2005 INFINITI FX35 wheel

AV-74
INTEGRATED DISPLAY SYSTEM
Revision: 2005 July 2005 FX
On Board Self-Diagnosis FunctionAKS005U8
DESCRIPTION

Diagnosis function consists of the self-diagnosis mode performed automatically.

Self-diagnosis mode checks for connections between the units constituting this system, analyzes each
individual unit at the same time, and displays the results on the LCD screen.
DIAGNOSIS ITEM
Self-Diagnosis ModeAKS005U9
OPERATION PROCEDURES
1. Start the engine.
2. Turn the audio system off.
3. While pressing the “MUTE/ II ” switch, turn the volume control
dial clockwise or counterclockwise for 30 clicks or more. (When
the self-diagnosis mode is started, a short beep will be heard.)
4. Display unit connection check screen.
5. Select each connecting unit (CHANGER, SATELLITE RADIO).
13 (G/W) Ground Steering SW
B Input ON Press POWER
switch. Approx. 0 V
Audio steering
wheel switches
do not function.
Press SEEK
DOWN switch. Approx. 1.7 V
Press VOL DOWN
switch. Approx. 3.3 V
Except for above Approx. 5 V
14 (B/Y) — Steering SW
ground —— — — Audio steering
wheel switches
do not function.
Terminal No.
(Wire color) Item Signal
input/
output Condition
Voltage Example of
symptom
+– Ignition
switch Operation
Mode Item Description Reference page
Self-diagnosis NETWORK CHECK
Check network between control unit and switch connected
from display unit via communication line. AV-75, "
NETWORK CHECK"
PARTS CHECK
Perform diagnosis and setting of display unit.

Perform self-diagnosis for auto air conditioner system. AV- 7 5 , "PARTS CHECK"
VERSION CHECK Displays version of each unit.
AV- 7 6 , "VERSION CHECK"
CAN DIAG MNTR Display unit displays CAN communication status. AV- 7 6 , "CAN DIAG MNTR
(CAN DIAG MONITOR)"
PKIB4131E
SKIA5921E

AV-78
INTEGRATED DISPLAY SYSTEM
Revision: 2005 July 2005 FX
Trouble Diagnosis Chart by SymptomAKS005UB
Symptom Suspect Systems and reference
No screen is shown. Refer to
AV-79, "
Power Supply and Ground Circuit Check for Display Unit" .
If above is normal, replace display unit.
Screen does not switch to nighttime mode after the
lighting switch is turned 1st. Refer to
AV-81, "
Illumination Signal Inspection" .
TRIP and FUEL ECON screen do not appear. Refer to AV-82, "
Ignition Signal Inspection" .
Journey distance (DIST) is not added up. Refer to AV-80, "
Vehicle Speed Signal Inspection" .
Average vehicle speed (AVG) is not displayed.
Average fuel consumption (AVG) is not displayed.

Refer to AV-80, "Vehicle Speed Signal Inspection" .

Refer to AV-85, "CAN Communication Line Inspection" .
If above is normal, replace display unit.
Distance to empty (DTE) is not displayed.

Check if speedometer operates. If it does not operate, go to AV- 8 0 , "Vehicle
Speed Signal Inspection" .

Check if fuel gauge operates. If it does not operate, go to DI-22, "Fuel Level
Sensor Signal Inspection" .

Refer to AV-85, "CAN Communication Line Inspection" .
If above is normal, replace display unit.
Tire pressure is not displayed.

Check BCM (Body Control Module). Refer to BCS-3, "BCM (BODY CONTROL
MODULE)" .

Refer to AV-85, "CAN Communication Line Inspection" .
If above is normal, replace display unit.
Door warning screen does not appear.

Refer to AV-80, "Vehicle Speed Signal Inspection" .

Refer to AV-85, "CAN Communication Line Inspection" .
If above is normal, replace display unit.
A/C and AV switch and all switch operation are not
possible.
(Do not start self-diagnosis.)

Refer to AV-80, "Power Supply and Ground Circuit Check for A/C and AV
Switch" .

