Infiniti G35 (V35) Sedan. Manual — part 147
AV-360
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
U1220 AV CONTROL UNIT
U1220 AV CONTROL UNIT
Description
INFOID:0000000000964802
Replace the AV control unit if this DTC is displayed. Refer to
.
DTC Logic
INFOID:0000000000964803
Part name
Description
AV CONTORL UNIT
• Integrates HDD (hard disk drive) allowing map data and music data to be
stored.
• It is the master unit of the MULTI AV system, and it is connected to each control
unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.
• The AV control unit includes the audio, hands-free phone, voice control, navi-
gation, and vehicle information functions.
• It is connected to ECM and unified meter and A/C amp. via CAN communica-
tion to obtain necessary information for the vehicle information function.
• It inputs the automatic brightness ON/OFF signals that are required for the dis-
play dimming control.
• It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
DTC
Display contents of
CONSULT-III
DTC Detection Condition
Action to take
U1220
XM SERIAL COMM
[U1220]
Internal malfunction of AV control unit (satellite radio tuner
communication error) is detected.
Replace AV control unit
AV
U121A AV CONTROL UNIT
AV-361
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
N
A
O
P
U121A AV CONTROL UNIT
Description
INFOID:0000000000964804
Replace the AV control unit if this DTC is displayed. Refer to
DTC Logic
INFOID:0000000000964805
Part name
Description
AV CONTORL UNIT
• Integrates HDD (hard disk drive) allowing map data and music data to be
stored.
• It is the master unit of the MULTI AV system, and it is connected to each control
unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.
• The AV control unit includes the audio, hands-free phone, voice control, navi-
gation, and vehicle information functions.
• It is connected to ECM and unified meter and A/C amp. via CAN communica-
tion to obtain necessary information for the vehicle information function.
• It inputs the automatic brightness ON/OFF signals that are required for the dis-
play dimming control.
• It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
DTC
Display contents of
CONSULT-III
DTC Detection Condition
Action to take
U121A
HDD-WRITE
[U121A]
Internal malfunction of AV control unit (HDD write mal-
function) is detected.
Replace AV control unit
AV-362
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
U121B AV CONTROL UNIT
U121B AV CONTROL UNIT
Description
INFOID:0000000000964806
Replace the AV control unit if this DTC is displayed. Refer to
.
DTC Logic
INFOID:0000000000964807
Part name
Description
AV CONTORL UNIT
• Integrates HDD (hard disk drive) allowing map data and music data to be
stored.
• It is the master unit of the MULTI AV system, and it is connected to each control
unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.
• The AV control unit includes the audio, hands-free phone, voice control, navi-
gation, and vehicle information functions.
• It is connected to ECM and unified meter and A/C amp. via CAN communica-
tion to obtain necessary information for the vehicle information function.
• It inputs the automatic brightness ON/OFF signals that are required for the dis-
play dimming control.
• It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
DTC
Display contents of
CONSULT-III
DTC Detection Condition
Action to take
U121B
HDD-COMM
[U121B]
Internal malfunction of AV control unit (HDD communica-
tion error) is detected.
Replace AV control unit
AV
U121C AV CONTROL UNIT
AV-363
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
N
A
O
P
U121C AV CONTROL UNIT
Description
INFOID:0000000000964808
Replace the AV control unit if this DTC is displayed. Refer to
DTC Logic
INFOID:0000000000964809
Part name
Description
AV CONTORL UNIT
• Integrates HDD (hard disk drive) allowing map data and music data to be
stored.
• It is the master unit of the MULTI AV system, and it is connected to each control
unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.
• The AV control unit includes the audio, hands-free phone, voice control, navi-
gation, and vehicle information functions.
• It is connected to ECM and unified meter and A/C amp. via CAN communica-
tion to obtain necessary information for the vehicle information function.
• It inputs the automatic brightness ON/OFF signals that are required for the dis-
play dimming control.
• It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
DTC
Display contents of
CONSULT-III
DTC Detection Condition
Action to take
U121C
HDD-ACCESS
[U121C]
Internal malfunction of AV control unit (HDD access error)
is detected.
Replace AV control unit
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