Nissan Pathfinder (2012 year). Manual - part 44

AV-170

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

POWER SUPPLY AND GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect the video monitor connector B76 and the DVD

player connector M205.

3. Check continuity between the video monitor harness connector

B76 (A) and the DVD player connector M205 (B).

4. Check continuity between video monitor harness connector B76

(A) and ground.

Are continuity results as specified?

YES

>> Check DVD player power and ground supply.  Refer to 

AV-168, "DVD PLAYER : Diagnosis Proce-

dure"

.

NO

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect video monitor connector.

3. Check continuity between video monitor harness connector B76

and ground.

Does continuity exist?

YES

>> Inspection End.

NO

>> Repair harness or connector.

BLUETOOTH CONTROL UNIT
BLUETOOTH CONTROL UNIT : Diagnosis Procedure

INFOID:0000000007347737

Regarding Wiring Diagram information, refer to 

AV-225, "Wiring Diagram - Without Navigation System"

.

1.

CHECK FUSE

Check that the following fuses of the Bluetooth control unit are not blown.

Are the fuses OK?

YES

>> GO TO 2

NO

>> Be sure to eliminate cause of malfunction before installing new fuse. 

2.

CHECK POWER SUPPLY CIRCUIT

A

B

Continuity

Connector

Terminal

Connector

Terminal

B76

16

M205

9

Yes

A

—

Continuity

Connector

Terminal

B76

16

Ground

No

ALNIA0517GB

Connector

Terminal

—

Continuity 

B76

12

Ground

Yes

15

ALNIA0518GB

Power source

Fuse No.

Battery

29

Ignition switch ACC or ON

4

Ignition switch ON or START 

12

August 2012

2012 Pathfinder

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-171

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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B

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Check voltage between Bluetooth control unit harness connector

and ground.

Are the voltage results as specified?

YES

>> GO TO 3

NO

>> Check harness between Bluetooth control unit and fuse.

3.

CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect Bluetooth control unit connector B124.

3. Check continuity between Bluetooth control unit harness con-

nector and ground.

Does continuity exist?

YES

>> Inspection End.

NO

>> Repair harness or connector.

MICROPHONE
MICROPHONE : Diagnosis Procedure

INFOID:0000000007347738

Regarding Wiring Diagram information, refer to 

AV-225, "Wiring Diagram - Without Navigation System"

.

1.

CHECK POWER SUPPLY CIRCUIT (MICROPHONE SIDE)

Check voltage between microphone harness connector and ground.

Is proper voltage present?

YES

>> GO TO 4

NO

>> GO TO 2

2.

CHECK POWER SUPPLY CIRCUIT (CONTINUITY)

(+)

(-)

OFF

ACC

ON

Connector

Terminal

B124

1

Ground

Battery 
voltage

Battery 
voltage

Battery 
voltage

2

0V

Battery 
voltage

Battery 
voltage

3

0V

0V

Battery 
voltage

WKIA4389E

Connector

Terminal

—

Continuity 

B124

4

Ground

Yes

21

22

24

AWLIA1681ZZ

(+)

(-)

Value (Approx.)

Connector

Terminal

R8

4

Ground

5V

WKIA5796E

August 2012

2012 Pathfinder

AV-172

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

POWER SUPPLY AND GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect Bluetooth control unit and microphone connectors.

3. Check continuity between microphone harness connector R8

(A) terminal 4 and Bluetooth control unit harness connector

B124 (B) terminal 29. 

4. Check continuity between microphone harness connector R8

(A) terminal 4 and ground. 

Are continuity results as specified?

YES

>> GO TO 3

NO

>> Repair harness or connector.

3.

CHECK POWER SUPPLY CIRCUIT (BLUETOOTH CONTROL UNIT SIDE)

1. Connect Bluetooth control unit connector.

2. Turn ignition switch ON.

3. Check voltage between Bluetooth control unit harness connec-

tor and ground.

Is proper voltage present?

YES

>> Inspection End.

NO

>> Replace Bluetooth control unit. Refer to 

AV-264,

"Removal and Installation"

.

4.

CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect Bluetooth control unit and microphone connectors.

3. Check continuity between microphone harness connector R8

terminal 2 and Bluetooth control unit harness connector B124

terminal 8. 

Is continuity present?

YES

>> Inspection End.

NO

>> Repair harness or connector.

