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DEF-6
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
System DiagramINFOID:0000000006299425
System DescriptionINFOID:0000000006299426
System Description
Multifunction switch (rear window defogger switch) transmits rear window defogger switch signal to AV con-
trol unit via AV communication when rear window defogger switch is turned ON, while ignition switch is ON.
AV control unit transmits rear window defogger switch signal to BCM via CAN communication.
BCM transmits rear defogger window switch signal to IPDM E/R for approximately 15 minutes via CAN com-
munication when rear window defogger switch signal is received.
IPDM E/R turns rear window defogger relay ON when rear window defogger switch signal is received.
Power supply is supplied to rear window defogger and door mirror defoggers when rear window defogger
relay is ON.
Wiper deicer relay turns ON when rear window defogger relay is ON.
Power is supply to wiper deicer when wiper deicer relay is ON.
AV control unit transmits rear window defogger contro l signal to multifunction switch (rear window defogger
switch) via AV communication.
IPDM E/R transmits rear window defogger control signal to AV control unit via CAN communication.
Timer function
BCM turns rear window defogger relay ON for appr oximately 15 minutes when rear window defogger switch
is turned ON to operate rear window defogger, door mirror defoggers and wiper deicer.
Timer is canceled when rear window defogger switch is pressed again during timer operation. BCM turns
rear window defogger relay OFF. The same operation also occurs when the ignition switch is turned OFF
during timer operation.
JMLIA0981GB
Revision: 2010 May2011 QX56
Page 1508 of 5598
DEF-16
< WIRING DIAGRAM >
REAR WINDOW DEFOGGER SYSTEM
WIRING DIAGRAM
REAR WINDOW DEFOGGER SYSTEM
Wiring DiagramINFOID:0000000006299432
JCLWM5500GB
Revision: 2010 May2011 QX56
Page 1509 of 5598
REAR WINDOW DEFOGGER SYSTEMDEF-17
< WIRING DIAGRAM >
C
DE
F
G H
I
J
K
M A
B
DEF
N
O P
JCLWM5501GB
Revision: 2010 May2011 QX56
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DEF-18
< WIRING DIAGRAM >
REAR WINDOW DEFOGGER SYSTEM
JCLWM5502GB
Revision: 2010 May2011 QX56
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REAR WINDOW DEFOGGER SYSTEMDEF-19
< WIRING DIAGRAM >
C
DE
F
G H
I
J
K
M A
B
DEF
N
O P
JCLWM5503GB
Revision: 2010 May2011 QX56
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DEF-20
< WIRING DIAGRAM >
REAR WINDOW DEFOGGER SYSTEM
JCLWM5504GB
Revision: 2010 May2011 QX56
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REAR WINDOW DEFOGGER SYSTEMDEF-21
< WIRING DIAGRAM >
C
DE
F
G H
I
J
K
M A
B
DEF
N
O P
JCLWM5505GB
Revision: 2010 May2011 QX56
Page 1514 of 5598
DEF-22
< WIRING DIAGRAM >
REAR WINDOW DEFOGGER SYSTEM
JCLWM5506GB
Revision: 2010 May2011 QX56