sat nav TOYOTA HIGHLANDER 2001 Service Repair Manual

BASIC FUNCTIONS
9
Orientation of the map
North-up screen
Heading-up screenYou can change the orientation of the map
from north-up to heading-up by touching
the orientation symbol at the top left of the
screen.
North-up symbol
Regardless of the direction of vehicle travel,
North is always up.
Heading-up symbol
The direction of vehicle travel is always up.
A red arrow indicates North.
Limitations of the navigation
system
This navigation system calculates the cur-
rent vehicle position using satellite sig-
nals, various vehicle signals, map data,
etc. However, the accurate position may
not be shown depending on the satellite
condition, road configuration, vehicle
condition or other circumstances.
The Global Positioning System (GPS) devel-
oped and operated by the U.S. Department of
Defense provides an accurate current vehicle
position using 3 to 4 satellites. The GPS sys-
tem has a certain level of inaccuracy. While
the navigation system will compensate for
this most of the time, occasional positioning
errors up to 300 feet (100 m) can and should
be expected. Generally, position errors will
be corrected within a few seconds.

BASIC FUNCTIONS
10
When your vehicle is receiving signals from
the satellites, the GPSº mark appears at the
top left of the screen.
The GPS signal may be physically ob-
structed, leading to inaccurate vehicle posi-
tion on the map display. Tunnels, tall build-
ings, trucks, or even the placement of objects
on the instrument panel may obstruct the
GPS signals.
The installation of window tinting may also ob-
struct the GPS signals. Most window tinting
contains some metallic content that will inter-
fere with the GPS signal reception. We ad-
vice against the use of window tinting on ve-
hicles equipped with navigation systems.
The GPS satellites may not send signals due
to repairs or improvements being made to
them.Even when the navigation system is receiving
clear GPS signals, the vehicle position may
not be shown accurately or inappropriate
route guidance may occur in some cases.
(a) Accurate current vehicle
position may not be shown in
the following cases:

When driving on a small angled Y-shaped
road.

When driving on a winding road.

When driving on a slippery road such as
in sand, gravel, snow, etc.

When driving on a long straight road.

When freeway and surface streets run in
parallel.

After moving by ferry or vehicle carrier.

When a long route is searched during high
speed driving.

When driving without setting the current
position calibration correctly.

After repeating a change of direction by
going forward and backward, or turning on
a turntable in the parking lot.

When leaving a covered parking lot or
parking garage.

When a roof carrier is installed.

When driving with tire chains installed.

When the tires are worn.

After replacing a tire or tires.

When using tires that are smaller or larger
than the factory specifications.

- DIAGNOSTICSNAVIGATION SYSTEM
05-1805
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2005 HIGHLANDER REPAIR MANUAL (RM1144U)
BLACK SCREEN (NO IMAGE APPEARS ON NAVIGATION AND
AUDIO SCREEN)
INSPECTION PROCEDURE
1 CHECK DISPLAY SETTING
(a) Check that the display is not in ºScreen OFFº mode.
OK: The display setting is not in ºScreen OFFº mode.
NG CHANGE SCREEN TO ºSCREEN ONº MODE
OK
2 CHECK IMAGE QUALITY SETTING
(a) Check if screen color quality can be set.
OK: Switching is possible.
OK PRESS PANEL SWITCH ºDISPLAYº AND SET
SCREEN COLOR QUALITY TO NORMAL
NG
3 CHECK CABIN
(a) Check if condensation is likely to occur, or the temperature is high or low (extremely cold) in the cabin.
HINT:
This problem occurs when the cabin is humid and the temperature rapidly changes. This condition may pro-
duce condensation, resulting in a short circuit.
OK: The above condition is not observed.
NG SET CABIN TEMPERATURE TO APPROPRIATE
DEGREES (20 TO 30
C) (68 TO 86
F)
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(SEE PAGE 05-1778)
05ISF-02

