Nissan Altima L32. Manual - part 86

AV-336

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

TWEETER (SEDAN)

TWEETER (SEDAN)

Description

INFOID:0000000004206644

The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio

signals before sending them to the tweeters using the audio signal circuits.

Diagnosis Procedure

INFOID:0000000004206645

1.

HARNESS CHECK

1. Disconnect BOSE speaker amp. connector B122 and suspect

tweeter connector.

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

tor B122 (A) and suspect tweeter harness connector (B).

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

tor B122 (A) and ground.

Are continuity test results as specified?

YES

>> GO TO 2

NO

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

• Repair harness or connector.

2.

TWEETER SIGNAL CHECK

Terminals

Continuity

A

B

Connector

Terminal

Connector

Terminal

B122

41

M51

1

Yes

42

2

44

M52

1

43

2

Terminals

Continuity

A

—

Connector

Terminal

B122

41

Ground

No

42

44

43

ALNIA0137ZZ

AV

TWEETER (SEDAN)

AV-337

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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1. Connect BOSE speaker amp. connector B122 and suspect

tweeter connector.

2. Turn ignition switch to ACC.

3. Push “POWER” switch.

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

tor B122 terminals with CONSULT-III or oscilloscope.

Are voltage readings as specified?

YES

>> Replace suspect tweeter. Refer to 

AV-440, "Removal

and Installation"

.

NO

>> GO TO 3

3.

HARNESS CHECK

1. Disconnect AV control unit connector M47 and BOSE speaker

amp. connector B121.

2. Check continuity between AV control unit harness connector (A)

M47 and BOSE speaker amp. harness connector B121 (B).

3. Check continuity between AV control unit harness connector

B121 (A) and ground.

Are continuity test results as specified?

YES

>> GO TO 4

NO

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

• Repair harness or connector.

4.

TWEETER SIGNAL CHECK

Connector

Terminals

Condition

Reference

signal

(+)

(-)

B122

41

42

Receive 
audio sig-
nal

44

43

ALNIA0138ZZ

SKIA0177E

Terminals

Continuity

A

B 

Connector

Terminal

Connector

Terminal

M47

2

B121

75

Yes

3

76

11

73

12

74

Terminals

Continuity

A 

—

Connector

Terminal

M47

2

Ground

No

3

11

12

ALNIA0136ZZ

AV-338

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

TWEETER (SEDAN)

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-III or oscilloscope.

Are voltage readings as specified?

YES

>> Replace BOSE speaker amp. Refer to 

AV-438,

"Removal and Installation - Sedan"

.

NO

>> Replace AV control unit. Refer to 

AV-437, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M47

2

3

Receive 
audio sig-
nal

11

12

ALNIA0171ZZ

SKIA0177E

AV

CENTER SPEAKER

AV-339

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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CENTER SPEAKER

Description

INFOID:0000000004206646

The audio 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:0000000004206647

1.

HARNESS CHECK

1. Disconnect BOSE speaker amp. connector B121 and center

speaker connector M151.

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

tor B121 (A) and center speaker harness connector M151 (B).

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

tor B121 (A) and ground.

Are continuity test results as specified?

YES

>> GO TO 2

NO

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

• Repair harness or connector.

2.

CENTER SPEAKER SIGNAL CHECK

1. Connect BOSE speaker amp. connector B121 and center

speaker connector M151.

2. Turn ignition switch to ACC.

3. Push “POWER” switch.

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

tor B121 terminals with CONSULT-III or oscilloscope.

Is the audio signal voltage as specified?

YES

>> Replace center speaker. Refer to 

AV-441, "Removal and Installation"

.

NO

>> GO TO 3

3.

HARNESS CHECK

A B

Continuity

Connector

Terminal

Connector

Terminal

B121

69

M151

1

Yes

70

2

A 

—

Continuity

Connector

Terminal

B121

69

Ground

No

70

ALNIA0139ZZ

Connector

Terminals

Condition

Reference

signal

(+)

(-)

B121

69

70

Receive 
audio sig-
nal

ALNIA0140ZZ

SKIA0177E