Infiniti G37 Coupe. Manual - part 183

AV

AV CONTROL UNIT

AV-485

< ECU DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

JCNWA0497GB

AV-486

< ECU DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

AV CONTROL UNIT

NOTE:
The name MULTIFUNCTION SWITCH indicates the integration of PRESET SWITCH and MULTIFUNCTION
SWITCH virtually.

Fail-Safe

INFOID:0000000001558908

When the ambiance temperature becomes extremely low or extremely high, or when HDD is malfunctioning,
AV control unit displays the message and limits the AV control unit function. 

JCNWA0498GB

AV

AV CONTROL UNIT

AV-487

< ECU DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

FAIL-SAFE CONDITIONS

• When the ambiance temperature is 

−

20

°

C (

−

4

°

F) or lower, or when it is 70

°

C (158

°

F) or higher

• when HDD is malfunctioning

Display

The messages displayed on fail-safe conditions are as shown below:

DESCRIPTION OF CONTROLS

Ability Operation Mode 

There is an ability operation mode for Fail-safes due to low or high ambiance temperature.
If HDD data can be read, fail-safe is shown, then normal displays are displayed only for functions which can be
operated.

RELEASE CONDITIONS OF FAIL-SAFE 

Fail-safe is released on following conditions and normal mode is restored.

When the temperature of HDD is low or high

If the ambient temperature becomes out of fail-safe condition range, normal mode is restored.

When HDD is malfunctioning

If the malfunction disappears, normal mode is restored.
NOTE:
•  If fail-safe mode due to HDD malfunction is seen continuously, replace AV control unit.

JPNIA0414GB

Fail-safe mode

Display (display of the fail-safe condition)

When HDD temperature is low

HDD system is experiencing problems due to extreme low temperature.
Normal operation will resume when temperature rises.

When HDD temperature is high

HDD system is experiencing problems due to extreme high temperature.
Normal operation will resume when temperature drops.

When HDD is malfunctioning

HDD system is not functioning.
Please contact your dealer for assistance.

Function

When Fail-safe Function is activated 

Air conditioner

Operation

Only multifunction switch (preset switch) can be operated.

Display

• LED of multifunction switch (preset switch) illuminates.
• Aimed temperature, blow angle, and flow rate are displayed in simplified mode. 

Audio

Operation

Only ON/OFF and volume control operations by multifunction switch (preset switch) are possible.

Display

No display (“Fail-safe mode” is displayed)

Camera

Operation

Image tone cannot be controlled.

Display

Cannot be superimposed. (warning display, tone control display)

Hands-free phone

Operation

Cannot be operated.

Navigation

Operation

Cannot be operated.

Self diagnosis

The display in simplified mode of fail-safe condition

CONSULT-III diagnosis

Cannot be operated.

AV-488

< ECU DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

AV CONTROL UNIT

•  If fail-safe mode due to HDD malfunction is seen temporarily, check the “Error History” of Confirmation/

Adjustment mode. If this is normal, then continue the normal operation, observing the function. (It might be a
temporary malfunction of HDD.)

DTC Index

INFOID:0000000001558909

SELF-DIAGNOSIS RESULTS DISPLAY ITEM

DTC

Display item

Refer to

U1000

CAN COMM CIRCUIT [U1000]

AV-407, "Diagnosis Procedure"

U1010

CONTROL UNIT (CAN) [1010]

AV-408, "Diagnosis Procedure"

U1310

CONTROL UNIT (AV) [U1310]

AV-409, "DTC Logic"

U1200

Control Unit FLASH-ROM [1200]

AV-410, "DTC Logic"

U1201

Gyro NO CONN [1201]

AV-411, "DTC Logic"

U1216

CAN CONT [U1216]

AV-412, "DTC Logic"

U1217

BLUETOOTH CONN [U1217]

AV-413, "DTC Logic"

U1218

HDD CONN [U1218]

AV-414, "DTC Logic"

U1219

HDD READ [U1219]

AV-415, "DTC Logic"

U1220

XM SERIAL COMM [U1220]

AV-416, "DTC Logic"

U121A

HDD WRITE [U121A]

AV-417, "DTC Logic"

U121B

HDD COMM [U121B]

AV-418, "DTC Logic"

U121C

HDD ACCESS [U121C]

AV-419, "DTC Logic"

U121D

DSP CONN [U121D]

AV-420, "DTC Logic"

U121E

DSP COMM [U121E]

AV-421, "DTC Logic"

U121F

INTERNAL COMM [U121F]

AV-422, "DTC Logic"

U1204

GPS COMM [U1204]

AV-423, "DTC Logic"

U1205

GPS ROM [U1205]

AV-424, "DTC Logic"

U1206

GPS RAM [U1206]

AV-425, "DTC Logic"

U1207

GPS RTC [U1207]

AV-426, "DTC Logic"

U1243

FRONT DISP CONN [U1243]

AV-427, "DTC Logic"

U1244

GPS ANTENNA CONN [U1244]

AV-429, "DTC Logic"

U1250

CAMERA CONT. CONN [U1250]

AV-430, "DTC Logic"

U1258

XM ANTENNA CONN [U1258]

AV-431, "DTC Logic"

U1300
U121F

• AV COMM CIRCUIT [U1300]
• INTERNAL COMM [U121F]

AV-432, "Description"

U1300
U1240

• AV COMM CIRCUIT [U1300]
• SWITCH CONN [U1240]

AV-432, "Description"

U1300
U1252

• AV COMM CIRCUIT [U1300]
• REAR CAMERA LAN CONN [U1252]

AV-432, "Description"

U1300
U1254

• AV COMM CIRCUIT [U1300]
• IPOD CONN [U1254]

AV-432, "Description"

U1300
U1252
U1254

• AV COMM CIRCUIT [U1300]
• REAR CAMERA LAN CONN [U1252]
• IPOD CONN [U1254]

AV-432, "Description"

U1300
U1240
U1252
U1254

• AV COMM CIRCUIT [U1300]
• SWITCH CONN [U1240]
• REAR CAMERA LAN CONN [U1252]
• IPOD CONN [U1254]

AV-432, "Description"