Nissan Altima L32. Manual - part 32

AV-120

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

FRONT TWEETER (COUPE)

FRONT TWEETER (COUPE)

Description

INFOID:0000000004206448

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

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

Diagnosis Procedure

INFOID:0000000004206449

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.

FRONT TWEETER SIGNAL CHECK

A

B

Continuity

Connector

Terminal

Connector

Terminal

B122

41

M51

1

Yes

42

2

44

M52

1

43

2

A

—

Continuity

Connector

Terminal

B122

41

Ground

No

42

44

43

ALNIA0137ZZ

AV

FRONT TWEETER (COUPE)

AV-121

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

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 the audio signal voltage readings as specified?

YES

>> Replace suspect tweeter. Refer to 

AV-217, "Removal

and Installation"

.

NO

>> GO TO 3

3.

HARNESS CHECK

1. Disconnect audio unit connector M43 and BOSE speaker amp.

connector B121.

2. Check continuity between audio unit harness connector M43 (A)

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

3. Check continuity between audio unit harness connector M43 (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.

FRONT TWEETER SIGNAL CHECK

Connector

Terminals

Condition

Reference

signal

(+)

(-)

B122

41

42

Receive 
audio sig-
nal

44

43

ALNIA0138ZZ

SKIA0177E

A

B 

Continuity

Connector

Terminal

Connector

Terminal

M43

2

B121

75

Yes

3

76

11

73

12

74

A 

—

Continuity

Connector

Terminal

M43

2

Ground

No

3

11

12

ALNIA0136ZZ

AV-122

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

FRONT TWEETER (COUPE)

1. Connect audio unit connector and BOSE speaker amp. connec-

tor.

2. Turn ignition switch ACC.

3. Push “POWER” switch.

4. Check the signal between audio unit harness connector M43

terminals with CONSULT-III or oscilloscope.

Are the audio signal voltage readings as specified?

YES

>> Replace BOSE speaker amp. Refer to 

AV-216,

"Removal and Installation - Coupe"

.

NO

>> Replace audio unit. Refer to 

AV-215, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M43

2

3

Receive 
audio sig-
nal

11

12

ALNIA0171ZZ

SKIA0177E

AV

TWEETER (SEDAN)

AV-123

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

TWEETER (SEDAN)

Description

INFOID:0000000004206450

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

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

Diagnosis Procedure

INFOID:0000000004206451

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

A

B

Continuity

Connector

Terminal

Connector

Terminal

B122

41

M51

1

Yes

42

2

44

M52

1

43

2

A

—

Continuity

Connector

Terminal

B122

41

Ground

No

42

44

43

ALNIA0137ZZ