Nissan Frontier D40. Manual - part 14

AV-48

< COMPONENT DIAGNOSIS >

[PREMIUM AUDIO (KING CAB)]

FRONT DOOR SPEAKER

1.

Connect audio unit connector and suspect speaker connector.

2.

Turn ignition switch ACC.

3.

Push “POWER” switch.

4.

Check the signal between audio unit harness connector M64
terminals with CONSULT-III or oscilloscope.

Are the audio signal voltage readings as specified?

YES

>> Replace suspect speaker. Refer to 

AV-86, "Removal

and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-84, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M64

2

1

Receive 
audio sig-
nal

4

3

AWNIA1803ZZ

SKIA0177E

AV

FRONT TWEETER

AV-49

< COMPONENT DIAGNOSIS >

[PREMIUM AUDIO (KING CAB)]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

FRONT TWEETER

Description

INFOID:0000000005274898

The audio unit sends audio signals to the tweeters using the audio signal circuits.

Diagnosis Procedure

INFOID:0000000005274899

Regarding Wiring Diagram information, refer to 

AV-65, "Wiring Diagram"

.

1.

SPEAKER HARNESS CHECK

1.

Disconnect audio unit connector M64 and suspect speaker con-
nector.

2.

Check continuity between audio unit harness connector M64 (A)
and suspect speaker harness connector (B).

3.

Check continuity between audio unit harness connector M64 (A)
and ground.

Are continuity test results as specified?

YES

>> GO TO 2

NO

>> • Check connector housings for disconnected or loose terminals.

• Repair harness or connector.

2.

SPEAKER SIGNAL CHECK

A

B

Continuity

Connector

Terminal

Connector

Terminal

M64

1

M110

2

Yes

2

1

3

M112

2

4

1

A 

—

Continuity

Connector

Terminal

M64

1

Ground

No

2

3

4

AWNIA0849ZZ

AV-50

< COMPONENT DIAGNOSIS >

[PREMIUM AUDIO (KING CAB)]

FRONT TWEETER

1.

Connect audio unit connector and suspect speaker connector.

2.

Turn ignition switch ACC.

3.

Push “POWER” switch.

4.

Check the signal between audio unit harness connector M64
terminals with CONSULT-III or oscilloscope.

Are the audio signal voltage readings as specified?

YES

>> Replace suspect speaker. Refer to 

AV-85, "Removal

and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-84, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M64

2

1

Receive 
audio sig-
nal

4

3

AWNIA1803ZZ

SKIA0177E

AV

REAR DOOR SPEAKER

AV-51

< COMPONENT DIAGNOSIS >

[PREMIUM AUDIO (KING CAB)]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

REAR DOOR SPEAKER

Description

INFOID:0000000005274900

The audio unit sends audio signals to the rear door speakers using the audio signal circuits.

Diagnosis Procedure

INFOID:0000000005274901

Regarding Wiring Diagram information, refer to 

AV-65, "Wiring Diagram"

.

1.

SPEAKER HARNESS CHECK

1.

Disconnect audio unit connector M44 and the suspect speaker
connector.

2.

Check continuity between audio unit harness connector M44 (A)
and suspect speaker harness connector (B).

3.

Check continuity between audio unit harness connector M44 (A)
and ground.

Are the continuity test results as specified?

YES

>> GO TO 2

NO

>> • Check connector housings for disconnected or loose terminals.

• Repair harness or connector.

2.

SPEAKER SIGNAL CHECK

A

B 

Continuity

Connector

Terminal

Connector

Terminal

M44

13

B75

2

Yes

14

1

15

B150

2

16

1

A

—

Continuity

Connector

Terminal

M44

13

Ground

No

14

15

16

AWNIA0851ZZ