighting switch OFF
• Ignition switch ON
• Front door switch LH is OFF
Seat belt buckle pre-tensioner as-
sembly LH (seat belt buckle
switch)
Transmits a seat belt buckle switch signal to the combination meter.
Combination switch
(Lighting switch)
Transmits the lighting switch position signal to BCM.
Front door switch LH
Transmits the door switch signal to BCM.
Unit
Description
WKIA5465E
WCS
WARNING CHIME SYSTEM
WCS-7
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
LIGHT REMINDER WARNING CHIME : Component Parts Location
INFOID:0000000005146140
LIGHT REMINDER WARNING CHIME : Component Description
INFOID:0000000005146141
SEAT BELT WARNING CHIME
AWNIA0211ZZ
1.
Combination meter M23, M24
2.
Combination switch (lighting switch)
M28
3.
BCM M18, M19, M20 (view with instru-
ment lower panel LH removed)
4.
Front door switch LH B8
5.
Key switch and ignition knob switch
M12
6.
Seat belt buckle pre-tensioner assem-
bly LH (seat belt buckle switch) B74
Unit
Description
Combination meter
Receives a buzzer output signal from BCM via CAN communication line and sounds the buzzer.
BCM
Judges the light warning conditions from the signals provided by various switches and transmits a
buzzer output signal to the combination meter via CAN communication line if necessary.
Combination switch
(Lighting switch)
Transmits the lighting switch position signal to BCM.
Front door switch LH
Transmits the door switch signal to BCM.
WCS-8
< FUNCTION DIAGNOSIS >
WARNING CHIME SYSTEM
SEAT BELT WARNING CHIME : System Diagram
INFOID:0000000005146142
SEAT BELT WARNING CHIME : System Description
INFOID:0000000005146143
DESCRIPTION
With ignition switch turned ON and driver seat belt unfastened, seat belt warning chime will sound for approxi-
mately 6 seconds.
• BCM receives seat belt buckle switch signal from combination meter with CAN communication line.
• BCM detects ignition switch turned ON and seat belt buckle switch LH ON. And then transmits buzzer output
signal (seat belt warning chime) to combination meter with CAN communication line.
• When combination meter receives buzzer output signal (seat belt warning chime), it sounds the buzzer.
WARNING OPERATION CONDITIONS
If all of the following conditions are fulfilled
• Ignition switch OFF
→ON
• Seat belt buckle switch LH is ON (driver seat belt not fastened)
WARNING CANCEL CONDITIONS
Cancels the warning if any of the following conditions is fulfilled.
• Ignition switch OFF
• Seat belt buckle switch LH is OFF (driver seat belt fastened)
AWNIA0156GB
WCS
WARNING CHIME SYSTEM
WCS-9
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
SEAT BELT WARNING CHIME : Component Parts Location
INFOID:0000000005146144
SEAT BELT WARNING CHIME : Component Description
INFOID:0000000005146145
AWNIA0211ZZ
1.
Combination meter M23, M24
2.
Combination switch (lighting switch)
M28
3.
BCM M18, M19, M20 (view with instru-
ment lower panel LH removed)
4.
Front door switch LH B8
5.
Key switch and ignition knob switch
M12
6.
Seat belt buckle pre-tensioner assem-
bly LH (seat belt buckle switch) B74
Unit
Description
Combination meter
• Receives the seat belt buckle switch signal from the seat belt buckle switch and transmits it to
BCM via CAN communication line.
• Receives a buzzer output signal from BCM via CAN communication line and sounds the buzzer.
BCM
Judges the seat belt warning condition from the seat belt buckle switch signal received from the
combination meter and transmits a buzzer output signal to the combination meter via CAN commu-
nication line if necessary.
Seat belt buckle pre-tensioner
assembly LH (seat belt buckle
switch)
Transmits seat belt buckle switch signal to combination meter.
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