Nissan Frontier. Manual - part 53

AV-204

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH AMPLIFIER]

FRONT TWEETER

FRONT TWEETER

Diagnosis Procedure

INFOID:0000000009482155

Regarding Wiring Diagram information, refer to 

AV-177, "Wiring Diagram"

.

1.

CONNECTOR CHECK

Check the audio unit, audio amplifier 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 amplifier connector B159 and suspect front tweeter connector.

2. Check continuity between audio amplifier connector B159 and suspect front tweeter connector.

3. Check continuity between audio amplifier connector B159 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 amplifier connector B159 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 amplifier connector B159.

Audio amplifier

Front tweeter

Continuity

Connector

Terminal

Connector

Terminal

B159

14

M109 (LH)

1

Yes

30

2

13

M111 (RH)

1

29

2

Audio amplifier

Ground

Continuity

Connector

Terminal

B159

14

—

No

30

13

29

Audio amplifier connector B159

Condition

Reference value

(+)

(

−)

Terminal

Terminal

AV

FRONT TWEETER

AV-205

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH AMPLIFIER]

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-235, "Removal and Installation"

.

NO

>> GO TO 4.

4.

CHECK PRE-AMP SIGNAL CIRCUIT CONTINUITY

1. Disconnect audio unit connector M46 and audio amplifier connector B159.

2. Check continuity between audio unit connector M46 and audio amplifier connector B159.

3. Check continuity between audio unit connector M46 and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness or connectors.

5.

CHECK PRE-AMP SIGNAL

1. Connect audio unit connector M46 and audio amplifier connector B159.

2. Turn ignition switch to ACC.

3. Push audio unit POWER switch.

4. Check signal between the terminals of audio unit connector M46.

Is the inspection result normal?

14

30

Audio signal output

13

29

SKIA0177E

Audio unit

Audio amplifier

Continuity

Connector

Terminal

Connector

Terminal

M46

2

B159

22

Yes

3

6

11

21

12

5

Audio unit

Ground

Continuity

Connector

Terminal

M46

2

—

No

3

11

12

Audio unit connector M46

Condition

Reference value

(+)

(

−)

Terminal

Terminal

2

3

Audio signal output

11

12

SKIA0177E

AV-206

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH AMPLIFIER]

FRONT TWEETER

YES

>> Replace audio amplifier. Refer to 

AV-234, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-233, "Removal and Installation"

.

AV

REAR DOOR SPEAKER

AV-207

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH AMPLIFIER]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

REAR DOOR SPEAKER

Diagnosis Procedure

INFOID:0000000009482156

Regarding Wiring Diagram information, refer to 

AV-177, "Wiring Diagram"

.

1.

CONNECTOR CHECK

Check the audio unit, audio amplifier 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 DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY

1. Disconnect audio amplifier connector B159 and suspect rear door speaker connector.

2. Check continuity between audio amplifier connector B159 and suspect rear door speaker connector.

3. Check continuity between audio amplifier connector B159 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness or connectors.

3.

CHECK REAR DOOR SPEAKER SIGNAL

1. Connect audio amplifier connector B159 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 amplifier connector B159.

Audio amplifier

Rear door speaker

Continuity

Connector

Terminal

Connector

Terminal

B159

11

D207 (LH)

1

Yes

27

2

12

D307 (RH)

1

28

2

Audio amplifier

Ground

Continuity

Connector

Terminal

B159

11

—

No

27

12

28

Audio amplifier connector B159

Condition

Reference value

(+)

(

−)

Terminal

Terminal