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 

DI–2184

).

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 

DI–2184

).

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 

DI–2180

).

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 

DI–2184

).

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 

DI–2184

).

DIDD8–01