2006 INFINITI QX56 ignition

AV-146
NAVIGATION SYSTEM
Revision: November 20092006 QX56
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 B152 termi- nal 46 and 47 with CONSULT-ll or oscilloscope.

When the screen looks yellowish.
Voltage signal between NAVI control unit connector B152 termi-
nal 46 and 47.
OK or NG
OK >> Replace display control unit. Refer to AV- 1 6 7 , "DISPLAY CONTROL UNIT" .
NG >> Replace NAVI control unit. Refer to AV- 1 6 8 , "
NAVI CONTROL UNIT" .
Color of RGB Image is Not Proper (All Screens Look Bluish)EKS00GES
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. 46 - 47
: Refer to AV- 1 0 0 , "
Terminals
and Reference Value for
NAVI Control Unit" .
WKIA4220E
Terminals
Continuity
Display control unit Display unit
Connector Terminal Connector Terminal
M95 50
M93 17
Ye s
47 7
Terminals Continuity
Display control unit
—
Connector Terminal
M95 50
GroundNo
47
SKIA4353E

NAVIGATION SYSTEMAV-147
C
DE
F
G H
I
J
L
M A
B
AV
Revision: November 2009 2006 QX56
2. CHECK RGB SIGNAL
1. Connect display control unit connector and display unit connec- tor.
2. Turn ignition switch ON.
3. Display “Color bar” by “CONFIRMATION/ADJUSTMENT ” mode.
4. Check the following with CONSULT-ll or oscilloscope.

When the screen looks bluish.
Voltage signal between display control unit connector M95 ter-
minal 50 and 47.
OK or NG
OK >> Replace display unit. Refer to AV- 1 6 7 , "DISPLAY UNIT" .
NG >> Replace display control unit. Refer to AV- 1 6 7 , "
DISPLAY CONTROL UNIT" .
Color of RGB Image is Not Proper (All Screens Look Reddish)EKS00GET
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. 50 - 47
: Refer to AV- 1 0 2 , "
Te r m i n a l s
and Reference Value for Dis-
play Control unit" .
SKIA4697E
Terminals
Continuity
Display control unit Display unit
Connector Terminal Connector Terminal
M95 52
M93 6
Ye s
47 7
Terminals Continuity
Display control unit
—
Connector Terminal
M95 52
GroundNo
47
SKIA4354E

AV-148
NAVIGATION SYSTEM
Revision: November 20092006 QX56
2. CHECK RGB SIGNAL
1. Connect display control unit connector and display unit connec- tor.
2. Turn ignition switch ON.
3. Display “Color bar” by “CONFIRMATION/ADJUSTMENT ” mode.
4. Check the following with CONSULT-ll or oscilloscope.

When the screen looks reddish.
Voltage signal between display control unit connector M95 ter-
minal 52 and 47.
OK or NG
OK >> Replace display unit. Refer to AV- 1 6 7 , "DISPLAY UNIT" .
NG >> Replace display control unit. Refer to AV- 1 6 7 , "
DISPLAY CONTROL UNIT" .
Color of RGB Image is Not Proper (All Screens Look Yellowish)EKS00GEU
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. 52 - 47
: Refer to AV- 1 0 2 , "
Terminals
and Reference Value for Dis-
play Control unit" .
SKIA4698E
Terminals
Continuity
Display control unit Display unit
Connector Terminal Connector Terminal
M95 54
M93 18
Ye s
47 7
Terminals Continuity
Display control unit
—
Connector Terminal
M95 54
GroundNo
47
SKIA4355E

NAVIGATION SYSTEMAV-149
C
DE
F
G H
I
J
L
M A
B
AV
Revision: November 2009 2006 QX56
2. CHECK RGB SIGNAL
1. Connect display control unit connector and display unit connec- tor.
2. Turn ignition switch ON.
3. Display “Color bar” by “CONFIRMATION/ADJUSTMENT ” mode.
4. Check the following with CONSULT-ll or oscilloscope.

