Nissan Pathfinder (2008 year). Manual — part 60

AV-320

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1219 AV CONTROL UNIT

U1219 AV CONTROL UNIT

Description

INFOID:0000000001450576

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

AV-423, "Removal and Installation"

.

DTC Logic

INFOID:0000000001450577

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-

423, "Removal and Installation"

AV

U1220 AV CONTROL UNIT

AV-321

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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U1220 AV CONTROL UNIT

Description

INFOID:0000000001450591

Refer to

AV-282, "System Description"

.

DTC Logic

INFOID:0000000001450592

DTC DETECTION LOGIC

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-423, "Removal and Instal-

lation"

.

AV-322

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U121A AV CONTROL UNIT

U121A AV CONTROL UNIT

Description

INFOID:0000000001450578

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

AV-423, "Removal and Installation"

.

DTC Logic

INFOID:0000000001450579

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-

423, "Removal and Installation"

AV

U121B AV CONTROL UNIT

AV-323

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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U121B AV CONTROL UNIT

Description

INFOID:0000000001450580

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

AV-423, "Removal and Installation"

.

DTC Logic

INFOID:0000000001450581

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-

423, "Removal and Installation"

AV-324

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U121C AV CONTROL UNIT

U121C AV CONTROL UNIT

Description

INFOID:0000000001450582

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

AV-423, "Removal and Installation"

.

DTC Logic

INFOID:0000000001450583

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-

423, "Removal and Installation"

AV

U121D AV CONTROL UNIT

AV-325

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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U121D AV CONTROL UNIT

Description

INFOID:0000000001450584

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

AV-423, "Removal and Installation"

.

DTC Logic

INFOID:0000000001450585

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

U121D

DSP CONN
[U121D]

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

Replace AV control unit. Refer to

AV-

423, "Removal and Installation"

AV-326

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U121E AV CONTROL UNIT

U121E AV CONTROL UNIT

Description

INFOID:0000000001450586

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

AV-423, "Removal and Installation"

.

DTC Logic

INFOID:0000000001450587

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

U121E

DSP COMM
[U121E]

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

Replace AV control unit. Refer to

AV-

423, "Removal and Installation"

AV

U121F AV CONTROL UNIT

AV-327

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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U121F AV CONTROL UNIT

Description

INFOID:0000000001450588

DTC Logic

INFOID:0000000001450589

Diagnosis Procedure

INFOID:0000000001450590

1.

CHECK AV CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT

Check audio control unit power supply and ground circuit. Refer to

AV-336, "AV CONTROL UNIT : Diagnosis

Procedure"

.

Is inspection result OK?

YES

>> INSPECTION END

NO

>> Repair malfunctioning parts.

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

U121F

INTERNAL COMM
[U121F]

Internal malfunction of AV control unit (internal communi-
cation error) is detected.

AV control unit power supply and
ground circuit