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
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
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
OK
Replace radio and navigation assy.
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