sat nav NISSAN PATROL 2004 Electronic Repair Manual

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 ¯ying 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
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.
COMPONENT DESCRIPTION
NAVI control unit
+The 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.
DVD-ROM drive
Maps, traffic control regulations, and other pertinent information
can be easily read from the DVD-ROM disc.
Map DVD-ROM
+The 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.
SEL526V
PKIA0248E
PKIA0249E
NAVIGATION SYSTEM
System Description (Cont'd)
EL-4164

ªNAVIGATION SETTINGSº mode
How To Perform Navigation Settings
1. Start the engine.
2. Push ªSETTINGº button.
3. Select ªNavigationº key.
+Easy Mode
+ Expert Mode
Application Items
Icon MODE
Description Reference
page
Easy Expert
View x x Map display mode can be switched. EL-4170
Heading x x Heading of the map display can be customized for either north head-
ing or the actual driving direction of the vehicle. EL-4170
Nearby Display Icons x Icons of facilities can be displayed.
Facilities to be displayed can be selected from the variety selections. EL-4170
Save Current Location x Current vehicle location can be registered in Address Book. EL-4170
Edit Address Book x Address Book can be edited. EL-4170
Clear Memory x Address Book, Previous destination or Avoid area can be deleted. EL-4171
Auto Re-route On/Off x On/Off of Auto Re-route can be switched. EL-4171
Quick Stop Customer Settings x One facility of your selection can be added to your Quick Stop. EL-4171
Set Average speed for Esti-
mated Journey Time xAverage vehicle speed can be set to calibrate estimated journey time
for the destination. EL-4171
GPS Information x The GPS data includes longitude, latitude and altitude (distance above
sea level) of the present vehicle position, and current date and time
for the area in which the vehicle is being driven.
Also indicated are the GPS reception conditions and the GPS satellite
position. EL-4171
Avoid Area Setting x A particular area can be avoided when routing. EL-4172
Tracking On/Off x Tracking to the present vehicle position can be displayed. EL-4172
Adjust Current Location x Current location of position marker can be adjusted. Direction of posi-
tion marker also can be calibrated when heading direction of the
vehicle on the display is not matched with the actual direction. EL-4172
Switch beep On/Off x Button tone can be selected On/Off. EL-4172
SKIA9543E
SKIA1385E
NAVIGATION SYSTEM
System Description (Cont'd)
EL-4169

ªCLEAR MEMORYº mode
+To delete all the stored places in ªAddress Bookº, ªAvoid Areaº
and ªPrevious Destº, select ªYesº.
ªAUTO RE-ROUTEº mode
+To Perform the auto re-route of route, select ªONº.
+ Not to Perform the auto re-route of route, select ªOFFº.
ªQUICK STOP CUSTOMER SETTINGSº mode
+Select a category for the ªQuick Stopº menu.
ªSET AVERAGE SPEEDº mode
+Set the average vehicle speed to calibrate the estimated jour-
ney time for the destination.
+ Set three items; ªMotorwayº, ªMain Roadsº, and ªOrdinary
Roadsº.
ªGPS INFORMATIONº mode
+Latitude, longitude, altitude, astrometric state, and satellite
location are displayed as GPS information.
NOTE:
Altitude is displayed only in three-dimensional status.
SKIA9146E
SKIA0558E
SKIA1389E
SKIA9544E
SKIA0555E
NAVIGATION SYSTEM
System Description (Cont'd)
EL-4171

Self-Diagnosis Function
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
Mode Description
Self-diagnosis +
NAVI Control unit diagnosis (DVD-ROM drive will not be diagnosed when no
map DVD-ROM is in it.).
+ Performs diagnosis of each unit and connections between control unit and
GPS antenna, as well as between control unit and each unit.
Con®rmation/
Adjustment Display
Color tone and shading of the screen can be checked by the display of a color
bar and a gray scale.
Vehicle signals Analyzes the following vehicle signals: Vehicle speed signal, light signal, ignition
switch signal, and reverse signal.
Navigation Display Longi-
tude & Lati-
tude
Display the map. Use the joystick to adjust position. Longitude and latitude will be
displayed.
Speed Calibra-
tion 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 sys-
tem accuracy in cases such as when distance calibration is needed because of
the use of tire chains in inclement weather.
Angle Adjust-
ment Corrects difference between actual turning angle of a vehicle and turning angle of
the car mark on the display.
Initialize Loca-
tion This mode is for initializing the current location. Use when the vehicle is trans-
ported a long distance on a trailer, etc.
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.
Self-Diagnosis Mode
OPERATION PROCEDURE
1. Start the engine.
2. Push and hold ªMAPº and ªDAY/NIGHTº switches simulta-
neously for 5 seconds or more.
+ Push the ªBACKº switch and the initial system screen will
be shown.
PKIB1537E
NAVIGATION SYSTEM
EL-4189

