Infiniti FX35, FX50 (S51). Manual — part 178
AV
U121E AV CONTROL UNIT
AV-485
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION (TWIN MONITOR)]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
U121E AV CONTROL UNIT
DTC Logic
INFOID:0000000005474814
Diagnosis Procedure
INFOID:0000000005474815
1.
CHECK PLAYBACK OF A DISK (CD)
Can a disk (CD) be played?
YES
>> Malfunction may be detected transitory.
NO
>> Replace AV control unit. Refer to
DTC
Display contents of
CONSULT-III
DTC detection condition
Possible malfunction factor
U121E
DSP COMM
[U121E]
AV control unit malfunction is detected.
• If a disc can be played, then there
is a possibility of the detection of a
temporary malfunction.
• Replace the AV control unit if the
malfunction occurs constantly.
AV-486
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION (TWIN MONITOR)]
U1225 AV CONTROL UNIT
U1225 AV CONTROL UNIT
DTC Logic
INFOID:0000000005474817
DTC DETECTION LOGIC
DTC
Display contents of CON-
SULT-III
DTC detection condition
Possible malfunction factor
U1225
USB CONTROLLER
[U1225]
USB connection malfunction is detected.
Check that the connection to the USB con-
nector is normal.
AV
U1227 AV CONTROL UNIT
AV-487
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION (TWIN MONITOR)]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
U1227 AV CONTROL UNIT
DTC Logic
INFOID:0000000005474819
Diagnosis Procedure
INFOID:0000000005474820
1.
CHECK PLAYBACK OF A DISK (DVD)
Can a disc (DVD) be played?
YES
>> Malfunction may be detected transitory.
NO
>> Replace AV control unit. Refer to
DTC
Display contents of
CONSULT-III
DTC detection condition
Possible malfunction factor
U1227
DVD COMM [U1227]
AV control unit malfunction is detected.
• If DVD can be played, then there is
a possibility of the detection of a
temporary malfunction.
• Replace the AV control unit if the
malfunction occurs constantly.
AV-488
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION (TWIN MONITOR)]
U1228 AV CONTROL UNIT
U1228 AV CONTROL UNIT
DTC Logic
INFOID:0000000005474822
DTC DETECTION LOGIC
DTC
Display contents of CON-
SULT-III
DTC detection condition
Possible malfunction factor
U1228
SUB CPU CONN [U1228]
AV control unit malfunction is detected.
Replace the AV control unit if the malfunction
occurs constantly.
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