Nissan Xterra. Manual - part 26

AV-96

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO]

STEERING SWITCH

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace spiral cable. Refer to

SR-13, "Removal and Installation"

 .

4.

CHECK HARNESS BETWEEN BLUETOOTH

®

 CONTROL UNIT AND AUDIO UNIT

1. Disconnect audio unit connector M44.
2. Check continuity between Bluetooth

®

 control unit connector B141 and audio unit connector M44.

3. Check continuity between Bluetooth

®

 control unit connector B141 and ground.

Is the inspection result normal?

YES

>> Replace audio unit. Refer to 

AV-108, "Removal and Installation"

.

NO

>> Repair or replace harness or connectors.

Combination switch

Continuity

Connector

Terminal

Connector

Terminal

M30

24

M102

15

Yes

25

16

31

18

Bluetooth

®

 control unit

Audio unit

Continuity

Connector

Terminal

Connector

Terminal

B141

17

M44

6

Yes

18

16

19

15

Bluetooth

®

 control unit

—

Continuity

Connector

Terminal

B141

17

Ground

No

18

19

AV

MICROPHONE SIGNAL CIRCUIT

AV-97

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO]

C

D

E

F

G

H

I

J

K

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M

B

A

O

P

MICROPHONE SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009485190

Regarding Wiring Diagram information, refer to 

AV-71, "Wiring Diagram"

.

1.

CHECK HARNESS BETWEEN BLUETOOTH

®

 CONTROL UNIT AND MICROPHONE

1. Turn ignition switch OFF.
2. Disconnect Bluetooth

®

 control unit connector B141 and microphone connector.

3. Check continuity between Bluetooth

®

 control unit connector B141 and microphone connector R8.

4. Check continuity between Bluetooth

®

 control unit connector B141 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK MICROPHONE POWER SUPPLY

1. Connect Bluetooth

®

 control unit connector B141 and microphone connector.

2. Turn ignition switch ON.

3. Check voltage between microphone connector R8 terminal 4 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace Bluetooth

®

 control unit. Refer to 

AV-113, "Removal and Installation"

.

3.

CHECK MICROPHONE SIGNAL

Check signal between Bluetooth

®

 control unit connector B141 with CONSULT or and oscilloscope.

Bluetooth

®

 control unit

Microphone

Continuity

Connector

Terminal

Connector

Terminal

B141

7

R8

1

Yes

8

2

29

4

Bluetooth

®

 control unit

—

Continuity

Connector

Terminal

B141

7

Ground

No

8

29

Microphone

Ground

Value (Approx.)

Connector

Terminal

R8

4

—

5V

AV-98

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO]

MICROPHONE SIGNAL CIRCUIT

Is the inspection result normal?

YES

>> Replace Bluetooth

®

 control unit. Refer to 

AV-113, "Removal and Installation"

.

NO

>> Replace microphone. Refer to 

AV-115, "Removal and Installation"

.

Bluetooth

®

 control unit connector B141

Condition

Reference signal

(+)

(-)

Terminal

Terminal

7

8

Speak into microphone.

PKIB5037J

AV

USB CONNECTOR

AV-99

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO]

C

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USB CONNECTOR

Diagnosis Procedure

INFOID:0000000009485191

Regarding Wiring Diagram information, refer to 

AV-71, "Wiring Diagram"

.

1.

CHECK USB INTERFACE HARNESS CONTINUITY

1. Turn ignition switch OFF.

2. Disconnect audio unit connector M64 and USB interface connector M214.

3. Check continuity between audio unit connector M64 and USB interface connector M214.

4. Check continuity between audio unit connector M64 and ground.

Is the inspection result normal?

YES

>> Replace the USB interface. Refer to 

AV-119, "Removal and Installation"

.

NO

>> Repair or replace harness or connectors.

Audio unit

USB interface 

Continuity

Connector

Terminal

Connector

Terminal

M64

53

M214

4

Yes

54

1

55

2

56

3

57

5

Audio unit

—

Continuity

Connector

Terminal

M64

53

Ground

No

55