Nissan Pathfinder (2009 year). Manual — part 66

AV-340

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1000 CAN COMM CIRCUIT

COMPONENT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000003939176

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring. Each
control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to

LAN-13, "How to Use CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000003939177

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000003939178

1.

PERFORM SELF DIAGNOSTIC

1.

Turn ignition switch ON and wait for 2 seconds or more.

2.

Check “Self Diagnostic Result” of “MULTI AV”.

Is “CAN COMM CIRCUIT” displayed?

YES

>> Refer to “LAN system”. Refer to

LAN-14, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to GI section. Refer to

GI-49, "Intermittent Incident"

.

DTC

Display contents of CON-

SULT-III

Diagnostic item is detected when ...

Probable malfunction location

U1000

CAN COMM CIRCUIT

When AV control unit is not transmitting or re-
ceiving CAN communication signal for 2 sec-
onds or more.

CAN communication system

2009 Pathfinder

AV

U1010 CONTROL UNIT (CAN)

AV-341

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000003939179

Initial diagnosis of AV control unit.

DTC Logic

INFOID:0000000003939180

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000003939181

1.

REPLACE AV CONTROL UNIT

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

AV-287, "Removal and Installation"

.

>> 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

2009 Pathfinder

AV-342

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1200 AV CONTROL UNIT

U1200 AV CONTROL UNIT

Description

INFOID:0000000003939182

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

AV-287, "Removal and Installation"

.

DTC Logic

INFOID:0000000003939183

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

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-287, "Removal and

Installation"

2009 Pathfinder

AV

U1201 AV CONTROL UNIT

AV-343

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

U1201 AV CONTROL UNIT

Description

INFOID:0000000004432043

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

AV-287, "Removal and Installation"

.

DTC Logic

INFOID:0000000003939185

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

U1201

GYRO NO CONN
[U1201]

An internal malfunction is detected in AV control unit (gy-
rocompass disconnection).

Replace AV control unit. Refer
to

AV-287, "Removal and Instal-

lation"

.

2009 Pathfinder

AV-344

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1204 GPS COMM

U1204 GPS COMM

Description

INFOID:0000000004432047

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

AV-287, "Removal and Installation"

.

DTC Logic

INFOID:0000000003939187

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

U1204

GPS COMM
[U1204]

An internal malfunction is detected in AV control unit (GPS
malfunction).

Replace AV control unit. Refer
to

AV-455, "Removal and Instal-

lation"

.

2009 Pathfinder

AV

U1205 GPS ROM

AV-345

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

U1205 GPS ROM

Description

INFOID:0000000004432048

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

AV-287, "Removal and Installation"

.

DTC Logic

INFOID:0000000003939189

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

U1205

GPS ROM
[U1205]

An internal malfunction is detected in AV control unit (GPS
malfunction).

Replace AV control unit. Refer
to

AV-455, "Removal and Instal-

lation"

.

2009 Pathfinder

AV-346

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1206 GPS RAM

U1206 GPS RAM

Description

INFOID:0000000004432049

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

AV-287, "Removal and Installation"

.

DTC Logic

INFOID:0000000003939191

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

U1206

GPS RAM
[U1206]

An internal malfunction is detected in AV control unit (GPS
malfunction).

Replace AV control unit. Refer
to

AV-455, "Removal and Instal-

lation"

.

2009 Pathfinder

AV

U1207 GPS RTC

AV-347

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

U1207 GPS RTC

Description

INFOID:0000000004432050

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

AV-287, "Removal and Installation"

.

DTC Logic

INFOID:0000000003939193

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

U1207

GPS RTC
[U1207]

An internal malfunction is detected in AV control unit (GPS
malfunction).

Replace AV control unit. Refer
to

AV-455, "Removal and Instal-

lation"

.

2009 Pathfinder