2007 INFINITI QX56 service

NAVIGATION SYSTEM
AV-135
< SERVICE INFORMATION >
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3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit for display control unit. Refer to AV- 111 , "
Power Supply and Ground
Circuit Inspection 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-122, "
AV Communication Line Check (Between Display Control Unit
and AV Switch)".
OK or NG
OK >> Replace AV switch. Refer to AV-145, "Removal and Installation".
NG >> Replace display control unit. Refer to AV-145, "
Removal and Installation".
Audio Does Not WorkINFOID:0000000003533761
Refer to AV-29, "Trouble Diagnosis".
Navigation System Does Not ActivateINFOID:0000000003533762
1.POWER SUPPLY AND GROUND CIRCUIT CHECK
Check power supply and ground circuit for NAVI control unit. Refer to AV-110, "
Power Supply and Ground Cir-
cuit Inspection for NAVI Control Unit".
OK or NG
OK >> Replace NAVI control unit. Refer to AV-145, "Removal and Installation".
NG >> Check the malfunctioning parts.
Previous NAVI Conditions Are Not StoredINFOID:0000000003533763
1.CHECK BATTERY POWER
Check NAVI control unit battery power.
Refer to AV-110, "
Power Supply and Ground Circuit Inspection for NAVI Control Unit".
OK or NG
OK >> Replace NAVI control unit. Refer to AV-145, "Removal and Installation".
NG >> Check NAVI control unit battery power system harness.
Previous Vehicle Conditions Are Not StoredINFOID:0000000003533764
1.CHECK BATTERY POWER
Check display control unit battery power.
Refer to AV- 111 , "
Power Supply and Ground Circuit Inspection for Display Control Unit".
OK or NG
OK >> Replace display control unit. Refer to AV-145, "Removal and Installation".
NG >> Check display control unit battery power system harness.
Position of Current Location Mark Is Not CorrectINFOID:0000000003533765
1.SELF-DIAGNOSIS
Perform “Self-diagnosis mode” of the self-diagnosis function. Refer to AV-101, "
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-103, "
Confirmation/Adjustment Mode" of the "CONFIRMATION/ADJUSTMENT"
mode?

AV-136
< SERVICE INFORMATION >
NAVIGATION SYSTEM
YES or NO
YES >>AV-103, "Confirmation/Adjustment Mode".
NO >>AV-136, "
Driving Test".
Radio Wave from GPS Satellite Is Not ReceivedINFOID:0000000003533766
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-101, "
Self-Diagnosis Mode (NAVI)".
OK or NG
OK >> Replace GPS antenna. Refer to AV-145, "Removal and Installation".
NG >> Check the malfunctioning parts.
Driving TestINFOID:0000000003533767
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-137, "
Example of Symptom Judged Not Malfunction" 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 connected to the NAVI control unit. Accurately adjust the current loca-
tion 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 configuration.
• Sample tests
- matching or by GPS>
Perform test pattern 1.
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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).
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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.

NAVIGATION SYSTEM
AV-137
< SERVICE INFORMATION >
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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-145, "
Removal and Installation".
NO >> Limit of the location detection capacity of the navigation system.
Example of Symptom Judged Not MalfunctionINFOID:0000000003533768
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 pre-
vent 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 lo-
cation.
Vehicle mark will not be shown. Current location is not displayed. Press “MAP” button to display the current lo-
cation.
Accuracy indicator (GPS satellite
mark) on the map screen stays
gray.GPS satellite signal is intercepted because the ve-
hicle 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 pan-
el.Do not place anything in the center on top of
the display.
GPS satellites are not visible from current location. Wait until GPS satellites are visible by mov-
ing the vehicle.

AV-138
< SERVICE INFORMATION >
NAVIGATION SYSTEM
DESTINATION, PASSING POINTS, AND MENU ITEMS CANNOT BE SELECTED/SET
VOICE GUIDE
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. Symptom Cause Remedy
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
green 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 rec-
ommended 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, however, the
whole route will be searched.
Performed automatic detour
search (or detour search). Howev-
er, 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 starting
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 se-
lected.The vehicle is being driven. Stop the vehicle at a safe place and then op-
erate the system.

