change time NISSAN PATROL 2004 Electronic Repair Manual

FOREWORD
This manual contains maintenance and repair procedures for NISSAN
PATROL,modelY61 series.
In order to assure your safety and the efficient functioning of the vehicle,
this manual should be read thoroughly. It is especially important that the
PRECAUTIONS in the GI section be completely understood before starting
any repair task.
All information in this manual is based on the latest product information
at the time of publication. The right is reserved to make changes in speci-
®cations and methods at any time without notice.
IMPORTANT SAFETY NOTICE
The proper performance of service is essential for both the safety of the
technician and the efficient functioning of the vehicle.
The service methods in this Service Manual are described in such a man-
ner that the service may be performed safely and accurately.
Service varies with the procedures used, the skills of the technician and the
tools and parts available. Accordingly, anyone using service procedures,
tools or parts which are not speci®cally recommended by NISSAN must
®rst completely satisfy himself that neither his safety nor the vehicle's
safety will be jeopardized by the service method selected.
NISSAN EUROPE S.A.S.
Service Engineering SectionParis, France

ELECTRICALSYSTEM
SECTION
EL
When you read wiring diagrams:
+ Read GI section, ªHOW TO READ WIRING DIAGRAMSº.
When you perform trouble diagnoses, read GI section, ªHOW TO FOLLOW FLOW
CHART IN TROUBLE DIAGNOSESº and ªHOW TO PERFORM EFFICIENT DIAGNOSIS
FOR AN ELECTRICAL INCIDENTº.
+ Check for any service bulletins before servicing the vehicle.
MODIFICATION NOTICE:
+ Wiring Diagrams have been changed.
CONTENTS
POWER SUPPLY ROUTING/WAGON AND
HARDTOP MODELS .................................................4005
Schematic ..............................................................4005
Wiring Diagram Ð POWER Ð..............................4006
GROUND DISTRIBUTION/WAGON AND
HARDTOP MODELS .................................................4016
Main Harness/LHD Models....................................4016
Main Harness/RHD Models ...................................4019
Engine Room Harness/LHD Models .....................4022
Engine Room Harness/RHD Models .....................4024
Body Harness/LHD Models ...................................4026
Body Harness/RHD Models...................................4028
Body No. 2 Harness/LHD Models .........................4030
Body No. 2 Harness/RHD Models.........................4031
Back Door and Rear Window Defogger Harness/
LHD Models ...........................................................4032
Back Door and Rear Window Defogger Harness/
RHD Models ..........................................................4033
COMBINATION SWITCH ...........................................4034
Check .....................................................................4034
STEERING SWITCH ..................................................4036
Check/RHD Models for Europe and LHD Models.4036
Check/RHD Models Except for Europe .................4038
HEADLAMP/WAGON AND HARDTOP MODELS
Ð Conventional Type Ð ..........................................4040
Wiring Diagram Ð H/LAMP Ð ..............................4040
HEADLAMP/WAGON AND HARDTOP MODELS
Ð Xenon Type Ð ......................................................4041
Bulb Replacement .................................................4041
Wiring Diagram Ð H/LAMP Ð ..............................4042 HEADLAMP/WAGON AND HARDTOP MODELS
Ð Headlamp Aiming Control Ð
.............................4044
Wiring Diagram Ð H/AIM Ð/Except for the
Middle East ............................................................4044
HEADLAMP/WAGON AND HARDTOP MODELS
Ð Daytime Light System Ð ....................................4047
Wiring Diagram Ð DTRL Ð ..................................4047
PARKING, LICENSE AND TAIL LAMPS/WAGON
AND HARDTOP MODELS ........................................4049
Wiring Diagram Ð TAIL/L Ð/Type A .....................4049
Wiring Diagram Ð TAIL/L Ð/Type B.....................4051
Wiring Diagram Ð TAIL/L Ð/Type C ....................4053
BACK-UP LAMP/WAGON AND HARDTOP
MODELS ....................................................................4055
Wiring Diagram Ð BACK/L Ð/LHD Models
Except TB48 Engine with A/T................................4055
Wiring Diagram Ð BACK/L Ð/LHD Models for
TB48 Engine with A/T ............................................4056
Wiring Diagram Ð BACK/L Ð/RHD Models
Except TB48 Engine with A/T................................4057
Wiring Diagram Ð BACK/L Ð/RHD Models
for TB48 Engine with A/T ......................................4058
STOP LAMP/WAGON AND HARDTOP MODELS ...4059
Wiring Diagram Ð STOP/L Ð/Type A ..................4059
Wiring Diagram Ð STOP/L Ð/Type B ..................4060
FRONT FOG LAMP/WAGON AND HARDTOP
MODELS ....................................................................4061
Wiring Diagram Ð F/FOG Ð/Except for Europe
and China ..............................................................4061
EL-4001

