My 2002 toyota sequia sun roof won't open. I hear relay click when I push button. But roof won't move. The fuse is good, I checked it and also replaced it.

Have you checked the fuse for the sun roof? Try this website to find the correct fuse to look at.
https://fuse-box.info/buick/buick-rendezvous-2002-2007-fuses-and-relays
You could also check the Relay. Listen to them as you or a helper pushes the button. A good relay should 'click' as you press the button.
The sunroof drain holes are hidden by the actual sunroof glass so getting to the drains is very difficult if the roof is closed.

Sorry no reset, some of these came with a plug near the front that can be removed and a socket inserted and you could close roof by turning, but if you hear the motor click then the motor may be bad or the track broke, most of the time a little arm breaks on the track that pulls and pushes glass using a threaded rod, see if you can push while hitting the button to see if it moves,take a good look and seeif you can see anything moving or turning on the track,

I have built, repaired and installed sunroofs for 20 years. Its hard to tell what problem is, so many variations for motors with relays, cams, programed circuit boards. To get the roof closed you can drop motor usually 3 screws then pull glass forward as far as you can, then from inside of truck you will have to take a screw driver and finish sliding cable forward somehow. When sliding by hand watch on the inside to see what parts are moving so you can finish sliding forward. Hope this helps.

Does the sun roof do anything whebn you press the button. if not, check your fuses and the sun roof switch. If fuses are good you want to check to see if the sun roof motor is getting power. If it is getting power it could be the motor itself. If it tries to move but can't then you have a mechanical problem. it might be binding so try giving it an assist by pushing on it when pressing the switch.

sounds like your sun roofs gear or track is stripped. Replace the motor for the side window had the same problem there really cheap.

Can't say for sure about this particular model, but most vehicles with sunroofs have a manual crank for situations like this. Generally it is located forward of the sunroof on the roof of the interior of the car, sometimes under a panel or interior light. This at least will get the roof closed until the problem can be fixed. It may also allow the sun roof to realign itself and help the electric crank to start working again.

sound to me that you are having a short in the dash with the radio and sun roof . check the relay see if it gets hot when you open the roof. trase the lines and make sure the two are not wired together.

I was lucky, the owners manual was still with the car and it addressed this problem. Tells you to remove the cover for the controls to the sun roof. Then remove the screw plug that is located in the forward left side of the control box hole (Need big screw driver to break it lose). Then remove the slug surounding the inner adjustment screw, being careful not to lose any shims or washers. Trun the adjustment screw counter clock wise to close the sunroof down and clock wise to shut the sunroof from the open position.
Looks like the motor is shoot. To prevent this from happening again I disconnected the white with black strip wire to the control pad and unsulated the lead. It can easiely be hooked back up in the future if the motor is replaced.
Good luck all!

change the switch providing fuse and relay is good

You will need to access the wiring to the sun roof and check for shorted/damaged wiring that might be rubbing on sheet metal and causing a short circuit, if you find nothing then the sun roof motor may be the culprit.