Nissan Frontier D40. Manual - part 33

 

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Nissan Frontier D40. Manual - part 33

 

 

AV-124

< COMPONENT DIAGNOSIS >

[PREMIUM AUDIO (CREW CAB)]

REAR DOOR TWEETER

1.

Connect audio unit connector M66 and audio amp. connector
B159.

2.

Turn ignition switch to ACC.

3.

Push “POWER” switch.

4.

Check the signal between audio unit harness connector M66
terminals with CONSULT-III or oscilloscope.

Is the audio signal voltage reading as specified?

YES

>> Replace audio amp. Refer to 

AV-167, "Removal and

Installation"

.

NO

>> Replace audio unit. Refer to 

AV-166, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M66

14

13

Receive 
audio sig-
nal

16

15

AWNIA1804ZZ

SKIA0177E

AV

SUBWOOFER

AV-125

< COMPONENT DIAGNOSIS >

[PREMIUM AUDIO (CREW CAB)]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

SUBWOOFER

Description

INFOID:0000000005274955

The audio unit sends audio signals to the audio amp. The audio amp. amplifies the audio signals before send-
ing them to the subwoofer using the audio signal circuits.

Diagnosis Procedure

INFOID:0000000005274956

Regarding Wiring Diagram information, refer to 

AV-141, "Wiring Diagram"

.

1.

SPEAKER HARNESS CHECK

1.

Disconnect audio amp. connector B158 and subwoofer connec-
tor B72.

2.

Check continuity between audio amp. harness connector B158
(A) and subwoofer harness connector B72 (B).

3.

Check continuity between audio amp. harness connector B158 (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

B158

2

B72

1

Yes

18

2

3

3

19

4

A

Continuity

Connector

Terminal

B158

2

Ground

No

18

3

19

AWNIA1806ZZ

AV-126

< COMPONENT DIAGNOSIS >

[PREMIUM AUDIO (CREW CAB)]

SUBWOOFER

1.

Connect audio amp. connector B158 and subwoofer connector
B72.

2.

Turn ignition switch to ACC.

3.

Push “POWER” switch.

4.

Check the signal between audio amp. harness connector B158
terminals with CONSULT-III or oscilloscope.

Is the audio signal voltage as specified?

YES

>> Replace subwoofer. Refer to 

AV-173, "Removal and

Installation"

.

NO

>> GO TO 3

3.

PRE-AMP HARNESS CHECK

1.

Disconnect audio unit connector M66 and audio amp. connector
B159.

2.

Check continuity between audio unit harness connector M66 (A)
and audio amp. harness connector B159 (B).

3.

Check continuity between audio unit harness connector M66 (A)
and ground.

Are the continuity test results as specified?

YES

>> GO TO 4

NO

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

• Repair harness or connector.

4.

PRE-AMP SIGNAL CHECK

Connector

Terminals

Condition

Reference

signal

(+)

(-)

B158

2

18

Receive au-

dio signal

3

19

ALNIA0732GB

SKIA0177E

A

Continuity

Connector

Terminal

Connector

Terminal

M66

13

B159

8

Yes

14

24

15

7

16

23

A

Continuity

Connector

Terminal

M66

13

Ground

No

14

15

16

ALNIA0729GB

AV

SUBWOOFER

AV-127

< COMPONENT DIAGNOSIS >

[PREMIUM AUDIO (CREW CAB)]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

1.

Connect audio unit connector M66 and audio amp. connector
B159.

2.

Turn ignition switch to ACC.

3.

Push “POWER” switch.

4.

Check the signal between audio unit harness connector M66
terminals with CONSULT-III or oscilloscope.

Is the audio signal voltage reading as specified?

YES

>> Replace audio amp. Refer to 

AV-167, "Removal and

Installation"

.

NO

>> Replace audio unit. Refer to 

AV-166, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M66

14

13

Receive 
audio sig-
nal

16

15

AWNIA1804ZZ

SKIA0177E

 

 

 

 

 

 

 

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