Wiring Diagram Ð F/FOG Ð/RHD Models for
Europe and China..................................................4062
Wiring Diagram Ð F/FOG Ð/LHD Models for
Europe ...................................................................4063
REAR FOG LAMP/WAGON AND HARDTOP
MODELS ....................................................................4064
Wiring Diagram Ð R/FOG Ð/For Europe and
China......................................................................4064
TURN SIGNAL AND HAZARD WARNING LAMPS/
WAGON AND HARDTOP MODELS .........................4067
Schematic ..............................................................4067
Wiring Diagram Ð TURN Ð/Type A .....................4068
Wiring Diagram Ð TURN Ð/Type B .....................4073
Wiring Diagram Ð TURN Ð/Type C.....................4075
Wiring Diagram Ð TURN Ð/Type D.....................4077
ILLUMINATION/WAGON AND HARDTOP
MODELS ....................................................................4079
Schematic ..............................................................4079
Wiring Diagram Ð ILL Ð ......................................4080
INTERIOR ROOM LAMP/WAGON AND HARDTOP
MODELS Ð With Timer Ð .......................................4088
Schematic/LHD Models Except for China .............4088
Wiring Diagram Ð ROOM/L Ð/LHD Models
Except for China ....................................................4089
Wiring Diagram Ð ROOM/L Ð/RHD Models for
Europe ...................................................................4092
INTERIOR ROOM LAMP/WAGON AND HARDTOP
MODELS Ð Without Timer Ð .................................4094
Wiring Diagram Ð ROOM/L Ð/RHD Models........4094
METER AND GAUGES/WAGON AND HARDTOP
MODELS ....................................................................4095
Combination Meter ................................................4095
Schematic ..............................................................4096
Wiring Diagram Ð METER Ð...............................4097
COMPASS AND THERMOMETER/WAGON AND
HARDTOP MODELS .................................................4099
Wiring Diagram Ð COMPAS Ð ............................4099
WARNING LAMPS/WAGON AND HARDTOP
MODELS ....................................................................4100
Schematic ..............................................................4100
Wiring Diagram Ð WARN Ð ................................4102
WARNING CHIME/WAGON AND HARDTOP
MODELS .................................................................... 4113
Wiring Diagram Ð CHIME Ð/Except for Europe
and with Theft Warning System Models................ 4113
Wiring Diagram Ð CHIME Ð/LHD Models for
Europe ................................................................... 4114
Wiring Diagram Ð CHIME Ð/RHD Models for
Europe ................................................................... 4115
Wiring Diagram Ð CHIME Ð/With Theft Warning
System Models ...................................................... 4116 FRONT WIPER AND WASHER/WAGON AND
