Toyota Sienna Service Manual: Display does not Dim when Light Control Switch is Turned ON
INSPECTION PROCEDURE
1 CHECK IMAGE QUALITY SETTING
- Enter the display adjustment screen by pressing the "DISPLAY" switch.
- Turn the light control switch to the TAIL position.
- Check if "DAY MODE" on the display adjustment is ON.
OK: "DAY MODE" is ON.
TURN "DAY MODE" SETTING OFF
2 CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE)
- Enter the "Display Check" mode (Vehicle Signal Check).
- Check that the display changes between ON and OFF according to the light control switch operation.
OK
HINT: The display is updated once per second. It is normal for the display to lag behind the actual switch operation.
REPLACE RADIO AND NAVIGATION ASSEMBLY
Illumination for Panel Switch does not Come on with Tail Switch ON
INSPECTION PROCEDURE
1 CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE)
Enter the "Display Check" mode (Vehicle Signal Check Mode).
Check that the display changes between ON and OF ...
Panel Switches do not Function
INSPECTION PROCEDURE
1 CHECK PANEL SWITCH
Check for foreign matter around the switches that might
prevent operation.
OK:
No foreign matter is found
2 CHECK PANEL SWITCH (DISPLAY CHECK MODE ...
Other materials:
Inspection
1. INSPECT STEERING PAD SWITCH LH (w/o
Navigation System)
Measure the resistance according to the values in
the table below.
Standard resistan
If the result is not as specified, replace the steering
pad switch LH.
2. INSPECT STEERING PAD SWITCH RH (w/ Navigation
System)
...
Fail-safe chart
If any of the following DTCs are set, the ECM enters fail-safe
mode to allow the vehicle to be driven temporarily.
HINT:
*1: The vehicle can be driven slowly when the accelerator
pedal is depressed firmly and slowly. If the accelerator
pedal is depressed quickly, the vehicle may ...
Checking and replacing
fuses
If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as necessary.
Turn the engine switch to the “LOCK” position (vehicles without a
smart key system) or off (vehicles with a smart key system).
Open the fuse box cover.
...