Toyota Sienna Service Manual: Screen Flicker or Color Distortion
INSPECTION PROCEDURE
1 CHECK DISPLAY SETTING
- Enter the display adjustment screen by pressing the "DISPLAY" switch.
- Reset display settings (contrast, brightness) and check that the screen appears normal
- Press the "INFO" switch and then select "Screen Setting."
- Set the "Switch Color" to "Green" (initial setting) and check if the display returns to normal.
OK: Returns to normal.
END
2 CHECK CABIN
- Check that the cabin temperature is warmer than -20C (-4.0F).
OK: Cabin is warmer than -20C (-4.0F).
3 CHECK COLOR BAR (DISPLAY CHECK MODE)
- Enter the "Display Check" mode (Color Bar Check).
- Check that the color bars match the displayed names.
OK: Color bars match the displayed names.
4 CHECK NAVI COLOR BAR (NAVIGATION CHECK MODE)
- Enter the "Navigation Check" mode (NAVI Color Bar Check).
- Check that the color bars match the displayed names.
OK: Color bars match the displayed names.
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Display Panel does not Open, Tilt or Tilts Improperly
INSPECTION PROCEDURE
1 CHECK RADIO AND NAVIGATION ASSEMBLY
Check for foreign matter or obstructions caught in the
moving parts of the panel.
OK:
No obstruction or foreign matter found.
...
Poor Sound Quality in All Modes (Low Volume)
INSPECTION PROCEDURE
1 CHECK AUDIO SETTINGS
Set "BASS", "MID" and "TREB" to the initial values and
check that sound is normal.
OK:
Malfunction disappears.
2 C ...
Other materials:
Problem symptoms table
POWER BACK DOOR SYSTEM
Symptom
Suspected Area
Power back door does not operate when switch* is
pressed (* Switch indicates the satellite switch for
power back door)
ECU-B fuse
Power back door main switch
Satellite switch
Power back door tou ...
Route cannot be Calculated
INSPECTION PROCEDURE
1 CHECK MAP DISC
Check that the map disc is not deformed or cracked.
OK:
No deformations or cracks on map disc.
2 SET DESTINATION
Set another destination and check if the system can
calculate the route correctly.
OK:
Route can be correctly calculated.
NO ...
Air Outlet Damper Control Servo Motor Circuit
DESCRIPTION
This circuit turns the servo motor and changes each damper position by
receiving the signals from the A/
C amplifier.
The air outlet damper servo motor switches the air outlet mode by rotating
(normal, reverse) with electrical
power from the A/C amplifier.
When the AUTO swit ...
