2004 INFINITI QX56 display

NAVIGATION SYSTEM
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Revision: August 20072004 QX56
3. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect display control unit connector and display unit connector.
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
WKIA2775E
19 (G) - 21 : Refer to AV- 9 6 , "Terminals
and Reference Value for Dis-
play unit" .
WKIA2022E

NAVIGATION SYSTEM
AV-143
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Revision: August 20072004 QX56
Screen is Not ShownEKS007MT
1. POWER SUPPLY AND GROUND CIRCUIT CHECK
Check power supply and ground circuit. 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)EKS007MV
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 ShownEKS007MW
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)EKS007MX
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: August 20072004 QX56
Distance to Empty Displayed is Not Shown (“ *** ” is Shown)EKS007MY
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)EKS007MZ
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 ShownEKS007N0
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.

NAVIGATION SYSTEM
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3. 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" .
Unable to Operate All of AV Switches (Unable to Start Self-Diagnosis)EKS007N1
1. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit. Refer to AV-120, "
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- 11 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. Refer to AV- 11 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 0 , "
AV Communication Line Check (Between Display Control Unit
and AV Switch)" .
OK or NG
OK >> Replace AV switch. Refer to AV-158, "Removal and Installation of AV Switch" .
NG >> Replace display control unit. Refer to AV-158, "
Removal and Installation of Display Control Unit" .
Audio Does Not WorkEKS007N2
Refer to AV-28, "Trouble Diagnosis" .
Navigation System Does Not ActivateEKS007N4
1. POWER SUPPLY AND GROUND CIRCUIT CHECK
Check power supply and ground circuit. Refer to AV-116, "
Power Supply and Ground Circuit Check for NAVI
Control Unit" .
OK or NG
OK >> Replace NAVI control unit. Refer to AV-157, "Removal and Installation of NAVI Control Unit" .
NG >> Check the malfunctioning parts.

AV-146
NAVIGATION SYSTEM
Revision: August 20072004 QX56
Previous NAVI Conditions are Not StoredEKS007N5
1. CHECK BATTERY POWER

Check NAVI control unit battery power.
Refer to AV- 11 6 , "
Power Supply and Ground Circuit Check for NAVI Control Unit" .
OK or NG
OK >> Replace NAVI control unit. Refer to AV- 1 5 7 , "Removal and Installation of NAVI Control Unit" .
NG >> Check NAVI control unit battery power system harness.
Previous Vehicle Conditions are Not StoredEKS007N6
1. CHECK BATTERY POWER

Check display control unit battery power.
Refer to AV- 11 7 , "
Power Supply and Ground Circuit 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 display control unit battery power system harness.
Position of Current Location Mark is Not CorrectEKS007N7
1. SELF-DIAGNOSIS

Perform “Self-diagnosis mode” of the self-diagnosis function. Refer to AV-104, "Self-Diagnosis Mode
(NAVI)" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2. HISTORY OF ERRORS DIAGNOSIS

Was any error stored in AV-110, "HISTORY OF ERRORS" of the CONFIRMATION/ADJUSTMENT
mode?
YES or NO
YES >>AV- 11 0 , "DIAGNOSIS BY HISTORY OF ERRORS".
NO >>AV-147, "
Driving Test".
Radio Wave From GPS Satellite is Not ReceivedEKS007N8
1. CHECK ENVIRONMENT

Check if any metal object that intercepts radio waves or an object that emits radio waves (such as a porta-
ble 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-104, "Self-Diagnosis Mode
(NAVI)" .
OK or NG
OK >> Replace GPS antenna. Refer to AV- 1 5 7 , "Removal and Installation of GPS Antenna" .
NG >> Check the malfunctioning parts.

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Revision: August 20072004 QX56
Driving TestEKS007N9
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-148, "
Example of Symptoms Judged Not Malfunction" present
after driving 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 (GT5) connected to the NAVI control unit. Accurately adjust the cur-
rent 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
– matching or by GPS>
Perform test pattern 1.
–
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).
–
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-157, "Removal and Installation of NAVI Control Unit" .
NO >> Limit of the location detection capacity of the navigation system.

