Toyota Sienna Service Manual: Window defogger switch
INSPECTION
1. INSPECT WINDOW DEFOGGER SWITCH
- Check the defogger switch illuminates.
Standard
If the result is not as specified, replace the switch assembly or bulb.
- Check the defogger timer.
- Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 3.
- Connect positive (+) lead from the battery to terminal 1 through a 1.4 W test bulb.
- Push the outer defogger switch ON then check
that the switch and the test bulb turn off after
thy illuminate for 12 to 18 minutes.
If the result is not as specified, replace the switch assembly
Repair
1. REPAIR REAR WINDOW DEFOGGER WIRE
Clean the broken wire tips with grease, wax and
silicone remover.
Place the masking tape along the both sides of the
wire.
Thoroug ...
Windshield deicer relay
ON-VEHICLE INSPECTION
1. INSPECT FR WIPER DEICER RELAY
Inspect the resistance.
Standard resistance
If the result is not as specified, replace the relay. ...
Other materials:
Situations when it is necessary to contact dealers before towing
The following may indicate a problem with your transaxle. Contact
your Toyota dealer or commercial towing service before towing.
The engine is running but the vehicle does not move.
The vehicle makes an abnormal sound
Towing with a sling-type truck
Do not tow with a sling-type truck
to p ...
Shifting the shift lever
While the engine switch is in the
“ON” position (vehicles without a
smart key system) or IGNITION ON mode (vehicles with a smart
key system), move the shift lever with the brake pedal
depressed.
When shifting the shift lever between P and D, make sure that the vehicle
is completely ...
Active test
HINT:
Performing an ACTIVE TEST enables components
including the relays, VSV (Vacuum Switching Valve), and
actuators, to be operated without removing any parts.
The ACTIVE TEST can be performed with an intelligent
tester. Performing an ACTIVE TEST in the first step in
troubleshooting is one ...
