Nissan Leaf. Manual - part 75

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-291

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POWER SUPPLY AND GROUND CIRCUIT

AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis Procedure

INFOID:0000000010122563

Regarding Wiring Diagram information, refer to 

AV-255, "Wiring Diagram"

.

1.

CHECK FUSE

Check if the following fuses are blown.

Is the check result normal?

YES

>> GO TO 2.

NO

>> Replace the blown fuse after repairing the affected circuit.

2.

CHECK BATTERY VOLTAGE

Check the voltage between AV control unit harness connector and ground.

Is the check result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness and connectors.

Power supply

Fuse No.

BAT

34

Power switch ACC

19

Signal

AV control unit

Probe

Test condition

Standard

Reference value

Terminal

Connector

 (+) 

 (-) 

Power switch

BAT

M95

19

Ground

OFF

9 – 16 V

Battery voltage

ACC

7

ACC

4.5 – 16 V

AV-292

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[NAVIGATION WITHOUT BOSE]

FRONT DOOR SPEAKER

FRONT DOOR SPEAKER

Diagnosis Procedure

INFOID:0000000010122564

Regarding Wiring Diagram information, refer to 

AV-255, "Wiring Diagram"

.

1.

CONNECTOR CHECK

Check the AV control unit and speaker connectors for the following:

•  Proper connection

•  Damage

•  Disconnected or loose terminals
Is the inspection result normal?

YES

>> GO TO 2

NO

>> Repair the terminals or connectors.

2.

CHECK FRONT DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY

1. Disconnect AV control unit connector M95 and suspect front door speaker connector.

2. Check continuity between AV control unit connector M95 and suspect front door speaker connector.

3. Check continuity between AV control unit connector M95 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness or connectors.

3.

CHECK FRONT DOOR SPEAKER SIGNAL

1. Connect AV control unit connector M95 and suspect front door speaker connector.

2. Turn power switch to ACC.

3. Push AV control unit POWER switch.

4. Check signal between terminals of AV control unit connector M95.

AV control unit

Front door speaker

Continuity

Connector

Terminal

Connector

Terminal

M95

2

D23 (LH)

1

Yes

3

2

11

D123 (RH)

1

12

2

AV control unit

Ground

Continuity

Connector

Terminal

M95

2

—

No

3

11

12

AV control unit connector M95

Condition

Reference value

(+)

(

−)

Terminal

Terminal

AV

FRONT DOOR SPEAKER

AV-293

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Is the inspection result normal?

YES

>> Replace front door speaker. Refer to 

AV-320, "Removal and Installation"

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NO

>> Replace AV control unit. Refer to 

AV-318, "Removal and Installation"

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2

3

Audio signal output

11

12

SKIB3609E

AV-294

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITHOUT BOSE]

TWEETER

TWEETER

Diagnosis Procedure

INFOID:0000000010122565

Regarding Wiring Diagram information, refer to 

AV-255, "Wiring Diagram"

.

1.

CONNECTOR CHECK

Check the AV control unit and speaker connectors for the following:

•  Proper connection

•  Damage

•  Disconnected or loose terminals
Is the inspection result normal?

YES

>> GO TO 2

NO

>> Repair the terminals or connectors.

2.

CHECK TWEETER SIGNAL CIRCUIT CONTINUITY

1. Disconnect AV control unit connector M95 and suspect tweeter connector.

2. Check continuity between AV control unit connector M95 and suspect tweeter connector.

3. Check continuity between AV control unit connector M95 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness or connectors.

3.

CHECK TWEETER SIGNAL

1. Connect AV control unit connector M95 and suspect tweeter connector.

2. Turn power switch to ACC.

3. Push AV control unit POWER switch.

4. Check signal between terminals of AV control unit connector M95.

AV control unit

Tweeter

Continuity

Connector

Terminal

Connector

Terminal

M95

2

M15 (LH)

1

Yes

3

2

11

M525 (RH)

1

12

2

AV control unit

Ground

Continuity

Connector

Terminal

M95

2

—

No

3

11

12

AV control unit connector M95

Condition

Reference value

(+)

(

−)

Terminal

Terminal