05-1818
- DIAGNOSTICSNAVIGATION SYSTEM
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2005 HIGHLANDER REPAIR MANUAL (RM1144U)
GPS MARK IS NOT DISPLAYED
INSPECTION PROCEDURE
1 CHECK CABIN
(a) Check the cabin for any object that might interrupt radio reception on the instrument panel. If such an
object exists, remove it and check if the GPS mark appears.
HINT:
GPS works using extremely weak radio waves originating from satellites. If the signal is interrupted by ob-
structions or another radio wave, the GPS system may not be able to properly receive the signal.
OK: Mark appears.
OK NORMAL OPERATION
NG
2 CHECK SURROUNDINGS
(a) Check if the vehicle is in a location where GPS signal reception is bad. If the vehicle is in such a place,
move it elsewhere and check if the GPS mark appears.
HINT:

GPS uses 24 satellites in 6 orbits so that at any time 5 satellites will be in line-of-sight of your vehicle.

GPS signals may not be received, however, depending on surroundings, vehicle direction, and time.
05ISQ-02

I38667
I38592
*2
*3*2
*5
*4
*1 *1
05-1772
- DIAGNOSTICSNAVIGATION SYSTEM
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2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3. NAVIGATION CHECK
(a) Navigation Check MENU Screen
HINT:
Each item is grayed out or not displayed based on the device settings.
(b) GPS information Screen
Satellite information/*1
Information from a maximum of 12 satellites is displayed on the screen. This information includes the target
GPS satellite number, elevation angle, direction and signal level.
Receiving condition/*2
(DENSO model)
DisplayContents
TThe system is receiving a GPS signal, but is not using it for location.
PThe system is using the GPS signal for location.
-The system cannot receive a GPS signal.
(AISIN AW Model)
DisplayContents
01HThe system cannot receive a GPS signal.
02HThe system is tracing a satellite.
03HThe system is receiving a GPS signal, but is not using it for location.
04HThe system is using the GPS signal for location.
Measurement information/*3
DisplayContents
2D2-dimensional location method is being used.
3D3-dimensional location method is being used.
NGLocation data cannot be used.
ErrorReception error has occurred.
-Any other state.

05IS3-02
I38224
I38225
I38226
05-1764
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2005 HIGHLANDER REPAIR MANUAL (RM1144U)
NAVIGATION CHECK MODE (GPS INFORMATION)
HINT:

This mode displays GPS satellite information.

Illustrations may differ from the actual vehicle depending on the device settings and options. There-
fore, some detailed areas may not be shown exactly the same as on the actual vehicle.
1. Enter diagnostic mode (see page 05-1784).
2. Select ºNavigation Checkº from the ºDiagnosis
MENUº screen.
3. Select ºGPS Informationº from the ºNavigation
Checkº screen.
4. When GPS information is displayed, check the GPS
conditions.
HINT:
This screen is updated once per second when input signals to
the vehicle are changed.

i
2005 HIGHLANDER Navigation from Aug. '04 Prod. (OM48539U)
Introduction
Thank you for your purchase of the Navigation System. Please read this manual carefully to ensure proper use. Keep this manual
in your vehicle at all times.
The Navigation System is one of the most technologically advanced vehicle accessories ever developed. The system receives satellite signals
from the Global Positioning System (GPS) operated by the U.S. Department of Defense. Using these signals and other vehicle sensors, the
system indicates your present position and assists in locating a desired destination.
The navigation system is designed to select efficient routes from your present starting location to your destination. The system is designed
to direct you to a destination that is unfamiliar to you in an efficient manner. The system uses the maps of DENSO. The calculated routes
may not be the shortest nor the least traffic congested. Your own personal local knowledge or short cutº may at times be faster than the calcu-
lated routes.
The navigation system's database includes about 75 Point of Interest categories to allow you to easily select destinations such as restaurants
and banks. If a destination is not in the database, you can enter the street address or a major intersection close to it and the system will guide
you there. The system will provide both a visual map and audio instructions. The audio instructions will announce the distance remaining
and the direction to turn in approaching a fork or intersection. These voice instructions will help you keep your eyes on the road and are timed
to provide enough time to allow you to maneuver, change lanes or slow down.
Please be aware that all current vehicle navigation systems have certain limitations that may affect their ability to perform properly.
The accuracy of the vehicle's position depends on the satellite condition, road configuration, vehicle condition or other circumstan-
ces. For more information on the limitations of the system, refer to pages 9 through 11.