Nissan Pathfinder (2008 year). Manual - part 30

 

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Nissan Pathfinder (2008 year). Manual - part 30

 

 

AV-80

< COMPONENT DIAGNOSIS >

[MID AUDIO]

VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT

VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT

Description

INFOID:0000000001450814

In composite image (AUX image, camera image), transmit the vertical synchronizing (VP) signal and horizon-
tal synchronizing (HP) signal from display unit to AV control unit so as to synchronize the RGB images dis-
played with AV control unit such as the image quality adjusting menu, etc.

Diagnosis Procedure

INFOID:0000000001450815

1.

CHECK CONTINUITY VERTICAL SINCHRONIZING (VP) 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 20 and AV control unit harness connector M45 (B)
terminal 57.

4.

Check continuity between display unit harness connector M93
(A) terminal 20 and ground.

Are continuity results as specified?

YES

>> GO TO 2

NO

>> Repair harness or connector.

2.

CHECK VERTICAL SINCHRONIZING (VP) 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 20 and ground.

Are voltage readings as specified?

YES

>> Replace AV control unit. Refer to 

AV-134, "Removal and Installation"

.

NO

>> Replace display unit. Refer to 

AV-136, "Removal and Installation"

.

A

B

Continuity

Connector

Terminal

Connector

Terminal

M93

20

M45

57

Yes

A

—

Continuity

Connector

Terminal

M93

20

Ground

No

ALNIA0392GB

(+)

(-)

Condition

Reference signal

Connector

Terminal

M93

20

Ground

Receive 
audio sig-
nal

ALNIA0393GB

SKIB3598E

AV

FRONT DOOR SPEAKER

AV-81

< COMPONENT DIAGNOSIS >

[MID AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

FRONT DOOR SPEAKER

Description

INFOID:0000000001450816

The AV control unit sends audio signals to the front door speakers using the front door speaker circuits.

Diagnosis Procedure

INFOID:0000000001450817

1.

HARNESS CHECK

1.

Disconnect AV control unit connector M42 and suspect speaker
connector.

2.

Check continuity between AV control unit harness connector
M42 (A) terminal and suspect speaker harness connector (B)
terminal.

3.

Check continuity between AV control unit harness connector
M42 (A) terminal and ground.

Are continuity results as specified?

YES

>> GO TO 2

NO

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

• Repair harness or connector.

2.

FRONT SPEAKER SIGNAL CHECK

A

B

Continuity

Connector

Terminal

Connector

Terminal

M42

2

D12

1

Yes

3

2

11

D112

1

12

2

A

—

Continuity

Connector

Terminal

M42

2

Ground

No

3

11

12

AWNIA0031ZZ

AV-82

< COMPONENT DIAGNOSIS >

[MID AUDIO]

FRONT DOOR SPEAKER

1.

Connect AV control unit connector M42 and front speaker con-
nector.

2.

Turn ignition switch to ACC.

3.

Push “POWER” switch.

4.

Check the signal between AV control unit harness connector
M42 terminals with CONSULT-III or oscilloscope.

Is the audio signal voltage as specified?

YES

>> Replace speaker. Refer to 

AV-138, "Removal and Instal-

lation"

.

NO

>> Replace AV control unit. Refer to 

AV-134, "Removal and

Installation"

.

(+)

(-)

Condi-

tion

Reference signal

Con-

nec-

tor

Termi-

nal

Con-

nec-

tor

Termi-

nal

M42

2

M42

3

Receive 
audio 
signal

11

12

AWNIA0032ZZ

SKIA0177E

AV

FRONT TWEETER

AV-83

< COMPONENT DIAGNOSIS >

[MID AUDIO]

C

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FRONT TWEETER

Description

INFOID:0000000001450818

The AV control unit sends audio signals to the front tweeters using the front tweeter circuits.

Diagnosis Procedure

INFOID:0000000001450819

1.

HARNESS CHECK

1.

Disconnect AV control unit connector M42 and suspect front
tweeter connector.

2.

Check continuity between AV control unit harness connector
M42 (A) and suspect front tweeter harness connector (B).

3.

Check continuity between AV control unit harness connector
M42 (A) and ground.

Are the continuity results as specified?

YES

>> GO TO 2

NO

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

• Repair harness or connector.

2.

