Nissan Pathfinder. Manual — part 172
AV
U121D AV CONTROL UNIT
AV-515
< DTC/CIRCUIT DIAGNOSIS >
[PREMIUM AUDIO WITH NAVIGATION]
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U121D AV CONTROL UNIT
DTC Logic
INFOID:0000000009174713
Diagnosis Procedure
INFOID:0000000009174714
1.
CHECK CD PLAYBACK
Check the CD playback operation of the AV control unit. Refer to Owner’s Manual for audio system operating
instructions.
Is the CD playback function of the AV control unit operating normally?
YES
>> Refer to
GI-49, "Intermittent Incident"
.
NO
>> Replace AV control unit. Refer to
AV-611, "Removal and Installation"
CONSULT Display
DTC Detection Condition
Possible Cause
DSP CONN
[U121D]
AV control unit malfunction is detected.
An intermittent error causing disc player malfunc-
tion may be detected.
Replace AV control unit if malfunction occurs con-
stantly.
Refer to
AV-516
< DTC/CIRCUIT DIAGNOSIS >
[PREMIUM AUDIO WITH NAVIGATION]
U121E AV CONTROL UNIT
U121E AV CONTROL UNIT
DTC Logic
INFOID:0000000009174715
Diagnosis Procedure
INFOID:0000000009174716
1.
CHECK CD PLAYBACK
Check the CD playback operation of the AV control unit. Refer to Owner’s Manual for audio system operating
instructions.
Is the CD playback function of the AV control unit operating normally?
YES
>> Refer to
GI-49, "Intermittent Incident"
.
NO
>> Replace AV control unit. Refer to
AV-611, "Removal and Installation"
CONSULT Display
DTC Detection Condition
Possible Cause
DSP COMM
[U121E]
AV control unit malfunction is detected.
An intermittent error causing disc player malfunc-
tion may be detected.
Replace AV control unit if malfunction occurs con-
stantly.
Refer to
AV-611, "Removal and Installation"
.
AV
U1225 AV CONTROL UNIT
AV-517
< DTC/CIRCUIT DIAGNOSIS >
[PREMIUM AUDIO WITH NAVIGATION]
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U1225 AV CONTROL UNIT
DTC Logic
INFOID:0000000009174717
CONSULT Display
DTC Detection Condition
Possible Cause
USB CONTROLLER
[U1225]
USB connection malfunction is detected.
Check that connection to USB connector is nor-
mal.
AV-518
< DTC/CIRCUIT DIAGNOSIS >
[PREMIUM AUDIO WITH NAVIGATION]
U1227 AV CONTROL UNIT
U1227 AV CONTROL UNIT
DTC Logic
INFOID:0000000009174718
Diagnosis Procedure
INFOID:0000000009174719
1.
CHECK DVD PLAYBACK
Check the DVD playback operation of the AV control unit. Refer to Owner’s Manual for audio system operating
instructions.
Is the DVD playback function of the AV control unit operating normally?
YES
>> Refer to
GI-49, "Intermittent Incident"
.
NO
>> Replace AV control unit. Refer to
AV-611, "Removal and Installation"
CONSULT Display
DTC Detection Condition
Possible Cause
DVD COMM
[U1227]
AV control unit malfunction is detected.
An intermittent error causing disc player malfunc-
tion may be detected.
Replace AV control unit if malfunction occurs con-
stantly.
Refer to
AV-611, "Removal and Installation"
.
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