Nissan Sentra. Manual - part 49

AV-188

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH BOSE]

AMP ON SIGNAL CIRCUIT

AMP ON SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009758903

Regarding Wiring Diagram information, refer to 

AV-157, "Wiring Diagram"

.

1.

CHECK CONTINUITY BETWEEN AUDIO UNIT AND BOSE SPEAKER AMP.

1. Turn ignition switch OFF.

2. Disconnect audio unit connector M94 and Bose speaker amp. connector B43.

3. Check continuity between audio unit connector M94 and Bose speaker amp. connector B43.

4. Check continuity between audio unit connector M94 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK AUDIO UNIT VOLTAGE

1. Connect audio unit connector M94.

2. Turn ignition switch ON.

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

Is the inspection result normal?

YES

>> Replace Bose speaker amp. Refer to 

AV-214, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-203, "Removal and Installation"

.

Audio unit

Bose speaker amp.

Continuity

Connector

Terminal

Connector

Terminal

M94

1

B43

18

Yes

Audio unit

Ground

Continuity

Connector

Terminal

M94

1

—

No

Audio unit

Ground

Voltage

(Approx.)

(+)

(–)

Connector

Terminal

M94

1

—

Battery voltage

AV

BLUETOOTH® VOICE SIGNAL CIRCUIT

AV-189

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH BOSE]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

BLUETOOTH® VOICE SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009758904

Regarding Wiring Diagram information, refer to 

AV-157, "Wiring Diagram"

.

1.

CHECK BLUETOOTH

®

 VOICE SIGNAL CIRCUIT CONTINUITY

1. Turn ignition switch OFF.
2. Disconnect audio unit connector M95 and Bluetooth

®

 control unit connector M45.

3. Check continuity between audio unit connector M95 and Bluetooth

®

 control unit connector M45.

4. Check continuity between audio unit connector M95 and ground.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK BLUETOOTH

®

 VOICE SIGNAL GROUND CIRCUIT CONTINUITY

Check continuity between audio unit connector M95 and Bluetooth

®

 control unit connector M45.

Is inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK BLUETOOTH

®

 VOICE SIGNAL

1. Connect audio unit connector M95 and Bluetooth

®

 control unit connector M45.

2. Turn ignition switch to ACC.
3. Press  

switch.

4. Check signal between the terminals of audio unit connector M95.

Audio unit

Bluetooth

®

 control unit

Continuity

Connector

Terminal

Connector

Terminal

M95

25

M45

9

Yes

Audio unit

Ground

Continuity

Connector

Terminal

M95

25

—

No

Audio unit

Bluetooth

®

 control unit

Continuity

Connector

Terminal

Connector

Terminal

M95

24

M45

10

Yes

AV-190

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH BOSE]

BLUETOOTH® VOICE SIGNAL CIRCUIT

Is the inspection result normal?

YES

>> Replace Bluetooth

®

 control unit. Refer to 

AV-217, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-203, "Removal and Installation"

.

Audio unit connector M95

Condition

Reference value

(+)

(

−)

Terminal

Terminal

25

24

During voice guide output with 

 switch pressed.

SKIB3609E

AV

BLUETOOTH® CONTROL SIGNAL CIRCUIT

AV-191

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH BOSE]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

BLUETOOTH® CONTROL SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009758905

Regarding Wiring Diagram information, refer to 

AV-157, "Wiring Diagram"

.

1.

CHECK CONTROL SIGNAL CIRCUIT CONTINUITY

1. Turn ignition switch OFF.
2. Disconnect Bluetooth

®

 control unit connector M45.

3. Check continuity between Bluetooth

®

 control unit connector M45 and ground.

Is the inspection result normal?

YES

>> Replace Bluetooth

®

 control unit. Refer to 

AV-217, "Removal and Installation"

.

NO

>> Repair or replace harness or connectors.

Bluetooth

®

 control unit

Ground

Continuity

Connector

Terminals

M45

                         4

—

Yes

21

22

24