Infiniti M45 (Y34). Manual — part 320
VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT
NAVIGATION SYSTEM
DI-125
C
D
E
F
G
H
I
J
L
M
A
B
DI
3.
CHECK RGB AREA SIGNAL
1.
Press “INFO” switch.
2.
Check voltage signal between AV control unit harness connector
M78 terminals 12 (B) and 10.
OK or NG
OK
>> Replace display.
NG
>> Replace AV control unit.
Color of RGB Image is Not Proper
AKS004OP
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.
12 (B) - 10
Reference Value for AV Control
Unit"
PKIA6795E
DI-126
VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT
NAVIGATION SYSTEM
2.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect connectors of AV control unit and display.
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 (R/L)
M82
1 (R/L)
Yes
14
4
Yes
Terminals
Continuity
(+)
(–)
Connector
Terminal
(Wire color)
M78
14, 18 (R/L)
Ground
No
Terminals
Continuity
AV control unit
Display
Connector
Terminal
(Wire color)
Connector
Terminal
(Wire color)
M78
21 (R/W)
M82
2 (R/W)
Yes
14
4
Yes
Terminals
Continuity
(+)
(–)
Connector
Terminal
(Wire color)
M78
14, 21 (R/W)
Ground
No
Terminals
Continuity
AV control unit
Display
Connector
Terminal
(Wire color)
Connector
Terminal
(Wire color)
M78
24 (B)
M82
3 (B)
Yes
14
4
Yes
Terminals
Continuity
(+)
(–)
Connector
Terminal (Wire
color)
M78
14, 24 (B)
Ground
No
SKIA3597E
SKIA3598E
SKIA3599E
VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT
NAVIGATION SYSTEM
DI-127
C
D
E
F
G
H
I
J
L
M
A
B
DI
3.
CHECK RGB SIGNAL
1.
Connect connectors of AV control unit and display.
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-
minals 18 (R/L) and 14
●
When the screen looks reddish
Voltage signal between AV control unit harness connector M78 ter-
minals 21 (R/W) and 14
●
When the screen looks yellowish
Voltage signal between AV control unit harness connector M78 terminals 24 (B) and 14
OK or NG
OK
>> Replace display.
NG
>> Replace AV control unit.
RGB Screen is Rolling
AKS004OQ
1.
CHECK HARNESS
1.
Disconnect connectors of AV control unit and display.
2.
Check continuity between AV control unit harness connector and display harness connector.
3.
Check continuity between AV control unit harness connector
and ground.
OK or NG
OK
>> GO TO 2.
NG
>>
●
Check connector housings for disconnected or loose terminals.
●
Repair harness or connector.
18 (R/L) - 14
: Refer to
Reference Value for AV Control
Unit"
.
21 (R/W) - 14
: Refer to
Reference Value for AV Control
Unit"
24 (B) - 14
: Refer to
Reference Value for AV Control
Unit"
PKIA6796E
Terminals
Continuity
AV control unit
Display
Connector
Terminal
(Wire color)
Connector
Terminal
(Wire color)
M78
15 (G)
M82
7 (G)
Yes
10
4
Terminals
Continuity
(+)
(–)
Connector
Terminal
(Wire color)
M78
15 (G)
Ground
No
10
SKIA3601E
DI-128
VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITHOUT
NAVIGATION SYSTEM
2.
CHECK RGB SYNCHRONIZING SIGNAL
1.
Connect connectors of AV control unit and display.
2.
Turn ignition switch ON.
3.
Check voltage signal between AV control unit harness connector
M78 terminals 15 (G) and 10.
OK or NG
OK
>> Replace display.
NG
>> Replace AV control unit.
No A/C Display is Shown
AKS004OR
1.
CHECK HARNESS
1.
Disconnect connectors of A/C auto amp. and AV control unit.
2.
Check continuity between A/C auto amp. harness connector
M119 terminal 9 (W) and AV control unit harness connector M77
terminal 44 (W).
3.
Check continuity between A/C auto amp. harness connector
M119 terminal 20 (B) and AV control unit harness connector
M77 terminal 45 (B).
4.
Check continuity between AV control unit harness connector
M77 terminals 44 (W), 45 (B) and ground.
Ok or NG
OK
>> GO TO 2.
NG
>>
●
Check connector housings for disconnected or loose terminals.
●
Repair harness or connector.
2.
CHECK A/C-AV, AC-CLK COMMUNICATION SIGNAL
1.
Connect A/C auto amp. connector.
2.
Turn ignition switch ON.
3.
Check voltage between AV control unit harness connector M77
terminals 44 (W), 45 (B) and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Replace A/C auto amp.
15 (G) - 10
: Refer to
Reference Value for AV Control
Unit"
.
PKIA6797E
Continuity should exist.
Continuity should exist.
Continuity should not exist.
SKIA3744E
Approx. 5V
SKIA3745E
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