HARDTOP MODELS
................................................. 4117
Wiring Diagram Ð WIPER Ð ............................... 4117
REAR WIPER AND WASHER/WAGON AND
HARDTOP MODELS ................................................. 4118
Wiring Diagram Ð WIP/R Ð ................................. 4118
HEADLAMP WASHER/WAGON AND HARDTOP
MODELS ....................................................................4122
Wiring Diagram Ð HLC Ð ....................................4122
HORN/WAGON AND HARDTOP MODELS ..............4124
Wiring Diagram Ð HORN Ð.................................4124
WIPER DEICER/WAGON AND HARDTOP
MODELS ....................................................................4125
Wiring Diagram Ð DEICER Ð..............................4125
REAR WINDOW DEFOGGER/WAGON AND
HARDTOP MODELS .................................................4126
Wiring Diagram Ð DEF Ð/LHD Models Without
Theft Warning System ...........................................4126
Wiring Diagram Ð DEF Ð/RHD Models Except
for Europe and With Theft Warning System .........4128
Wiring Diagram Ð DEF Ð/LHD Models With
Theft Warning System ...........................................4130
Wiring Diagram Ð DEF Ð/RHD Models for
Europe ...................................................................4132
Wiring Diagram Ð DEF Ð/RHD Models With
Theft Warning System ...........................................4134
AUDIO/WAGON AND HARDTOP MODELS .............4136
Schematic/LHD Models with Sub-harness ............4136
Wiring Diagram Ð AUDIO Ð/LHD Models with
Sub-harness...........................................................4137
Schematic/RHD Models with Sub-harness ...........4140
Wiring Diagram Ð AUDIO Ð/RHD Models with
Sub-harness...........................................................4141
Schematic/LHD Models without Sub-harness .......4144
Wiring Diagram Ð AUDIO Ð/LHD Models
without Sub-harness ..............................................4145
Schematic/RHD Models without Sub-harness ......4149
Wiring Diagram Ð AUDIO Ð/RHD Models
without Sub-harness ..............................................4150
Wiring Diagram Ð CD AUTO CHANGER Ð ........4154
Wiring Diagram Ð REMOTE Ð ............................4155
Wiring Diagram Ð P/ANT Ð/LHD Models............4159
Wiring Diagram Ð P/ANT Ð/RHD Models ...........4160
TELEPHONE (PRE WIRE) ........................................4161
Wiring Diagram Ð PHONE Ð ..............................4161
NAVIGATION SYSTEM .............................................4162
System Description ................................................4162
Precautions for NAVI Control Unit Replacement ..4173
Component Parts And Harness Connector
Location .................................................................4173
Schematic ..............................................................4174
Wiring Diagram Ð NAVI Ð ...................................4175
CONTENTS(Cont'd)
EL-4002

