2003 NISSAN ALMERA N16 navigation

registering another NATS ignition key ID no., it may be necessary to re-register original key iden-
tification. Therefore, be sure to receive ALL KEYS from vehicle owner.
System CompositionNJEL0408The immobilizer function of the NATS consists of the following:
NATS ignition key
NATS immobilizer control unit (IMMU) located in the ignition key cylinder
Engine control module (ECM)
Dongle unit (RHD models)
Security indicator
Navigation control unit (Models with Navigation system)
NEL776
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NATS (NISSAN ANTI-THEFT SYSTEM)
System Description (Cont’d)
EL-387

SKIA0370E
System DescriptionNJEL0592The navigation system periodically calculates the vehicle’s current
position according to the following three signals: Travel distance of
the vehicle as determined by the vehicle speed sensor, turning
angle of the vehicle as determined by the gyroscope (angular
velocity sensor), and the direction of vehicle travel as determined
by the GPS antenna (GPS information).
The current position of the vehicle is then identified by comparing
the calculated vehicle position with map data read from the map
DVD-ROM, which is stored in the DVD-ROM drive (map-matching),
and indicated on the screen with a current-location mark.
SEL684V
By comparing the vehicle position detection results found by the
GPS and by map-matching, more accurate vehicle position data
canbeused.
The current vehicle position will be calculated by detecting the dis-
tance the vehicle moved from the previous calculation point and its
direction.
TRAVEL DISTANCENJEL0592S01Travel distance calculations are based on the vehicle speed sen-
sor input signal. Therefore, the calculation may become incorrect
as the tires wear down. To prevent this, an automatic distance fine
adjustment function has been adopted.
TRAVEL DIRECTIONNJEL0592S02Change in the travel direction of the vehicle is calculated by a
gyroscope (angular velocity sensor) and a GPS antenna (GPS
information). As the gyroscope and GPS antenna have both merit
and demerit, input signals from them are prioritized in each situa-
tion. However, this order of priority may change in accordance with
more detailed travel conditions so that the travel direction is
detected more accurately.
Type Advantage Disadvantage
Gyroscope (angular velocity sen-
sor)Can detect the vehicle’s turning angle
quite accurately.Direction errors may accumulate when the
vehicle is driven for long distances without
stopping.
GPS antenna (GPS information)Can detect the vehicle’s travel direction
(North/South/East/West).Correct direction cannot be detected when
the vehicle speed is low.
SEL685V
MAP-MATCHINGNJEL0592S03Map-matching is a function that repositions the vehicle on the road
map when a new location is judged to be the most accurate. This
is done by comparing the current vehicle position, calculated by the
method described in the position detection principle, with the road
map data around the vehicle, read from the map DVD-ROM stored
in the DVD-ROM drive.
Therefore, the vehicle position may not be corrected after the
vehicle is driven over a certain distance or time in which GPS
information is hard to receive. In this case, the current-location
mark on the display must be corrected manually.
NAVIGATION SYSTEM
System Description
EL-430

NOTE:
The road map data is based on data stored in the map DVD-ROM.
SEL686V
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-lo-
cation 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 pri-
ority. Therefore, the current-location mark may appear on
either of them alternately, depending on maneuvering of the
steering wheel and configuration of the road.
SKIA0613E
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-
matching function may find another road and position the cur-
rent-location 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.
SEL526V
GPS (GLOBAL POSITIONING SYSTEM)NJEL0592S04GPS (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-di-
mensional 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
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NAVIGATION SYSTEM
System Description (Cont’d)
EL-431

data calculated previously by using radio waves from four or more
GPS satellites (two-dimensional positioning).
Accuracy of the GPS will deteriorate under the following conditions.
In two-dimensional positioning, the GPS accuracy will deterio-
rate when the altitude of the vehicle position changes.
There may be an error of approximately 10 m (30 ft.) in posi-
tion 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 sat-
ellites 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.
PKIA0248E
COMPONENT DESCRIPTIONNJEL0592S05AV and NAVI Control UnitNJEL0592S0501The gyro (angular speed sensor) and the DVD-ROM drive are
built-in units that control the navigation functions.
Signals are received from the gyro, the vehicle speed sensor,
and the GPS antenna. Vehicle location is determined by com-
bining this data with the data contained in the DVD-ROM map.
Locational information is shown on liquid crystal display panel.
PKIA0249E
DVD-ROM DriveNJEL0592S0502Maps, traffic control regulations, and other pertinent information
can be easily read from the DVD-ROM disc.
Map DVD-ROMNJEL0592S0503The map DVD-ROM has maps, traffic control regulations, and
other pertinent information.
To improve DVD-ROM map matching and route determination
functions, the DVD-ROM uses an exclusive Nissan format.
Therefore, the use of a DVD-ROM provided by other manufac-
turers cannot be used.
Gyro (Angular Speed Sensor)NJEL0592S0504The oscillator gyro sensor is used to detect changes in vehicle
steering angle.
The gyro is built into the navigation (AV and NAVI) control unit.
NAVIGATION SYSTEM
System Description (Cont’d)
EL-432

