ignition INFINITI QX4 2005 Factory Service Manual

NAVIGATION SYSTEM
AV-133
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Revision: October 20052005 QX56
2. CHECK HORIZONTAL SYNCHRONIZATION SIGNAL
1. Connect display control unit connector and display unit connector.
2. Turn ignition switch ON.
3. Check signal between display control unit connector M95 termi-
nals 55 (R) and 49 with CONSULT-II or oscilloscope.
OK or NG
OK >> GO TO 3.
NG >> Replace display unit. Refer to AV-158, "
Removal and
Installation of Display Unit" .
3. CHECK VERTICAL SYNCHRONIZATION SIGNAL
1. Turn ignition switch ON.
2. Check signal between display control unit connector M95 termi-
nals 53 (W) and 49 with CONSULT-II or oscilloscope.
OK or NG
OK >> GO TO 4.
NG >> Replace display unit. Refer to AV-158, "
Removal and
Installation of Display Unit" .
4. CHECK RGB AREA SIGNAL
1. Press the “TRIP” button.
2. Check signal between display control unit connector M95 termi-
nals 51 (B) and 49 with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace display unit. Refer to AV-158, "Removal and
Installation of Display Unit" .
NG >> Replace display control unit. Refer to AV-158, "
Removal
and Installation of Display Control Unit" . 55 (R) - 49 : Refer to AV- 9 2 , "
Terminals and Refer-
ence Value for Display Control unit" .
SKIA4305E
53 (W) - 49 : Refer to AV- 9 2 , "Terminals and Refer-
ence Value for Display Control unit" .
WKIA1773E
51 (B) – 49 : Refer to AV- 9 2 , "Terminals and Refer-
ence Value for Display Control unit" .
SKIA4306E

AV-134
NAVIGATION SYSTEM
Revision: October 20052005 QX56
Color of RGB Image is Not Proper (Only NAVI Screen Looks Bluish)EKS00BKG
1. CHECK RGB HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector B151 and display control unit connector M95.
3. Check continuity between NAVI control unit and display control unit.
4. Check continuity between NAVI control unit and ground.

When the screen looks bluish.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK RGB SIGNAL
1. Connect NAVI control unit connector and display control unit connector.
2. Turn ignition switch ON.
3. Display “Color bar” by “CONFIRMATION/ADJUSTMENT” mode.
4. Check signal between NAVI control unit connector B151 termi-
nal 18 (R) and 17 with CONSULT-II or oscilloscope.

When the screen looks bluish.
Voltage signal between NAVI control unit connector B151 termi-
nal 18 (R) and 17.
OK or NG
OK >> Replace display control unit. Refer to AV- 1 5 8 , "Removal
and Installation of Display Control Unit" .
NG >> Replace NAVI control unit. Refer to AV- 1 5 7 , "
Removal and Installation of NAVI Control Unit" .
Te r m i n a l s
Continuity NAVI control unit Display control unit
ConnectorTerminal
(Wire color)ConnectorTe r m i n a l
(Wire color)
B15118 (R)
M9544 (R/L)
Ye s
17 45
Te r m i n a l s
Continuity NAVI control unit
—
Connector Terminal (Wire color)
B15118 (R)
Ground No
17
SKIA4349E
18 (R) – 17 : Refer to AV- 9 0 , "Te r m i n a l s
and Reference Value for
NAVI Control unit" .
SKIA4629E

NAVIGATION SYSTEM
AV-135
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AV
Revision: October 20052005 QX56
Color of RGB Image is Not Proper (Only NAVI Screen Looks Reddish)EKS00BKH
1. CHECK RGB HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector B151 and display control unit connector M95.
3. Check continuity between NAVI control unit and display control unit.
4. Check continuity between NAVI control unit and ground.

When the screen looks reddish.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK RGB SIGNAL
1. Connect NAVI control unit connector and display control unit connector.
2. Turn ignition switch ON.
3. Display ″Color bar″ by ″CONFIRMATION/ADJUSTMENT″ mode.
4. Check signal between NAVI control unit connector B151 termi-
nal 21 (R/W) and 17 with CONSULT-II or oscilloscope.

When the screen looks reddish.
Voltage signal between NAVI control unit connector B151 termi-
nal 21 (R/W) and 17.
OK or NG
OK >> Replace display control unit. Refer to AV-158, "Removal
and Installation of Display Control Unit" .
NG >> Replace NAVI control unit. Refer to AV-157, "
Removal and Installation of NAVI Control Unit" .
Te r m i n a l s
Continuity NAVI control unit Display control unit
ConnectorTe r m i n a l
(Wire color)ConnectorTerminal
(Wire color)
B15121 (R/W)
M9546 (R/W)
Ye s
17 45
Te r m i n a l s
Continuity NAVI control unit
—
Connector Terminal (Wire color)
B15121 (R/W)
Ground No
17
SKIA4350E
21 (R/W) – 17 : Refer to AV-90, "Te r m i na l s
and Reference Value for
NAVI Control unit" .
SKIA4630E

AV-136
NAVIGATION SYSTEM
Revision: October 20052005 QX56
Color of RGB Image is Not Proper (Only NAVI Screen Looks Yellowish)EKS00BKI
1. CHECK RGB HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector B151 and display control unit connector M95.
3. Check continuity between NAVI control unit and display control unit.
4. Check continuity between NAVI control unit and ground.

