Infiniti Q45. Manual - part 173

NAVIGATION SYSTEM

AV-121

C

D

E

F

G

H

I

J

L

M

A

B

AV

All Images Are Not Displayed

NKS002KL

Symptom: RGB image and rear view image are not displayed.

1. 

DIAGNOSIS USING CONSULT-II

1.

With the ignition switch OFF, connect “CONSULT-II” and “CONSULT-II CONVERTER” to the data link
connector, and then turn the ignition switch ON.

2.

Check if “MULTI AV” is shown on the SELECT SYSTEM screen.

Is “MULTI AV” shown?

YES

>> GO TO 3.

NO

>> GO TO 2.

2. 

CHECK AV AND NAVI CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT

1.

Check voltage between AV and NAVI control unit harness con-
nector terminals and ground.

2.

Turn ignition switch OFF.

3.

Disconnect NAVI control unit connector.

4.

Check continuity between NAVI control unit harness connector
B30 terminals 1, 4 and ground.

OK or NG

OK

>> Replace AV and NAVI control unit.

NG

>> Repair harness or connector.

Terminals

OFF

ACC

ON

(+)

(–)

Connector

Terminal

B30

2, 3

Ground

Battery
voltage

Battery
voltage

Battery
voltage

6

0  V

Battery
voltage

Battery
voltage

1, 4 – Ground

: Continuity should exist.

SKIB7652E

SKIB7653E

AV-122

NAVIGATION SYSTEM

3. 

CHECK DISPLAY POWER SUPPLY AND GROUND CIRCUIT

1.

Check voltage between display harness connector terminals
and ground.

2.

Turn ignition switch OFF.

3.

Disconnect display connector.

4.

Check continuity between display harness connector M82 termi-
nals 22, 24 and ground.

OK or NG

OK

>> Replace display.

NG

>> Repair harness or connector.

Rear View Image Is Not Displayed

NKS002KM

Refer to 

DI-186, "Trouble Diagnosis"

 .

Terminals

OFF

ACC

ON

(+)

(–)

Connector

Terminal

M82

21, 23

Ground

Battery
voltage

Battery
voltage

Battery
voltage

19

0 V

Battery
voltage

Battery
voltage

22, 24 – Ground

: Continuity should exist.

SKIB7654E

SKIB7655E

NAVIGATION SYSTEM

AV-123

C

D

E

F

G

H

I

J

L

M

A

B

AV

Tint Is Strange for The RGB Image

NKS001J7

Symptom: Tint of RGB image is strange.

1. 

CHECK HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect AV and NAVI control unit and display connectors.

3.

Check the malfunctioning circuit according to the symptoms.

●

Light blue (Cyan) tinged screen
Check continuity between AV and NAVI control unit harness
connector (A) B30 terminal 18 and display harness connector
(B) M82 terminal 1.

Check continuity between AV and NAVI control unit harness
connector (A) B30 terminal 18 and ground.

●

Purple (Magenta) tinged screen
Check continuity between AV and NAVI control unit harness
connector (A) B30 terminal 21 and display harness connector
(B) M82 terminal 2.

Check continuity between AV and NAVI control unit harness
connector (A) B30 terminal 21 and ground.

●

Yellow tinged screen
Check continuity between AV and NAVI control unit harness
connector (A) B30 terminal 15 and display harness connector
(B) M82 terminal 3.

Check continuity between AV and NAVI control unit harness
connector (A) B30 terminal 15 and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair harness or connector.

18 – 1

: Continuity should exist.

18 – Ground

: Continuity should not exist.

SKIB7656E

21 – 2

: Continuity should exist.

21 – Ground

: Continuity should not exist.

SKIB7657E

15 – 3

: Continuity should exist.

15 – Ground

: Continuity should not exist.

SKIB7658E

AV-124

NAVIGATION SYSTEM

2. 

CHECK RGB SIGNAL

1.

Connect AV and NAVI control unit and display connectors.

2.

Turn ignition switch ON.

3.

Start Confirmation/Adjustment mode. Refer to 

AV-108, "Confirmation/Adjustment Mode"

 .

4.

Display color bar by selecting “Display Color Spectrum Bar” on DISPLAY DIAGNOSIS screen. Refer to

AV-109, "DISPLAY DIAGNOSIS"

 .

5.

Check the malfunctioning circuit according to the symptoms.

●

Light blue (Cyan) tinged screen
Check voltage waveform between AV and NAVI control unit har-
ness connector B30 terminal 18 and ground with CONSULT-ll or
oscilloscope.

●

Purple (Magenta) tinged screen
Check voltage waveform between AV and NAVI control unit har-
ness connector B30 terminal 21 and ground with CONSULT-ll or
oscilloscope.

●

Yellow tinged screen
Check voltage waveform between AV and NAVI control unit har-
ness connector B30 terminal 15 and ground with CONSULT-ll or
oscilloscope.

OK or NG

OK

>> Replace display.

NG

>> Replace AV and NAVI control unit.

18 – Ground:

SKIB7659E

SKIB3604E

21 – Ground:

SKIB7660E

SKIB3605E

15 – Ground:

SKIB7661E

SKIB3602E