Nissan Altima HL32 Hybrid. Manual - part 19

AV-68

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

POWER SUPPLY AND GROUND CIRCUIT

COMPONENT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

AUDIO UNIT
AUDIO UNIT : Diagnosis Procedure

INFOID:0000000004219437

1.

CHECK FUSE

Check that the following fuses of the audio unit are not blown.

Are the fuses OK?

YES

>> GO TO 2

NO

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

2.

AUDIO UNIT POWER SUPPLY CIRCUIT CHECK

1. Disconnect audio unit connector. 

2. Check voltage between the audio unit and ground.

Are the voltage readings as specified?

YES

>> GO TO 3

NO

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

• Repair harness or connector.

3.

GROUND CIRCUIT CHECK

Inspect audio unit case ground.
Does case ground pass inspection?

YES

>> Inspection End.

NO

>> Repair audio unit case ground.

BOSE SPEAKER AMP
BOSE SPEAKER AMP : Diagnosis Procedure

INFOID:0000000004219438

1.

CHECK FUSE

Check for blown fuses.

Are the fuses OK?

YES

>> GO TO 2

NO

>> Be sure to eliminate cause of malfunction before installing new fuse.

2.

CHECK POWER SUPPLY CIRCUIT

Unit

Terminals

Signal name

Fuse No.

Audio unit

19

Battery power

24

7

Ignition switch ACC or ON

19

Unit

Terminal No.

OFF

ACC

ON

(+)

(-)

Connector

Terminal

Audio unit

M43

19

Ground

Battery 
voltage

Battery 
voltage

Battery 
voltage

7

Ground

0V

Battery 
voltage

Battery 
voltage

WKIA5345E

Unit

Terminals

Signal name

Fuse No.

BOSE speaker amp.

50

Battery power

25

51

26

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-69

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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1. Turn ignition switch OFF.

2. Disconnect BOSE speaker amp connector.

3. Check voltage between BOSE speaker amp harness connector

and ground.

Is battery voltage present?

YES

>> GO TO 3

NO

>> Check harness between BOSE speaker amp and fuse.

3.

CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BOSE speaker amp connector.

3. Check continuity between BOSE speaker amp harness connec-

tor and ground.

Does continuity exist?

YES

>> Inspection End.

NO

>> Repair harness or connector.

SATELLITE RADIO TUNER
SATELLITE RADIO TUNER : Diagnosis Procedure

INFOID:0000000004219439

1.

CHECK FUSES

Check that the following fuses are not blown.

Are the fuses OK?

YES

>> GO TO 2

NO

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

2.

POWER SUPPLY CIRCUIT CHECK

Unit

Terminal No. 

Voltage 

(approx.)

(+)

(-)

Connector

Terminal

BOSE 

speaker 

amp

B122

50

Ground

Battery 
voltage

51

ALNIA0128ZZ

Unit

Terminal No. 

Continuity

(+)

(-)

Connector

Terminal

BOSE 

speaker 

amp

B122

47

Ground

Yes

52

ALNIA0129ZZ

Unit

Terminals

Signal name

Fuse No.

Satellite radio tuner (factory in-
stalled)

32

Battery power

24

36

Ignition switch ACC or ON

19

AV-70

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

POWER SUPPLY AND GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect satellite radio tuner (factory installed) connector

B123. 

3. Check voltage between the satellite radio tuner (factory

installed) and ground.

Are the voltage results as specified?

YES

>> GO TO 3

NO

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

• Repair harness or connector.

3.

GROUND CIRCUIT CHECK

Inspect satellite radio tuner (factory installed) case ground.
Does case ground pass inspection?

YES

>> Inspection End.

NO

>> Repair satellite radio tuner (factory installed) case ground.

BLUETOOTH CONTROL UNIT
BLUETOOTH CONTROL UNIT : Diagnosis Procedure

INFOID:0000000004219440

1.

CHECK FUSE

Check that the following fuses of the Bluetooth control unit are not blown.

Are the fuses OK?

YES

>> GO TO 2

NO

>> Be sure to eliminate cause of malfunction before installing new fuse. 

2.

CHECK POWER SUPPLY CIRCUIT

Check voltage between Bluetooth control unit harness connector

and ground.

Are the voltage results as specified?

YES

>> GO TO 3

NO

>> Check harness between Bluetooth control unit and fuse.

Unit

Terminal No.

OFF

ACC

ON

(+)

(-)

Connector

Terminal

Satellite 
radio tuner 
(factory in-
stalled)

B123

32

Ground

Battery 
voltage

Battery 
voltage

Battery 
voltage

36

Ground

0V

Battery 
voltage

Battery 
voltage

WKIA4539E

Power source

Fuse No.

Battery

24

Ignition switch ACC or ON

19

Ignition switch ON or START 

3

Signal name

Connector 

No.

Terminal No.

Ignition 

switch posi-

tion

Value (Ap-

prox.)

Battery pow-

er supply

B126

1

OFF

Battery volt-

age

ACC power 

supply

2

ACC

Ignition sig-

nal

3

ON

WKIA4389E

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-71

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

C

D

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F

G

H

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M

B

A

O

P

3.

CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect Bluetooth control unit connector B126.

3. Check continuity between Bluetooth control unit harness con-

nector and ground.

Does continuity exist?

YES

>> Inspection End.

NO

>> Repair harness or connector.

MICROPHONE
MICROPHONE : Diagnosis Procedure

INFOID:0000000004219441

1.

CHECK POWER SUPPLY CIRCUIT (MICROPHONE SIDE)

Check voltage between microphone harness connector and ground.

Is proper voltage present?

YES

>> GO TO 4

NO

>> GO TO 2

2.

CHECK POWER SUPPLY CIRCUIT (CONTINUITY)

1. Turn ignition switch OFF.

2. Disconnect Bluetooth control unit and microphone connectors.

3. Check continuity between microphone harness connector R7

(A) terminal 4 and Bluetooth control unit harness connector

B126 (B) terminal 29. 

4. Check continuity between microphone harness connector R7

(A) terminal 4 and ground. 

Are continuity results as specified?

YES

>> GO TO 3

NO

>> Repair harness or connector.

3.

CHECK POWER SUPPLY CIRCUIT (BLUETOOTH CONTROL UNIT SIDE)

Unit

Terminal No.

Continuity 

(+)

(-)

Connector

Terminal

Ground

B126

4

Ground

Yes

24

ALNIA0130ZZ

Signal name

Connector 

No.

Terminal No.

Ignition 

switch posi-

tion

Value (Ap-

prox.)

Microphone 

VCC signal

R7

4

ON

5V

WKIA5796E

Signal name

Continuity

Microphone VCC signal

Continuity should exist.

Signal name

Continuity

Microphone VCC signal

Continuity should not exist.

ALNIA0132ZZ