Nissan Pathfinder (2012 year). Manual - part 68

 

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Nissan Pathfinder (2012 year). Manual - part 68

 

 

AV-362

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

SUBWOOFER

SUBWOOFER

Description

INFOID:0000000007347918

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:0000000007347919

Regarding Wiring Diagram information, refer to 

AV-385, "Wiring Diagram - With Navigation System"

.

1.

CONNECTOR CHECK

Check the AV control unit, BOSE speaker amp. and subwoofer connectors for the following:

• Proper connection

• Damage

• Disconnected or loose terminals
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

VERIFY SUBWOOFER POWER AND GROUND SUPPLY

Check power and ground supply to the subwoofer.  Refer to 

AV-338, "SUBWOOFER : Diagnosis Procedure"

Did the power and ground supply check OK?

YES

>> GO TO 3

NO

>> Repair harness or connector.

3.

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 4

NO

>> Repair harness or connector.

4.

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

August 2012

2012 Pathfinder

AV

SUBWOOFER

AV-363

< DTC/CIRCUIT 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 5

NO

>> Replace BOSE speaker amp.  Refer to 

AV-427, "Removal and Installation"

5.

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 or oscilloscope.

Is the audio signal voltage as specified?

YES

>> Replace subwoofer. Refer to 

AV-428, "Removal and Installation"

.

NO

>> GO TO 6

6.

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

August 2012

2012 Pathfinder

AV-364

< DTC/CIRCUIT 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 7

NO

>> Repair harness or connector.

7.

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 or oscilloscope.

Is the audio signal voltage reading as specified?

YES

>> Replace BOSE speaker amp. Refer to 

AV-427,

"Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-420, "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

August 2012

2012 Pathfinder

AV

AMP ON SIGNAL CIRCUIT

AV-365

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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AMP ON SIGNAL CIRCUIT

Description

INFOID:0000000007347920

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:0000000007347921

Regarding Wiring Diagram information, refer to 

AV-385, "Wiring Diagram - With Navigation System"

.

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-420, "Removal and

Installation"

.

(+)

(-)

Value (Approx.)

Connector

Terminal

B75

31

Ground

Battery Voltage

ALNIA0539GB

(+)

(-)

Value (Approx.)

Connector

Terminal

M39

1

Ground

Battery Voltage

ALNIA1185ZZ

August 2012

2012 Pathfinder

AV-366

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

STEERING SWITCH

STEERING SWITCH

Description

INFOID:0000000007347922

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:0000000007347923

Regarding Wiring Diagram information, refer to 

AV-385, "Wiring Diagram - With Navigation System"

.

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-436, "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.

652

Mode/End

Depress  

switch.

0

20

17

Seek (up)

Depress  

switch.

165

Volume (up)

Depress VOL up switch.

652

Phone/Send

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

August 2012

2012 Pathfinder

AV

STEERING SWITCH

AV-367

< DTC/CIRCUIT 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

August 2012

2012 Pathfinder

AV-368

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

MICROPHONE SIGNAL CIRCUIT

MICROPHONE SIGNAL CIRCUIT

Description

INFOID:0000000007347924

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

Diagnosis Procedure

INFOID:0000000007347925

Regarding Wiring Diagram information, refer to 

AV-385, "Wiring Diagram - With Navigation System"

.

1.

VERIFY MICROPHONE POWER AND GROUND SUPPLY

Check power and ground supply to the microphone. Refer to 

AV-341, "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

August 2012

2012 Pathfinder

AV

MICROPHONE SIGNAL CIRCUIT

AV-369

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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Check signal between AV control unit harness connector M48 termi-

nals 74 and 75 with CONSULT or oscilliscope.

Are voltage readings as specified?

YES

>> Replace AV control unit. Refer to 

AV-420, "Removal and Installation"

.

NO

>> Replace microphone. Refer to 

AV-437, "Removal and Installation"

.

Connector

(+)

(-)

Reference signal

Terminal

Terminal

M48

75

74

While speaking into MIC

ALNIA0553GB

PKIB5037J

August 2012

2012 Pathfinder

 

 

 

 

 

 

 

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