Infiniti Q45. Manual - part 325

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITH NAVIGA-

TION SYSTEM

DI-167

C

D

E

F

G

H

I

J

L

M

A

B

DI

Fuel Information Is Not Displayed/Warning Message Is Not Displayed

NKS001DU

1. 

CHECK HARNESS

1.

Turn ignition switch OFF.

2.

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

3.

Check continuity between AV and NAVI control unit harness connector B29 terminals 33, 32 and combina-
tion meter harness connector M41 terminals 7, 6.

4.

Check continuity between AV and NAVI control unit harness
connector B29 terminals 33, 32 and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair harness or connector.

2. 

CHECK COMMUNICATION SIGNAL (AV–ME)

1.

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

2.

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

3.

Check voltage signal between AV and NAVI control unit harness
connector B29 terminal 33 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Replace AV and NAVI control unit.

Terminals

Continuity

AV and NAVI control unit (+)

Combination meter (–)

Connector

Terminal

Connector

Terminal

B29

33

M41

7

Yes

32

6

Terminals

Continuity

AV and NAVI control unit (+)

(–)

Connector

Terminal

B29

33

Ground

No

32

PKIA9731E

33 – Ground:

PKIA9732E

SKIA0169E

DI-168

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITH NAVIGA-

TION SYSTEM

3. 

CHECK COMMUNICATION SIGNAL (ME–AV)

1.

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

2.

Check voltage signal between AV and NAVI control unit harness
connector B29 terminal 32 and ground.

OK or NG

OK

>> Replace AV and NAVI control unit.

NG

>> Replace combination meter.

Vehicle Condition Setting Is Not Possible

NKS001DV

1. 

CHECK HARNESS

1.

Turn ignition switch OFF.

2.

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

3.

Check continuity AV and NAVI control unit harness connector B29 terminals 33, 32 and BCM harness
connector M4 terminals 31, 30.

4.

Check continuity between AV and NAVI control unit harness
connector B29 terminals 33, 32 and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair harness or connector.

32 – Ground:

PKIA9733E

SKIA0170E

Terminals

Continuity

AV and NAVI control unit

BCM

Connector

Terminal

Connector

Terminal

B29

33

M4

31

Yes

32

30

Terminals

Continuity

AV and NAVI control unit (+)

(–)

Connector

Terminal

B29

33 

Ground

No

32

PKIA9734E

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITH NAVIGA-

TION SYSTEM

DI-169

C

D

E

F

G

H

I

J

L

M

A

B

DI

2. 

CHECK COMMUNICATION SIGNAL (AV–ME)

1.

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

2.

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

3.

Check voltage signal between AV and NAVI control unit harness
connector B29 terminal 33 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Replace AV and NAVI control unit.

3. 

CHECK COMMUNICATION SIGNAL (ME–AV)

1.

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

2.

Check voltage signal between AV and NAVI control unit harness
connector B29 terminal 32 and ground.

OK or NG

OK

>> Replace AV and NAVI control unit.

NG

>> Replace BCM.

Multifunction Switch Does Not Operate

NKS001DW

1. 

MULTIFUNCTION SWITCH SELF-DIAGNOSIS

Perform multifunction switch self-diagnosis. Refer to 

DI-165, "Multifunction Switch Self-Diagnosis Function"

 .

Does multifunction switch self-diagnosis mode operate?

YES

>> With the self-diagnosis results, check the malfunctioning part.

NO

>> GO TO 2.

2. 

COMMUNICATION CIRCUIT SELF-DIAGNOSIS

Perform the self-diagnosis with CONSULT-II. Refer to 

AV-115, "CONSULT-II Function (MULTI AV)"

 .

Is self-diagnosis result OK?

YES

>> Replace multifunction switch. 

NO

>> With the self-diagnosis results, check the malfunctioning part.

33 – Ground:

PKIA9732E

SKIA0169E

32 – Ground:

PKIA9733E

SKIA0170E

DI-170

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITH NAVIGA-

TION SYSTEM

Removal and Installation of Multifunction Switch

NKS001DX

Refer to 

IP-10, "INSTRUMENT PANEL ASSEMBLY"

 .

Removal and Installation of AV and NAVI Control Unit

NKS001DY

REMOVAL

1.

Remove the trunk compartment trim. Refer to 

EI-60, "TRUNK

ROOM TRIM & TRUNK LID FINISHER"

 .

2.

Remove the screws (4) and remove the AV and NAVI control
unit.

INSTALLATION

Installation is the reverse order of removal.

Removal and Installation of Display 

NKS001DZ

REMOVAL

1.

Remove the cluster lid C. Refer to 

IP-10, "INSTRUMENT

PANEL ASSEMBLY"

 .

2.

Remove the screws (4), and remove the display.

INSTALLATION

Installation is the reverse order of removal.

SKIA3581E

SKIA4109E