Nissan Frontier. Instruction - part 52

AV-200

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH AMPLIFIER]

POWER SUPPLY AND GROUND CIRCUIT

4. Check continuity between microphone connector R8 and ground. 

Is the inspection result normal?

YES

>> Replace the Bluetooth

®

 control unit. Refer to 

AV-151, "Removal and Installation"

.

NO

>> Repair or replace harness or connectors.

3.

CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.
2. Disconnect microphone connector and Bluetooth

®

 control unit connector B141.

3. Check continuity between microphone connector R8 and Bluetooth

®

 control unit connector B141. 

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

Microphone

Bluetooth

®

 control unit

Continuity

Connector

Terminal

Connector

Terminal

R8

4

B141

29

Yes

Microphone

—

Continuity

Connector

Terminal

R8

4

Ground

No

Microphone

Bluetooth

®

 control unit

Continuity

Connector

Terminal

Connector

Terminal

R8

2

B141

8

Yes

AV

FRONT DOOR SPEAKER

AV-201

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH AMPLIFIER]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

FRONT DOOR SPEAKER

Diagnosis Procedure

INFOID:0000000009482154

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 DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY

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

2. Check continuity between audio amplifier connector B159 and suspect front 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 FRONT DOOR SPEAKER SIGNAL

1. Connect audio amplifier connector B159 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 amplifier connector B159.

Audio amplifier

Front door speaker

Continuity

Connector

Terminal

Connector

Terminal

B159

15

D12 (LH)

1

Yes

31

2

16

D112 (RH)

1

32

2

Audio amplifier

Ground

Continuity

Connector

Terminal

B159

15

—

No

31

16

32

Audio amplifier connector B159

Condition

Reference value

(+)

(

−)

Terminal

Terminal

AV-202

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH AMPLIFIER]

FRONT DOOR SPEAKER

Is the inspection result normal?

YES

>> Replace front door speaker. Refer to 

AV-236, "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?

15

31

Audio signal output

16

32

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

FRONT DOOR SPEAKER

AV-203

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH AMPLIFIER]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

YES

>> Replace audio amplifier. Refer to 

AV-234, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-233, "Removal and Installation"

.