When the screen looks yellowish.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK RGB SIGNAL
1. Connect NAVI control unit connector and display control unit connector.
2. Turn ignition switch ON.
3. Display ″Color bar″ by ″CONFIRMATION/ADJUSTMENT″ mode.
4. Check signal between NAVI control unit connector B151 termi-
nal 15 (B) and 17 with CONSULT-II or oscilloscope.

When the screen looks yellowish.
Voltage signal between NAVI control unit connector B151 termi-
nal 15 (B) and 17.
OK or NG
OK >> Replace display control unit. Refer to AV- 1 5 8 , "Removal
and Installation of Display Control Unit" .
NG >> Replace NAVI control unit. Refer to AV- 1 5 7 , "
Removal and Installation of NAVI Control Unit" .
Te r m i n a l s
Continuity NAVI control unit Display control unit
ConnectorTerminal
(Wire color)ConnectorTe r m i n a l
(Wire color)
B15115 (B)
M9548 (B)
Ye s
17 45
Te r m i n a l s
Continuity NAVI control unit
—
Connector Terminal (Wire color)
B15115 (B)
Ground No
17
SKIA4351E
15 (B) – 17 : Refer to AV- 9 0 , "Te r m i n a l s
and Reference Value for
NAVI Control unit" .
SKIA4631E

NAVIGATION SYSTEM
AV-137
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AV
Revision: October 20052005 QX56
Color of RGB Image is Not Proper (All Screen Looks Bluish)EKS00BKJ
1. CHECK RGB HARNESS
1. Turn ignition switch OFF.
2. Disconnect display control unit connector M95 and display unit connector M93.
3. Check continuity between display control unit and display unit.
4. Check continuity between display control unit and ground.

When the screen looks bluish.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK RGB SIGNAL
1. Connect display control unit connector and display unit 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 display control unit connector M95 ter-
minal 50 (R/L) and 47.
OK or NG
OK >> Replace display unit. Refer to AV-158, "Removal and
Installation of Display Unit" .
NG >> Replace display control unit. Refer to AV-158, "
Removal and Installation of Display Control Unit" .
Te r m i n a l s
Continuity Display control unit Display unit
ConnectorTe r m i n a l
(Wire color)ConnectorTerminal
(Wire color)
M9550 (R/L)
M9317 (R/L)
Ye s
47 7
Te r m i n a l s
Continuity Display control unit
—
Connector Terminal (Wire color)
M9550 (R/L)
Ground No
47
SKIA4353E
50 (R/L) – 47 : Refer to AV-92, "Te r m i na l s
and Reference Value for Dis-
play Control unit" .
SKIA4697E

AV-138
NAVIGATION SYSTEM
Revision: October 20052005 QX56
Color of RGB Image is Not Proper (All Screen Looks Reddish)EKS00BKK
1. CHECK RGB HARNESS
1. Turn ignition switch OFF.
2. Disconnect display control unit connector M95 and display unit connector M93.
3. Check continuity between display control unit and display unit.
4. Check continuity between display control unit and ground.

When the screen looks reddish.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK RGB SIGNAL
1. Connect display control unit connector and display unit 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 reddish.
Voltage signal between display control unit connector M95 ter-
minal 52 (R/W) and 47.
OK or NG
OK >> Replace display unit. Refer to AV- 1 5 8 , "Removal and
Installation of Display Unit" .
NG >> Replace display control unit. Refer to AV- 1 5 8 , "
Removal and Installation of Display Control Unit" .
Te r m i n a l s
Continuity Display control unit Display unit
ConnectorTerminal
(Wire color)ConnectorTe r m i n a l
(Wire color)
M9552 (R/W)
M936 (R/W)
Ye s
47 7
Te r m i n a l s
Continuity Display control unit
—
Connector Terminal (Wire color)
M9552 (R/W)
Ground No
47
SKIA4354E
52 (R/W) – 47 : Refer to AV- 9 2 , "Te r m i n a l s
and Reference Value for Dis-
play Control unit" .
SKIA4698E

NAVIGATION SYSTEM
AV-139
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AV
Revision: October 20052005 QX56
Color of RGB Image is Not Proper (All Screen Looks Yellowish)EKS00BKL
1. CHECK RGB HARNESS
1. Turn ignition switch OFF.
2. Disconnect display control unit connector M95 and display unit connector M93.
3. Check continuity between display control unit and display unit.
4. Check continuity between display control unit and ground.