FRONT TWEETER SIGNAL CHECK

A

B

Continuity

Connector

Terminal

Connector

Terminal

M42

2

M109

1

Yes

3

2

11

M111

1

12

2

A

—

Continuity

Connector

Terminal

M42

2

Ground

No

3

11

12

AWNIA0031ZZ

AV-84

< COMPONENT DIAGNOSIS >

[MID AUDIO]

FRONT TWEETER

1.

Connect AV control unit connector M42 and front tweeter con-
nector.

2.

Turn ignition switch to ACC.

3.

Push “POWER” switch.

4.

Check the signal between AV control unit harness connector
M42 terminals with CONSULT-III or oscilloscope.

Is the audio signal voltage as specified?

YES

>> Replace the suspect front tweeter. Refer to 

AV-137,

"Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-134, "Removal and

Installation"

.

(+)

(-)

Condi-

tion

Reference signal

Con-

nec-

tor

Termi-

nal

Con-

nec-

tor

Termi-

nal

M42

2

M42

3

Receive 
audio 
signal

11

12

AWNIA0032ZZ

SKIA0177E

AV

REAR DOOR SPEAKER

AV-85

< COMPONENT DIAGNOSIS >

[MID AUDIO]

C

D

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F

G

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B

A

O

P

REAR DOOR SPEAKER

Description

INFOID:0000000001450820

The AV control unit sends audio signals to the rear speakers using the rear speaker circuits.

Diagnosis Procedure

INFOID:0000000001450821

1.

HARNESS CHECK

1.

Disconnect AV control unit connector M42 and suspect rear
speaker connector.

2.

Check continuity between AV control unit harness connector
M42 (A) and suspect rear speaker harness connector (B).

3.

Check continuity between AV control unit harness connector
M42 (A) and ground.

Are the continuity results as specified?

YES

>> GO TO 2

NO

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

• Repair harness or connector.

2.

REAR SPEAKER SIGNAL CHECK

A B

Continuity

Connector

Terminal

Connector

Terminal

M42

4

D207

1

Yes

5

2

13

D307

1

14

2

A

—

Continuity

Connector

Terminal

M42

4

Ground

No

5

13

14

AWNIA0033ZZ

AV-86

< COMPONENT DIAGNOSIS >

[MID AUDIO]

REAR DOOR SPEAKER

1.

Connect AV control unit connector and rear speaker connector.

2.

Turn ignition switch to ACC.

3.

Push “POWER” switch.

4.

Check the signal between AV control unit harness connector
M42 terminals with CONSULT-III or oscilloscope.

Is the audio signal voltage as specified?

YES

>> Replace the suspect rear door speaker. Refer to 

AV-

139, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-134, "Removal and

Installation"

.

Terminals

Condi-

tion

Reference

signal

(+)

(-)

Con-

nector

Termi-

nal

Con-

nector

Terminal

M42

4

M42

5

Receive 
audio 
signal

13

14

AWNIA0034ZZ

SKIA0177E

AV

STEERING SWITCH

AV-87

< COMPONENT DIAGNOSIS >

[MID AUDIO]

C

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B

A

O

P

STEERING SWITCH

Description

INFOID:0000000001450824

When one of the steering wheel AV control switches is pushed, the resistance in the steering wheel AV control
switch circuit changes depending on which button is pushed.

Diagnosis Procedure

INFOID:0000000001450825

1.

CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE

1.

Disconnect steering wheel audio control switch connector M102.

2.

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-140, "Removal and Installation"

.

2.

CHECK HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect AV control unit connector M42 and spiral cable con-
nector M30.

3.

Check continuity between AV control unit harness connector
M42 (A) and spiral cable harness connector M30 (B).

4.

Check continuity between AV control unit connector M42 (A) and ground.

Are the continuity results as specified?

YES

>> GO TO 3

NO

>> Repair harness.

3.

SPIRAL CABLE CHECK

Terminal

Signal name

Condition

Resistance 

(

Ω

)

(Approx.)

16

17

Seek (down)

Depress  

switch.

165

Volume (down)

Depress VOL down switch.

487

Power

Depress PWR switch.

0

20

17

Seek (up)

Depress  

switch.

165

Volume (up)

Depress VOL up switch.

487

Mode

Depress MODE switch.

0

WKIA4457E

A

B 

Continuity

Connector

Terminal

Connector

Terminal

M42

6

M30

24

Yes

15

31

16

32

A

—

Continuity

Connector

Terminal

M42

6

Ground

No

15

16

ALNIA0332GB

 

 

 

 

 

 

 

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