Nissan Versa Sedan. Manual - part 51

AV-196

< DTC/CIRCUIT DIAGNOSIS >

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U1310 AV CONTROL UNIT

U1310 AV CONTROL UNIT

DTC Logic

INFOID:0000000009375181

DTC DETECTION LOGIC

CONSULT Display

DTC Detection Condition

Possible Cause

CONTROL UNIT (AV)
[U1310]

Error during CAN controller hardware initializa-
tion (MCAN).

Replace AV control unit if malfunction occurs 
constantly.
Refer to 

AV-222, "Removal and Installation"

.

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-197

< DTC/CIRCUIT DIAGNOSIS >

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POWER SUPPLY AND GROUND CIRCUIT

AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis Procedure

INFOID:0000000009375182

Regarding Wiring Diagram information, refer to 

AV-162, "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 AV control unit connectors M70 and M71.

3. Check voltage between AV control unit connectors M70 and M71 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 AV control unit connector M70 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

Terminal No.

Signal name

Fuse No.

7

ACC power supply

18 (10A)

19

Battery power supply

29 (20A)

37

Ignition power supply

5 (10A)

AV control unit

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M70

19

—

Ignition switch: OFF

Battery voltage

7

Ignition switch: ON

M71

37

AV control unit

Ground

Continuity 

Connector

Terminal

M70

20

—

Yes

AV-198

< DTC/CIRCUIT DIAGNOSIS >

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FRONT DOOR SPEAKER

FRONT DOOR SPEAKER

Diagnosis Procedure

INFOID:0000000009375183

Regarding Wiring Diagram information, refer to 

AV-162, "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 M70 and suspect front door speaker connector.

2. Check continuity between AV control unit connector M70 and suspect front door speaker connector.

3. Check continuity between AV control unit connector M70 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 M70 and suspect front door speaker connector.

2. Turn ignition switch to ACC.

3. Push AV control unit POWER switch.

4. Check signal between the terminals of AV control unit connector M70.

AV control unit

Front door speaker

Continuity

Connector

Terminal

Connector

Terminal

M70

2

D12 (LH)

1

Yes

3

2

11

D112 (RH)

1

12

2

AV control unit

Ground

Continuity

Connector

Terminal

M70

2

—

No

3

11

12

AV control unit connector M70

Condition

Reference value

(+)

(

−)

Terminal

Terminal

AV

FRONT DOOR SPEAKER

AV-199

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Is the inspection result normal?

YES

>> Replace front door speaker. Refer to 

AV-224, "Removal and Installation"

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NO

>> Replace AV control unit. Refer to 

AV-222, "Removal and Installation"

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2

3

Audio signal output

11

12

SKIB3609E