Toyota Sienna Service Manual: Vacuum tank
On-vehicle inspection
1. Inspect air cleaner cap sub-assembly
(A) check that air flows from port b to port a.
(B) apply 60 kpa (450 mm hg, 18 in. Hg) of vacuum to port b. Check that there is no change of vacuum after one minute.
Inspection
1. Inspect no. 3 Intake air control valve
assembly
(A) inspect actuator operation.
(1) With 26.7 Kpa (200 mm hg, 7.9 In. Hg) of
vacuum applied to the actuator, check that the
actuator rod m ...
Vacuum switching valve
Components
REMOVAL
1. REMOVE VACUUM SWITCHING VALVE ASSEMBLY
(a) Remove the 2 vacuum hoses and vacuum switching
valve connector.
(b) Remove the screw and vacuum switching valve. ...
Other materials:
Air Intake Control Circuit
DESCRIPTION
The air cleaner is equipped with two inlets, one of which is opened or closed
by the Air Intake Control
Valve (AICV). This system reduces intake noise and increases engine power at
low-to-high engine speed
range.
When the engine is operating in the low-to-mid speed range, this ...
Using the AUX port
To use the AUX port, connect a portable player, press the
“AUDIO” button, then select “AUX” to display the audio control
screen.
Connecting a portable audio player
Operating portable audio players connected to the audio system
The volume can be adjusted using the vehicle’s audio contr ...
Terminals of ecu
Check tire pressure warning ecu
HINT:
Inspect the connectors from the back side while the
connectors are connected.
(a) Disconnect the tire pressure warning antenna and
receiver connector.
(b) Measure the voltage according to the value(s) in the
table below.
(c) Connect the tire pr ...
