Toyota Sequoia (2005). Manual — part 614
I28258
–
DIAGNOSTICS
NAVIGATION SYSTEM
DI–2251
2445
Map display incomplete
INSPECTION PROCEDURE
1
Check map disc.
CHECK:
Check that the map disc is not deformed or cracked.
OK:
No deformations or cracks appear on the map disc.
NG
Replace map disc.
OK
2
Check display.
CHECK:
Check that displays other than the navigation display are complete.
OK:
No other incomplete displays are found.
NG
Replace radio and navigation assy.
OK
Proceed to next circuit inspection shown in problem symptoms table (See page
DIDD4–01
I28258
DI–2252
–
DIAGNOSTICS
NAVIGATION SYSTEM
2446
Route cannot be calculated
INSPECTION PROCEDURE
1
Check map disc.
CHECK:
Check that the map disc is not deformed or cracked.
OK:
No deformations or cracks appear on the map disc.
NG
Replace map disc.
OK
2
Set destination.
CHECK:
Set another destination and check if the system can calculate the route correctly.
OK:
Route can be correctly calculated.
OK
Normal operation.
NG
Proceed to next circuit inspection shown in problem symptoms table (See page
DIDD5–01
I28270
–
DIAGNOSTICS
NAVIGATION SYSTEM
DI–2253
2447
Gyro error
INSPECTION PROCEDURE
1
Navigation check mode (Vehicle sensors check).
PREPARATION:
Enter the ”Navigation Check” mode (Vehicle Sensors) (See
page
CHECK:
Check the gyro voltage.
OK:
0.1 to 4.5 V
NG
Replace radio and navigation assy.
OK
Proceed to next circuit inspection shown in diagnostic trouble code chart (See page
DIDD6–01
I28257
I28258
DI–2254
–
DIAGNOSTICS
NAVIGATION SYSTEM
2448
Map disc read error
INSPECTION PROCEDURE
1
Check map disc.
CHECK:
Check for dirt on the map disc surface.
OK:
No dirt is on the map disc surface.
HINT:
If dirt is on the map disc surface, wipe it with a soft cloth from
inside to outside in a radial direction.
NOTICE:
Do not use conventional record cleaner or anti–static pre-
servative.
NG
Clean map disc.
OK
2
Check map disc.
CHECK:
Check that the map disc is not deformed or cracked.
OK:
No deformations or cracks appear on the map disc.
NG
Replace map disc.
OK
Proceed to next circuit inspection shown in diagnostic trouble code chart (See page
DIDD8–01
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