Infiniti Q45. Manual — part 319

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT

NAVIGATION SYSTEM

DI-143

C

D

E

F

G

H

I

J

L

M

A

B

DI

2.

CHECK HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect AV control unit connector and display connector.

3.

Check continuity as follows.

●

When the screen looks bluish

●

When the screen looks reddish

●

When the screen looks yellowish

OK or NG

OK

>> GO TO 3.

NG

>>

●

Check connector housings for disconnected or loose terminals.

●

Repair harness or connector.

Terminals

Continuity

AV control unit

Display

Connector

Terminal

Connector

Terminal

M78

18

M82

1

Yes

M78

14

M82

4

Terminals

Continuity

(+)

(–)

Connector

Terminal

M78

14, 18

Ground

No

Terminals

Continuity

AV control unit

Display

Connector

Terminal

Connector

Terminal

M78

21

M82

2

Yes

M78

14

M82

4

Terminals

Continuity

(+)

(–)

Connector

Terminal

M78

14, 21

Ground

No

Terminals

Continuity

AV control unit

Display

Connector

Terminal

Connector

Terminal

M78

24

M82

3

Yes

M78

14

M82

4

Terminals

Continuity

(+)

(–)

Connector

Terminal

M78

14, 24

Ground

No

PKIA9699E

PKIA9700E

PKIA9701E

DI-144

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT

NAVIGATION SYSTEM

3.

CHECK RGB SIGNAL

1.

Connect AV control unit connector and display connector.

2.

Turn ignition switch ON.

3.

Display “Color bar” by “CONFIRMATION/ADJUSTMENT” mode.

4.

Check the following.

●

When the screen looks bluish

Voltage signal between AV control unit harness connector M78 ter-
minals 18 and 14

●

When the screen looks reddish

Voltage signal between AV control unit harness connector M78 terminals 21 (Y) and 14

●

When the screen looks yellowish

Voltage signal between AV control unit harness connector M78 terminals 24 (G) and 14

OK or NG

OK

>> Replace display.

NG

>> Replace AV control unit.

RGB Screen Is Rolling

NKS001D0

1.

CHECK HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect AV control unit connector and display connector.

3.

Check continuity between AV control unit harness connector
M78 terminal 15 and display harness connector M82 terminal 7.

4.

Check continuity between AV control unit harness connector
M78 terminal 15 and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair harness or connector.

18 – 14:

21 – 14:

24 – 14:

PKIA9702E

SKIA0165E

SKIA0166E

SKIA0167E

15 – 7

: Continuity should exist.

15 – Ground

: Continuity should not exist.

PKIA9703E

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT

NAVIGATION SYSTEM

DI-145

C

D

E

F

G

H

I

J

L

M

A

B

DI

2.

CHECK RGB SYNCHRONIZING SIGNAL

1.

Connect AV control unit connector and display connector.

2.

Turn ignition switch ON.

3.

Check voltage signal between AV control unit harness connector
M78 terminals 15 and 10.

OK or NG

OK

>> Replace display.

NG

>> Replace AV control unit.

No A/C Display is Shown

NKS001D1

Refer to

ATC-107, "A/C Display is Malfunctioning"

in ATC section.

A/C Operation Is Not Possible

NKS001D2

Refer to

ATC-108, "A/C Operation is Malfunctioning"

in ATC section.

No Fuel Information Is Displayed/No Warning Message Is Displayed

NKS001D3

1.

CHECK HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect connectors of AV control unit, combination meter
and BCM.

3.

Check continuity between AV control unit harness connector
M77 terminal 34 and combination meter harness connector M41
terminal 7.

4.

Check continuity between AV control unit harness connector
M77 terminal 35 and combination meter harness connector M41
terminal 6.

5.

Check continuity between AV control unit harness connector M77 terminals 34, 35 and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair harness or connector.

15 – 10:

PKIA9704E

SKIA0164E

34 – 7

: Continuity should exist.

35 – 6

: Continuity should exist.

34 – Ground

: Continuity should not exist.

35 – Ground

PKIA9705E

DI-146

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT

NAVIGATION SYSTEM

2.

CHECK COMMUNICATION SIGNAL (AV-ME)

1.

Connect connectors of combination meter, BCM and AV control
unit.

2.

Turn ignition switch ON and display “VEHICLE ELECTRONIC
SYSTEMS” screen.

3.

Check voltage signal between AV control unit harness connector
M77 terminal 34 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Replace AV control unit.

3.

CHECK COMMUNICATION SIGNAL (MEAV)

1.

Turn ignition switch ON and display “VEHICLE ELECTRONIC
SYSTEMS” screen.

2.

Check voltage signal between AV control unit harness connector
M77 terminal 35 and ground.

OK or NG

OK

>> Replace AV control unit.

NG

>> Replace combination meter.

34 – Ground:

PKIA9706E

SKIA0169E

35 – Ground:

PKIA9707E

SKIA0170E