Infiniti F50. Manual - part 320

 

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Infiniti F50. Manual - part 320

 

 

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT 

NAVIGATION SYSTEM

DI-123

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Illumination Control Signal Inspection

EKS006E5

1. 

CHECK ILLUMINATION CONTROL SIGNAL

1.

Turn ignition switch ON.

2.

Check voltage between AV control unit and ground.

OK or NG

OK

>> Replace AV control unit.

NG

>> Check harness for open or short between AV control unit and BCM.

Ignition Signal Inspection

EKS006E6

1. 

CHECK IGNITION SIGNAL

1.

Disconnect AV control unit connector.

2.

Check voltage between AV control unit and ground.

OK or NG

OK

>> Replace AV control unit.

NG

>> Check harness for open or short between AV control unit and fuse.

RGB Screen is not Shown

EKS006E7

1. 

CHECK HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect AV control unit and display connector.

3.

Check continuity between AV control unit harness connector
M78 terminal 12 (LG), 13 (L/Y) and ground.

4.

Check continuity between AV control unit harness connector
M78 terminal 12 (LG) and display harness connector M82 termi-
nal 8 (LG).

5.

Check continuity between AV control unit harness connector M78 terminal 13 (L/Y) and display harness
connector M82 terminal 5 (L/Y).

OK or NG

OK

>> GO TO 2.

NG

>>

Check connector housings for disconnected or loose terminals.

Repair harness or connector.

Terminals

Lighting 

switch 

condition

Voltage (V)

(+)

(-)

Connector

Terminal 

(Wire color)

 M77

25 (L/Y)

Ground

1st or 2nd 
position

Approx. 3.5 or more

OFF

Less than approx. 1.5

SKIA3611E

Terminals

Ignition switch position

(+)

(-)

OFF

ACC

ON

Connector

Terminal 

(wire color)

M77

27 (BR/W)

Ground

0V

0V

Battery 
voltage

SKIA3612E

Continuity should not exist.

Continuity should exist.

Continuity should exist.

SKIA3594E

DI-124

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT 

NAVIGATION SYSTEM

2. 

CHECK HORIZONTAL SYNCHRONIZATION SIGNAL

1.

Connect AV control unit connector and display connector.

2.

Turn ignition switch ON.

3.

Check voltage between AV control unit harness connector M78
terminals 13 (L/Y) and 10.

OK or NG

OK

>> GO TO 3.

NG

>> Replace display.

3. 

CHECK RGB AREA SIGNAL

1.

Press “INFO” switch.

2.

Check voltage between AV control unit harness connector M78
terminals 12 (LG) and 10.

OK or NG

OK

>> Replace display. 

NG

>> Replace AV control unit.

Color of RGB Image is not Proper

EKS006E8

1. 

CHECK COLOR BAR DIAGNOSIS

Check color tone by “SCREEN ADJUSTMENT” of CONFIRMATION/ADJUSTMENT function.
OK or NG

OK

>> Inspection end.

NG

>> GO TO 2.

13 (L/Y) - 10

: Refer to 

DI-101, "Terminals 

and Reference Value for AV 
Control Unit"

 .

SKIA3595E

12 (LG) - 10

: Refer to 

DI-101, "Terminals 

and Reference Value for AV 
Control Unit"

 .

SKIA3596E

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT 

NAVIGATION SYSTEM

DI-125

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2. 

CHECK HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect AV control unit 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 

(Wire color)

Connector

Terminal 

(Wire color)

 M78

18 (L)

M82

1 (L)

Yes

14

M82

4

Yes

Terminals

Continuity

(+)

(-)

Connector

Terminal 

(wire color)

M78

14, 18 (L)

Ground

No

Terminals

Continuity

 AV control unit

Display 

Connector

Terminal 

(Wire color)

Connector

Terminal 

(Wire color)

 M78

21 (Y)

M82

2 (Y)

Yes

14

M82

4

Yes

Terminals

Continuity

(+)

(-)

Connector

Terminal 

(Wire color)

M78

14, 21 (Y)

Ground

No

Terminals

Continuity

 AV control unit 

Display

Connector

Terminal 

(Wire color)

Connector

Terminal 

(Wire color)

 M78

24 (G)

M82

3 (G)

Yes

14

M82

4

Yes

Terminals

Continuity

(+)

(-)

Connector

Terminal 

(Wire color)

 M78

14, 24 (G)

Ground

No

SKIA3597E

SKIA3598E

SKIA3599E

DI-126

VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT 

NAVIGATION SYSTEM

3. 

CHECK RGB SIGNAL

1.

Connect AV control unit and display connector.

2.

Turn ignition switch ON.

3.

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

4.

Check the following with CONSULT-II or oscilloscope.

When the screen looks bluish

Voltage signal between AV control unit harness connector M78 ter-
minal 18 (L) and 14.

When the screen looks reddish

Voltage signal between AV control unit harness connector M78 ter-
minal 21 (Y) and 14.

When the screen looks yellowish

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

OK or NG

OK

>> Replace display.

NG

>> Replace AV control unit.

RGB Screen Is Rolling

EKS006E9

1. 

CHECK HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect AV control unit and display connector.

3.

Check continuity between AV control unit and ground.

4.

Check continuity between AV control unit and display.

OK or NG

OK

>> GO TO 2.

NG

>>

Check connector housings for disconnected or loose terminals.

Repair harness or connector.

18 (L) - 14

: Refer to 

DI-101, "Terminals and 

Reference Value for AV Control 
Unit"

 .

21 (Y) - 14

: Refer to 

DI-101, "Terminals and 

Reference Value for AV Control 
Unit"

 .

24 (G) - 14

: Refer to 

DI-101, "Terminals and 

Reference Value for AV Control Unit"

 

.

SKIA3600E

Terminals

Continuity

 (+)

(-)

Connector

Terminal 

(Wire color)

M78

15 (L/R)

Ground

No

10

Terminals

Continuity

AV control unit

Display

Connector

Terminal 

(Wire color)

Connector

Terminal 

(Wire color)

M78

15 (L/R)

M82

7 (L/R)

Yes

10

4

SKIA3601E

 

 

 

 

 

 

 

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