Toyota Sienna Service Manual: Description of initialization
(a) Perform initialization in the following cases:
- Before delivery of a new vehicle.
- After replacement of the tire pressure warning ECU*.
- After replacement of the tire pressure warning valve and transmitter.
- Specified tire pressure changes depending on the size or type of the tire.
*: Perform initialization after the transmitter ID registration is completed (See page TW-20).
(b) Before initialization
(1) Set the air pressure of all tires to the specified value.
Cold tire inflation pressure 
NOTICE: Perform the tire pressure adjustment after the vehicle has sufficiently cooled down. If the vehicle is not sufficiently cooled down, increase the air pressure by 20 to 30 kPa (0.2 to 0.3 kgf/cm2, 2.9 to 4.3 psi) above the specified value.
Initialization
...
Initialization procedure
(a) Make sure that the ignition switch is off.
(b) Connect the intelligent tester to the DLC3.
(c) Turn the ignition switch to the ON position.
(d) Select "TIREPRESS" by followi ...
Other materials:
ACIS Control Circuit
DESCRIPTION
This circuit opens and closes the Intake Air Control Valve (IACV) in response
to changes in the engine
load in order to increase the intake efficiency (ACIS: Acoustic Control
Induction System).
When the engine speed is between 0 and 4450 rpm and the throttle valve opening
angl ...
Seat heaters
For driver’s seat
For front passenger’s seat
On
The indicator light comes on.
Adjusts the seat temperature
The further you move the dial
upward, the warmer the seat
becomes.
The seat heaters can be used when the engine switch is in the “ON”
position
(vehicles ...
Front seat frame with adjuster
Inspection
1. INSPECT FRONT SEAT ADJUSTER SUB-ASSEMBLY LH
Check operation of the seat frame (slide motor).
Check if the seat frame moves smoothly when
the battery is connected to the slide motor
connector terminals.
OK
If the result is not as specified, replace t ...