Nissan Pathfinder (2009 year). Manual - part 72

AV-388

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

FRONT TWEETER

1.

Connect AV control unit connector and BOSE speaker amp.
connector.

2.

Turn ignition switch ACC.

3.

Push “POWER” switch.

4.

Check the signal between AV control unit harness connector
M39 terminals with CONSULT-III or oscilloscope.

Are the audio signal voltage readings as specified?

YES

>> Replace BOSE speaker amp. Refer to 

AV-461,

"Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-455, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M39

2

3

Receive 
audio sig-
nal

11

12

AWNIA0032ZZ

SKIA0177E

2009 Pathfinder

AV

REAR DOOR SPEAKER

AV-389

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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REAR DOOR SPEAKER

Description

INFOID:0000000003939260

The AV control unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the
audio signals before sending them to the rear door speakers using the audio signal circuits.

Diagnosis Procedure

INFOID:0000000003939261

1.

HARNESS CHECK

1.

Disconnect BOSE speaker amp. connectors B75 and suspect
speaker connector.

2.

Check continuity between BOSE speaker amp. harness connec-
tors B75 (A) and  suspect speaker harness connector (B).

3.

Check continuity between BOSE speaker amp. harness connec-
tors B75 (A) and ground.

Are the continuity test results as specified?

YES

>> GO TO 2

NO

>> • Check connector housings for disconnected or loose terminals.

• Repair harness or connector.

2.

REAR DOOR SPEAKER SIGNAL CHECK

A

B

Continuity

Connector

Terminal

Connector

Terminal

B75

9

D207

1

Yes

10

2

11

D307

1

12

2

Connector

Terminal

-

Continuity

B75

9

Ground

No

10

11

12

ALNIA0533GB

2009 Pathfinder

AV-390

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

REAR DOOR SPEAKER

1.

Connect BOSE speaker amp. connectors and suspect speaker
connector.

2.

Turn ignition switch to ACC.

3.

Push “POWER” switch.

4.

Check the signal between BOSE speaker amp. harness connec-
tors B75 terminals with CONSULT-III or oscilloscope.

Are audio signal voltage readings as specified?

YES

>> Replace suspect speaker. Refer to 

AV-459, "Removal

and Installation"

.

NO

>> GO TO 3

3.

HARNESS CHECK

1.

Disconnect AV control unit connector M39 and BOSE speaker
amp. connector B75.

2.

Check continuity between AV control unit harness connector
M39 (A) and BOSE speaker amp. harness connector B75 (B).

3.

Check continuity between AV control unit harness connector
M39 (A) and ground.

Are the continuity test results as specified?

YES

>> GO TO 4

NO

>> • Check connector housings for disconnected or loose terminals.

• Repair harness or connector.

4.

REAR DOOR SPEAKER SIGNAL CHECK

Connector

Terminals

Condition

Reference

signal

(+)

(-)

B75

9

10

Receive 
audio sig-
nal

11

12

ALNIA0534GB

SKIA0177E

A

B 

Continuity

Connector

Terminal

Connector

Terminal

M39

4

B75

26

Yes

5

25

13

24

14

23

A

—

Continuity

Connector

Terminal

M39

4

Ground

No

5

13

14

ALNIA0551GB

2009 Pathfinder

AV

REAR DOOR SPEAKER

AV-391

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

C

D

E

F

G

H

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J

K

L

M

B

A

O

P

1.

Connect AV control unit connector M39 and BOSE speaker
amp. connector B75.

2.

Turn ignition switch to ACC.

3.

Push “POWER” switch.

4.

Check the signal between AV control unit harness connector
M39 terminals with CONSULT-III or oscilloscope.

Is the audio signal voltage reading as specified?

YES

>> Replace BOSE speaker amp. Refer to 

AV-461,

"Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-455, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M39

4

5

Receive 
audio sig-
nal

13

14

AWNIA0034ZZ

SKIA0177E

2009 Pathfinder

AV-392

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

REAR TWEETER

REAR TWEETER

Description

INFOID:0000000003939262

The AV control unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the
audio signals before sending them to the rear tweeters using the audio signal circuits.

Diagnosis Procedure

INFOID:0000000003939263

1.

HARNESS CHECK

1.

Disconnect BOSE speaker amp. connectors B75 and suspect
tweeter connector.

2.

Check continuity between BOSE speaker amp. harness connec-
tors B75 (A) and  suspect tweeter harness connector (B).

3.

Check continuity between BOSE speaker amp. harness connec-
tors B75 (A) and ground.

Are the continuity test results as specified?

