Toyota Sequoia (2005). Manual — part 609
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I28256
I28258
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DIAGNOSTICS
NAVIGATION SYSTEM
DI–2231
2425
CD cannot be ejected
INSPECTION PROCEDURE
1
Check radio and navigation assy.
PREPARATION:
Turn the ignition switch to the ACC position.
CHECK:
Keep pressing the ”DISC” eject switch for 5 seconds and check
if the disc is ejected by forced ejection.
OK:
The disc is ejected.
HINT:
The above operation can only be performed with the ignition
switch in the ACC position.
NG
Proceed to next circuit inspection shown in
problem symptoms table (See page
OK
2
Check the CD.
CHECK:
Check that the CD is not deformed or cracked.
OK:
No deformations or cracks appear on the CD.
NG
Replace CD.
OK
DIDCM–01
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DI–2232
–
DIAGNOSTICS
NAVIGATION SYSTEM
2426
3
Check radio and navigation assy.
CHECK:
Insert another CD and check if it is ejected.
OK:
The disc is ejected.
NG
Replace radio and navigation assy.
OK
Normal operation.
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DIAGNOSTICS
NAVIGATION SYSTEM
DI–2233
2427
Abnormal noise occurs
INSPECTION PROCEDURE
1
Check speaker installation
CHECK:
Check if each speaker is securely installed.
OK:
Each speaker is securely installed.
HINT:
The radio is equipped with a noise prevention system that blocks only excessively loud noise. If loud noise
occurs, check that all wiring is proper and that the antenna installation part ground and noise–prevention
equipment are installed.
Conditions under which noise occurs
Noise type
Noise increases when the accelerator pedal is depressed, but stops when
the engine is stopped.
Generator noise
Noise occurs during A/C or heater operation.
Blower motor noise
Noise occurs when the vehicle accelerates rapidly on an unpaved road or
after the ignition switch is turned on.
Fuel pump noise
Noise occurs when the horn switch is pressed and released or when pressed
and held.
Horn noise
Quiet noise is occurs while the engine is running, but stops when the engine
is stopped.
Ignition noise
Noise occurs synchronously with the blink of the turn signal.
Flasher noise
Noise occurs during window washer operation.
Washer noise
Noise occurs while the engine is running, and continues even after the engine
is stopped.
Water temperature sensor noise
Noise occurs during wiper operation.
Wiper noise
Noise occurs when the brake pedal is depressed.
Stop light switch noise
Others.
Static electricity stored on the vehicle
HINT:
Identify the condition under which the noise occurs, and check the noise filter on the relevant part.
First ensure that the noise is not coming from outside. Failure to do so makes noise source detection
difficult and may lead to a misdiagnosis.
Noise should be removed in descending order of loudness.
NG
Install it properly.
OK
Identification of noise source (See page
DIDCO–01
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I28257
I28258
DI–2234
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DIAGNOSTICS
NAVIGATION SYSTEM
2428
CD sound skips
INSPECTION PROCEDURE
1
Check CD.
CHECK:
Check for dirt on the CD surface.
OK:
The CD is clean.
HINT:
If dirt is on the CD 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 CD.
OK
2
Check CD.
CHECK:
Check that the CD is not deformed or cracked.
OK:
No deformations or cracks appear on the CD.
NG
Replace CD.
OK
DIDCQ–01
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