INFINITI QX56 2006 Factory Service Manual

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
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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
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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
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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" .

AV-154
NAVIGATION SYSTEM
Revision: November 20092006 QX56
Distance to Empty Displayed is Not Shown (“ *** ” is Shown)EKS00GF1
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- 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" .
Driving Distance or Average Speed Displayed is Not Shown (“ *** ” is Shown)EKS00GF2
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 >> After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO LAN-26, "
CAN COMMUNI-
CATION" .
2. 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 >> Replace display control unit. Refer to AV- 1 6 7 , "DISPLAY CONTROL UNIT" .
NG >> Check the malfunctioning parts.
WARNING DOOR OPEN Screen is Not ShownEKS00GF3
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 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 3.
NG >> Check the malfunctioning parts.

NAVIGATION SYSTEMAV-155
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Revision: November 2009 2006 QX56
3. 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" .
Unable to Operate All of AV Switches (Unable to Start Self-Diagnosis)EKS00GF4
1. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit for AV switch. Refer to AV- 1 3 0 , "
Power Supply and Ground Circuit
Check for AV Switch" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2. AV SWITCH SELF-DIAGNOSIS
AV switch self-diagnosis. Refer to AV- 1 2 5 , "
AV Switch Self-Diagnosis Function" .
OK or NG
OK >> GO TO 3.
NG >> Check the malfunctioning parts.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit for display control unit. Refer to AV- 1 2 7 , "
Power Supply and Ground
Circuit Check for Display Control Unit" .
OK or NG
OK >> GO TO 4.
NG >> Check the malfunctioning parts.
4. CHECK COMMUNICATION LINE
Check communication line. Refer to AV- 1 3 9 , "
AV Communication Line Check (Between Display Control Unit
and AV Switch)" .
OK or NG
OK >> Replace AV switch. Refer to AV- 1 6 7 , "AV S W I T C H" .
NG >> Replace display control unit. Refer to AV- 1 6 7 , "
DISPLAY CONTROL UNIT" .
Audio Does Not WorkEKS00GF5
Refer to AV- 3 2 , "Trouble Diagnosis" .
Navigation System Does Not ActivateEKS00GF6
1. POWER SUPPLY AND GROUND CIRCUIT CHECK
Check power supply and ground circuit for NAVI control unit. Refer to AV- 1 2 6 , "
Power Supply and Ground Cir-
cuit Check for NAVI Control Unit" .
OK or NG
OK >> Replace NAVI control unit. Refer to AV- 1 6 8 , "NAVI CONTROL UNIT" .
NG >> Check the malfunctioning parts.

AV-156
NAVIGATION SYSTEM
Revision: November 20092006 QX56
Previous NAVI Conditions are Not StoredEKS00GF7
1. CHECK BATTERY POWER
Check NAVI control unit battery power.
Refer to AV- 1 2 6 , "
Power Supply and Ground Circuit Check for NAVI Control Unit" .
OK or NG
OK >> Replace NAVI control unit. Refer to AV- 1 6 8 , "NAVI CONTROL UNIT" .
NG >> Check NAVI control unit battery power system harness.
Previous Vehicle Conditions are Not StoredEKS00GF8
1. CHECK BATTERY POWER
Check display control unit battery power.
Refer to AV- 1 2 7 , "
Power Supply and Ground Circuit Check for Display Control Unit" .
OK or NG
OK >> Replace display control unit. Refer to AV- 1 6 7 , "DISPLAY CONTROL UNIT" .
NG >> Check display control unit battery power system harness.
Position of Current Location Mark is Not CorrectEKS00GF9
1. SELF-DIAGNOSIS
Perform “Self-diagnosis mode ” of the self-diagnosis function. Refer to AV- 11 4 , "
Self-Diagnosis Mode (NAVI)" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2. ERROR HISTORY DIAGNOSIS
Was any error stored in AV- 1 2 0 , "
ERROR HISTORY" of the "CONFIRMATION/ADJUSTMENT" mode?
YES or NO
YES >> AV- 1 2 0 , "DIAGNOSIS BY ERROR HISTORY".
NO >> AV- 1 5 7 , "
Driving Test".
Radio Wave From GPS Satellite is Not ReceivedEKS00GFA
1. CHECK ENVIRONMENT
Check if any metal object that intercepts radio waves or an object that emits radio waves (such as a portable
phone) is located near the GPS antenna. Check if the vehicle is shielded by a building.
OK or NG
OK >> System is not malfunctioning. The GPS antenna may not be able to receive radio waves from the GPS satellite if it is shielded by metal object or an object emitting radio waves is placed near it.
NG >> GO TO 2.
2. SELF-DIAGNOSIS
Perform “Self-diagnosis mode ” of the self-diagnosis function. Refer to AV- 11 4 , "
Self-Diagnosis Mode (NAVI)" .
OK or NG
OK >> Replace GPS antenna. Refer to AV- 1 6 7 , "GPS ANTENNA" .
NG >> Check the malfunctioning parts.

NAVIGATION SYSTEMAV-157
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Revision: November 2009 2006 QX56
Driving TestEKS00GFB
1. DRIVING TEST 1
1. Scroll the map screen to display the area to make correction. Press “ENTER” and select “CURRENT
LOCATION CORRECTION ”.
2. Correct direction of the vehicle mark.
3. Perform the distance correction of the "CONFIRMATION/ADJUSTMENT" mode. Note: Normally, adjustment is not necessary because this system has automatic distance correction func-
tion. However, when a tire chain is fitted, adjustment in accordance with the tire diameter ratio must be
made.
4. Are symptoms malfunctioning to the AV- 1 5 8 , "
Example of Symptoms Judged Not Malfunction" after driv-
ing the vehicle?
YES or NO
YES >> Limit of the location detection capacity of the navigation system.
NO >> GO TO 2.
2. DRIVING TEST 2

Did any malfunction occur when the proper test in the following test patterns is performed?

Test pattern
Driving test finds the difference between the symptoms monitored with and without each sensor.
–Test pattern 1: Test method with no GPS location correction
Disconnect GPS antenna connector connected to the NAVI control unit. Accurately adjust the current
location and the direction, then drive the vehicle.
–Test pattern 2: Test method with no map-matching
Accurately adjust the current location and the direction. Eject the map DVD-ROM from the NAVI control
unit with ignition switch turned to OFF, then drive the vehicle. After driving, insert the map DVD-ROM back
in the unit, display the track of the vehicle on the map screen and compare it with the actual road configu-
ration.

Sample tests
–<To determine if the current-location mark skips at the same position, if so, whether it is caused by map-
matching or by GPS>
Perform test pattern 1.
–<To determine if the pattern of streets displayed is correct or not>
Perform test pattern 1 & 2.
Compare the track of the vehicle on the map screen and the actual road configuration. For fairly accurate
tracking, plotting shall be made every several hundred meters (feet).
–<When the distance is adjusted accurately>
Perform test pattern 1 & 2.
Drive on a road of which distance is accurately known (by utilizing distance posts on a highway). Calculate
the rate of change (increased/decreased) of the distance by comparing with the actual distance.
Correction = A/B
A: Distance shown on the screen
B: Actual distance
YES or NO
YES >>
If adjustment is insufficient, perform adjustment again.

If any error is found in the map, please contact map data supplier. Refer to Navigation System
Owner's Manual for contact information.

Replace NAVI control unit. Refer to AV- 1 6 8 , "NAVI CONTROL UNIT" .
NO >> Limit of the location detection capacity of the navigation system.