Nissan Maxima. Manual - part 148

AV-412

< DTC/CIRCUIT DIAGNOSIS >

[COLOR DISPLAY - W/ BOSE]

CENTER SPEAKER

CENTER SPEAKER

Description

INFOID:0000000009471368

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 center speaker using the audio signal circuits.

Diagnosis Procedure

INFOID:0000000009471369

Regarding Wiring Diagram information, refer to 

AV-449, "Wiring Diagram - With BOSE Audio system Without

Navigation System"

.

1.

CONNECTOR CHECK

Check the AV control unit, BOSE speaker amp. and speaker 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.

HARNESS CHECK

1. Disconnect BOSE speaker amp. connector B109 and center

speaker connector M130.

2. Check continuity between BOSE speaker amp. harness connec-

tor B109 (A) and center speaker harness connector M130 (B).

3. Check continuity between BOSE speaker amp. harness connec-

tor B109 (A) and ground.

Are continuity test results as specified?

YES

>> GO TO 3.

NO

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

• Repair harness or connector.

3.

CENTER SPEAKER SIGNAL CHECK

A B

Continuity

Connector

Terminal

Connector

Terminal

B109

29

M130

1

Yes

30

2

A 

—

Continuity

Connector

Terminal

B109

29

Ground

No

30

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AV

CENTER SPEAKER

AV-413

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[COLOR DISPLAY - W/ BOSE]

C

D

E

F

G

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M

B

A

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P

1. Connect BOSE speaker amp. connector B109 and center

speaker connector.

2. Turn ignition switch to ACC.

3. Push POWER switch.

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

tor B109 terminals with CONSULT or oscilloscope.

Is the audio signal voltage reading as specified?

YES

>> Replace center speaker. Refer to 

AV-489, "Removal and Installation"

.

NO

>> GO TO 4.

4.

HARNESS CHECK

1. Disconnect AV control unit connector M157 and BOSE speaker

amp. connector B109.

2. Check continuity between AV control unit harness connector

M157 (A) and BOSE speaker amp. harness connector B109 (B).

3. Check continuity between AV control unit harness connector

M157 (A) and ground.

Are continuity test results as specified?

YES

>> GO TO 5.

NO

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

• Repair harness or connector.

5.

CENTER SPEAKER SIGNAL CHECK

Connector

Terminals

Condition

Reference

signal

(+)

(-)

B109

29

30

Receive 
audio sig-
nal

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A

B 

Continuity

Connector

Terminal

Connector

Terminal

M157

113

B109

35

Yes

119

36

109

33

115

34

A

—

Continuity

Connector

Terminal

M157

113

Ground

No

119

109

115

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AV-414

< DTC/CIRCUIT DIAGNOSIS >

[COLOR DISPLAY - W/ BOSE]

CENTER SPEAKER

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

connector.

2. Turn ignition switch to ACC.

3. Push POWER switch.

4. Check the signal between AV control unit harness connector ter-

minals with CONSULT or oscilloscope.

Are the audio signal voltage readings as specified?

YES

>> Replace BOSE speaker amp. Refer to 

AV-493,

"Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-481, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M157

113

119

Receive 
audio sig-
nal

109

115

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SKIA0177E

AV

REAR DOOR SPEAKER

AV-415

< DTC/CIRCUIT DIAGNOSIS >

[COLOR DISPLAY - W/ BOSE]

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B

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REAR DOOR SPEAKER

Description

INFOID:0000000009471370

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:0000000009471371

Regarding Wiring Diagram information, refer to 

AV-449, "Wiring Diagram - With BOSE Audio system Without

Navigation System"

.

1.

CONNECTOR CHECK

Check the AV control unit, BOSE speaker amp. and speaker 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.

HARNESS CHECK

1. Disconnect BOSE speaker amp. connectors B109, B110 and

suspect speaker connector.

2. Check continuity between BOSE speaker amp. harness connec-

tors B109 (A) and B110 (B) and suspect speaker harness con-

nector (C).

3. Check continuity between BOSE speaker amp. harness connec-

tors B109 (A) and B110 (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.

REAR DOOR SPEAKER SIGNAL CHECK

Connector

Terminal

Connector

Terminal

Continuity

A: B109

15

C: D202

2

Yes

28

1

B: B110

9

C: D302

2

14

1

Connector

Terminal

-

Continuity

A: B109

15

Ground

No

28

B: B110

9

14

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