Nissan Altima HL32 Hybrid. Manual - part 58

AV-224

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

SUBWOOFER

SUBWOOFER

Description

INFOID:0000000004219585

The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio

signals before sending them to the woofers using the audio signal circuits.

Diagnosis Procedure

INFOID:0000000004219586

1.

HARNESS CHECK

1. Disconnect BOSE speaker amp. connector B122 and suspect

rear subwoofer connector.

2. Check continuity between BOSE speaker amp. harness connec-

tor B122 (A) and suspect rear subwoofer harness connector (B).

3. Check continuity between BOSE speaker amp. harness connec-

tor B122 (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.

REAR SUBWOOFER SIGNAL CHECK

Terminals

Continuity

A B 

Connector

Terminal

Connector

Terminal

B122

53

B120

1

Yes

48

2

45

B124

1

46

2

Terminals

Continuity

A

—

Connector

Terminal

B122

53

Ground

No

48

45

46

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AV

SUBWOOFER

AV-225

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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1. Connect BOSE speaker amp. connector B122 and suspect rear

subwoofer connector.

2. Turn ignition switch to ACC.

3. Push “POWER” switch.

4. Check the signal between BOSE speaker amp. harness connec-

tor B122 terminals with CONSULT-III or oscilloscope.

Is the audio signal voltage as specified?

YES

>> Replace suspect rear subwoofer. Refer to 

AV-285,

"Removal and Installation"

.

NO

>> GO TO 3

3.

HARNESS CHECK

1. Disconnect AV control unit connector M47 and BOSE speaker amp. connector B121.

2. Check continuity between AV control unit harness connector

M47 (A) and BOSE speaker amp. harness connector B121 (B).

3. Check continuity between AV control unit harness connector

M47 (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.

REAR SUBWOOFER SIGNAL CHECK

Connector

Terminals

Condition

Reference

signal

(+)

(-)

B122

53

48

Receive au-
dio signal

45

46

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SKIA0177E

A

B. 

Continuity

Connector

Terminal

Connector

Terminal

M47

5

B121

64

Yes

6

63

14

66

15

65

A

—

Continuity

Connector

Terminal

M47

5

Ground

No

6

14

15

ALLIA0253ZZ

AV-226

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

SUBWOOFER

1. Connect AV control unit connector M47 and BOSE speaker

amp. connector B121.

2. Turn ignition switch to ACC.

3. Push “POWER” switch.

4. Check the signal between AV control unit harness connector

M47 terminals with CONSULT-III or oscilloscope.

Are the audio signal voltage readings as specified?

YES

>> Replace BOSE speaker amp. Refer to 

AV-279,

"Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-278, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M47

5

6

Receive audio 
signal

14

15

ALNIA0172ZZ

SKIA0177E

AV

AMP ON SIGNAL CIRCUIT

AV-227

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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AMP ON SIGNAL CIRCUIT

Description

INFOID:0000000004219587

When the audio system is turned on, a voltage signal is supplied from the AV control unit to the BOSE speaker

amp. When this signal is received, the BOSE speaker amp. will turn on.

Diagnosis Procedure

INFOID:0000000004219588

1.

CHECK AMP ON SIGNAL (BOSE SPEAKER AMP)

1. Turn audio system ON.

2. Check voltage between BOSE speaker amp. harness connector

B121 terminal 60 and ground.

Is voltage greater than 6.5V?

YES

>> Inspection End.

NO

>> GO TO 2

2.

CHECK AMP ON SIGNAL (AV CONTROL UNIT)

Check voltage between AV control unit harness connector M47 ter-

minal 16 and ground.

Is voltage approximately 6.5 volts?

YES

>> Repair harness or connector.

NO

>> Replace AV control unit. Refer to 

AV-278, "Removal and

Installation"

.

60 - Ground

: More than approx. 6.5V

ALNIA0147ZZ

16 - Ground

: More than approx. 6.5V

ALLIA0254ZZ