A

B

Continuity

Connector

Terminal

Connector

Terminal

R8

4

B124

29

Yes

A

—

Continuity

Connector

Terminal

R8

4

Ground

No

ALNIA0132ZZ

(+)

(-)

Value (Approx.)

Connector

Terminal

B124

29

Ground

5V

ALNIA0133ZZ

Connector

Terminal

Connector

Terminal

Continuity

R8

2

B124

8

Yes

ALNIA0170ZZ

August 2012

2012 Pathfinder

AV

RGB (R: RED) SIGNAL CIRCUIT

AV-173

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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RGB (R: RED) SIGNAL CIRCUIT

Description

INFOID:0000000007347739

Transmit the image displayed with AV control unit with RGB signal to the display unit.

Diagnosis Procedure

INFOID:0000000007347740

Regarding Wiring Diagram information, refer to 

AV-225, "Wiring Diagram - Without Navigation System"

.

1.

CHECK CONTINUITY RGB (R: RED) SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect display unit connector M93 and AV control unit con-

nector M45.

3. Check continuity between display unit harness connector M93

(A) terminal 17 and AV control unit harness connector M45 (B)

terminal 40.

4. Check continuity between display unit harness connector M93

(A) terminal 17 and ground.

Are the continuity results as specified?

YES

>> GO TO 2

NO

>> Repair harness or connector.

2.

CHECK RGB (R: RED) SIGNAL

1. Connect display unit connector M93 and AV control unit connec-

tor M45.

2. Turn ignition switch ON.

3. Check signal between display unit harness connector M93 ter-

minal 17 and ground.

Are the voltage readings as specified?

YES

>> Replace display unit. Refer to 

AV-257, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-255, "Removal and Installation"

.

A

B

Continuity

Connector

Terminal

Connector

Terminal

M93

17

M45

40

Yes

A

—

Continuity

Connector

Terminal

M93

17

Ground

No

ALNIA0382GB

(+)

(-)

Condition

Reference signal

Connector

Terminal

M93

17

Ground

Receive 
audio sig-
nal

ALNIA0383GB

SKIB2238J

August 2012

2012 Pathfinder

AV-174

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

RGB (G: GREEN) SIGNAL CIRCUIT

RGB (G: GREEN) SIGNAL CIRCUIT

Description

INFOID:0000000007347741

Transmit the image displayed with AV control unit with RGB signal to the display unit.

Diagnosis Procedure

INFOID:0000000007347742

Regarding Wiring Diagram information, refer to 

AV-225, "Wiring Diagram - Without Navigation System"

.

1.

CHECK CONTINUITY RGB (G: GREEN) SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect display unit connector M93 and AV control unit con-

nector M45.

3. Check continuity between display unit harness connector M93

(A) terminal 6 and AV control unit harness connector M45 (B)

terminal 39.

4. Check continuity between display unit harness connector M93

(A) terminal 6 and ground.

Are the continuity results as specified?

YES

>> GO TO 2

NO

>> Repair harness or connector.

2.

CHECK RGB (G: GREEN) SIGNAL

1. Connect display unit connector M93 and AV control unit connec-

tor M45.

2. Turn ignition switch ON.

3. Check signal between display unit harness connector M93 ter-

minal 6 and ground.

Are voltage readings as specified?

YES

>> Replace display unit. Refer to 

AV-257, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-255, "Removal and Installation"

.

A

B

Continuity

Connector

Terminal

Connector

Terminal

M93

6

M45

39

Yes

A

—

Continuity

Connector

Terminal

M93

6

Ground

No

ALNIA0384GB

(+)

(-)

Condition

Reference signal

Connector

Terminal

M93

6

Ground

Receive 
audio sig-
nal

ALNIA0385GB

SKIB2236J

August 2012

2012 Pathfinder

AV

RGB (B: BLUE) SIGNAL CIRCUIT

AV-175

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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RGB (B: BLUE) SIGNAL CIRCUIT

Description

INFOID:0000000007347743

Transmit the image displayed with AV control unit with RGB signal to the display unit.

Diagnosis Procedure

INFOID:0000000007347744

Regarding Wiring Diagram information, refer to 

AV-225, "Wiring Diagram - Without Navigation System"

.

1.

CHECK CONTINUITY RGB (B: BLUE) SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect display unit connector M93 and AV control unit con-

nector M45.

3. Check continuity between display unit harness connector M93

(A) terminal 18 and AV control unit harness connector M45 (B)

terminal 38.

