Nissan Pathfinder (2010 year). Manual - part 74

AV

REAR TWEETER

AV-399

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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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-466,

"Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-460, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M39

4

5

Receive 
audio sig-
nal

13

14

AWNIA0034ZZ

SKIA0177E

2010 Pathfinder

2010 Pathfinder

AV-400

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

SUBWOOFER

SUBWOOFER

Description

INFOID:0000000005259607

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:0000000005259608

Regarding Wiring Diagram information, refer to 

AV-414, "Wiring Diagram"

.

1.

VERIFY SUBWOOFER POWER AND GROUND SUPPLY

Check power and ground supply to the subwoofer.  Refer to 

AV-197, "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

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

2010 Pathfinder

2010 Pathfinder

AV

SUBWOOFER

AV-401

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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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-466, "Removal and Installation"

4.

SUBWOOFER AUDIO SIGNAL CHECK

1. Connect BOSE speaker amp. connectors and subwoofer connector.

2. Turn ignition switch to ACC.

3. Push “POWER” switch.

4. Check the signal between BOSE speaker amp. harness connec-

tor B74 terminals with CONSULT-III or oscilloscope.

Is the audio signal voltage as specified?

YES

>> Replace subwoofer. Refer to 

AV-467, "Removal and Installation"

.

NO

>> GO TO 5

5.

HARNESS CHECK

1. Turn ignition switch OFF.

(+)

(-)

Voltage

Connector

Terminal

B72

4

Ground

Battery voltage

ALNIA0540GB

Connector

Terminals

Condition

Reference

signal

(+)

(-)

B74

19

3

Receive au-
dio signal

ALNIA0879GB

SKIA0177E

2010 Pathfinder

2010 Pathfinder

AV-402

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

SUBWOOFER

2. Disconnect AV control unit connector M39 and BOSE speaker

amp. connector B75.

3. Check continuity between AV control unit harness connector

M39 (A) and BOSE speaker amp. harness connector B75 (B).

4. Check continuity between AV control unit harness connector

M39 (A) and ground.

Are the continuity test results as specified?

YES

>> GO TO 6

NO

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

• Repair harness or connector.

6.

BACK DOOR SPEAKER SIGNAL CHECK

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-466,

"Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-460, "Removal and

Installation"

.

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

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M39

4

5

Receive 
audio sig-
nal

13

14

AWNIA0034ZZ

SKIA0177E

2010 Pathfinder

2010 Pathfinder

AV

AMP ON SIGNAL CIRCUIT

AV-403

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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AMP ON SIGNAL CIRCUIT

Description

INFOID:0000000005259609

When the audio system is turned on, a voltage signal is supplied from the AV control unit to the BOSE speaker

amp. When this signal is received, the BOSE speaker amp. will turn on.

Diagnosis Procedure

INFOID:0000000005259610

Regarding Wiring Diagram information, refer to 

AV-414, "Wiring Diagram"

.

1.

CHECK AMP ON SIGNAL (BOSE SPEAKER AMP)

1. Turn audio system ON.

2. Check voltage between BOSE speaker amp. harness connector

B75 terminal 31 and ground.

Is battery voltage present?

YES

>> Inspection End.

NO

>> GO TO 2

2.

CHECK AMP ON SIGNAL (AV CONTROL UNIT)

Check voltage between AV control unit harness connector M39 ter-

minal 1 and ground.

Is battery voltage present?

YES

>> Repair harness or connector.

NO

>> Replace AV control unit. Refer to 

AV-460, "Removal and

Installation"

.

(+)

(-)

Value (Approx.)

Connector

Terminal

B75

31

Ground

Battery Voltage

ALNIA0539GB

(+)

(-)

Value (Approx.)

Connector

Terminal

M39

1

Ground

Battery Voltage

ALNIA1185ZZ

2010 Pathfinder

2010 Pathfinder

AV-404

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

STEERING SWITCH

STEERING SWITCH

Description

INFOID:0000000005259611

When one of the steering wheel audio control switches is pushed, the resistance in the steering wheel audio

control switch circuit changes depending on which button is pushed.

Diagnosis Procedure

INFOID:0000000005259612

Regarding Wiring Diagram information, refer to 

AV-414, "Wiring Diagram"

.

1.

CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE

1. Turn ignition switch OFF.

2. Disconnect steering wheel audio control switch connector M102.

3. Check resistance between steering switch connector terminals.

Do the steering wheel audio control switches check OK?

YES

>> GO TO 2

NO

>> Replace steering wheel audio control switch. Refer to 

AV-475, "Removal and Installation"

.

2.

CHECK HARNESS

1. Turn ignition switch OFF.

2. Disconnect AV control unit connector M39 and spiral cable con-

nector M30.

3. Check continuity between AV control unit harness connector

M39 (A) and spiral cable harness connector M30 (B).

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

Terminal

Signal name

Condition

Resistance 

(

Ω

)

(Approx.)

16

17

Seek (down)

Depress  

switch.

165

Volume (down)

Depress VOL down switch.

487

Phone/Send

Depress  

switch.

0

20

17

Seek (up)

Depress  

switch.

165

Volume (up)

Depress VOL up switch.

487

Mode/End

Depress  

switch.

0

WKIA4457E

A

B 

Continuity

Connector

Terminal

Connector

Terminal

M39

6

M30

24

Yes

15

31

16

32

A

—

Continuity

Connector

Terminal

M39

6

Ground

No

15

16

ALNIA0332GB

2010 Pathfinder

2010 Pathfinder

AV

STEERING SWITCH

AV-405

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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Are the continuity results as specified?

YES

>> GO TO 3

NO

>> Repair harness.

3.

SPIRAL CABLE CHECK

1. Disconnect spiral cable connector M102.

2. Check continuity between spiral cable harness connector M30

(A) and M102 (B).

Does continuity exist?

YES

>> Inspection End.

NO

>> Replace spiral cable. Refer to 

SR-7, "Removal and Installation"

.

A

B

Continuity

Connector

Terminal

Connector

Terminal

M30

24

M102

20

Yes

31

17

32

16

AWLIA1602ZZ

2010 Pathfinder

2010 Pathfinder

AV-406

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

MICROPHONE SIGNAL CIRCUIT

MICROPHONE SIGNAL CIRCUIT

Description

INFOID:0000000005259613

Voice signals are transmitted from the microphone to the AV control unit using the microphone signal circuits.

Diagnosis Procedure

INFOID:0000000005259614

Regarding Wiring Diagram information, refer to 

AV-414, "Wiring Diagram"

.

1.

VERIFY MICROPHONE POWER AND GROUND SUPPLY

Check power and ground supply to the microphone. Refer to 

AV-379, "MICROPHONE : 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.

CHECK HARNESS BETWEEN AV CONTROL UNIT AND MICROPHONE

1. Turn ignition switch OFF.

2. Disconnect AV control unit connector and microphone connec-

tor.

3. Check continuity between AV control unit harness connector

M48 (A) and microphone harness connector R8 (B).

4. Check continuity between AV control unit harness connector

M48 (A) and ground.

Are the continuity results as specified?

YES

>> GO TO 3

NO

>> Repair harness or connector.

3.

CHECK MICROPHONE SIGNAL

A

B

Continuity

Connector

Terminal

Connector

Terminal

M48

75

R8

1

Yes

74

2

73

4

A

—

Continuity

Connector

Terminal

M48

75

Ground

No

74

73

AWLIA1682ZZ

2010 Pathfinder

2010 Pathfinder