Toyota Sequoia (2005). Manual - part 613

I28265

–

DIAGNOSTICS

NAVIGATION SYSTEM

DI–2247

2441

3

Navigation check mode (GPS information).

PREPARATION:
Enter the ”Navigation Check” mode (GPS information) (See
page 

DI–2180

).

CHECK:
Check how many of the following codes occur in the ”STS” col-
umn.

For DENSO Models: T, P
For AISIN AW Models: 04H, 08H
Standard: At least 3 codes occur.

OK

Replace radio and navigation assy.

NG

Proceed to next circuit inspection shown in problem symptoms table (See page 

DI–2184

).

I28266

I28267

DI–2248

–

DIAGNOSTICS

NAVIGATION SYSTEM

2442

Voice guidance does not function

INSPECTION PROCEDURE

1

Check navigation system setting.

PREPARATION:
(a)

Enter the ”MENU” screen by pressing the ”MENU” switch.

(b)

Enter the volume adjustment screen by pressing the ”Vol-
ume” switch.

CHECK:
Check that ”OFF” is not selected.
OK:

OFF is not selected.

NG

Turn voice guidance volume up to 4 using voice
adjustment switches.

OK

DIDD2–01

I28268

I28269

I28258

–

DIAGNOSTICS

NAVIGATION SYSTEM

DI–2249

2443

2

Check navigation setting.

PREPARATION:
(a)

Enter the ”MENU” screen by pressing the ”MENU” switch.

(b)

Enter the ”Setup” screen by pressing the ”Setup” switch.

CHECK:
Check that ”Auto Voice Guidance” is not OFF.
OK:

Auto voice guidance is not OFF.

CHECK:
Check that ”Voice Guidance in All Modes” is not OFF.
OK:

Voice guidance in all modes is not OFF.

NG

Turn auto voice guidance to ”ON”.

OK

3

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

DI–2250

–

DIAGNOSTICS

NAVIGATION SYSTEM

2444

4

Check radio and navigation assy.

CHECK:
Check if audio sound can be heard from the driver’s side speaker.
OK:

Audio sound can be heard.

NG

Proceed to next circuit inspection shown in
problem symptoms table (See page 

DI–2184

).

OK

Replace radio and navigation assy.