Nissan Frontier. Manual - part 36

AV-136

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITHOUT AMPLIFIER]

MICROPHONE SIGNAL CIRCUIT

Is the inspection result normal?

YES

>> Replace Bluetooth

®

 control unit. Refer to 

AV-151, "Removal and Installation"

.

NO

>> Replace microphone. Refer to 

AV-153, "Removal and Installation"

.

Bluetooth

®

 control unit connector B141

Condition

Reference signal

(+)

(-)

Terminal

Terminal

7

8

Speak into microphone.

PKIB5037J

AV

USB CONNECTOR

AV-137

< DTC/CIRCUIT DIAGNOSIS >

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USB CONNECTOR

Diagnosis Procedure

INFOID:0000000009482118

Regarding Wiring Diagram information, refer to 

AV-104, "Wiring Diagram"

.

1.

CHECK USB INTERFACE HARNESS CONTINUITY

1. Turn ignition switch OFF.

2. Disconnect audio unit connector M64 and USB interface connector M214.

3. Check continuity between audio unit connector M64 and USB interface connector M214.

4. Check continuity between audio unit connector M64 and ground.

Is the inspection result normal?

YES

>> Replace the USB interface. Refer to 

AV-157, "Removal and Installation"

.

NO

>> Repair or replace harness or connectors.

Audio unit

USB interface 

Continuity

Connector

Terminal

Connector

Terminal

M64

53

M214

4

Yes

54

1

55

2

56

3

57

5

Audio unit

—

Continuity

Connector

Terminal

M64

54

Ground

No

57

AV-138

< SYMPTOM DIAGNOSIS >

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AUDIO SYSTEM

SYMPTOM DIAGNOSIS

AUDIO SYSTEM

Symptom Table

INFOID:0000000009482119

RELATED TO AUDIO

Symptoms

Check items

Probable malfunction location

The disk cannot be removed.

Audio unit

Malfunction in audio unit.
Refer to 

AV-94, "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-104, "Wiring Diagram"

.

• Audio unit power supply and ground cir-

cuits malfunction.
Refer to 

AV-122, "AUDIO UNIT : Diagno-

sis Procedure"

.

Only a certain speaker (front door speaker 
LH, front door speaker RH, front tweeter 
LH, front tweeter 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-125, "Diagnosis Procedure"

 (front 

door speaker).

-

AV-127, "Diagnosis Procedure"

 (front 

tweeter).

-

AV-129, "Diagnosis Procedure"

 (rear 

door speaker).

• Malfunction in speaker.

Refer to:

-

AV-148, "Removal and Installation"

 (front 

door speaker).

-

AV-147, "Removal and Installation"

 (front 

tweeter).

-

AV-149, "Removal and Installation"

 (rear 

door speaker).

• Malfunction in audio unit.

Refer to 

AV-94, "On Board Diagnosis 

Function"

.

AV

AUDIO SYSTEM

AV-139

< SYMPTOM DIAGNOSIS >

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RELATED TO HANDS-FREE PHONE

• Before performing diagnosis, confirm that the cellular phone being used by the customer is compatible with

the vehicle.

• It is possible that a malfunction is occurring due to a version change of the phone even though the phone is

a compatible type. This can be confirmed by changing the cellular phone to another compatible type, and

check that it operates normally. It is important to determine whether the cause of the malfunction is the vehi-

cle or the cellular phone.

Check Compatibility

1. Make sure the customer’s Bluetooth

®

 related concern is understood.

2. Verify the customer’s concern.

NOTE:

The customer’s phone may be required, depending upon their concern.

Noise is mixed with audio.

Noise comes out from all speakers.

Malfunction in audio unit.
Refer to 

AV-94, "On Board Diagnosis Func-

tion"

.

Noise comes out only from a certain speak-
er (front door speaker LH, front door speak-
er RH, front tweeter LH, front tweeter 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-125, "Diagnosis Procedure"

 (front 

door speaker).

-

AV-127, "Diagnosis Procedure"

 (front 

tweeter).

-

AV-129, "Diagnosis Procedure"

 (rear 

door speaker).

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

lash and looseness).
Refer to:

-

AV-148, "Removal and Installation"

 (front 

door speaker).

-

AV-147, "Removal and Installation"

 (front 

tweeter).

-

AV-149, "Removal and Installation"

 (rear 

door speaker).

• Malfunction in audio unit.

Refer to 

AV-94, "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-154, "Location of Antenna"

.

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).

• Rod antenna is not fully connected to an-

tenna base.

• Antenna base/rod connection (thread 

zone) has foreign material or corrosion 
inside.

• Poor connector connection of antenna or 

antenna feeder.

Refer to 

AV-154, "Location of Antenna"

.

No satellite radio reception.

Satellite radio antenna malfunction.

• Poor continuity in antenna feeder.
• Poor connector connection of antenna or 

antenna feeder.

• Loose satellite radio antenna mounting 

nut.
Refer to 

AV-154, "Location of Antenna"

.

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