2005 INFINITI QX4 navigation system

NAVIGATION SYSTEM
AV-137
C
D
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MA
B
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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F
G
H
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J
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MA
B
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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MA
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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

NAVIGATION SYSTEM
AV-143
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MA
B
AV
Revision: October 20052005 QX56
Screen is Not ShownEKS00BKO
1. POWER SUPPLY AND GROUND CIRCUIT CHECK
Check power supply and ground circuit for display unit. Refer to AV- 11 8 , "
Power Supply and Ground Circuit
Check for Display Unit" .
OK or NG
OK >> Replace display unit. Refer to AV-158, "Removal and Installation of Display Unit" .
NG >> Check the malfunctioning parts.
A/C Screen is Not Shown (NAVI Screen is Shown)EKS00BKP
1. CHECK IGNITION SIGNAL
Check ignition signal. Refer to AV- 1 2 4 , "
Ignition Signal Check for Display Control Unit" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2. CHECK CAN COMMUNICATION LINE
Check CAN communication line. Refer to AV- 1 3 1 , "
CAN Communication Line Check" .
OK or NG
OK >> Replace display control unit. Refer to AV-158, "Removal and Installation of Display Control Unit" .
NG >> After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO LAN-5, "
CAN COMMUNI-
CATION" .
FUEL ECONOMY Screen is Not ShownEKS00BKQ
1. CHECK IGNITION SIGNAL
Check ignition signal. Refer to AV- 1 2 4 , "
Ignition Signal Check for Display Control Unit" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2. CHECK CAN COMMUNICATION LINE
Check CAN communication line. Refer to AV- 1 3 1 , "
CAN Communication Line Check" .
OK or NG
OK >> Replace display control unit. Refer to AV-158, "Removal and Installation of Display Control Unit" .
NG >> After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO LAN-5, "
CAN COMMUNI-
CATION" .
Average Fuel Economy Displayed is Not Shown (“ *** ” is Shown)EKS00BKR
1. CHECK VEHICLE SPEED SIGNAL
Check vehicle speed signal. Refer to AV-122, "
Vehicle Speed Signal Check for Display Control Unit" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2. CHECK CAN COMMUNICATION LINE
Check CAN communication line. Refer to AV- 1 3 1 , "
CAN Communication Line Check" .
OK or NG
OK >> Replace display control unit. Refer to AV-158, "Removal and Installation of Display Control Unit" .
NG >> After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO LAN-5, "
CAN COMMUNI-
CATION" .

AV-144
NAVIGATION SYSTEM
Revision: October 20052005 QX56
Distance to Empty Displayed is Not Shown (“ *** ” is Shown)EKS00BKS
1. CHECK SPEEDOMETER
Confirm that speedometer is functioning.
Is speedometer functioning?
YES >> GO TO 2.
NO >> Refer to DI-19, "
Vehicle Speed Signal Inspection" .
2. CHECK FUEL GAUGE
Confirm that fuel gauge is functioning.
Is fuel gauge functioning?
YES >> GO TO 3.
NO >> Refer to DI-22, "
Fuel Level Sensor Unit Inspection" .
3. CHECK CAN COMMUNICATION LINE
Check CAN communication line. Refer to AV-131, "
CAN Communication Line Check" .
OK or NG
OK >> Replace display control unit. Refer to AV- 1 5 8 , "Removal and Installation of Display Control Unit" .
NG >> After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO LAN-5, "
CAN COMMUNI-
CATION" .
Driving Distance or Average Speed Displayed is Not Shown (“ *** ” is Shown)EKS00BKT
1. CHECK IGNITION SIGNAL
Check ignition signal. Refer to AV-124, "
Ignition Signal Check for Display Control Unit" .
OK or NG
OK >> GO TO 2.
NG >> After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO LAN-5, "
CAN COMMUNI-
CATION" .
2. CHECK VEHICLE SPEED SIGNAL
Check vehicle speed signal. Refer to AV- 1 2 2 , "
Vehicle Speed Signal Check for Display Control Unit" .
OK or NG
OK >> Replace display control unit. Refer to AV- 1 5 8 , "Removal and Installation of Display Control Unit" .
NG >> Check the malfunctioning parts.
WARNING DOOR OPEN Screen is Not ShownEKS00BKU
1. CHECK IGNITION SIGNAL
Check ignition signal. Refer to AV-124, "
Ignition Signal Check for Display Control Unit" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2. CHECK VEHICLE SPEED SIGNAL
Check vehicle speed signal. Refer to AV- 1 2 2 , "
Vehicle Speed Signal Check for Display Control Unit" .
OK or NG
OK >> GO TO 3.
NG >> Check the malfunctioning parts.