Infiniti QX56 (Z62). Manual - part 71

AV-138

< DTC/CIRCUIT DIAGNOSIS >

U1228 AV CONTROL UNIT

U1228 AV CONTROL UNIT

DTC Logic

INFOID:0000000006216286

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.
Refer to 

AV-212, "Removal and Installation"

.

AV

U1229 AV CONTROL UNIT

AV-139

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

U1229 AV CONTROL UNIT

DTC Logic

INFOID:0000000006216287

DTC DETECTION LOGIC

DTC

Display contents of CON-

SULT-III

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-212, "Removal and Installation"

.

AV-140

< DTC/CIRCUIT DIAGNOSIS >

U122A AV CONTROL UNIT

U122A AV CONTROL UNIT

DTC Logic

INFOID:0000000006216288

Diagnosis Procedure

INFOID:0000000006216289

1.

PERFORM THE SELF-DIAGNOSIS

When U122A is detected, write configuration data with CONSULT-III.

>> Write configuration data with CONSULT-III. Refer to 

AV-39, "CONSULT-III Function"

.

DTC

Display contents of 

CONSULT-III

DTC detection condition

Action to take

U122A

CONFIG UNFINISH 
[U122A]

The writing of configuration data is incomplete.

Write configuration data with CON-
SULT-III.

AV

U122E AV CONTROL UNIT

AV-141

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

U122E AV CONTROL UNIT

DTC Logic

INFOID:0000000006216290

DTC DETECTION LOGIC

DTC

Display contents of CON-

SULT-III

DTC detection condition

Possible malfunction factor

U122E

Built-in AUDIO CONN 
[U122E]

AV control unit malfunction is detected.

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

AV-212, "Removal and Installation"

.