Nissan Altima L32. Instruction — part 9

AV-28

< COMPONENT DIAGNOSIS >

[BASE AUDIO]

FRONT TWEETER (COUPE)

FRONT TWEETER (COUPE)

Description

INFOID:0000000004206375

The audio unit sends audio signals to the front tweeters using the door speaker circuits.

Diagnosis Procedure

INFOID:0000000004206376

1.

HARNESS CHECK

1. Disconnect audio unit connector M43 (A) and suspect tweeter

connector (B).

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

and suspect tweeter harness connector (B).

3. Check continuity between audio unit harness connector M43 (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

M43

2

M51

1

Yes

3

2

11

M52

1

12

2

A

—

Continuity

Connector

Terminal

M43

2

Ground

No

3

11

12

AWNIA0031ZZ

AV

FRONT TWEETER (COUPE)

AV-29

< COMPONENT DIAGNOSIS >

[BASE AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

1. Connect audio unit connector and tweeter connector.

2. Turn ignition switch to ACC.

3. Push “POWER” switch.

4. Check the signal between audio unit harness connector termi-

nals with CONSULT-III or oscilloscope.

Is the audio signal voltage as specified?

YES

>> Replace tweeter. Refer to

AV-73, "Removal and Installa-

tion"

.

NO

>> Replace audio unit. Refer to

AV-72, "Removal and

Installation"

.

(+)

(-)

Condition

Reference

signal

Con-

nector

Terminal

Terminal

M43

2

3

Receive
audio sig-
nal

11

12

AWNIA0032ZZ

SKIA0177E

AV-30

< COMPONENT DIAGNOSIS >

[BASE AUDIO]

TWEETER (SEDAN)

TWEETER (SEDAN)

Description

INFOID:0000000004206377

The audio unit sends audio signals to the tweeters using the door speaker circuits.

Diagnosis Procedure

INFOID:0000000004206378

1.

HARNESS CHECK

1. Disconnect audio unit connector M43 (A) and suspect tweeter

connector (B).

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

and suspect tweeter harness connector (B).

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

TWEETER SIGNAL CHECK

A B

Continuity

Connector

Terminal

Connector

Terminal

M43

2

M51

1

Yes

3

2

11

M52

1

12

2

A

—

Continuity

Connector

Terminal

M43

2

Ground

No

3

11

12

AWNIA0031ZZ

AV

TWEETER (SEDAN)

AV-31

< COMPONENT DIAGNOSIS >

[BASE AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

1. Connect audio unit connector and tweeter connector.

2. Turn ignition switch to ACC.

3. Push “POWER” switch.

4. Check the signal between audio unit harness connector termi-

nals with CONSULT-III or oscilloscope.

Is the audio signal voltage as specified?

YES

>> Replace tweeter. Refer to

AV-73, "Removal and Installa-

tion"

.

NO

>> Replace audio unit. Refer to

AV-72, "Removal and

Installation"

.

(+)

(-)

Condition

Reference

signal

Con-

nector

Terminal

Terminal

M43

2

3

Receive
audio sig-
nal

11

12

AWNIA0032ZZ

SKIA0177E