Nissan Xterra. Instruction — part 10

AV-32

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

FRONT TWEETER

FRONT TWEETER

Description

INFOID:0000000010247116

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

Diagnosis Procedure

INFOID:0000000010247117

Regarding Wiring Diagram information, refer to

AV-14, "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 DOOR SPEAKER 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 DOOR SPEAKER 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

M109 (LH)

1

Yes

3

2

11

M111 (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

FRONT TWEETER

AV-33

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Is the inspection result normal?

YES

>> Replace front tweeter. Refer to

AV-49, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to

AV-48, "Removal and Installation"

.

2

3

Audio signal output

11

12

SKIB3609E

AV-34

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

REAR DOOR SPEAKER

REAR DOOR SPEAKER

Description

INFOID:0000000010247118

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

Diagnosis Procedure

INFOID:0000000010247119

Regarding Wiring Diagram information, refer to

AV-14, "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 DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY

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

2. Check continuity between audio unit connector M43 and suspect rear door 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 FRONT DOOR SPEAKER SIGNAL

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

Continuity

Connector

Terminal

Connector

Terminal

M43

4

D207 (LH)

1

Yes

5

2

13

D307 (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

AV

REAR DOOR SPEAKER

AV-35

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Is the inspection result normal?

YES

>> Replace rear door speaker. Refer to

AV-51, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to

AV-48, "Removal and Installation"

.

4

5

Audio signal output

13

14

SKIB3609E