Nissan X-Trail 32. Manual - part 10

AV-32

< BASIC INSPECTION >

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DIAGNOSIS AND REPAIR WORK FLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

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OVERALL SEQUENCE

Reference 1··· Refer to 

AV-46, "Symptom Table"

.

DETAILED FLOW

1.

CHECK SYMPTOM

Check the malfunction symptoms by performing the following items. 
• Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-

tion occurred). 

• Check the symptom. 

>> GO TO 2.

2.

PERFORM DIAGNOSIS BY SYMPTOM

Perform the relevant diagnosis referring to the diagnosis chart by symptom. Refer to 

AV-46, "Symptom Table"

.

>> GO TO 3.

3.

REPAIR OR REPLACE MALFUNCTIONING PARTS

Repair or replace the malfunctioning parts.

>> GO TO 4.

4.

FINAL CHECK

JSNIA0669GB

AV

DIAGNOSIS AND REPAIR WORK FLOW

AV-33

< BASIC INSPECTION >

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Perform the operation to check that the malfunction symptom is solved or any other symptoms are present.

Is there any symptom?

YES

>> GO TO 2.

NO

>> INSPECTION END

AV-34

< DTC/CIRCUIT DIAGNOSIS >

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POWER SUPPLY AND GROUND CIRCUIT

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

AUDIO UNIT

AUDIO UNIT : Diagnosis Procedure

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1.

CHECK FUSE

Check for blown fuses.

Is inspection result 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 audio unit harness connector and ground.

Is inspection result OK?

YES

>> INSPECTION END

NO

>> Check harness between audio unit and fuse.

Power source

Fuse No.

Battery

19

Ignition switch ON or START

7

Signal name

Audio unit

Probe

Condition

Standard

Reference value

Terminal

Connector

(+)

(

−

)

Ignition switch

Battery power supply

M46

19

Ground

OFF

9.0 - 16.0 V

Battery voltage

Ignition power supply

7

ON

AV

AV COMMUNICATION CIRCUIT

AV-35

< DTC/CIRCUIT DIAGNOSIS >

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AV COMMUNICATION CIRCUIT

Diagnosis Procedure

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NOTE:
• The auto ACC function allows the accessory power supply for a certain period of time even after ignition

switch OFF. For this reason, when performing diagnosis, turn the ignition switch OFF and wait for 3 minutes
with the driver's door opened.

• The operation of the vehicle during standby may cause an accessory power supply.

1.

CHECK CONTINUITY AV COMMUNICATION CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect audio unit connector and combination meter connector.

3.

Check continuity between audio unit harness connector and combination meter harness connector.

4.

Check continuity between audio unit harness connector and ground.

Is inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

Audio unit

Combination meter

Continuity

Connector

Terminal

Connector

Terminal

M47

46

M42

47

Existed

47

48

48

47

49

48

Audio unit

Ground

Continuity

Connector

Terminal

M47

46

Not existed

47

48

49