AV-148
NAVIGATION SYSTEM
Revision: August 20072004 QX56
Example of Symptoms Judged Not MalfunctionEKS007NA
BASIC OPERATION
VEHICLE MARK
Symptom Cause Remedy
No image is shown. Display brightness adjustment is set fully to
DARK side.Adjust the display brightness.
No guide sound is heard.
Audio guide volume is too low or
too high.Volume control is set to OFF, MIN or MAX. Adjust the audio guide volume.
Audio guidance is not available while the vehicle
is driving on a dark pink route.System is not malfunctioning.
Screen is too dark.
Motion of the image is too slow.Temperature inside the vehicle is low. Wait until the temperature inside the vehicle
reaches the proper temperature.
Small black or bright spots appear
on the screen.Symptom peculiar to a liquid crystal display (dis-
play unit).System is not malfunction.
Symptom Cause Remedy
Map screen and BIRDVIEW™
Name of the place varies with the
screen.Some thinning of the character data is done to
prevent the display becoming to complex. In
some cases and in some locations, the display
contents may differ.
The same place name, street name, etc. may not
be displayed every time on account of the data
processing.System is not malfunctioning.
Vehicle mark is not positioned cor-
rectly.Vehicle is transferred by ferry or by towing after its
ignition switch is turned to OFF.Drive the vehicle for a while in the GPS sat-
ellite signal receiving condition.
Screen will not switch to nighttime
mode after the lighting switch is
turned ON.The daytime screen is selected by the “SWITCH
SCREENS” when the last time the screen dim-
ming setting is done.
Switching between daytime/nighttime screen may
be inhibited by the automatic illumination adjust-
ment function.Perform screen dimming and select the
nighttime screen by “SWITCH SCREENS”.
Map screen will not scroll in accor-
dance with the vehicle travel.Current location is not displayed. Press “MAP” button to display the current
location.
Vehicle mark will not be shown. Current location is not displayed. Press “MAP” button to display the current
location.
Accuracy indicator (GPS satellite
mark) on the map screen stays
gray.GPS satellite signal is intercepted because the
vehicle is in or behind a building.Move the vehicle out to an open space.
GPS satellite signal cannot be received because
an obstacle is placed on top of the instrument
panel.Do not place anything in the center on top of
the display.
GPS satellites are not visible from current loca-
tion.Wait until GPS satellites are visible by mov-
ing the vehicle.
Vehicle location accuracy is low. Accuracy indicator (GPS satellite mark) on the
map screen stays gray.Current location is not determined.
Vehicle speed setting by the vehicle speed pulse
has been deviated (advanced or retarded) from
the actual vehicle speed because tire chain is fit-
ted or the system has been used on another vehi-
cle.Drive the vehicle for a while [for approx. 30
minutes at approx. 30 km/h (19 MPH)] and
the deviation will be automatically adjusted.
If advancement or retard still occur, perform
the distance adjustment by CONFIRMA-
TION/ADJUSTMENT mode of diagnosis
function.
Map data has error or omission. (Vehicle mark is
always deviated to the same position.)As a rule, an updated map DVD–ROM will
be released once a year.

NAVIGATION SYSTEM
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Revision: August 20072004 QX56
DESTINATION, PASSING POINTS, AND MENU ITEMS CANNOT BE SELECTED/SET
VOICE GUIDE
Symptom Cause Remedy
Destination cannot be set. Destination to be set is on an expressway. Set the destination on an ordinary road.
Passing point is not searched
when re-searching the route.The vehicle has already passed the passing point,
or the system judged so.To include the passing points that have been
passed into the route again, set the route
again.
Route information will not be dis-
played.Route searching has not been done. Set the destination and perform route
searching.
Vehicle mark is not on the recommended route. Drive on the recommended route.
Route guide is turned OFF. Turn route guide ON.
Route information is not available on the dark pink
route.System is not malfunctioning.
After the route searching, no guide
sign will appear as the vehicle
goes near the entrance/exit to the
toll road.Vehicle mark is not on the recommended route.
(On the display, only guide signs related to the
recommended route will be shown.)Drive on the recommended route.
Automatic route searching is not
possible.Vehicle is driving on a highway (gray route), or no
recommended route is available.Drive on a road to be searched. Or re–
search the route manually. In this case, how-
ever, the whole route will be searched.
Performed automatic detour
search (or detour search). How-
ever, the result is the same as that
of the previous search.Performed search with every condition consid-
ered. However, the result is the same as that of
the previous search.System is not malfunctioning.
Passing points cannot be set. More than five passing points were set. Passing points can be set up to five. To stop
at more than five points, perform sharing in
several steps.
When setting the route, the start-
ing point cannot be selected.The current vehicle location is always set as the
starting point of a route.System is not malfunctioning.
Some menu items cannot be
selected.The vehicle is being driven. Stop the vehicle at a safe place and then
operate the system.
Symptom Cause Remedy
Voice guide will not operate. Note: Voice guide is only available at intersections
that satisfy certain conditions (indicated by
on
the map). Therefore, guidance may not be given
even when the route on the map changes direc-
tion.System is not malfunctioning.
The vehicle is not on the recommended route. Return to the recommended route or re-
search the route.
Voice guide is turned OFF. Turn voice guide ON.
Route guide is turned OFF. Turn route guide ON.
Voice guide does not match the
actual road pattern.Voice guide may vary with the direction to which
the vehicle is turned and the connection of the
road to other roads.Drive in conformity to the actual traffic rules.