There is a fuse for the sun roof, check that first. If the fuse is ok check the relay for the sun roof motor, if it is ok check the motor itself. Be sure to check that you have a good power and groud at all these locations. My data base unfortuneatly doesn't gove the location of these componets for your vehicle, but your service manaul may and the owner's manual (if you have it) will. You could also try contacting your local Toyota dealer. If you approach them nicely and just ask them componet locations and not to diagnose your vehicle over the phone, most will give you the info.
Do you hear any sounds (click, whir, grind, etc.) When you try to open the roof.
The sun roof slides may also be gummed up or corroded, if accessible with the window closed (and you can hear some sound indicating it is trying to operate, try lubbicating. I suggest PB Blaster, it has the ability to break the bonds of the goo or corrosion that may be binding the regulator and it leaves a lubricant when it dries unlike the most popular stuff in the blue can.
Just a few ideas, let me know if these help or you have any more questions.
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Monday, August 31st, 2009 AT 12:12 AM