Refer to AV-77, "A/C and AV Switch Self-Diagnosis Function" .

Refer to AV-84, "AV Communication Line Inspection" .
If above is normal, replace display unit.
Audio operation is not possible.

Refer to AV-77, "A/C and AV Switch Self-Diagnosis Function" .

Refer to AV-82, "Audio Communication Line Inspection" .
Audio steering wheel switches do not function. Refer to
AV-86, "
Audio Steering Wheel Switch Inspection" .
If above is normal, replace AV and A/C switch.
Air conditioner operation is not possible.

Refer to AV-77, "A/C and AV Switch Self-Diagnosis Function" .

Refer to AV-85, "CAN Communication Line Inspection" .

AV-86
INTEGRATED DISPLAY SYSTEM
Revision: 2005 July 2005 FX
Audio Steering Wheel Switch InspectionAKS005UK
Refer to AV- 4 2 , "Audio Steering Wheel Switch Inspection" .
Removal and Installation of DisplayAKS005UL
REMOVAL
1. Remove audio unit. Refer to AV- 4 7 , "Removal and Installation of
Audio Unit" .
2. Remove screws (4), and remove display.
INSTALLATION
Installation is the reverse order of removal.
Removal and Installation of A/C and AV SwitchAKS005UM
Refer to AV- 4 8 , "Removal and Installation for A/C and AV Switch" .
SKIA6167E

AV-88
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX

In map-matching, alternative routes to reach the destination will
be shown and prioritized, after the road on which the vehicle is
currently driven has been judged and the current-location mark
has been repositioned.
If there is an error in distance and/or direction, the alternative
routes will be shown in different order of priority, and the wrong
road can be avoided.
If two roads are running in parallel, they are of the same priority.
Therefore, the current-location mark may appear on either of
them alternately, depending on maneuvering of the steering
wheel and configuration of the road.

Map-matching does not function correctly when the road on
which the vehicle is driving is new and not recorded in the map
DVD-ROM, or when the road pattern stored in the map data and
the actual road pattern are different due to repair.
When driving on a road not present in the map, the map-match-
ing function may find another road and position the current-loca-
tion mark on it. Then, when the correct road is detected, the
current-location mark may leap to it.

Effective range for comparing the vehicle position and travel
direction calculated by the distance and direction with the road
data read from the map DVD-ROM is limited. Therefore, when
there is an excessive gap between the current vehicle position
and the position on the map, correction by map-matching is not possible.
GPS (GLOBAL POSITIONING SYSTEM)
GPS (Global Positioning System) has been developed and con-
trolled by the US Department of Defense. The system utilizes GPS
satellite (NAVSTAR), sending out radio waves while flying on an orbit
around the earth at the height of approx. 21,000 km (13,000 miles).
The GPS receiver calculates the vehicle's position in three dimen-
sions (latitude/longitude/altitude) according to the time lag of the
radio waves received from four or more GPS satellites (three-dimen-
sional positioning). If radio waves were received only from three
GPS satellites, the GPS receiver calculates the vehicle's position in
two dimensions (latitude/longitude), utilizing the altitude data calcu-
lated previously by using radio waves from four or more GPS satel-
lites (two–dimensional positioning).
Accuracy of the GPS will deteriorate under the following conditions.

In two–dimensional positioning, the GPS accuracy will deteriorate when the altitude of the vehicle position
changes.

There may be an error of approximately 10 m (30 ft) in position detected by three-dimensional positioning,
which is more accurate than two–dimensional positioning. The accuracy can be even lower depending on
the arrangement of the GPS satellites utilized for the positioning.

Position detection is not possible when the vehicle is in an area where radio waves from the GPS satellite
do not reach, such as in a tunnel, parking lot in a building, and under an elevated highway. Radio waves
from the GPS satellites may not be received when some object is located over the GPS antenna.

