Nissan Note E12. Manual - part 9

AV-28

< DTC/CIRCUIT DIAGNOSIS >

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REAR DOOR SPEAKER

REAR DOOR SPEAKER

Diagnosis Procedure

INFOID:0000000009460118

Regarding Wiring Diagram information, refer to 

AV-16, "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 REAR 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 REAR 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-29

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Is the inspection result normal?

YES

>> Replace rear door speaker. Refer to 

AV-35, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-33, "Removal and Installation"

.

4

5

Audio signal output

13

14

SKIB3609E

AV-30

< SYMPTOM DIAGNOSIS >

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AUDIO SYSTEM

SYMPTOM DIAGNOSIS

AUDIO SYSTEM

Symptom Table

INFOID:0000000009460123

RELATED TO AUDIO

Symptoms

Check items

Probable malfunction location

The disk cannot be removed.

Audio unit

Malfunction in audio unit.
Refer to 

AV-11, "On Board Diagnosis Func-

tion"

.

No sound comes out or the level of the 
sound is low.

No sound from all speakers.

• Speaker circuit shorted to ground.

Refer to 

AV-16, "Wiring Diagram"

.

• Audio unit power supply and ground cir-

cuits malfunction.
Refer to 

AV-25, "AUDIO UNIT : Diagno-

sis Procedure"

.

Only a certain speaker (front door speaker 
LH, front door speaker RH, rear door 
speaker LH, rear door speaker RH) does 
not output sound.

• Poor connector connection of speaker.
• Sound signal circuit malfunction between 

audio unit and speaker.
Refer to:

-

AV-26, "Diagnosis Procedure"

 (front door 

speaker).

-

AV-28, "Diagnosis Procedure"

 (rear door 

speaker).

• Malfunction in speaker.

Refer to:

-

AV-34, "Removal and Installation"

 (front 

door speaker).

-

AV-35, "Removal and Installation"

 (rear 

door speaker).

• Malfunction in audio unit.

Refer to 

AV-11, "On Board Diagnosis 

Function"

.

Noise is mixed with audio.

Noise comes out from all speakers.

Malfunction in audio unit.
Refer to 

AV-11, "On Board Diagnosis Func-

tion"

.

Noise comes out only from a certain speak-
er (front door speaker LH, front door speak-
er RH, rear door speaker LH, rear door 
speaker RH).

• Poor connector connection of speaker.
• Sound signal circuit malfunction between 

audio unit and speaker.
Refer to:

-

AV-26, "Diagnosis Procedure"

 (front door 

speaker).

-

AV-28, "Diagnosis Procedure"

 (rear door 

speaker).

• Malfunction in speaker.
• Poor Installation of speaker (e.g. back-

lash and looseness).
Refer to:

-

AV-34, "Removal and Installation"

 (front 

door speaker).

-

AV-35, "Removal and Installation"

 (rear 

door speaker).

• Malfunction in audio unit.

Refer to 

AV-11, "On Board Diagnosis 

Function"

.

Noise is mixed with radio only (when the ve-
hicle hits a bump or while driving over bad 
roads)

Poor connector connection of antenna or 
antenna feeder.
Refer to 

AV-37, "Feeder Layout"

.

AV

AUDIO SYSTEM

AV-31

< SYMPTOM DIAGNOSIS >

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No radio reception or poor reception.

• Other audio sounds are normal.
• Any radio station cannot be received or 

poor reception is caused even after mov-
ing to a service area with good reception 
(e.g. a place with clear view and no ob-
stacles generating external noises).

• Antenna amp. ON signal circuit malfunc-

tion.
Refer to 

AV-14, "Reference Value"

.

• Poor connector connection of antenna or 

antenna feeder.
Refer to 

AV-37, "Feeder Layout"

.

Buzz/rattle sound from speaker

The majority of buzz/rattle sounds are not 
indicative of an issue with the speaker, usu-
ally something nearby the speaker is caus-
ing the buzz/rattle.

Refer to "SQUEAK AND RATTLE TROU-
BLE DIAGNOSIS" in the appropriate interi-
or trim section.

Symptoms

Check items

Probable malfunction location