NAVIGATION SYSTEM
AV-139
< SERVICE INFORMATION >
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ROUTE SEARCH
NOTE:
Except for the ordinance-designated cities. (Malfunctioning areas may be changed in the updated map disc.)
EXAMPLES OF CURRENT-LOCATION MARK DISPLACEMENT
Symptom Cause Remedy
Voice guide will not operate. Note: Voice guide is only available at intersections
that satisfy certain conditions (indicated by l on the
map). Therefore, guidance may not be given even
when the route on the map changes direction.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 ac-
tual 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.
Symptom Cause Remedy
No route is shown. No road to be searched is found around the des-
tination.Find wider road (orange road or wider) near-
by and reset the destination and passing
points onto it. Take care of the traveling direc-
tion when there are separate up and down
roads.
Starting point and the destination are too close. Set the destination at more distant point.
Conditional traffic regulation (day of the week/
time of the day) is set at the area around the cur-
rent location or the destination.Turn the time-regulating search conditions
OFF. Turn “Avoid regulation time” in the
search conditions OFF.
Indicated route is intermittent. In some areas, highways (gray routes) are not
used for the search
(Note) Therefore, the route to
the current location or the passing points may be
intermittent.System is not malfunctioning.
When the vehicle has passed the
recommended route, it is deleted
from the screen.A recommended route is controlled by each sec-
tion. When the vehicle has passed the passing
point 1, then the map data from the starting point
up to the passing point 1 will be deleted. (The data
may remain undeleted in some areas.)System is not malfunctioning.
Detouring route is recommended. In some areas, highways (gray routes) are not
used for the search. (Note). Therefore, detour
route may be recommended.Set the route closer to the basic route (gray
route).
A detour route may be shown when some traffic
regulation (one-way traffic, etc.) is set at the area
around the starting point or the destination.Slightly move the starting point or the destina-
tion, or set the passing point on the route of
your choice.
In the area where highways (gray routes) are
used for the search, left turn has priority around
the current location and the destination (passing
points). For this reason, the recommended route
may be detouring.System is not malfunctioning.
Landmarks on the map do not
match the actual ones.This can be happen due to omission or error in
the map data.As a rule, an updated map DVD-ROM will be
released once a year. Wait until the latest
map has become available.
Recommended route is far from
the starting point, passing points,
and destination.Starting point, passing points, and destination of
the route guide were set far from the desired
points because route searching data around
these area were not stored.Reset the destination onto the road nearby. If
this road is one of the highways (gray routes),
an ordinary road nearby may be displayed as
the recommended route.

AV-140
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Vehicle's travel amount is calculated by reading its travel distance and turning angle. Therefore, if the vehicle
is driven in the following manner, an error will occur in the vehicle's current location display. If correct location
has not been restored after driving the vehicle for a while, perform location correction.
SEL698V

NAVIGATION SYSTEM
AV-141
< SERVICE INFORMATION >
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Cause (condition) –: While driving ooo: Display Driving condition Remarks (correction, etc.)
Road config-
urationY–intersections
At a Y intersection or similar gradual divi-
sion of roads, an error in the direction of
travel deduced by the sensor may result in
the current-location mark appearing on the
wrong road.
If after travelling about 10 km (6
miles) the correct location has
not been restored, perform lo-
cation correction and, if neces-
sary, direction correction. Spiral roads
When driving on a large, continuous spiral
road (such as loop bridge), turning angle
error is accumulated and the vehicle mark
may deviate from the correct location.
Straight roads
When driving on a long, straight road and
slow curve without stopping, map-matching
does not work effectively enough and dis-
tance errors may accumulate. As a result,
the vehicle mark may deviate from the cor-
rect location when the vehicle is turned at a
corner.
Zigzag roads
When driving on a zigzag road, the map
may be matched to other roads in the simi-
lar direction nearby at every turn, and the
vehicle mark may deviate from the correct
location.
Roads laid out in a grid pattern
When driving where roads are laid out in a
grid pattern, or where many roads are run-
ning in the similar direction nearby, the map
may be matched to them by mistake and
the vehicle mark may deviate from the cor-
rect location.
Parallel roads
When two roads are running in parallel
(such as highway and sideway), the map
may be matched to the other road by mis-
take and the vehicle mark may deviate from
the correct location.
ELK0192D
ELK0193D
ELK0194D
ELK0195D
ELK0196D
ELK0197D

AV-142
< SERVICE INFORMATION >
NAVIGATION SYSTEM
PlaceIn a parking lot When driving in a parking lot, or other loca-
tion where there are no roads on the map,
matching may place the vehicle mark on a
nearby road. When the vehicle returns to
the road, the vehicle mark may have devi-
ated from the correct location.
When driving in circle or turning the steer-
ing wheel repeatedly, direction errors accu-
mulate, and the vehicle mark may deviate
from the correct location.
If after travelling about 10 km (6
miles) the correct location has
not been restored, perform lo-
cation correction and, if neces-
sary, direction correction. Turntable
When the ignition switch is OFF, the navi-
gation system cannot get the signal from
the gyroscope (angular speed sensor).
Therefore, the displayed direction may be
wrong and the correct road may not be eas-
ily returned to after rotating the vehicle on a
turntable with the ignition OFF.
Slippery roads On snow, wet roads, gravel, or other roads
where tires may slip easily, accumulated
mileage errors may cause the vehicle mark
to deviate from the correct road.
Slopes When parking in sloped garages, when
travelling on banked roads, or in other cas-
es where the vehicle turns when tilted, an
error in the turning angle will occur, and the
vehicle mark may deviate from the road.
Map dataRoad not displayed on the map screen
When driving on new roads or other roads
not displayed on the map screen, map
matching does not function correctly and
matches the location to a nearby road.
When the vehicle returns to a road which is
on the map, the vehicle mark may deviate
from the correct road.
Different road pattern
(Changed due to repair)
If the road pattern stored in the map data
and the actual road pattern are different,
map matching does not function correctly
and matches the location to a nearby road.
The vehicle mark may deviate from the cor-
rect road.
Vehicle Use of tire chainsWhen tire chains are used, the mileage is
not correctly detected, and the vehicle mark
may deviate from the correct road.Drive the vehicle for a while. If
the distance still deviates, ad-
just it by using the distance ad-
justment function. (If the tire
chain is removed, recover the
original value.) Cause (condition) –: While driving ooo: Display Driving condition Remarks (correction, etc.)
SEL709V
SEL710V
SEL699V
ELK0201D