Nissan Pathfinder (2009 year). Manual - part 67

AV-348

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1216 AV CONTROL UNIT

U1216 AV CONTROL UNIT

Description

INFOID:0000000003939194

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

AV-455, "Removal and Installation"

.

DTC Logic

INFOID:0000000003939195

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-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. 
Refer to 

AV-455, "Remov-

al and Installation"

.

2009 Pathfinder

AV

U1217 AV CONTROL UNIT

AV-349

< COMPONENT DIAGNOSIS >

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U1217 AV CONTROL UNIT

Description

INFOID:0000000004432051

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

AV-287, "Removal and Installation"

.

DTC Logic

INFOID:0000000003939197

DTC DETECTION LOGIC

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

CONSULT-III display

Detection condition

Action to take

U1217

BLUETOOTH CONN
[U1217]

An internal malfunction is detected in AV control unit (Blue-
tooth module connection malfunction).

Replace AV control unit. Refer 
to 

AV-455, "Removal and Instal-

lation"

.

2009 Pathfinder

AV-350

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1218 AV CONTROL UNIT

U1218 AV CONTROL UNIT

Description

INFOID:0000000003939198

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

AV-455, "Removal and Installation"

.

DTC Logic

INFOID:0000000003939199

Part name

Description

AV CONTROL UNIT

• Integrates HDD (hard disk drive) allowing map data and music data to be 

stored.

• 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.

• The AV control unit includes the audio, hands-free phone, voice control, navi-

gation, and vehicle information functions.

• 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-III

DTC Detection Condition

Action to take

U1218

HDD-CONN
[U1218]

Internal malfunction of AV control unit (HDD connection 
malfunction) is detected.

Replace AV control unit. Refer to 

AV-

455, "Removal and Installation"

.

2009 Pathfinder

AV

U1219 AV CONTROL UNIT

AV-351

< COMPONENT DIAGNOSIS >

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U1219 AV CONTROL UNIT

Description

INFOID:0000000003939200

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

AV-455, "Removal and Installation"

.

DTC Logic

INFOID:0000000003939201

Part name

Description

AV CONTROL UNIT

• Integrates HDD (hard disk drive) allowing map data and music data to be 

stored.

• 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.

• The AV control unit includes the audio, hands-free phone, voice control, navi-

gation, and vehicle information functions.

• 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-III

DTC Detection Condition

Action to take

U1219

HDD-READ
[U1219]

Internal malfunction of AV control unit (HDD read malfunc-
tion) is detected.

Replace AV control unit. Refer to 

AV-

455, "Removal and Installation"

.

2009 Pathfinder

AV-352

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1220 AV CONTROL UNIT

U1220 AV CONTROL UNIT

Description

INFOID:0000000004432052

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

AV-287, "Removal and Installation"

.

DTC Logic

INFOID:0000000003939203

DTC DETECTION LOGIC

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

CONSULT-III display

Detection condition

Action to take

U1220

XM SERIAL COMM
[U1220]

An internal malfunction is detected in AV control unit (sat-
ellite radio tuner communication malfunction).

Replace AV control unit. Refer 
to 

AV-455, "Removal and Instal-

lation"

.

2009 Pathfinder

AV

U121A AV CONTROL UNIT

AV-353

< COMPONENT DIAGNOSIS >

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U121A AV CONTROL UNIT

Description

INFOID:0000000003939204

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

AV-455, "Removal and Installation"

.

DTC Logic

INFOID:0000000003939205

Part name

Description

AV CONTROL UNIT

• Integrates HDD (hard disk drive) allowing map data and music data to be 

stored.

• 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.

• The AV control unit includes the audio, hands-free phone, voice control, navi-

gation, and vehicle information functions.

• 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-III

DTC Detection Condition

Action to take

U121A

HDD-WRITE
[U121A]

Internal malfunction of AV control unit (HDD write mal-
function) is detected.

Replace AV control unit. Refer to 

AV-

455, "Removal and Installation"

.

2009 Pathfinder

AV-354

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U121B AV CONTROL UNIT

U121B AV CONTROL UNIT

Description

INFOID:0000000003939206

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

AV-455, "Removal and Installation"

.

DTC Logic

INFOID:0000000003939207

Part name

Description

AV CONTROL UNIT

• Integrates HDD (hard disk drive) allowing map data and music data to be 

stored.

• 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.

• The AV control unit includes the audio, hands-free phone, voice control, navi-

gation, and vehicle information functions.

• 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-III

DTC Detection Condition

Action to take

U121B

HDD-COMM
[U121B]

Internal malfunction of AV control unit (HDD communica-
tion error) is detected.

Replace AV control unit. Refer to 

AV-

455, "Removal and Installation"

.

2009 Pathfinder

AV

U121C AV CONTROL UNIT

AV-355

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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U121C AV CONTROL UNIT

Description

INFOID:0000000003939208

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

AV-455, "Removal and Installation"

.

DTC Logic

INFOID:0000000003939209

Part name

Description

AV CONTROL UNIT

• Integrates HDD (hard disk drive) allowing map data and music data to be 

stored.

• 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.

• The AV control unit includes the audio, hands-free phone, voice control, navi-

gation, and vehicle information functions.

• 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-III

DTC Detection Condition

Action to take

U121C

HDD-ACCESS
[U121C]

Internal malfunction of AV control unit (HDD access error) 
is detected.

Replace AV control unit. Refer to 

AV-

455, "Removal and Installation"

.

2009 Pathfinder