Infiniti EX35. Manual - part 65

AV

U1010 CONTROL UNIT (CAN)

AV-41

< COMPONENT DIAGNOSIS >

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U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000003508376

Initial diagnosis of AV control unit.

DTC Logic

INFOID:0000000003508377

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000003508378

1.

REPLACE AV CONTROL UNIT

When DTC U1010 is detected, replace AV control unit.

>> INSPECTION END

DTC

Display contents of CON-

SULT-III

Diagnostic item is detected when ...

Probable malfunction location

U1010

CONTROL UNIT (CAN)

CAN initial diagnosis malfunction is detected.

AV control unit.

AV-42

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U1310 AV CONTROL UNIT

U1310 AV CONTROL UNIT

Description

INFOID:0000000003508379

Replace the AV control unit if this DTC is displayed. Refer to 

AV-156, "Exploded View"

.

DTC Logic

INFOID:0000000003508380

Part name

Description

AV CONTROL UNIT

• It is the master unit of the MULTI AV system, and it is connected to each control 

unit by communication. It operates each system according to communication 
signals from the AV control unit.

• AV control unit includes audio function and vehicle information function.
• It is connected to ECM and unified meter and A/C amp via CAN communica-

tion to obtain necessary information for the vehicle information function.

• It is connected to BCM via CAN communication transmitting/receiving for the 

vehicle settings function.

• It inputs the illumination signals that are required for the display dimming con-

trol.

• It inputs the signals for driving status recognition (vehicle speed, reverse and 

parking brake). 

• Auxiliary image signal is input from the auxiliary input jacks.

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Action to take

U1310

CONTROL UNIT (AV)
[U1310]

An initial diagnosis error is detected in AV communication 
circuit.

Replace AV control unit.

AV

U1200 AV CONTROL UNIT

AV-43

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U1200 AV CONTROL UNIT

Description

INFOID:0000000003508381

Replace the AV control unit if this DTC is displayed. Refer to 

AV-156, "Exploded View"

.

DTC Logic

INFOID:0000000003508382

Part name

Description

AV CONTROL UNIT

• It is the master unit of the MULTI AV system, and it is connected to each control 

unit by communication. It operates each system according to communication 
signals from the AV control unit.

• AV control unit includes audio function and vehicle information function.
• It is connected to ECM and unified meter and A/C amp via CAN communica-

tion to obtain necessary information for the vehicle information function.

• It is connected to BCM via CAN communication transmitting/receiving for the 

vehicle settings function.

• It inputs the illumination signals that are required for the display dimming con-

trol.

• It inputs the signals for driving status recognition (vehicle speed, reverse and 

parking brake). 

• Auxiliary image signal is input from the auxiliary input jacks.

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Action to take

U1200

Cont Unit
FLASH- ROM
[U1200]

An internal malfunction is detected in AV control unit 
(FLASH-ROM).

Replace AV control unit.

AV-44

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U1216 AV CONTROL UNIT

U1216 AV CONTROL UNIT

Description

INFOID:0000000003508383

Replace the AV control unit if this DTC is displayed. Refer to 

AV-156, "Exploded View"

.

DTC Logic

INFOID:0000000003508384

Part name

Description

AV CONTROL UNIT

• It is the master unit of the MULTI AV system, and it is connected to each control 

unit by communication. It operates each system according to communication 
signals from the AV control unit.

• AV control unit includes audio function and vehicle information function.
• It is connected to ECM and unified meter and A/C amp via CAN communica-

tion to obtain necessary information for the vehicle information function.

• It is connected to BCM via CAN communication transmitting/receiving for the 

vehicle settings function.

• It inputs the illumination signals that are required for the display dimming con-

trol.

• It inputs the signals for driving status recognition (vehicle speed, reverse and 

parking brake). 

• Auxiliary image signal is input from the auxiliary input jacks.

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Action to take

U1216

CAN CONT
[U1216]

Internal malfunction of AV control unit (CAN controller) is 
detected.

Replace AV control unit.