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
and Reference Value for AV
Control Unit"
SKIA3595E
12 (LG) - 10
: Refer to
and Reference Value for AV
Control Unit"
SKIA3596E
VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT
NAVIGATION SYSTEM
DI-125
C
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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
Reference Value for AV Control
Unit"
21 (Y) - 14
: Refer to
Reference Value for AV Control
Unit"
24 (G) - 14
: Refer to
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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