Terminals and Reference Value for NAVI Control
Unit........................................................................\
.4183
Terminals and Reference Value for Display ..........4185
Terminals and Reference Value for NAVI Switch ..4186
Terminals and Reference Value for Transfer Unit .4187
Terminals and Reference Value for Voice
Change Relay ........................................................4188
Self-Diagnosis Function .........................................4189
Self-Diagnosis Mode..............................................4189
Con®rmation/Adjustment Mode .............................4192
Trouble Diagnoses.................................................4198
Example of Symptoms Judged Not Malfunction ...4218
Program Loading ...................................................4226
DOOR MIRROR/WAGON AND HARDTOP
MODELS ....................................................................4227
Wiring Diagram Ð MIRROR Ð/LHD Models........4227
Wiring Diagram Ð MIRROR Ð/RHD Models .......4229
HEATED SEAT/WAGON AND HARDTOP
MODELS ....................................................................4231
Wiring Diagram Ð HSEAT Ð................................4231
AUTOMATIC SPEED CONTROL DEVICE (ASCD)/
WAGON AND HARDTOP MODELS .........................4233
Schematic/TB48 and TD42Ti Engine Models .......4233
Wiring Diagram Ð ASCD Ð/TB48 and TD42Ti
Engine Models .......................................................4234
POWER WINDOW/WAGON AND HARDTOP
MODELS ....................................................................4238
Schematic ..............................................................4238
Wiring Diagram Ð WINDOW Ð ...........................4239
POWER DOOR LOCK/WAGON AND HARDTOP
MODELS ....................................................................4244
Schematic/Without Theft Warning System
Models ...................................................................4244
Wiring Diagram Ð D/LOCK Ð/Without Theft
Warning System Models ........................................4245
Schematic/With Theft Warning System Models ....4249
Wiring Diagram Ð D/LOCK Ð/LHD Models With
Theft Warning System ...........................................4250
Wiring Diagram Ð D/LOCK Ð/RHD Models With
Theft Warning System ...........................................4254
POWER DOOR LOCK/WAGON AND HARDTOP
MODELS ....................................................................4258
Schematic Ð Super Lock Ð .................................4258
Wiring Diagram Ð S/LOCK Ð ..............................4259
MULTI-REMOTE CONTROL SYSTEM/WAGON
AND HARDTOP MODELS ........................................4264
Wiring Diagram Ð MULTI Ð/LHD Models Except
for Europe, The Middle East and With Theft
Warning System ....................................................4264
Wiring Diagram Ð MULTI Ð/RHD Models
Except for Europe, South Africa and With Theft
Warning System ....................................................4266 Schematic/With Theft Warning System Models ....4268
Wiring Diagram Ð MULTI Ð/LHD Models with
Theft Warning System ...........................................4269
Wiring Diagram Ð MULTI Ð/RHD Models with
Theft Warning System ...........................................4273
Wiring Diagram Ð MULTI Ð/LHD Models for
Europe and The Middle East.................................4276
THEFT WARNING SYSTEM/WAGON AND
HARDTOP MODELS .................................................4278
Schematic ..............................................................4278
Wiring Diagram Ð THEFT Ð/LHD Models ...........4279
Wiring Diagram Ð THEFT Ð/RHD Models ..........4284
SUPER LOCK CONTROL UNIT/WAGON AND
HARDTOP MODELS .................................................4290
Schematic/RHD Models for Europe ......................4290
UNIFIED METER CONTROL UNIT (TIME
CONTROL SYSTEM)/WAGON AND HARDTOP
MODELS ....................................................................4292
Schematic/Except RHD Models for Europe and
With Theft Warning System Models ......................4292
NATS (Nissan Anti-Theft System)/TB48DE
ENGINE MODELS FOR EUROPE ............................4293
Wiring Diagram Ð NATS Ð ..................................4293
NATS (Nissan Anti-Theft System)/ZD ENGINE
MODELS ....................................................................4295
Wiring Diagram Ð NATS Ð/LHD Models for
Europe ...................................................................4295
Wiring Diagram Ð NATS Ð/RHD Models for
Europe ...................................................................4297
LOCATION OF ELECTRICAL UNITS/WAGON
AND HARDTOP MODELS ........................................4300
Engine Compartment .............................................4300
Passenger Compartment Ð LHD Models .............4302
Passenger Compartment Ð RHD Models ............4304
HARNESS LAYOUT ..................................................4307
How to Read Harness Layout ...............................4307
HARNESS LAYOUT/WAGON AND HARDTOP
MODELS ....................................................................4308
Main Harness/LHD Models....................................4308
Main Harness/RHD Models ...................................4312
Engine Room Harness/LHD Models .....................4316
Engine Room Harness/RHD Models .....................4322
Engine Harness .....................................................4328
Body Harness/LHD Models ...................................4330
Body Harness/RHD Models...................................4334
Body No. 2 Harness/LHD Models .........................4338
Body No. 2 Harness/RHD Models.........................4340
Chassis Harness....................................................4342
Front Door Harness (Driver side) ..........................4343
Front Door Harness (Passenger side) ..................4344
Rear Door Harness................................................4345
CONTENTS(Cont'd)
EL-4003