3. The initial trouble diagnosis screen will be shown, and itemsªSelf-Diagnosisº and ªCon®rmation/Adjustmentº will become
selective.
4. Perform self-diagnosis by selecting the ªSelf-Diagnosisº.
+ Self-diagnosis subdivision screen will be shown and the opera-
tion enters the self-diagnosis mode.
+ A bar graph shown below the self-diagnosis subdivision screen
indicates progress of the diagnosis.
5. On the ªSELF-DIAGNOSISº screen, each unit name will be colored according to the diagnosis result, as follows.Green: No malfunctioning.
Yellow: Cannot be judged by self-diagnostic results.
Red: Unit is malfunctioning.
Gray: Diagnosis has not been done.
+ If several malfunctions are present in a unit, color of its switch
on the screen will be either red, yellow, or gray, determined by
the malfunction of the highest priority.
+ Lines between navigation unit and GPS antenna are green or
yellow based on diagnosis results.
+ Lines between control unit and units other than those above are
gray regardless of diagnosis results.
CAUTION:
+ Navigation Unit = NAVI control unit
+ Communication converter = Transfer unit
+ Satellite Switch = NAVI switch
6. Select a switch on the ªSELF-DIAGNOSISº screen and com- ments for the diagnosis results will be shown.
+ When the switch is green, the following comment will be
shown. ªSelf-Diagnosis was successful. Further diagnosis
and adjustments are recommended. Follow the
ªcon®rmation/adjustmentsº menu or refer to the service
manual.º
+ When the switch is yellow, the following comment will be
shown. ªConnection to the following unit is not responding.
See the service manual for further diagnosis.º
+ When the switch is red, the following comment will be
shown. ªNavigation Unit is abnormal.º
SKIA0381E
SKIA0382E
SKIA9192E
SKIA9193E
NAVIGATION SYSTEM
Self-Diagnosis Mode (Cont'd)
EL-4190

Error itemPossible causes
Example of symptom
Action/symptom
GPS ROM
malfunction
GPS RAM
malfunction Contents of ROM (or RAM) in GPS substrate are mal-
functioning.
+
Location detection accuracy of the navigation system
will deteriorate, depending on the malfunctioning area
in the memory, because GPS cannot make correct
positioning. (Location correction using GPS is not per-
formed.)
+
Perform self-diagnosis.
+ When the NAVI control unit is judged normal by self-
diagnosis, the symptom may be intermittent, caused
by strong radio interference.
GPS RTC
malfunction Clock IC in GPS substrate is malfunctioning.
+
Correct time may not be displayed.
+ After the power is turned on, the system always takes
some time until GPS positioning becomes possible.
(The GPS receiver starts positioning without re-col-
lecting the whole satellite information when it judged
the data stored in the receiver is correct.)
+ Correct time of error occurrence may not be stored in
the ªHistory of Errorsº.
+
Perform self-diagnosis.
+ When the NAVI control unit is judged normal by self-
diagnosis, the symptom may be intermittent, caused
by strong radio interference.
GPS antenna
disconnected Malfunctioning connection between GPS substrate in
NAVI control unit and GPS antenna.
+Navigation location detection performance has dete-
riorated. (Location correction using GPS is not per-
formed.)
+ GPS receiving status remains gray.
+
Perform self-diagnosis.
+ When connection between NAVI control unit and
GPS antenna is judged normal by self-diagnosis, the
symptom may be intermittent, caused by impact or
vibration.
Low voltage of
GPS The power voltage supplied to the GPS circuit board has
decreased.
+Navigation location detection performance has dete-
riorated. (Location correction using GPS is not per-
formed.)
+ GPS receiving status remains gray.
+
Perform self-diagnosis.
+ When connection between NAVI control unit and
GPS antenna is judged normal by self-diagnosis, the
symptom may be intermittent, caused by impact or
vibration.
DVD-ROM
Malfunction
DVD-ROM
Read error
DVD-ROM
Response
Error Malfunctioning NAVI control unit Ð
Dedicated map DVD-ROM is in the system, but the data
cannot be read.
+The map of a particular location cannot be displayed.
+ Speci®c guidance information cannot be displayed.
+ Map display is slow.
+ Guidance information display is slow.
+ System has been affected by vibration.
+
Is map DVD-ROM damaged, warped, or dirty?
Ð If damaged or warped, the map DVD-ROM is mal- functioning.
Ð If dirty, wipe the DVD-ROM clean with a soft cloth.
+ Perform self-diagnosis.
+ When NAVI control unit is judged normal by self-
diagnosis, the symptom is judged intermittent, caused
by vibration.
NAVIGATION SYSTEM
Con®rmation/Adjustment Mode (Cont'd)
EL-4197

