Infiniti FX35, FX50 (S51). Manual - part 122

AV

U1217 AV CONTROL UNIT

AV-261

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION (SINGLE MONITOR)]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

U1217 AV CONTROL UNIT

DTC Logic

INFOID:0000000005475651

DTC

Display contents of 

CONSULT-III

DTC detection condition

Possible malfunction factor

U1217

BLUETOOTH MODULE
[U1217]

AV control unit malfunction is detected.

Replace the AV control unit if the mal-
function occurs constantly.

AV-262

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION (SINGLE MONITOR)]

U1218 AV CONTROL UNIT

U1218 AV CONTROL UNIT

DTC Logic

INFOID:0000000005475653

Diagnosis Procedure

INFOID:0000000005475654

1.

CHECK MUSIC BOX FUNCTION

Is music box function normal?

YES

>> Malfunction may be detected transitory.

NO

>> Replace AV control unit. Refer to 

AV-333, "Exploded View"

.

DTC

Display contents of 

CONSULT-III

DTC detection condition

Possible malfunction factor

U1218

HDD CONN
[U1218]

AV control unit malfunction is detected.

• If the music box function has no 

malfunctions, then there is a possi-
bility of the detection of a temporary 
malfunction.

• Replace the AV control unit if the 

malfunction occurs constantly.

AV

U1219 AV CONTROL UNIT

AV-263

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION (SINGLE MONITOR)]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

U1219 AV CONTROL UNIT

DTC Logic

INFOID:0000000005475656

Diagnosis Procedure

INFOID:0000000005475657

1.

CHECK MUSIC BOX FUNCTION

Is music box function normal?

YES

>> Malfunction may be detected transitory.

NO

>> Replace AV control unit. Refer to 

AV-333, "Exploded View"

.

DTC

Display contents of 

CONSULT-III

DTC detection condition

Possible malfunction factor

U1219

HDD READ
[U1219]

AV control unit malfunction is detected.

• If the music box function has no 

malfunctions, then there is a possi-
bility of the detection of a temporary 
malfunction.

• Replace the AV control unit if the 

malfunction occurs constantly.

AV-264

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION (SINGLE MONITOR)]

U121A AV CONTROL UNIT

U121A AV CONTROL UNIT

DTC Logic

INFOID:0000000005475659

Diagnosis Procedure

INFOID:0000000005475660

1.

CHECK MUSIC BOX FUNCTION

Is music box function normal?

YES

>> Malfunction may be detected transitory.

NO

>> Replace AV control unit. Refer to 

AV-333, "Exploded View"

.

DTC

Display contents of 

CONSULT-III

DTC detection condition

Possible malfunction factor

U121A

HDD WRITE
[U121A]

AV control unit malfunction is detected.

• If the music box function has no 

malfunctions, then there is a possi-
bility of the detection of a temporary 
malfunction.

• Replace the AV control unit if the 

malfunction occurs constantly.