Nissan Frontier. Manual - part 33

AV-124

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITHOUT AMPLIFIER]

POWER SUPPLY AND GROUND CIRCUIT

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT CONTINUITY

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. 

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-125

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITHOUT AMPLIFIER]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

FRONT DOOR SPEAKER

Diagnosis Procedure

INFOID:0000000009482112

Regarding Wiring Diagram information, refer to 

AV-104, "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 M44 and suspect front door speaker connector.

2. Check continuity between audio unit connector M44 and suspect front door speaker connector.

3. Check continuity between audio unit connector M44 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 M44 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 M44.

Audio unit

Front door speaker

Continuity

Connector

Terminal

Connector

Terminal

M44

2

D12 (LH)

1

Yes

3

2

11

D112 (RH)

1

12

2

Audio unit

Ground

Continuity

Connector

Terminal

M44

2

—

No

3

11

12

Audio unit connector M44

Condition

Reference value

(+)

(

−)

Terminal

Terminal

AV-126

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITHOUT AMPLIFIER]

FRONT DOOR SPEAKER

Is the inspection result normal?

YES

>> Replace front door speaker. Refer to 

AV-148, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-146, "Removal and Installation"

.

2

3

Audio signal output

11

12

SKIB3609E

AV

FRONT TWEETER

AV-127

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITHOUT AMPLIFIER]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

FRONT TWEETER

Diagnosis Procedure

INFOID:0000000009482113

Regarding Wiring Diagram information, refer to 

AV-104, "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 M44 and suspect front tweeter connector.

2. Check continuity between audio unit connector M44 and suspect front tweeter connector.

3. Check continuity between audio unit connector M44 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 M44 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 M44.

Audio unit

Front tweeter

Continuity

Connector

Terminal

Connector

Terminal

M44

2

M109 (LH)

1

Yes

3

2

11

M111 (RH)

1

12

2

Audio unit

Ground

Continuity

Connector

Terminal

M44

2

—

No

3

11

12

Audio unit connector M44

Condition

Reference value

(+)

(

−)

Terminal

Terminal