Nissan Sentra. Manual - part 12

AV-40

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

FRONT DOOR SPEAKER

Is the inspection result normal?

YES

>> Replace front door speaker. Refer to 

AV-60, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-58, "Removal and Installation"

.

2

3

Audio signal output

11

12

SKIB3609E

AV

FRONT TWEETER

AV-41

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

FRONT TWEETER

Diagnosis Procedure

INFOID:0000000009758813

Regarding Wiring Diagram information, refer to 

AV-25, "Wiring Diagram"

.

1.

CONNECTOR CHECK

Check the audio unit 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 terminals or connectors.

2.

CHECK FRONT TWEETER SIGNAL CIRCUIT CONTINUITY

1. Disconnect audio unit connector M43 and suspect front tweeter connector.

2. Check continuity between audio unit connector M43 and suspect front tweeter connector.

3. Check continuity between audio unit connector M43 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness or connectors.

3.

CHECK FRONT TWEETER SIGNAL

1. Connect audio unit connector M43 and suspect front tweeter connector.

2. Turn ignition switch to ACC.

3. Push audio unit POWER switch.

4. Check signal between the terminals of audio unit connector M43.

Audio unit

Front tweeter

Continuity

Connector

Terminal

Connector

Terminal

M43

2

M46 (LH)

1

Yes

3

2

11

M47 (RH)

1

12

2

Audio unit

Ground

Continuity

Connector

Terminal

M43

2

—

No

3

11

12

Audio unit connector M43

Condition

Reference value

(+)

(

−)

Terminal

Terminal

AV-42

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

FRONT TWEETER

Is the inspection result normal?

YES

>> Replace front tweeter. Refer to 

AV-59, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-58, "Removal and Installation"

.

2

3

Audio signal output

11

12

SKIB3609E

AV

REAR SPEAKER

AV-43

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

REAR SPEAKER

Diagnosis Procedure

INFOID:0000000009758814

Regarding Wiring Diagram information, refer to 

AV-25, "Wiring Diagram"

.

1.

CONNECTOR CHECK

Check the audio unit 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 terminals or connectors.

2.

CHECK REAR SPEAKER SIGNAL CIRCUIT CONTINUITY

1. Disconnect audio unit connector M43 and suspect rear speaker connector.

2. Check continuity between audio unit connector M43 and suspect rear speaker connector.

3. Check continuity between audio unit connector M43 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness or connectors.

3.

CHECK REAR SPEAKER SIGNAL

1. Connect audio unit connector M43 and suspect rear speaker connector.

2. Turn ignition switch to ACC.

3. Push audio unit POWER switch.

4. Check signal between the terminals of audio unit connector M43.

Audio unit

Rear speaker

Continuity

Connector

Terminal

Connector

Terminal

M43

4

B40 (LH)

1

Yes

5

2

13

B38 (RH)

1

14

2

Audio unit

Ground

Continuity

Connector

Terminal

M43

4

—

No

5

13

14

Audio unit connector M43

Condition

Reference value

(+)

(

−)

Terminal

Terminal