what body, CE, LE, XLE or XLE limited?
this car has 2 system.s (option) front and rear, are both bad?
or just the front? you said only rest of van.
the front has 2 options, manual and auto controls panel.
which one you have?
i see no cables. that leaves damper motors or vacuum servos.
a real tech tests the controls, first. if they are good
he look in the FSM for the damper motor tests.
its there. and he hot wires it and finds, bingo, its bad.
and replaces it. labor can hit hr on dash pulls. 8hrs. work.
find another mech.
the parts are sold at Toyota. look there , in the parts sections
see it, see those parts.? sure are... there.... need help looking ask.
the dampers are bad.
a real mech finds out which damper is bad
if its a motor , he buys a new damper motor at TOY. for $150
if its just a cable it fixes that...
it can be 3 things
1: control bad. even a blown fuse.
2: connection from 1 to 3
3: bad damper motor.
bad parts 4,5,6?
(part 6, mode motor bad?)
http://www.trademotion.com/parts/2005/Toyota/Sienna/CE?siteid=214001&vehicleid=185020&diagram=8530070
FIRE HIM!
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