Position correction by GPS is not available while the vehicle is stopped.
SEL686V
SKIA0613E
SEL526V

AV-128
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
On Board Self-Diagnosis FunctionAKS007IZ
DESCRIPTION

Diagnosis function consists of the self-diagnosis mode performed automatically and the CONFIRMATION/
ADJUSTMENT mode operated manually.

Self-diagnosis mode checks for connections between the units constituting this system, analyzes each
individual unit at the same time, and displays the results on the LCD screen.

CONFIRMATION/ADJUSTMENT mode is used to perform trouble diagnosis that require operation and
judgment by an operator (malfunction that cannot be automatically judged by the system), to check/
change the set value, and to display the History of Errors of the navigation system.
DIAGNOSIS ITEM
NOTE:
Make the status that is set by D/N function be shown. Mode Description
Self-diagnosis (DCU) Display control unit diagnosis
Self-diagnosis (NAVI)

NAVI Control unit diagnosis (DVD-ROM drive will not be diagnosed
when no map DVD-ROM is in it.)

Analyzes connection between the NAVI control unit and the GPS
antenna connection between the NAVI control unit and each unit, and
operation of each unit.
Confirmation/
Adjustment Display diagnosis
On display control unit mode, color tone and shading of the screen can be
checked by the display of a color bar and a gray scale.
Vehicle signals On display control unit mode, analyzes the following vehicle signals: Vehi-
cle speed signal, light signal
NOTE , ignition switch signal, and reverse sig-
nal.
Auto Climate Control A/C self-diagnosis of A/C system.
Navigation Display diagnosis
On NAVI C/U mode, color tone and shading of the screen can be checked
by the display of a color bar and a gray scale.
Vehicle signals On NAVI C/U mode, analyzes the following vehicle signals: Vehicle speed
signal, light signal, ignition switch signal, and reverse signal.
History of Errors Diagnosis results previously stored in the memory (before turning ignition
switch ON) are displayed in this mode. Time and location when/where the
errors occurred are also displayed.
Navigation Display Longi-
tude & Latitude Display the map. Use the joystick to adjust position. Longitude and latitude
will be displayed.
Speed
Calibration Under ordinary conditions, the navigation system distance measuring
function will automatically compensate for minute decreases in wheel and
tire diameter caused by tire wear or low -pressure. Speed calibration
immediately restores system accuracy in cases such as when distance
calibration is needed because of the use of tire chains in inclement
weather.
Angle
adjustment Corrects difference between actual turning angle of a vehicle and turning
angle of the car mark on the display.
Initialize
Location This mode is for initializing the current location. Use when the vehicle is
transported a long distance on a trailer, etc.
CAN DIAG SUPPOPT MONITOR Display status of CAN communication.

AV-176
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
Place In 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 traveling about 10km
(6miles) the correct location
has not been restored, perform
location correction and, if nec-
essary, direction correction.
Turn ta ble
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
easily returned to after rotating the vehicle
on a turn table 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 traveling on banked roads, or in other
cases where the vehicle turns when tilted,
an error in the turning angle will occur, and
the vehicle mark may deviate from the
road.
Map data Road 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
correct road.
Vehicle Use of tire chains When 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 is still deviated,
adjust it by using the distance
adjustment 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

NAVIGATION SYSTEM AV-177
C
D E
F
G H
I
J
L
M A
B
AV
Revision: 2005 July 2005 FX
CURRENT LOCATION MARK SHOWS A POSITION WHICH IS COMPLETELY WRONG
In the following cases, the current-location mark may appear on completely different position in the map
depending on the GPS satellite signal receiving conditions. In this case, perform location correction and direc-
tion correction.

When location correction has not been done
–If the receiving conditions of the GPS satellite signal is poor, if the current-location mark becomes out of
place, it may move to a completely different location and not come back if location correction is not done.
The position will be corrected if the GPS signal can be received.

When the vehicle has traveled by ferry, or when the vehicle has been being towed
–Because calculation of the current location cannot be done when traveling with the ignition OFF, for exam-
ple when traveling by ferry or when being towed, the location before travel is displayed. If the precise loca-
tion can be detected with GPS, the location will be corrected.
CURRENT-LOCATION MARK JUMPS
In the following cases, the current-location mark may appear to jump as a result of automatic correction of the
current location.

