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:
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 ...
Only Wireless Door Lock Control Function does not Operate
DESCRIPTION
The door control receiver receives a signal from the transmitter and sends
this signal to the multiplex
network body ECU. Then, the multiplex network body ECU controls operation of the
door locks and power
windows.
Then, the power slide door ECU causes the power slide door to o ...
Terminals of ECU
1. CHECK DRIVER SIDE J/B ASSEMBLY (MULTIPLEX NETWORK BODY ECU)
Disconnect the B6, 1C, 1K and 1L J/B connectors.
Measure the voltage and resistance according to
the value(s) in the table below.
HINT:
If the result is not as specified, there may be a
malfunction on the w ...
