Nissan Teana J32. Manual - part 44

AV

AUDIO UNIT

AV-31

< ECU DIAGNOSIS >

[AUDIO SYSTEM]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

JCNWM0879GB

AV-32

< ECU DIAGNOSIS >

[AUDIO SYSTEM]

AUDIO UNIT

JCNWM0880GB

AV

AUDIO UNIT

AV-33

< ECU DIAGNOSIS >

[AUDIO SYSTEM]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

JCNWM0881GB

AV-34

< SYMPTOM DIAGNOSIS >

[AUDIO SYSTEM]

AUDIO SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

AUDIO SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000003765605

RELATED TO AUDIO

RELATED TO STEERING SWITCH

Symptoms

Check items

Possible malfunction location / Action to take

Audio sound is not heard.

No sound from all speakers.

Audio unit malfunction. 
Refer to 

AV-37, "Exploded View"

.

There is no sound from one of speakers.

Sound signal malfunction between audio unit and speaker 
on the side where there is no sound.

AM/FM radio is not received.

Other audio sounds are normal.

• Antenna amp. ON signal circuit
• Antenna feeder
• Glass antenna

Audio display does not work.

—

• Audio display power supply and ground circuits.
• AV communication circuits between audio unit and au-

dio display.

Symptoms

Inspection location / Probable malfunction location

None of the steering switch operations work.

Steering switch signal GND circuit
Refer to 

AV-24, "Diagnosis Procedure"

.

Only specified switch (1) cannot be operated.

Steering switch
Refer to 

AV-42, "Exploded View"

.

“SOURCE”, “SEEK UP”, “SEEK DOWN” switches of steering 
switch are not operational.

Steering switch signal A circuit
Refer to 

AV-20, "Diagnosis Procedure"

.

”VOL UP“, “VOL DOWN” switches of steering switch are not 
operational.

Steering switch signal B circuit
Refer to 

AV-22, "Diagnosis Procedure"

.