Nissan Sentra. Manual - part 45

AV-172

< BASIC INSPECTION >

[DISPLAY AUDIO WITH BOSE]

DIAGNOSIS AND REPAIR WORKFLOW

Is malfunctioning part detected?

YES

>> GO TO 4

NO

>> GO TO 2

4.

REPAIR OR REPLACE THE MALFUNCTIONING PART

1. Repair or replace the malfunctioning part.

2. Reconnect parts or connectors disconnected during Diagnostic Procedure.

>> GO TO 5

5.

FINAL CHECK

Refer to confirmed symptom in step 2, and make sure that the symptom is not detected.
Was the repair confirmed?

YES

>> Inspection End.

NO

>> GO TO 2

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-173

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH BOSE]

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DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

AUDIO UNIT
AUDIO UNIT : Diagnosis Procedure

INFOID:0000000009758896

Regarding Wiring Diagram information, refer to 

AV-157, "Wiring Diagram"

.

1.

CHECK FUSE

Check that the following fuses are not blown.

Are the fuses blown?

YES

>> Replace the blown fuse after repairing the affected circuit.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect audio unit connector M94.

3. Check voltage between audio unit connector M94 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect audio unit connector M95.

3. Check continuity between audio unit connectors and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

BOSE SPEAKER AMP
BOSE SPEAKER AMP : Diagnosis Procedure

INFOID:0000000009758897

Regarding Wiring Diagram information, refer to 

AV-157, "Wiring Diagram"

.

Terminal No.

Signal name

Fuse No.

7

ACC power supply

18 (10A)

19

Battery power supply

26 (15A)

Audio unit

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M94

7

—

Ignition switch: ON

Battery voltage

19

Ignition switch: OFF

Audio unit

Ground

Continuity 

Connector

Terminal

M94

20

—

Yes

M95

46

47

AV-174

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH BOSE]

POWER SUPPLY AND GROUND CIRCUIT

1.

CHECK FUSE

Check that the following fuses are not blown.

Are the fuses blown?

YES

>> Replace the blown fuse after repairing the affected circuit.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect Bose speaker amp. connector B44.

3. Check voltage between Bose speaker amp. connector B44 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect Bose speaker amp. connector B44.

3. Check continuity between Bose speaker amp. connector B44 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

BLUETOOTH® CONTROL UNIT
BLUETOOTH® CONTROL UNIT : Diagnosis Procedure

INFOID:0000000009758898

Regarding Wiring Diagram information, refer to 

AV-157, "Wiring Diagram"

.

1.

CHECK FUSE

Check that the following fuses are not blown.

Are the fuses blown?

Terminal No.

Signal name

Fuse No.

27

Battery power supply

23 (15A)

28

24 (15A)

Bose speaker amp.

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

B44

27

—

Ignition switch: OFF

Battery voltage

28

Bose speaker amp.

Ground

Continuity 

Connector

Terminal

B44

26

—

Yes

31

Terminal No.

Signal name

Fuse No.

1

Battery power supply

26 (15A)

2

ACC power supply

18 (10A)

3

Ignition signal

5 (10A)

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-175

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH BOSE]

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YES

>> Replace the blown fuse after repairing the affected circuit.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.
2. Disconnect Bluetooth

®

 control unit connector M45.

3. Check voltage between Bluetooth

®

 control unit connector M45 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.
2. Check continuity between Bluetooth

®

 control unit connector M45 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

Bluetooth

®

 control unit

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M45

1

—

Ignition switch: OFF

Battery voltage

2

Ignition switch: ACC

3

Ignition switch: ON

Bluetooth

®

 control unit

Ground

Continuity 

Connector

Terminal

M45

4

—

Yes

21

22

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