When map matching has been done
–If the current location and the current-location mark are different when map matching is done, the current-
location mark may seem to jump. At this time, the location may be “corrected” to the wrong road or to a
location which is not on a road.

When GPS location correction has been done
–If the current location and the current-location mark are different when the location is corrected using GPS
measurements, the current-location mark may seem to jump. At this time, the location may be “corrected”
to a location which is not on a road.
Precautions
for driving Just after the engine is started
If the vehicle is driven off just after the
engine is started when the gyroscope
(angular speed sensor) correction is not
completed, the vehicle can lose its direc-
tion and may have deviated from the cor-
rect location. Wait for a short while before
driving after starting the engine.
Continuous driving without stopping When driving long distances without stop- ping, direction errors may accumulate, and
the current-location mark may deviate from
the correct road. Stop and adjust the orientation.
Abusive driving Spinning the wheels or engaging in other kinds of abusive driving may result in the
system being unable perform correct
detection, and may cause the vehicle mark
to deviate from the correct road. If after traveling about 10 km (6
miles) the correct location has
not been restored, perform
location correction and, if nec-
essary, direction correction.
How to cor-
rect location Position correction accuracy
If the accuracy of location settings is poor,
accuracy may be reduced when the correct
road cannot be found, particularly in places
where there are many roads. Enter in the road displayed on
the screen with an accuracy of
approx. 1mm.
Caution: Whenever possible,
use detailed map for the cor-
rection.
Direction when location is corrected
If the accuracy of location settings during
correction is poor, accuracy may be
reduced afterwards. Perform direction correction.
Cause (condition) –: While driving ooo: Display Driving condition Remarks (correction, etc.)
SEL701V
SEL702V

AV-178
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
CURRENT LOCATION MARK IS IN A RIVER OR SEA
The navigation system moves the current-location mark with no distinction between land and rivers or sea. If
the location mark is somehow out of place, it may appear that the vehicle is driving in a river or the sea.
WHEN DRIVING ON SAME ROAD, SOMETIMES CURRENT-LOCATION MARK IS IN RIGHT
PLACE AND SOMETIMES IT IS WRONG PLACE
The conditions of the GPS antenna (GPS data) and gyroscope (angular speed sensor) change gradually.
Depending on the road traveled and the operation of the steering wheel, the location detection results will be
different. Therefore, even on a road on which the location has never been wrong, conditions may cause the
vehicle mark to deviate.
LOCATION CORRECTION BY MAP-MATCHING IS SLOW

The map matching function needs to refer to the data of the surrounding area. It is necessary to drive
some distance for the function to work.

Because map matching operates on this principle, when there are many roads running in similar direc-
tions in the surrounding area, no matching determination may be made. The location may not be cor-
rected until some special feature is found.
ALTHOUGH GPS RECEIVING DISPLAY IS GREEN, VEHICLE MARK DOES NOT RETURN TO
CORRECT LOCATION

The GPS accuracy has an error of approximately 10 m (30 ft). In some cases the current-location mark
may not be on the correct street, even when GPS location-correction is done.

The navigation system compares the results of GPS location detection with the results from map-match-
ing location detection. The one which is determined to have higher accuracy is used.

GPS location correction may not be performed when the vehicle is stopped.
NAME OF CURRENT PLACE IS NOT DISPLAYED
The current place name may not be displayed if there are no place names displayed on the map screen.
CONTENTS OF DISPLAY DIFFER FOR BIRDVIEW™ AND THE (FLAT) MAP SCREEN
Difference of the BIRDVIEW™ screen from the Flat Map Screen are as Follows.

The current place name displays names which are primarily in the direction of vehicle travel.

The amount of time before the vehicle travel or turn angle is updated on the screen is longer than for the
(flat) map display.

The conditions for display of place names, roads, and other data are different for nearby areas and for
more distant areas.

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 be displayed multiple times.