Nissan Murano Z51. Manual — part 209
AV
U121A AV CONTROL UNIT
AV-615
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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U121A AV CONTROL UNIT
Description
INFOID:0000000005528719
Replace the AV control unit if this DTC is displayed. Refer to
DTC Logic
INFOID:0000000005528720
Part name
Description
AV CONTROL UNIT
• Integrates hard disk drive (HDD) 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 communication. It operates each system according to communication
signals from the AV control unit.
• The AV control unit includes the audio, hands-free phone, voice control, navi-
gation, satellite radio, and vehicle information functions.
• It is connected to ECM, A/C auto amp. and combination meter via CAN com-
munication to obtain necessary information for the vehicle information function.
• It is connected to BCM via CAN communication transmitting/receiving for the
vehicle settings function.
• It inputs the illumination signals that are required for the display dimming con-
trol.
• It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
• Update of map data is performed with the CONSULT-III and the applicable ca-
ble.
• It includes the TEL adapter and Bluetooth
™
function.
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-616
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
U121B AV CONTROL UNIT
U121B AV CONTROL UNIT
Description
INFOID:0000000005528721
Replace the AV control unit if this DTC is displayed. Refer to
.
DTC Logic
INFOID:0000000005528722
Part name
Description
AV CONTROL UNIT
• Integrates hard disk drive (HDD) 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 communication. It operates each system according to communication
signals from the AV control unit.
• The AV control unit includes the audio, hands-free phone, voice control, navi-
gation, satellite radio, and vehicle information functions.
• It is connected to ECM, A/C auto amp. and combination meter via CAN com-
munication to obtain necessary information for the vehicle information function.
• It is connected to BCM via CAN communication transmitting/receiving for the
vehicle settings function.
• It inputs the illumination signals that are required for the display dimming con-
trol.
• It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
• Update of map data is performed with the CONSULT-III and the applicable ca-
ble.
• It includes the TEL adapter and Bluetooth
™
function.
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-617
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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U121C AV CONTROL UNIT
Description
INFOID:0000000005528723
Replace the AV control unit if this DTC is displayed. Refer to
DTC Logic
INFOID:0000000005528724
Part name
Description
AV CONTROL UNIT
• Integrates hard disk drive (HDD) 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 communication. It operates each system according to communication
signals from the AV control unit.
• The AV control unit includes the audio, hands-free phone, voice control, navi-
gation, satellite radio, and vehicle information functions.
• It is connected to ECM, A/C auto amp. and combination meter via CAN com-
munication to obtain necessary information for the vehicle information function.
• It is connected to BCM via CAN communication transmitting/receiving for the
vehicle settings function.
• It inputs the illumination signals that are required for the display dimming con-
trol.
• It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
• Update of map data is performed with the CONSULT-III and the applicable ca-
ble.
• It includes the TEL adapter and Bluetooth
™
function.
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.
AV-618
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
U121D AV CONTROL UNIT
U121D AV CONTROL UNIT
Description
INFOID:0000000005528725
Replace the AV control unit if this DTC is displayed. Refer to
.
DTC Logic
INFOID:0000000005528726
Part name
Description
AV CONTROL UNIT
• Integrates hard disk drive (HDD) 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 communication. It operates each system according to communication
signals from the AV control unit.
• The AV control unit includes the audio, hands-free phone, voice control, navi-
gation, satellite radio, and vehicle information functions.
• It is connected to ECM, A/C auto amp. and combination meter via CAN com-
munication to obtain necessary information for the vehicle information function.
• It is connected to BCM via CAN communication transmitting/receiving for the
vehicle settings function.
• It inputs the illumination signals that are required for the display dimming con-
trol.
• It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
• Update of map data is performed with the CONSULT-III and the applicable ca-
ble.
• It includes the TEL adapter and Bluetooth
™
function.
DTC
Display contents of
CONSULT-III
DTC Detection Condition
Action to take
U121D
DSP CONN
[U121D]
Internal malfunction of AV control unit (DSP connection
error) is detected.
Replace AV control unit.
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