Nissan Frontier. Manual - part 18

AV-64

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO (FOR MEXICO)]

FRONT DOOR SPEAKER

FRONT DOOR SPEAKER

Description

INFOID:0000000010227916

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

Diagnosis Procedure

INFOID:0000000010227917

Regarding Wiring Diagram information, refer to 

AV-72, "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 M12 and suspect front door speaker connector.

2. Check continuity between audio unit connector M12 and suspect front door speaker connector.

3. Check continuity between audio unit connector M12 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 M12 and suspect front 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 M12.

Audio unit

Front door speaker

Continuity

Connector

Terminal

Connector

Terminal

M12

2

D12 (LH)

1

Yes

3

2

11

D112 (RH)

1

12

2

Audio unit

Ground

Continuity

Connector

Terminal

M12

2

—

No

3

11

12

Audio unit connector M12

Condition

Reference value

(+)

(

−)

Terminal

Terminal

AV

FRONT DOOR SPEAKER

AV-65

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO (FOR MEXICO)]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Is the inspection result normal?

YES

>> Replace front door speaker. Refer to 

AV-86, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-84, "Removal and Installation"

.

2

3

Audio signal output

11

12

SKIB3609E

AV-66

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO (FOR MEXICO)]

FRONT TWEETER

FRONT TWEETER

Description

INFOID:0000000010227918

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

Diagnosis Procedure

INFOID:0000000010227919

Regarding Wiring Diagram information, refer to 

AV-72, "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 M12 and suspect front tweeter connector.

2. Check continuity between audio unit connector M12 and suspect front tweeter connector.

3. Check continuity between audio unit connector M12 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 M12 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 M12.

Audio unit

Front tweeter

Continuity

Connector

Terminal

Connector

Terminal

M12

2

M109 (LH)

1

Yes

3

2

11

M111 (RH)

1

12

2

Audio unit

Ground

Continuity

Connector

Terminal

M12

2

—

No

3

11

12

Audio unit connector M12

Condition

Reference value

(+)

(

−)

Terminal

Terminal

AV

FRONT TWEETER

AV-67

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO (FOR MEXICO)]

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-85, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-84, "Removal and Installation"

.

2

3

Audio signal output

11

12

SKIB3609E