TOYOTA HIGHLANDER 2001 Service Repair Manual

I38584
05-1812
- DIAGNOSTICSNAVIGATION SYSTEM
2002 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
MAP DISC CANNOT BE INSERTED
INSPECTION PROCEDURE
1 CHECK MAP DISC
(a) Check that the map disc is not deformed or cracked.
OK: No deformations or cracks appear on the map
disc.
NG REPLACE THE MAP DISC
OK
2 CHECK NAVIGATION ECU
(a) Check that the ºPUSHº indicator near the disc slot comes on.
OK: It does not come on.
NG PRESS THE EJECT SWITCH TO EJECT THE
DISC
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(SEE PAGE 05-1778)
05ISL-02

I39094
I38228
- DIAGNOSTICSNAVIGATION SYSTEM
05-1813
2003 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
VEHICLE POSITION MARK DEVIATES GREATLY
INSPECTION PROCEDURE
1 CHECK THE GPS MARK
(a) Check that the GPS mark is displayed.
OK:The GPS mark is displayed.
NG GO TO ºGPS MARK IS NOT DISPLAYEDº IN THE
FLOW CHART (SEE PAGE 05-1818)
OK
2 NAVIGATION CHECK MODE(VEHICLE SENSORS)
(a) Enter the ºNavigation Checkº mode (Vehicle Sensors) (see page 05-1765).
(b) While driving, compare the ºSPDº indicator to the reading
on the speedometer. Check that these readings are al-
most the same.
OK: The readings are almost the same.
NG GO TO ºSPEED SIGNAL CIRCUIT (NAVIGATION
ECU - COMBINATION METER ASSY)º IN THE
FLOW CHART (SEE PAGE 05-1838)
OK
05ISM-02

I38228
05-1814
- DIAGNOSTICSNAVIGATION SYSTEM
2004 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 NAVIGATION CHECK MODE(VEHICLE SENSORS)
(a) Move the shift lever to the R or P position.
Standard:
Shift leverDisplay
POFF
RON
HINT:
The display is updated once per second. As a result, it is normal
for the display to lag behind the actual change in the switch.
NG GO TO ºREVERSE SIGNAL CIRCUITº IN THE
FLOW CHART (SEE PAGE 05-1844)
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(SEE PAGE 05-1778)

I38146
- DIAGNOSTICSNAVIGATION SYSTEM
05-1815
2005 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
CURSOR OR MAP ROTATES WHEN VEHICLE IS STOPPED
INSPECTION PROCEDURE
1 CHECK CONDITION
(a) Check with the customer if the vehicle has been turned by
a turn-table at parking.
OK: The vehicle has not been turned by a turntable.
HINT:
If the ignition switch is turned to the ACC or ON position while
the vehicle is being turned by a turntable, the system may store
the angular velocity at this time. For this reason, the vehicle
position cursor could deviate.
NG TURN IGNITION SWITCH TO ON POSITION
WHEN VEHICLE IS COMPLETELY STOPPED
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(SEE PAGE 05-1778)
05ISN-02

I38584
I38228
05-1816
- DIAGNOSTICSNAVIGATION SYSTEM
2006 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
VEHICLE POSITION MARK IS NOT UPDATED
INSPECTION PROCEDURE
1 CHECK THE MAP DISC
(a) Check that the map disc is not deformed or cracked.
OK: No deformations or cracks appear on the map
disc.
NG REPLACE THE MAP DISC
OK
2 CHECK THE MAP DISPLAY
(a) Check if a touch scroll can be performed on the map display.
OK: Touch scroll can be performed.
NG PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN IN PROBLEM SYMPTOMS TABLE
(SEE PAGE 05-1778)
OK
3 NAVIGATION CHECK MODE(VEHICLE SENSORS)
(a) Enter the ºNavigation Checkº mode (Vehicle Sensors) (see page 05-1765).
(b) While driving, compare the ºSPEEDº indicator to the read-
ing on the speedometer. Check if these readings are al-
most the same.
OK: The readings are almost the same.
NG GO TO ºSPEED SIGNAL CIRCUIT (NAVIGATION
ECU - COMBINATION METER ASSY)º IN THE
FLOW CHART (SEE PAGE 05-1838)
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(SEE PAGE 05-1778)
05ISO-02

I38584
- DIAGNOSTICSNAVIGATION SYSTEM
05-1817
2007 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
CURRENT POSITION DISPLAY DOES NOT APPEAR
INSPECTION PROCEDURE
1 CHECK THE MAP DISC
(a) Check that the map disc is not deformed or cracked.
OK: No deformations or cracks appear on the map
disc.
NG REPLACE THE MAP DISC
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(SEE PAGE 05-1778)
05ISP-02

05-1818
- DIAGNOSTICSNAVIGATION SYSTEM
2008 Author
: Date
:
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

I38586
In a tunnel In a building Under an overpass
Forest or tree-lined path Between tall buildings Under a cliff, overhang
I38226
- DIAGNOSTICSNAVIGATION SYSTEM
05-1819
2009 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)

The following illustrations show some conditions where it may be difficult to receive GPS signals.
OK: GPS mark is displayed.
OK RETURNS TO NORMAL
NG
3 NAVIGATION CHECK MODE(GPS IMFORMATION)
(a) Enter the ºNavigation Checkº mode (GPS information) (see page 05-1764).
(b) Check how many of the following codes occur in the
ºSTSº column.
OK: At least 3 codes occur.
OK REPLACE NAVIGATION ECU
(SEE PAGE 67-9)
NG
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(SEE PAGE 05-1778)

I39095
I39096
05-1820
- DIAGNOSTICSNAVIGATION SYSTEM
2010 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
VOICE GUIDANCE DOES NOT FUNCTION
INSPECTION PROCEDURE
1 CHECK NAVIGATION SYSTEM SETTING
(a) Enter the ºMENUº screen by pressing the ºMENUº switch.
(b) Enter the volume adjustment screen by pressing the ºVol-
umeº switch.
(c) Check that ºOFFº is not selected.
OK: OFF is not selected.
NG TURN VOICE GUIDANCE VOLUME UP TO 4
USING VOICE ADJUSTMENT SWITCHES
OK
05ISR-02

I39097
I39854
I38584
- DIAGNOSTICSNAVIGATION SYSTEM
05-1821
2011 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
2 CHECK NAVIGATION SETTING
(a) Enter the ºMENUº screen by pressing the ºMENUº switch.
(b) Enter the ºSetupº screen by pressing the ºSetupº switch.
(c) Check that ºAuto Voice Guidanceº is not OFF.
OK: Auto voice guidance is not OFF.
(d) Check if ºVoice Guidance in All Modesº is ON.
OK: Voice guidance in all modes is ON.
NG TURN AUTO VOICE GUIDANCE TO ºONº
OK
3 CHECK THE MAP DISC
(a) Check that the map disc is not deformed or cracked.
OK: No deformations or cracks appear on the map
disc.
NG REPLACE THE MAP DISC
OK