BIRDVIEW=NJEL0592S06The BIRDVIEW provides a detailed and easily seen display of
road conditions covering the vehicle’s immediate to distant area.
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MAP DISPLAY
SKIA1378E
BIRDVIEW
SEL691V
DescriptionNJEL0592S0601Display area: Trapezoidal representation showing approximate
distances (Wn, D, and Wd).
Ten horizontal grid lines indicate display width while six verti-
cal grid lines indicate display depth and direction.
Drawing line area shows open space, depth, and immediate
front area. Each area is to a scale of approximately 5:6:25.
Pushing the “ZOOM IN” button during operation displays the
scale change and the view point height on the left side of the
screen.
The height of the view point increases or decreases when
“ZOOM” or “WIDE” is selected with the joystick.
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NAVIGATION SYSTEM
System Description (Cont’d)
EL-433

SKIA1379E
MAP DISPLAYNJEL0592S07Function of each icon is as follows:
1. Azimuth indication.
2. Position marker.
− The tip of the arrow shows the current position. The shaft of
the arrow indicates the direction in which the vehicle is travel-
ing.
3. GPS reception signal (indicates current reception conditions).
4. Distance display (shows the distance in a reduced scale).
SKIA1623E
FUNCTION OF MULTIFUNCTION SWITCHNJEL0592S08Display With Pushed “DEST” SwitchNJEL0592S0801Easy Mode
SKIA1381E
Expert Mode
The Function of Each Icon Is as Follows:
IconMODE
Description
Easy Expert
Address Book×Favorite place can be saved to memory.
Address/Street××The destination can be searched from the address.
Point of Interest
(POI)××The destination of favorite facility can be searched.
Previous Dest.×The previous ten destinations stored in memory are displayed.
Intersection×The destination can be searched from the intersection.
City Center×The destination can be searched from city name.
Map×The destination can be searched from the map.
Home×Sets the home as a destination.
Help×Explanation of Navigational functions appear on the Display.
NAVIGATION SYSTEM
System Description (Cont’d)
EL-434

SKIA1382E
Display With Pushed “ROUTE” SwitchNJEL0592S0802Easy Mode
SKIA1383E
Expert Mode
The Function of Each Icon Is as Follows:
IconMODE
Description
Easy Expert
Quick Stop××The selected facility is set as the destination or waypoint.
(Route guidance has been turned OFF or the destination has been reached)
Where am I?××Next, current and previous street names can be displayed.
Route Info.*×The following items can be set.
Complete Route
Turn List
Route Simulation
(Displayed only when the destination area has been set.)
Edit Route*×Change the destination or add the transit points of the route set in the route guide.
(Displayed only when the automatic reroute function has been turned OFF andthe
recommended route is not followed.)
Route Calculation×This key is used to start the route calculation after all the settings are completed.
Help×Explanation of Navigational functions appear on the Display.
*: When destinations have been entered, route guidance has been turned OFFor destination has been reached, “Route Info.” and “Edit
Route” are not displayed.
SKIA1384E
Display With Pushed “SETTING” SwitchNJEL0592S0803
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NAVIGATION SYSTEM
System Description (Cont’d)
EL-435

The Function of Each Icon Is as Follows:
Icon Description
AudioSound quality can be adjusted, and also ON/OFF setting of switch beep soundcan be performed.
Noise Compensation ON/OFF setting can be performed.
Display Settings of display can be performed.
LanguageLanguage can be selected for the display and voice guidance.
Use the program CD-ROM disc to change the language.
Navigation Settings and adjusting of navigation can be performed.
Navigation Expert Mode Easy Mode and Expert Mode can be switched.
Guidance Volume The volume and/or on/off of voice prompt can be controlledby the joystick.
Help Explanation of Navigational Functions Appear on the Display.
SKIA1399E
“LANGUAGE” modeNJEL0592S0804Select one of the languages which appear on the screen.
NOTE:
Languages that do not appear on the screen must be loaded from
program disk.
SKIA1385E
Navigation SettingsNJEL0592S0805How To Perform Navigation Settings
1. Start the engine.
2. Push “SETTING” switch.
3. Select “NAVIGATION”.
Application Items
Icon DescriptionReference
page
View Map display mode can be switched. EL-437
HeadingHeading of the map display can be customized for either north heading or
the actual driving direction of the vehicle.EL-437
Nearby Display IconsIcons of facilities can be displayed.
Facilities to be displayed can be selected from the variety selections.EL-437
Save Current Location Current vehicle location can be registered in Address Book. EL-438
NAVIGATION SYSTEM
System Description (Cont’d)
EL-436