Nissan Maxima. Manual - part 136

AV-364

< DTC/CIRCUIT DIAGNOSIS >

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U1010 CONTROL UNIT (CAN)

U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000009471305

Initial diagnosis of AV control unit.

DTC Logic

INFOID:0000000009471306

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009471307

1.

REPLACE AV CONTROL UNIT

When DTC U1010 is detected, replace AV control unit. Refer to 

AV-481, "Removal and Installation"

.

>> Inspection End.

DTC

Display contents of CON-

SULT

Diagnostic item is detected when ...

Probable malfunction location

U1010

CONTROL UNIT (CAN)

CAN initial diagnosis malfunction is detected.

AV control unit.

AV

U1200 AV CONTROL UNIT

AV-365

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U1200 AV CONTROL UNIT

Description

INFOID:0000000009471308

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

AV-481, "Removal and Installation"

.

DTC Logic

INFOID:0000000009471309

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 means of communication. It operates each system according to com-
munication signals from the AV control unit.

• AV control unit includes audio function and vehicle information function.
• It is connected to ECM and combination meter via CAN communication to ob-

tain necessary information for the vehicle information function.

• It inputs the automatic brightness ON/OFF signals that are required for the dis-

play dimming control.

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

parking brake). 

DTC

Display contents of CONSULT

DTC Detection Condition

Action to take

U1200

Control Unit
FLASH- ROM
[U1200]

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

Replace AV control unit. Re-
fer to 

AV-481, "Removal and 

Installation"

.

AV-366

< DTC/CIRCUIT DIAGNOSIS >

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U1216 AV CONTROL UNIT

U1216 AV CONTROL UNIT

Description

INFOID:0000000009471310

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

AV-481, "Removal and Installation"

.

DTC Logic

INFOID:0000000009471311

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 means of communication. It operates each system according to com-
munication signals from the AV control unit.

• AV control unit includes audio function and vehicle information function.
• It is connected to ECM and combination meter via CAN communication to ob-

tain necessary information for the vehicle information function.

• It inputs the automatic brightness ON/OFF signals that are required for the dis-

play dimming control.

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

parking brake). 

DTC

Display contents of CONSULT

DTC Detection Condition

Action to take

U1216

CAN CONT
[U1216]

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

Replace AV control unit. 
Refer to 

AV-481, "Remov-

al and Installation"

.

AV

U1218 AV CONTROL UNIT

AV-367

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U1218 AV CONTROL UNIT

DTC Logic

INFOID:0000000009471312

DTC

Display contents of 

CONSULT

DTC detection condition

Possible malfunction factor

U1218

HDD CONN
[U1218]

AV control unit malfunction is detected.

• If the hard disk drive (HDD) is func-

tioning normally, there is a possibil-
ity of a temporary malfunction.

• Replace the AV control unit if the 

malfunction occurs constantly. Re-
fer to 

AV-481, "Removal and Instal-

lation"

.