2. CHECK RGB SYNCHRONIZING SIGNAL
1. Connect NAVI control unit connector and display connector.
2. Turn ignition switch ON.
3. Push the ªMAPº switch.
4. Check the signal between NAVI control unit harness connector M167 terminals 16 (W) and 17 with CONSULT-ll oroscilloscope.
PKIB0557E
16 (W) - 19: Refer to EL-4183. OK or NG
OK ©Replace display.
NG ©Replace NAVI control unit.
GUIDE SOUND IS NOT HEARD
1. CHECK VOICE GUIDE SETTING
+While driving in the dark pink route, voice guide does 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 direction.
+ Is volume setting not switched ON?
YesorNo
Ye s ©GO TO 2.
No ©Switch the setting ON and turn the volume up.
NAVIGATION SYSTEM
Trouble Diagnoses (Cont'd)
EL-4213

Example of Symptoms Judged Not Malfunction
BASIC OPERATION
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 malfunction.
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. System is not malfunction.
VEHICLE MARK
Symptom Cause Remedy
Map screen and BIRDVIEW TName
of the place vary 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 dis-
played every time on account of the data pro-
cessing.
System is not malfunction.
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
ªSWITCH SCREENSº when the last time the
screen dimming setting is done.
Switching between daytime/nighttime screen
may be inhibited by the automatic illumination
adjustment function.
Perform screen dimming and select the night-
time screen by ªSWITCH SCREENSº.
Map screen will not scroll in accor-
dance with the vehicle travel. Current location is not displayed. Push ªMAPº switch to display the current
location.
Vehicle mark will not be shown. Current location is not displayed. Push ªMAPº switch 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
display. Do not place anything in the center on top of
the display.
GPS satellites are located badly. Wait until the location becomes better.
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 ®tted or the system has
been used on another vehicle. 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 ªCONFIRMATION/
ADJUSTMENTº mode of diagnosis function.
Map data has error or omission. (Vehicle
mark is always deviated to the same posi-
tion.) As a rule, an updated map DVD-ROM will be
released once a year.
NAVIGATION SYSTEM
EL-4218

DESTINATION, PASSING POINTS, AND MENU ITEMS CANNOT BE SELECTED/SET
Symptom Cause Remedy
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 search-
ing.
Vehicle mark is not on the recommended
route. Drive on the recommended route.
Route guide is turned OFF. Turn the route guide ON.
Route information is not available on the dark
pink route. System is not malfunction.
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, however, the
whole route will be searched.
Performed automatic detour search
(or detour search). However, the
result is the same as that of the pre-
vious search. Performed search with every conditions con-
sidered. However, the result is the same as
that of the previous search.
System is not malfunction.
Passing points cannot be set. More than ®ve passing points were set. Passing points can be set up to ®ve. To stop
at more than ®ve 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 malfunction.
Some menu items cannot be
selected. The vehicle is being driven. Stop the vehicle at a safe place and then
operate the system.
VOICE GUIDE
Symptom Cause Remedy
Voice guide will not operate. Note: Voice guide is only available at inter-
sections that satisfy certain conditions (indi-
cated by
+on the map). Therefore, guidance
may not be given even when the route on the
map changes direction. System is not malfunction.
The vehicle is not on the recommended
route. Return to the recommended route or
re-search the route.
Voice guide is turned OFF. Turn the voice guide ON.
Route guide is turned OFF. Turn the route guide ON.
Voice guide does not match the
actual road pattern. Voice guide may vary with the direction to
which the vehicle is turn and the connection
of the road to other roads.
Drive in conformity to the actual traffic rules.
NAVIGATION SYSTEM
Example of Symptoms Judged Not Malfunction
(Cont'd)
EL-4219

Cause (condition) Driving condition Remarks (correction, etc.)
Precautions
for driving Just after the engine is started
If the vehicle is driven off just after
the engine is started when the gyro-
scope (angular speed sensor) cor-
rection is not completed, the vehicle
can lose its direction and may have
deviated from the correct location.Wait for a short while before driving
after starting the engine.
Continuous driving without stopping When driving long distances without
stopping, 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 to
perform correct detection, and may
cause the vehicle mark to deviate
from the correct road.If after travelling about 10 km (6
miles) the correct location has not
been restored, perform location cor-
rection and, if necessary, direction
correction.
How to correct
location Position correction accuracy
SEL699V
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. 1
mm.
NOTE:
Whenever possible, use detailed
map for the correction.
Direction when location is corrected
SEL702V
If the accuracy of location settings
during correction is poor, accuracy
may be reduced afterwards. Perform direction correction.
THE CURRENT POSITION 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
direction correction.
+
When location correction has not been done
Ð 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
Ð Because calculation of the current location cannot be done when travelling with the ignition OFF, for example when travelling by ferry or when being towed, the location before travel is displayed. If the pre-
cise location can be detected with GPS, the location will be corrected.
THE CURRENT POSITION 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
Ð 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 ªcorrectedº to the wrong road or to a
location which is not on a road.
+ When GPS location correction has been done
Ð 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 ªcorrectedº
to a location which is not on a road.
NAVIGATION SYSTEM
Example of Symptoms Judged Not Malfunction
(Cont'd)
EL-4224