4. Check continuity between display unit harness connector M93

(A) terminal 18 and ground.

Are continuity results as specified?

YES

>> GO TO 2

NO

>> Repair harness or connector.

2.

CHECK RGB (B: BLUE) SIGNAL

1. Connect display unit connector M93 and AV control unit connec-

tor M45.

2. Turn ignition switch ON.

3. Check signal between display unit harness connector M93 ter-

minal 18 and ground.

Are voltage readings as specified?

YES

>> Replace display unit. Refer to 

AV-257, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-255, "Removal and Installation"

.

A

B

Continuity

Connector

Terminal

Connector

Terminal

M93

18

M45

38

Yes

A

—

Continuity

Connector

Terminal

M93

18

Ground

No

ALNIA0386GB

(+)

(-)

Condition

Reference signal

Connector

Terminal

M93

18

Ground

Receive 
audio sig-
nal

ALNIA0387GB

SKIB2237J

August 2012

2012 Pathfinder

AV-176

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

RGB SYNCHRONIZING SIGNAL CIRCUIT

RGB SYNCHRONIZING SIGNAL CIRCUIT

Description

INFOID:0000000007347745

Transmit the RGB synchronizing signal to the display unit so as to synchronize the RGB image displayed with

AV control unit.

Diagnosis Procedure

INFOID:0000000007347746

Regarding Wiring Diagram information, refer to 

AV-225, "Wiring Diagram - Without Navigation System"

.

1.

CHECK CONTINUITY RGB SYNCHRONIZING SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect display unit connector M93 and AV control unit con-

nector M45.

3. Check continuity between display unit harness connector M93

(A) terminal 19 and AV control unit harness connector M45 (B)

terminal 41.

4. Check continuity between display unit harness connector M93

(A) terminal 19 and ground.

Are continuity results as specified?

YES

>> GO TO 2

NO

>> Repair harness or connector.

2.

CHECK RGB SYNCHRONIZING SIGNAL

1. Connect display unit connector M93 and AV control unit connec-

tor M45.

2. Turn ignition switch ON.

3. Check signal between display unit harness connector M93 ter-

minal 19 and ground.

Are voltage readings as specified?

YES

>> Replace display unit. Refer to 

AV-257, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-255, "Removal and Installation"

.

A

B

Continuity

Connector

Terminal

Connector

Terminal

M93

19

M45

41

Yes

A

—

Continuity

Connector

Terminal

M93

19

Ground

No

ALNIA0388GB

(+)

(-)

Condition

Reference signal

Connector

Terminal

M93

19

Ground

Receive 
audio sig-
nal

ALNIA0389GB

SKIB3603E

August 2012

2012 Pathfinder

AV

RGB AREA (YS) SIGNAL CIRCUIT

AV-177

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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RGB AREA (YS) SIGNAL CIRCUIT

Description

INFOID:0000000007347747

Transmits the display area of RGB image displayed by AV control unit with RGB area (YS) signal to display

unit.

Diagnosis Procedure

INFOID:0000000007347748

Regarding Wiring Diagram information, refer to 

AV-225, "Wiring Diagram - Without Navigation System"

.

1.

CHECK CONTINUITY RGB AREA (YS) SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect display unit connector M93 and AV control unit con-

nector M45.

3. Check continuity between display unit harness connector M93

(A) terminal 9 and AV control unit harness connector M45 (B)

terminal 43.

4. Check continuity between display unit harness connector M93

(A) terminal 9 and ground.

Are continuity results as specified?

YES

>> GO TO 2

NO

>> Repair harness or connector.

2.

CHECK RGB SYNCHRONIZING SIGNAL

1. Connect display unit connector M93 and AV control unit connec-

tor M45.

2. Turn ignition switch ON.

3. Check signal between display unit harness connector M93 ter-

minal 9 and ground.

Are voltage readings as specified?

YES

>> Replace display unit. Refer to 

AV-257, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-255, "Removal and Installation"

.

A

B

Continuity

Connector

Terminal

Connector

Terminal

M93

9

M45

43

Yes

A

—

Continuity

Connector

Terminal

M93

9

Ground

No

ALNIA0390GB

(+)

(-)

Condition

Reference signal

Connector

Terminal

M93

9

Ground

Receive 
audio sig-
nal

ALNIA0391GB

PKIB4948J

August 2012

2012 Pathfinder