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

Display with pushed ªSETTINGº switch
The Function of Each Icon Is as Follows:
Icon Description
Display Settings of display can be performed.
Language Language 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 controlled by the joystick.
Help Explanation of navigational functions appear on the display.
Display with pushed ªINFOº button
+ When the ªINFOº button is pushed, the following will display on the screen.
+ Warning message (if there are any) ®DRIVE INFORMATION ®MAINTENANCE INFOMATION ®OFF.
Display items Display/Setting contents
DRIVE INFORMATION Elapsed Time Displays driving time with a range of 0:00:00 to 9999:59:59.
Driving Distance [(km) or (miles)] Displays driving distance with a range of 0.0 to 99999.9.
Average speed
[(km/h) or (MPH)] Displays average speed with a range of 0.0 to 999.9.
MAINTENANCE INFOMA-
TION Reminder 1 Maintenance intervals of vehicle's consumables and setting of cycles.
Reminder 2 Maintenance intervals of vehicle's consumables and setting of cycles.
Reminder 3 Maintenance intervals of vehicle's consumables and setting of cycles.
ªLANGUAGE SETTINGSº mode
+
Select one of the languages which appear on the screen.
NOTE:
Languages that do not appear on the screen must be loaded from
program disk.
SKIA9143E
SKIA1399E
NAVIGATION SYSTEM
System Description (Cont'd)
EL-4168

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

Angle adjustment
+Adjust turning angle output detected by the gyroscope.
Initialize location
Description
+Location data for GPS in the Center control unit is initialized in
Europe by this mode. Then it is possible for Center control unit
to receive GPS signals for short time.
How to perform ªInitialize Locationº mode
1. Select ªInitialize Locationº, and push ªENTERº.
2. A message ªPlease wait.º is displayed and then backs to another display of ªCon®rmation/Adjustmentº mode.
NOTE:
+ To continue GPS initialized operation, operate as follows back
to ªMapº screen.
Ð Push ªBACKº button twice.
Ð Push ªMAPº button.
+ After above operation, GPS indicator changes to green color
within half a minute, unless improper GPS located condition.
+ This operation should be performed in out side ®eld.
HISTORY OF ERRORS
SKIA0364E
SKIA1618E
SKIA1619E
SKIA9553E
NAVIGATION SYSTEM
Con®rmation/Adjustment Mode (Cont'd)
EL-4195

ROUTE SEARCHING
Symptom Cause Remedy
No route is shown. No road to be searched is found around the
destination.
Find wider road (orange road or wider)
nearby and reset the destination and passing
points onto it. Take care of the traveling
direction 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 current location or the destination. Turn the time-regulating search conditions
OFF. Turn ªAvoid regulation timeº 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 position or the passing
points may be intermittent. System is not malfunction.
When the vehicle has passed the
recommended route, it is deleted
from the screen. A recommended route is controlled by each
section. 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 area.)
System is not malfunction.
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
destination, 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 destina-
tion (passing points). For this reason, the rec-
ommended route may be detouring. System is not malfunction.
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 dis-
played as the recommended route.
NOTE:
Except for the ordinance-designated cities and the prefectural capitals (Applicable areas may be changed in
the updated map disc.)
NAVIGATION SYSTEM
Example of Symptoms Judged Not Malfunction
(Cont'd)
EL-4220

THE CURRENT LOCATION MARK IS IN A RIVER OR THE 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 THE SAME ROAD, SOMETIMES THE CURRENT LOCATION MARK IS IN
THE RIGHT PLACE AND SOMETIMES IT IS THE 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 corrected
until some special feature is found.
ALTHOUGH THE GPS RECEIVING DISPLAY IS GREEN, THE VEHICLE MARK DOES NOT
RETURN TO THE CORRECT LOCATION
+The GPS accuracy has an error of about 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.
THE NAME OF THE 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 THE DISPLAY DIFFER FOR THE BIRDVIEW TAND THE (FLAT) MAP SCREEN
Difference of the BIRDVIEW Tscreen from the ¯at 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
(¯at) 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.
NAVIGATION SYSTEM
Example of Symptoms Judged Not Malfunction
(Cont'd)
EL-4225