Nissan Quest E52. Manual - part 171

AV

U1227 AV CONTROL UNIT

AV-563

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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U1227 AV CONTROL UNIT

DTC Logic

INFOID:0000000009652346

Diagnosis Procedure

INFOID:0000000009652347

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 

AV-610, "Removal and Installation"

.

DTC

Display contents of 

CONSULT

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.
Refer to 

AV-610, "Removal and In-

stallation"

.

AV-564

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1228 AV CONTROL UNIT

U1228 AV CONTROL UNIT

DTC Logic

INFOID:0000000009652348

DTC DETECTION LOGIC

DTC

Display contents of CON-

SULT

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.
Refer to 

AV-610, "Removal and Installation"

.

AV

U1229 AV CONTROL UNIT

AV-565

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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U1229 AV CONTROL UNIT

DTC Logic

INFOID:0000000009652349

DTC DETECTION LOGIC

DTC

Display contents of CON-

SULT

DTC detection condition

Possible malfunction factor

U1229

iPod CERTIFICATION 
[U1229]

AV control unit malfunction is detected.

Replace the AV control unit if the malfunction 
occurs constantly.
Refer to 

AV-610, "Removal and Installation"

.

AV-566

< DTC/CIRCUIT DIAGNOSIS >

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U122A AV CONTROL UNIT

U122A AV CONTROL UNIT

DTC Logic

INFOID:0000000009652350

Diagnosis Procedure

INFOID:0000000009652351

1.

PERFORM THE SELF-DIAGNOSIS

When U122A is detected, write configuration data with CONSULT.

>> Write configuration data with CONSULT. Refer to 

AV-526, "CONFIGURATION (AV CONTROL

UNIT) : Work Procedure"

.

DTC

Display contents of 

CONSULT

DTC detection condition

Action to take

U122A

CONFIG UNFINISH 
[U122A]

The writing of configuration data is incomplete.

Write configuration data with CON-
SULT.