Infiniti EX35. Manual - part 194

AV

AUX IMAGE SIGNAL CIRCUIT

AV-557

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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AUX IMAGE SIGNAL CIRCUIT

Description

INFOID:0000000003160715

Transmits the image signal of external device from auxiliary input jacks to display unit.

Diagnosis Procedure

INFOID:0000000003160716

1.

CHECK CONTINUITY AUX IMAGE SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect auxiliary input jacks connector and display unit connector.

3.

Check continuity between auxiliary input jacks harness connector and display unit harness connector.

4.

Check continuity between auxiliary input jacks harness connector and ground.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK AUX IMAGE SIGNAL

1.

Connect auxiliary input jacks connector and display unit connector.

2.

Turn ignition switch ON.

3.

Check signal between auxiliary input jacks harness connector and ground.

Is inspection result normal?

YES

>> Replace display unit.

NO

>> Check that there is no malfunction in the external device.

Auxiliary input jacks

Display unit

Continuity

Connector

Terminal

Connector

Terminal

M154

7

M75

15

Existed

Auxiliary input jacks

Ground

Continuity

Connector

Terminal

M154

7

Not existed

(+)

(

−

)

Condition

Reference value

Auxiliary input jacks

Connector

Terminal

M154

7

Ground

At AUX image displayed

SKIB2251J

AV-558

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

MODE CHANGE SIGNAL CIRCUIT

MODE CHANGE SIGNAL CIRCUIT

Description

INFOID:0000000003533898

• AV control unit transmits the mode change signal to BOSE amp. 
• Driver's Audio Stage controls the speaker's output characteristic by BOSE amp. so that the driver's seat is to

be the center of sounds.

Diagnosis Procedure

INFOID:0000000003533899

1.

CHECK CONTINUITY MODE CHANGE SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BOSE amp. connector and AV control unit connector.

3.

Check continuity between BOSE amp. harness connector and AV control unit harness connector.

4.

Check continuity between BOSE amp. harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK MODE CHANGE SIGNAL

1.

Connect BOSE amp. connector.

2.

Turn ignition switch ON.

3.

Check voltage between BOSE amp. harness connector and ground.

Is the inspection result normal?

YES

>> Replace AV control unit.

NO

>> Replace BOSE amp.

BOSE amp.

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

B41

17

M87

44

Existed

BOSE amp.

Ground

Continuity

Connector

Terminal

B41

17

Not existed

(+)

(

−

)

Voltage

(Approx.)

BOSE amp.

Connector

Terminal

B41

17

Ground

8.5 V

AV

DISK EJECT SIGNAL CIRCUIT

AV-559

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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DISK EJECT SIGNAL CIRCUIT

Description

INFOID:0000000003160717

The eject signal is output to AV control unit when the eject switch of multifunction switch is pressed.

Diagnosis Procedure

INFOID:0000000003160718

1.

CHECK CONTINUITY CD EJECT SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect multifunction switch connector and AV control unit connector.

3.

Check continuity between multifunction switch harness connector and AV control unit harness connector.

4.

Check continuity between multifunction switch harness connector and ground.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK AV CONTROL UNIT VOLTAGE 

1.

Connect AV control unit connector.

2.

Turn ignition switch ON.

3.

Check voltage between AV control unit harness connector and ground.

Is inspection result normal?

YES

>> Replace preset switch.

NO

>> Replace AV control unit.

Multifunction switch

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

M72

14

M89

85

Existed

Multifunction switch

Ground

Continuity

Connector

Terminal

M72

14

Not existed

(+)

(

−

)

Voltage

(Approx.)

AV control unit

Connector

Terminal

M89

85

Ground

3.3 V

AV-560

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

MICROPHONE SIGNAL CIRCUIT

MICROPHONE SIGNAL CIRCUIT

Description

INFOID:0000000003160719

Supply power from AV control unit to microphone. The microphone transmits the sound voice to the AV control
unit.

Diagnosis Procedure

INFOID:0000000003160720

1.

CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND MICROPHONE CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect AV control unit connector and microphone connector.

3.

Check continuity between AV control unit harness connector and microphone harness connector.

4.

Check continuity between AV control unit harness connector and ground.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK VOLTAGE MICROPHONE VCC 

1.

Connect AV control unit connector.

2.

Turn ignition switch ON.

3.

Check voltage between AV control unit harness connector.

Is inspection result normal?

YES

>> GO TO 3.

NO

>> Replace AV control unit.

3.

CHECK MICROPHONE SIGNAL 

1.

Turn ignition switch OFF.

2.

Connect microphone connector.

3.

Turn ignition switch ON.

4.

Check signal between AV control unit harness connector.

AV control unit

Microphone

Continuity

Connector

Terminals

Connector

Terminals

M87

26

R17

4

Existed

27

2

28

1

AV control unit

Ground

Continuity

Connector

Terminals

M87

26

Not existed

28

(+)

(

−

)

Voltage

(Approx.)

AV control unit

AV control unit

Connector

Terminal

Connector

Terminal

M87

26

M87

27

5.0 V