Nissan Titan A60. Manual - part 72

AV

FRONT DOOR SPEAKER

AV-113

< DTC/CIRCUIT DIAGNOSIS >

[PREMIUM WITHOUT NAVIGATION]

C

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G

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B

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FRONT DOOR SPEAKER

Description

INFOID:0000000006166506

The audio unit sends audio signals to the audio amp. The audio amp. amplifies the audio signals before send-

ing them to the front door speakers using the audio signal circuits.

Diagnosis Procedure

INFOID:0000000006166507

Regarding Wiring Diagram information, refer to 

AV-151, "Wiring Diagram - Without Navigation System"

.

1.

SPEAKER HARNESS CHECK

1. Disconnect audio amp. connector M113 and suspect speaker

connector.

2. Check continuity between audio amp. harness connector M113

(A) and suspect speaker harness connector (B).

3. Check continuity between audio amp. harness connector M113

(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.

FRONT DOOR SPEAKER SIGNAL CHECK

A B

Continuity

Connector

Terminal

Connector

Terminal

M113

15

D12

1

Yes

31

2

16

D112

1

32

2

A

—

Continuity

Connector

Terminal

M113

15

Ground

No

31

16

32

ALNIA0718GB

AV-114

< DTC/CIRCUIT DIAGNOSIS >

[PREMIUM WITHOUT NAVIGATION]

FRONT DOOR SPEAKER

1. Connect audio amp. connector M113 and suspect speaker con-

nector.

2. Turn ignition switch to ACC.

3. Push “POWER” switch.

4. Check the signal between audio amp. harness connector M113

terminals with CONSULT-III or oscilloscope.

Is audio signal voltage as specified?

YES

>> Replace suspect speaker. Refer to 

AV-178, "Removal

and Installation"

.

NO

>> GO TO 3.

3.

PRE-AMP HARNESS CHECK

1. Disconnect audio unit connector M171 and audio amp. connec-

tor M113.

2. Check continuity between audio unit harness connector M171

(A) and audio amp. harness connector M113 (B).

3. Check continuity between audio unit harness connector M171

(A) and ground.

Are 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

Connec-

tor

Terminal

Condition

Reference

signal

(+)

(-)

M113

15

31

Receive 
audio sig-
nal

16

32

ALNIA0719GB

SKIA0177E

A

B

Continuity

Connector

Terminal

Connector

Terminal

M171

1

M113

6

Yes

2

22

3

5

4

21

A 

—

Continuity

Connector

Terminal

M171

1

Ground

No

2

3

4

ALNIA0720GB

AV

FRONT DOOR SPEAKER

AV-115

< DTC/CIRCUIT DIAGNOSIS >

[PREMIUM WITHOUT NAVIGATION]

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1. Connect audio unit connector and audio amp. connector.

2. Turn ignition switch ACC.

3. Push “POWER” switch.

4. Check the signal between audio unit harness connector M171

terminals with CONSULT-III or oscilloscope.

Are the audio signal voltage readings as specified?

YES

>> Replace audio amp. Refer to 

AV-183, "Removal and

Installation"

.

NO

>> Replace audio unit. Refer to 

AV-175, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M171

2

1

Receive 
audio sig-
nal

4

3

AWNIA1615ZZ

SKIA0177E

AV-116

< DTC/CIRCUIT DIAGNOSIS >

[PREMIUM WITHOUT NAVIGATION]

FRONT TWEETER

FRONT TWEETER

Description

INFOID:0000000006166508

The audio unit sends audio signals to the audio amp. The audio amp. amplifies the audio signals before send-

ing them to the tweeters using the audio signal circuits.

Diagnosis Procedure

INFOID:0000000006166509

Regarding Wiring Diagram information, refer to 

AV-151, "Wiring Diagram - Without Navigation System"

.

1.

HARNESS CHECK

1. Disconnect audio amp. connector M113 and suspect tweeter

connector.

2. Check continuity between audio amp. harness connector M113

(A) and suspect tweeter harness connector (B).

3. Check continuity between audio amp. harness connector M113

(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.

FRONT TWEETER SIGNAL CHECK

A B

Continuity

Connector

Terminal

Connector

Terminal

M113

14

M109

1

Yes

30

2

13

M111

1

29

2

A

—

Continuity

Connector

Terminal

M113

14

Ground

No

30

13

29

ALNIA0722GB