Nissan Maxima. Manual - part 98

AV-212

< DTC/CIRCUIT DIAGNOSIS >

[COLOR DISPLAY - W/O BOSE]

U121A AV CONTROL UNIT

U121A AV CONTROL UNIT

DTC Logic

INFOID:0000000010064845

DTC

Display contents of 

CONSULT

DTC detection condition

Possible malfunction factor

U121A

HDD WRITE
[U121A]

AV control unit malfunction is detected.

• If the hard disk drive (HDD) is func-

tioning normally, there is a possibil-
ity of a temporary malfunction.

• Replace the AV control unit if the 

malfunction occurs constantly. Re-
fer to 

AV-311, "Removal and Instal-

lation"

.

AV

U121B AV CONTROL UNIT

AV-213

< DTC/CIRCUIT DIAGNOSIS >

[COLOR DISPLAY - W/O BOSE]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

U121B AV CONTROL UNIT

DTC Logic

INFOID:0000000010064846

DTC

Display contents of 

CONSULT

DTC detection condition

Possible malfunction factor

U121B

HDD COMM
[U121B]

AV control unit malfunction is detected.

• If the hard disk drive (HDD) is func-

tioning normally, there is a possibil-
ity of a temporary malfunction.

• Replace the AV control unit if the 

malfunction occurs constantly. Re-
fer to 

AV-311, "Removal and Instal-

lation"

.

AV-214

< DTC/CIRCUIT DIAGNOSIS >

[COLOR DISPLAY - W/O BOSE]

U121C AV CONTROL UNIT

U121C AV CONTROL UNIT

DTC Logic

INFOID:0000000010064847

DTC

Display contents of 

CONSULT

DTC detection condition

Possible malfunction factor

U121C

HDD ACCESS
[U121C]

AV control unit malfunction is detected.

• If the hard disk drive (HDD) is func-

tioning normally, there is a possibil-
ity of a temporary malfunction.

• Replace the AV control unit if the 

malfunction occurs constantly. Re-
fer to 

AV-311, "Removal and Instal-

lation"

.

AV

U121D AV CONTROL UNIT

AV-215

< DTC/CIRCUIT DIAGNOSIS >

[COLOR DISPLAY - W/O BOSE]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

U121D AV CONTROL UNIT

DTC Logic

INFOID:0000000010064848

Diagnosis Procedure

INFOID:0000000010064849

1.

CHECK PLAYBACK OF A DISK (CD)

Can a disk (CD) be played?

YES

>> Malfunction may be detected intermittently.

NO

>> Replace AV control unit. Refer to 

AV-311, "Removal and Installation"

.

DTC

Display contents of 

CONSULT

DTC detection condition

Possible malfunction factor

U121D

DSP CONN
[U121D]

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. Re-
fer to 

AV-311, "Removal and Instal-

lation"

.