YES

>> GO TO 2

NO

>> • Check connector housings for disconnected or loose terminals.

• Repair harness or connector.

2.

REAR TWEETER SIGNAL CHECK

A

B

Continuity

Connector

Terminal

Connector

Terminal

B75

9

D208

1

Yes

10

2

11

D308

1

12

2

Connector

Terminal

-

Continuity

B75

9

Ground

No

10

11

12

ALNIA0533GB

2009 Pathfinder

AV

REAR TWEETER

AV-393

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

C

D

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F

G

H

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J

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B

A

O

P

1.

Connect BOSE speaker amp. connectors and suspect tweeter
connector.

2.

Turn ignition switch to ACC.

3.

Push “POWER” switch.

4.

Check the signal between BOSE speaker amp. harness connec-
tors B75 terminals with CONSULT-III or oscilloscope.

Are audio signal voltage readings as specified?

YES

>> Replace suspect tweeter. Refer to 

AV-460, "Removal

and Installation"

.

NO

>> GO TO 3

3.

HARNESS CHECK

1.

Disconnect AV control unit connector M39 and BOSE speaker
amp. connector B75.

2.

Check continuity between AV control unit harness connector
M39 (A) and BOSE speaker amp. harness connector B75 (B).

3.

Check continuity between AV control unit harness connector
M39 (A) and ground.

Are the continuity test results as specified?

YES

>> GO TO 4

NO

>> • Check connector housings for disconnected or loose terminals.

• Repair harness or connector.

4.

REAR TWEETER SIGNAL CHECK

Connector

Terminals

Condition

Reference

signal

(+)

(-)

B75

9

10

Receive 
audio sig-
nal

11

12

ALNIA0534GB

SKIA0177E

A

B 

Continuity

Connector

Terminal

Connector

Terminal

M39

4

B75

26

Yes

5

25

13

24

14

23

A

—

Continuity

Connector

Terminal

M39

4

Ground

No

5

13

14

ALNIA0551GB

2009 Pathfinder

AV-394

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

REAR TWEETER

1.

Connect AV control unit connector M39 and BOSE speaker
amp. connector B75.

2.

Turn ignition switch to ACC.

3.

Push “POWER” switch.

4.

Check the signal between AV control unit harness connector
M39 terminals with CONSULT-III or oscilloscope.

Is the audio signal voltage reading as specified?

YES

>> Replace BOSE speaker amp. Refer to 

AV-461,

"Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-455, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M39

4

5

Receive 
audio sig-
nal

13

14

AWNIA0034ZZ

SKIA0177E

2009 Pathfinder

AV

SUBWOOFER

AV-395

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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SUBWOOFER

Description

INFOID:0000000003939264

The AV control unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the
audio signals before sending them to the subwoofer using the audio signal circuits.

Diagnosis Procedure

INFOID:0000000003939265

1.

VERIFY SUBWOOFER POWER AND GROUND SUPPLY

Check power and ground supply to the subwoofer.  Refer to 

AV-196, "SUBWOOFER : Diagnosis Procedure"

Did the power and ground supply check OK?

YES

>> GO TO 2

NO

>> • Check connector housings for disconnected or loose terminals.

• Repair harness or connector.

2.

HARNESS CHECK

1.

Disconnect BOSE speaker amp. connectors and subwoofer
connector.

2.

Check continuity between BOSE speaker amp. harness connec-
tors B74 (A) and B75 (B) and subwoofer harness connector B72
(C).

3.

Check continuity between BOSE speaker amp. harness connec-
tor B74 (A) and B75 (B) and ground.

Are the continuity test results as specified?

YES

>> GO TO 3

NO

>> • Check connector housings for disconnected or loose

terminals.

• Repair harness or connector.

3.

SUBWOOFER AMP ON SIGNAL CHECK

1.

Connect BOSE speaker amp. connector B74.

2.

Turn ignition switch to ACC.

3.

Push "POWER" switch. 

4.

Check voltage between subwoofer connector B72 terminal 4
and ground.

Are the voltage readings as specified?

YES

>> GO TO 4

NO

>> Replace BOSE speaker amp.  Refer to 

AV-461, "Removal and Installation"

Connector

Terminal

Connector

Terminal

Continuity

A: B74

3

C: B72

1

Yes

19

2

B: B75

22

4

Connector

Terminal

-

Continuity

A: B74

3

Ground

No

19

B: B75

22

ALNIA0536GB

(+)

(-)

Voltage

Connector

Terminal

B72

4

Ground

Battery voltage

ALNIA0540GB

2009 Pathfinder