When the screen looks yellowish.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK RGB SIGNAL
1. Connect display control unit connector and display unit 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 yellowish.
Voltage signal between display control unit connector M95 ter-
minal 54 (B) and 47.
OK or NG
OK >> Replace display unit. Refer to AV-158, "Removal and
Installation of Display Unit" .
NG >> Replace display control unit. Refer to AV-158, "
Removal and Installation of Display Control Unit" .
Te r m i n a l s
Continuity Display control unit Display unit
ConnectorTe r m i n a l
(Wire color)ConnectorTerminal
(Wire color)
M9554 (B)
M9318 (B)
Ye s
47 7
Te r m i n a l s
Continuity Display control unit
—
Connector Terminal (Wire color)
M9554 (B)
Ground No
47
SKIA4355E
54 (B) – 47 : Refer to AV-92, "Te r m i na l s
and Reference Value for Dis-
play Control unit" .
SKIA4356E

AV-140
NAVIGATION SYSTEM
Revision: October 20052005 QX56
NAVI Screen is RollingEKS00BKM
1. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector B151 and display control unit connector M95.
3. Check continuity between NAVI control unit and display control unit.
4. Check continuity between NAVI control unit and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness.
2. CHECK RGB SYNCHRONIZING SIGNAL
1. Connect NAVI control unit connector and display control unit connector.
2. Turn ignition switch ON.
3. Check signal between NAVI control unit connector M95 termi-
nals 16 (BR) and 14 with CONSULT-II or oscilloscope.
OK or NG
OK >> GO TO 3.
NG >> Replace NAVI control unit. Refer to AV- 1 5 7 , "
Removal
and Installation of NAVI Control Unit" .
Te r m i n a l s
Continuity NAVI control unit Display control unit
ConnectorTerminal
(Wire color)ConnectorTe r m i n a l
(Wire color)
B15116 (BR)
M9543 (W)
Ye s
14 41
Te r m i n a l s
Continuity NAVI control unit
—
Connector Terminal (Wire color)
B15116 (BR)
Ground No
14
WKIA2020E
16 (BR) – 14 : Refer to AV-90, "Terminals
and Reference Value for
NAVI Control unit" .
SKIA4358E

NAVIGATION SYSTEM
AV-141
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AV
Revision: October 20052005 QX56
3. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect display control unit connector M95 and display unit connector M93.
3. Check continuity between display control unit and display unit.
4. Check continuity between display control unit and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness.
4. CHECK RGB SYNCHRONIZING SIGNAL
1. Connect display control unit connector and display unit connector.
2. Turn ignition switch ON.
3. Check signal between display unit connector M93 terminals 19
(G) and 21 with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace display unit. Refer to AV-158, "Removal and
Installation of Display Unit" .
NG >> Replace display control unit. Refer to AV-158, "
Removal
and Installation of Display Control Unit" .
Te r m i n a l s
Continuity Display control unit Display unit
ConnectorTe r m i n a l
(Wire color)ConnectorTerminal
(Wire color)
M9556 (G)
M9319 (G)
Ye s
49 21
Te r m i n a l s
Continuity Display control unit
—
Connector Terminal (Wire color)
M9556 (G)
Ground No
49
WKIA1775E
19 (G) – 21 : Refer to AV- 9 2 , "Terminals
and Reference Value for Dis-
play Control unit" .
WKIA2022E

AV-142
NAVIGATION SYSTEM
Revision: October 20052005 QX56
Guide Sound is Not HeardEKS00BKN
1. CHECK VOICE GUIDE SETTING

While driving in the dark pink route, voice guide does not operate. (note)

Is volume setting not switched ON?
NOTE:
Voice guide is only available at intersections that satisfy certain conditions (indicated by
on the map). There-
fore, guidance may not be given even when the route on the map changes direction.
Ye s o r N o
YES >> GO TO 2.
NO >> Switch the setting ON and turn the volume up.
2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector B151 and audio unit connector M45.
3. Check continuity between NAVI control unit and audio unit.
4. Check continuity between NAVI control unit and ground.
Ok or NG
OK >> GO TO 3.
NG >> Repair harness.
3. CHECK VOICE GUIDE
1. Connect NAVI control unit connector and audio unit connector.
2. Turn ignition switch ON.
3. Check signal between NAVI control unit harness connector
B151 terminal 7 (B) and 8 (W) with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace audio unit. Refer to AV- 4 5 , "Removal and
Installation for Audio Unit" .
NG >> Replace NAVI control unit. Refer to AV- 1 5 7 , "
Removal
and Installation of NAVI Control Unit" .
Te r m i n a l s
Continuity NAVI control unit Audio unit
ConnectorTerminal
(Wire color)ConnectorTe r m i n a l
(Wire color)
B1517 (B)
M4571 (B)
Ye s
8 (W) 69 (W)
Te r m i n a l s
Continuity NAVI control unit
—
Connector Terminal (Wire color)
B1517 (B)
Ground No
8 (W)
WKIA1193E
7 (B) – 8 (W) : Refer to AV-90, "Terminals
and Reference Value for
NAVI Control unit" .
SKIA4362E