Nissan Xterra. Manual - part 23

AV-84

< BASIC INSPECTION >

[DISPLAY AUDIO]

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000009485182

OVERALL SEQUENCE

DETAILED FLOW

1.

GET INFORMATION FOR SYMPTOM

Get detailed information from the customer about the symptom (the condition and the environment when the

incident/malfunction occurred).

>> GO TO 2.

2.

CONFIRM THE SYMPTOM

Try to confirm the symptom described by the customer. Verify relation between the symptom and the condition

when the symptom is detected.

>> GO TO 3.

3.

DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE

Inspect according to Diagnostic Procedure of the system.

ALNIA0182GB

AV

DIAGNOSIS AND REPAIR WORKFLOW

AV-85

< BASIC INSPECTION >

[DISPLAY AUDIO]

C

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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-86

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO]

POWER SUPPLY AND GROUND CIRCUIT

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

AUDIO UNIT
AUDIO UNIT : Diagnosis Procedure

INFOID:0000000009485183

Regarding Wiring Diagram information, refer to 

AV-71, "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 M44.

3. Check voltage between audio unit connector M44 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK GROUND CIRCUIT

Check continuity between audio unit connectors M44, M45 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:0000000009485184

Regarding Wiring Diagram information, refer to 

AV-71, "Wiring Diagram"

.

1.

CHECK FUSE

Terminal No.

Signal name

Fuse No.

7

ACC power supply

4 (10A)

19

Battery power supply

29 (20A)

Audio unit

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M44

7

—

Ignition switch: ON

Battery voltage

19

Ignition switch: OFF

Audio unit

Ground

Continuity

Connector

Terminal

M44

20

—

Yes

M45

47

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-87

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

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 Bluetooth

®

 control unit connector B141.

3. Check voltage between Bluetooth

®

 control unit connector B141 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 B141 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

MICROPHONE
MICROPHONE : Diagnosis Procedure

INFOID:0000000009485185

Regarding Wiring Diagram information, refer to 

AV-71, "Wiring Diagram"

.

1.

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch ON.

2. Check voltage between microphone connector R8 and ground.

Terminal No.

Signal name

Fuse No.

1

Battery power supply

29 (20A)

2

ACC power supply

4 (10A)

3

Ignition power supply

12 (10A)

Bluetooth

®

 control unit

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

B141

1

—

Ignition switch: OFF

Battery voltage

2

Ignition switch: ON

3

Bluetooth

®

 control unit

Ground

Continuity

Connector

Terminal

B141

4

—

Yes

21

22

(+)

(-)

Value (Approx.)

Connector

Terminal

R8

4

Ground

5V