Nissan Qashqai J11. Manual - part 2104

AV

MICROPHONE SIGNAL CIRCUIT

AV-105

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MICROPHONE SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000010435613

Regarding Wiring Diagram information, refer to 

AV-81, "Wiring Diagram"

.

1.

CHECK HARNESS BETWEEN AUDIO UNIT AND MICROPHONE

1.

Turn ignition switch OFF.

2.

Disconnect audio unit connector M11 and microphone connector R20.

3.

Check continuity between audio unit connector M11 and microphone connector R20.

4.

Check continuity between audio unit connector M11 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connectors.

2.

CHECK MICROPHONE POWER SUPPLY

1.

Connect audio unit connector M11 and microphone connector R20.

2.

Turn ignition switch ON.

3.

Check voltage between microphone connector R20 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace audio unit. Refer to 

AV-114, "Removal and Installation"

.

3.

CHECK MICROPHONE SIGNAL

Check signal between terminals of audio unit connector M11.

Audio unit

Microphone

Continuity

Connector

Terminal

Connector

Terminal

M11

37

R20

2

Yes

38

1

39

3

Audio unit

Ground

Continuity

Connector

Terminal

M11

38

—

No

37

Microphone

Ground

Voltage

(Approx.)

(+)

(-)

Connector

Terminal

R20

3

—

5V

AV-106

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MICROPHONE SIGNAL CIRCUIT

Is the inspection result normal?

YES

>> Replace audio unit. Refer to 

AV-114, "Removal and Installation"

.

NO

>> Replace microphone. Refer to 

AV-120, "Removal and Installation"

.

Audio unit connector M87

Condition

Reference value

(+)

(-)

Terminal

Terminal

45

47

Speak into microphone.

PKIB5037J

AV

USB CONNECTOR

AV-107

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USB CONNECTOR

Diagnosis Procedure

INFOID:0000000010435615

Regarding Wiring Diagram information, refer to 

AV-81, "Wiring Diagram"

.

1.

CHECK USB INTERFACE HARNESS CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect audio unit connector M383 and USB interface connector M384.

3.

Check continuity between audio unit connector M383 and USB interface connector M384.

4.

Check continuity between audio unit connector M383 and ground.

Is the inspection result normal?

YES

>> Replace the USB interface. Refer to 

AV-119, "Removal and Installation"

.

NO

>> Repair or replace harness or connectors.

Audio unit

USB interface 

Continuity

Connector

Terminal

Connector

Terminal

M383

129

M384

7

Yes

130

5

131

8

132

6

133

9

Audio unit

—

Continuity

Connector

Terminal

M383

130

Ground

No

132

AV-108

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[DISPLAY AUDIO]

AUXILIARY INPUT JACK

AUXILIARY INPUT JACK

Diagnosis Procedure

INFOID:0000000010435616

Regarding Wiring Diagram information, refer to 

AV-81, "Wiring Diagram"

.

1.

CHECK AUX JACK HARNESS CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect audio control unit connector M12 and AUX in jack connector M13.

3.

Check continuity between audio control unit connector M12 and AUX in jack connector M13.

4.

Check continuity between audio control unit connector M12 and ground.

Is the inspection result normal?

YES

>> Replace the AUX in jack. Refer to 

AV-119, "Removal and Installation"

.

NO

>> Repair or replace harness or connectors.

Audio control unit

AUX in jack

Continuity

Connector

Terminal

Connector

Terminal

M12

53

M13

1

Yes

55

3

54

4

Audio control unit

—

Continuity

Connector

Terminal

M12

53

Ground

No

54