When the screen looks yellowish.
Voltage signal between display control unit connector M95 ter-
minal 54 and 47.
OK or NG
OK >> Replace display unit. Refer to AV- 1 6 7 , "DISPLAY UNIT" .
NG >> Replace display control unit. Refer to AV- 1 6 7 , "
DISPLAY CONTROL UNIT" .
54 - 47 : Refer to
AV- 1 0 2 , "
Te r m i n a l s
and Reference Value for Dis-
play Control unit" .
SKIA4356E

AV-150
NAVIGATION SYSTEM
Revision: November 20092006 QX56
NAVI Screen is RollingEKS00GEV
1. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector B152 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 48 and 49 with CONSULT-ll or oscilloscope.
OK or NG
OK >> GO TO 3.
NG >> Replace NAVI control unit. Refer to AV- 1 6 8 , "
NAVI CONTROL UNIT" .
Terminals
Continuity
BA
Connector Terminal Connector Terminal
NAVI control unit: B152 48 Display con-
trol unit:M95 43
Ye s
49 41
Terminals Continuity
B
—
Connector Terminal
NAVI control unit: B152 48
GroundNo
49
WKIA4224E
48 - 49 : Refer to AV- 1 0 0 , "Terminals
and Reference Value for
NAVI Control Unit" .
WKIA4225E

NAVIGATION SYSTEMAV-151
C
DE
F
G H
I
J
L
M A
B
AV
Revision: November 2009 2006 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 connec- tor.
2. Turn ignition switch ON.
3. Check signal between display unit connector M93 terminals 19 and 21 with CONSULT-ll or oscilloscope.
OK or NG
OK >> Replace display unit. Refer to AV- 1 6 7 , "DISPLAY UNIT"
.
NG >> Replace display control unit. Refer to .
Terminals
Continuity
Display control unit Display unit
Connector Terminal Connector Terminal
M95 56
M93 19
Ye s
49 21
Terminals Continuity
Display control unit
—
Connector Terminal
M95 56
Ground No
49
WKIA2775E
19 - 21 : Refer to AV- 1 0 2 , "Te r m i n a l s
and Reference Value for Dis-
play Control unit" .
WKIA2022E

AV-152
NAVIGATION SYSTEM
Revision: November 20092006 QX56
Guide Sound is Not HeardEKS00GEW
1. CHECK VOICE GUIDE SETTING
While driving in the dark pink route, voice guide does not operate. (note)
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.
Is volume setting switched OFF?
YES >> Switch the setting ON and turn the volume up.
NO >> GO TO 2.
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 12 and 14 with CONSULT-ll or oscilloscope.
OK or NG
OK >> Replace audio unit. Refer to AV- 5 5 , "AUDIO UNIT" .
NG >> Replace NAVI control unit. Refer to AV- 1 6 8 , "
NAVI CON-
TROL UNIT" .
Terminals
Continuity
BA
Connector Terminal Connector Terminal
NAVI control unit: B151 12
Audio unit:
M45 71
Ye s
14 69
Terminals Continuity
B
—
Connector Terminal (Wire color)
NAVI control unit: B151 12
GroundNo
14
WKIA4226E
12 - 14 : Refer to AV- 1 0 0 , "Terminals
and Reference Value for
NAVI Control Unit" .
WKIA4227E

NAVIGATION SYSTEMAV-153
C
DE
F
G H
I
J
L
M A
B
AV
Revision: November 2009 2006 QX56
Screen is Not ShownEKS00GEX
1. POWER SUPPLY AND GROUND CIRCUIT CHECK
Check power supply and ground circuit for display unit. Refer to AV- 1 2 8 , "
Power Supply and Ground Circuit
Check for Display Unit" .
OK or NG
OK >> Replace display unit. Refer to AV- 1 6 7 , "DISPLAY UNIT" .
NG >> Check the malfunctioning parts.
A/C Screen is Not Shown (NAVI Screen is Shown)EKS00GEY
1. CHECK IGNITION SIGNAL
Check ignition signal. Refer to AV- 1 3 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 4 0 , "
CAN Communication Line Check" .
OK or NG
OK >> Replace display control unit. Refer to AV- 1 6 7 , "DISPLAY CONTROL UNIT" .
NG >> After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO LAN-26, "
CAN COMMUNI-
CATION" .
FUEL ECONOMY Screen is Not ShownEKS00GEZ
1. CHECK IGNITION SIGNAL
Check ignition signal. Refer to AV- 1 3 3 , "
Illumination 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 4 0 , "
CAN Communication Line Check" .
OK or NG
OK >> Replace display control unit. Refer to AV- 1 6 7 , "DISPLAY CONTROL UNIT" .
NG >> After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO LAN-26, "
CAN COMMUNI-
CATION" .
Average Fuel Economy Displayed is Not Shown (“ *** ” is Shown)EKS00GF0
1. CHECK VEHICLE SPEED SIGNAL
Check vehicle speed signal. Refer to AV- 1 3 2 , "
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 4 0 , "
CAN Communication Line Check" .
OK or NG
OK >> Replace display control unit. Refer to AV- 1 6 7 , "DISPLAY CONTROL UNIT" .
NG >> After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO LAN-26, "
CAN COMMUNI-
CATION" .