I had moistured on my 2004 sienna headlight, How can i removed the moistured?

there is no single adjuster but the horizontal adjustment is by using a combination of the 3 adjusting screws
as correct headlight aiming is a requirement by law , have it done by an experienced service center

Re: Condensation in Sienna Right Headlight.... - Toyota Sienna Forum

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Mar 10, 2009 - 15 posts - ‎9 authors Over the years, I was not a frequent visitor to SiennaClub...but when I did visit, it was... in the right, passenger-side xenon HID headlight of my 2004 Sienna...the light has... Check with your dealer and see if they can do anything about it. .... :o The HID bulb is also a PITA to remove because you are working ... Re: 2004 Sienna no brake lights, radio, heater/AC ...
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Toyota 2004 Sienna repair: Replacing HID ballast or ...

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May 1, 2010 - Replacing HID ballast or computer control lighting for the Headlight. Just got a ... Up until now, I did not know I had the option of seeing twice as far with Xenon. Also up to ... In the end after buttoning everything up, the light did work fine. .... Howdo you determine if you have a HID or non-HID light? Reply ...

CHECK YOUR POWER AND GROUND IF GOOD BAD OR WRONG BULB

I have written up all the steps on how to remove the bumper from a 2004 Toyota Sienna, including detailed pictures, on my blog at: John Fixes Stuff How to Remove the Front Bumper on 2004 2007 Toyota Sienna

I have written step-by-step instructions on how to replace the radiator in a 2004-2007 Toyota Sienna, including removing the bumper: John Fixes Stuff How to Replace the Radiator on 2004 2007 Toyota Sienna

Here's a great video that will show you exactly hos to remove the headlights in your 97-05 Chevy Venture">

The whole bulb will have to be replaced. One bulb has high/low beam. You should be able to access it from behind the light assembly. You should have a locking device at the headlight assembly and be able to pull the assembly out to make it easier.

If you have the HID bulbs, and there is moisture in the bottom of the assembly, the high voltage box at the bottom will not work. this requires removing the whole headlamp, removing the circuit board from the bottom and drying out. I have done mine twice before finally finding how water was getting in at the top seam of the lamp assembly. You will have to dis-assemble part of the wheel well and bumper cover to gain access to all the mounting bolts. Best of luck

The ECU on my 2004 Sienna passenger HID light went bad due to the condensation in the light, or at least that's what it looked like when I opened it up. The ballast was all corroded. Anyway, I searched and searched online for a way to fix it without paying the dealer $900. I just fixed it today for $92. I got the replacement ballast brand new for $92 shipped from The Retrofit Source at this site: http://www.theretrofitsource.com/product_info.php?cPath=26&products_id=161
Then I searched for an online manual for 2004 Sienna, found that, and went through the procedure of partially removing the bumper cover, taking the screws for the light fixture out, turning it on it's side and replacing the ballast. It took me about 2 hours to do the whole job, and everything works fine.
By the way, I got the part from The Retrofit Source in about 2-3 days without paying any expedited shipping. They were extremely helpful on the phone, delivered earlier than I expected, and saved me $800!!

Once the factory seal is leaking moisture, it can be hard to dry and reseal. You can try a hir dryer, and then look for a seam to lay silicone on, but the recommended fix is to replace the whole headlight assembly. The lens is not removable like on older lamps. The pieces are molded, and then epoxied together. Hard to split apart and get back together without damaging. Try a salvage yard.