Nissan Quest E52. Manual - part 52

AV

DISPLAY AUDIO

AV-87

< WIRING DIAGRAM >

[DISPLAY AUDIO]

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JRNWC6761GB

AV-88

< BASIC INSPECTION >

[DISPLAY AUDIO]

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000009651940

OVERALL SEQUENCE

Reference 1···Refer to 

AV-106, "Symptom Table"

 (audio system) or 

AV-108, "Symptom Table"

 (hands-free

phone system).

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-106, "Symptom Table"

(audio system) or 

AV-108, "Symptom Table"

 (hands-free phone system).

>> GO TO 3.

3.

REPAIR OR REPLACE MALFUNCTIONING PARTS

Repair or replace the malfunctioning parts.

>> GO TO 4.

JSNIA0669GB

AV

DIAGNOSIS AND REPAIR WORKFLOW

AV-89

< BASIC INSPECTION >

[DISPLAY AUDIO]

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4.

FINAL CHECK

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-90

< 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:0000000009651941

1.

CHECK FUSE

Check that the following fuses of the audio unit are not blown.

Is inspection result OK?

YES

>> GO TO 2.

NO

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

2.

CHECK AUDIO UNIT POWER SUPPLY CIRCUIT

Check voltage between the audio unit and ground.

Is inspection result OK?

YES

>> GO TO 3.

NO

>> Check harness between audio unit and fuse.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect audio unit connectors.

3.

Check continuity between audio unit harness connectors and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

TEL ADAPTER UNIT

TEL ADAPTER UNIT : Diagnosis Procedure

INFOID:0000000009651942

1.

CHECK FUSE

Check for blown fuses.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Be sure to eliminate cause of malfunction before installing new fuse. 

Power source

Fuse No.

Battery

35

Ignition switch ACC or ON

19

Signal name

Audio unit

Probe

Condition

Standard

Reference value

Terminal

Connector

(+)

(

−

)

Ignition switch

Battery power supply

M92

19

20

OFF

9.0 - 15.6 V

Battery voltage

ACC power supply

7

ACC

Signal name

Connector

Terminal

Ignition switch position

Continuity 

Ground

M92

20

OFF

Existed

Power source

Fuse No.

Battery

35

Ignition switch ACC or ON

19