Infiniti EX35. Manual - part 217

AV

AV CONTROL UNIT

AV-649

< ECU DIAGNOSIS >

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Fail-Safe

INFOID:0000000003160742

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. 

FAIL-SAFE CONDITIONS

• When the ambiance temperature is 

−

20

°

C or lower, or when it is 70

°

C or higher

• when HDD is malfunctioning

JCNWM0813GB

AV-650

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AV CONTROL UNIT

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.
•  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.)

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

AV CONTROL UNIT

AV-651

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DTC Index

INFOID:0000000003160743

Self-diagnosis results display item

DTC

Display item

Refer to

U1000

CAN COMM CIRCUIT [U1000]

AV-508, "Diagnosis Procedure"

U1010

CONTROL UNIT (CAN) [U1010]

AV-509, "Diagnosis Procedure"

U1310

CONTROL UNIT (AV) [U1310]

AV-510, "DTC Logic"

U1200

Control Unit FLASH-ROM [U1200]

AV-511, "DTC Logic"

U1201

Gyro NO CONN [U1201]

AV-512, "DTC Logic"

U1216

CAN CONT [U1216]

AV-513, "DTC Logic"

U1217

BLUETOOTH CONN [U1217]

AV-514, "DTC Logic"

U1218

HDD CONN [U1218]

AV-515, "DTC Logic"

U1219

HDD READ [U1219]

AV-516, "DTC Logic"

U1220

XM SERIAL COMM [U1220]

AV-517, "DTC Logic"

U121A

HDD WRITE [U121A]

AV-518, "DTC Logic"

U121B

HDD COMM [U121B]

AV-519, "DTC Logic"

U121C

HDD ACCESS [U121C]

AV-520, "DTC Logic"

U121D

DSP CONN [U121D]

AV-521, "DTC Logic"

U121E

DSP COMM [U121E]

AV-522, "DTC Logic"

U121F

INTERNAL COMM [U121F]

AV-523, "Diagnosis Procedure"

U1204

GPS COMM [U1204]

AV-524, "Diagnosis Procedure"

U1205

GPS ROM [U1205]

AV-525, "Diagnosis Procedure"

U1206

GPS RAM [U1206]

AV-526, "Diagnosis Procedure"

U1207

GPS RTC [U1207]

AV-527, "Diagnosis Procedure"

U1243

FRONT DISP CONN [U1243]

AV-528, "Diagnosis Procedure"

U1244

GPS ANTENNA CONN [U1244]

AV-530, "Diagnosis Procedure"

U1250

CAMERA CONT. CONN [U1250]

AV-531, "Diagnosis Procedure"

U1258

XM ANTENNA CONN [U1258]

AV-532, "Diagnosis Procedure"

U1300
U121F

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

Without rear view monitor and around 
view monitor

•

AV-533, "WITHOUT REAR VIEW MONI-
TOR AND AROUND VIEW MONITOR : 
Description"

With rear view monitor

•

AV-533, "WITH REAR VIEW MONITOR : 
Description"

With around view monitor

•

AV-534, "WITH AROUND VIEW MONI-
TOR : Description"

U1300
U1240

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

Without rear view monitor and around 
view monitor

•

AV-533, "WITHOUT REAR VIEW MONI-
TOR AND AROUND VIEW MONITOR : 
Description"

With rear view monitor

•

AV-533, "WITH REAR VIEW MONITOR : 
Description"

With around view monitor

•

AV-534, "WITH AROUND VIEW MONI-
TOR : Description"

AV-652

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AV CONTROL UNIT

U1300
U1254

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

Without rear view monitor and around 
view monitor

•

AV-533, "WITHOUT REAR VIEW MONI-
TOR AND AROUND VIEW MONITOR : 
Description"

With rear view monitor

•

AV-533, "WITH REAR VIEW MONITOR : 
Description"

With around view monitor

•

AV-534, "WITH AROUND VIEW MONI-
TOR : Description"

U1300

U125B

• AV COMM CIRCUIT [U1300]
• AROUND CAMERA CONN [U125B]

AV-534, "WITH AROUND VIEW MONITOR 

: Description"

U1300

U125C

• AV COMM CIRCUIT [U1300]
• SONAR CONN [U125C]

AV-534, "WITH AROUND VIEW MONITOR 

: Description"

U1300
U1240
U1254

• AV COMM CIRCUIT [U1300]
• SWITCH CONN [U1240]
• IPod CONN [U1254]

Without rear view monitor and around 
view monitor

•

AV-533, "WITHOUT REAR VIEW MONI-
TOR AND AROUND VIEW MONITOR : 
Description"

With rear view monitor

•

AV-533, "WITH REAR VIEW MONITOR : 
Description"

With around view monitor

•

AV-534, "WITH AROUND VIEW MONI-
TOR : Description"

U1300
U1252
U1254

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

AV-533, "WITH REAR VIEW MONITOR : 

Description"

U1300
U1240
U1252
U1254

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

AV-533, "WITH REAR VIEW MONITOR : 

Description"

U1300
U1254

U125B

• AV COMM CIRCUIT [U1300]
• IPod CONN [U1254]
• AROUND CAMERA CONN [U125B]

AV-534, "WITH AROUND VIEW MONITOR 

: Description"

U1300
U1240
U1254

U125B

• AV COMM CIRCUIT [U1300]
• SWITCH CONN [U1240]
• IPod CONN [U1254]
• AROUND CAMERA CONN [U125B]

AV-534, "WITH AROUND VIEW MONITOR 

: Description"

U1300
U121F
U1240
U1254

• AV COMM CIRCUIT [U1300]
• INTERNAL COMM [U121F]
• SWITCH CONN [U1240]
• IPod CONN [U1254]

AV-533, "WITHOUT REAR VIEW MONI-

TOR AND AROUND VIEW MONITOR : 

Description"

U1300
U121F
U1240
U1252
U1254

• AV COMM CIRCUIT [U1300]
• INTERNAL COMM [U121F]
• SWITCH CONN [U1240]
• REAR CAMERA LAN CONN [U1252]
• IPod CONN [U1254]

AV-533, "WITH REAR VIEW MONITOR : 

Description"

U1300
U121F
U1240
U1254

U125B

• AV COMM CIRCUIT [U1300]
• INTERNAL COMM [U121F]
• SWITCH CONN [U1240]
• IPod CONN [U1254]
• AROUND CAMERA CONN [U125B]

AV-534, "WITH AROUND VIEW MONITOR 

: Description"

DTC

Display item

Refer to