02 sienna l/h driver side will attempt to open but only opens about 6 inches. After manually opening it will close though with button push.can u help. Thank you

SOURCE: 2004 toyota sienna sliding door locking trouble

Sounds like something isn't right.Try to disconnect the battery for a few minutes and see if that helps.Some times the ecu gets haywired and disconnecting the battery might reset it.And if it is the original battery you might want to get it tested.

SOURCE: could not open driver side manual sliding door in my 2003 Sienna

need to remove inner panel.. be careful not to break panel... ck latch seems broken.. o

SOURCE: 2005 Toyota Sienna XLE - Automatic sliding door not closing.

This may or may not work depending on exactly what is wrong with the door, I cant tell what is wrong without looking at it directly however:
You can try starting with all doors closed and unlocked, keys in hand disconnecting the battery and letting the vehicle sit for 2 min or so, then reconnect the battery. Put the key into the ignition and turn it to the on position but do not start the van. Next press the button to disable the power sliding door for the drivers side, then manually open the door fully, wait 5 seconds, then close it manually fully. Press button the button again to re-enable the power sliding door, then try to use it with the automatic feature either by pulling the handle or using your remote, this may or may not work depending on if the door has somehow become de-initialized (it should work now) however if something is broken inside the door closing mechanism or door closed/open sensors, the door will continue to malfunction.

SOURCE: 2006 Pontiac G6 GTP window auto close/open

OMG. I replaced the battery in my 06 G6 and had the same problem. the windows would not roll up or down how they did before. I read the answers on here and it does work. Hold up the window switch for ten seconds and it resets. You will have to do it to each window. Worked great. Thanks

SOURCE: Chrysler T&C Power Door Problem

If it stops in roughly the same spot every time, and won't respond after it has stopped, it sounds like a broken wire. It is likely losing its electrical current to run the motor. It should be right where the track bends when the door has stopped. Check for loose or frayed wiring inside the flexible plastic track just below the door. The wires will often wear after being bent over and over again. If you find a broken bit of wire, cut out that section and splice in a new length of wire. Be sure you do a good job splicing, or you may end up with the same issue again soon. I am not a mechanic by any means, this just makes sense to me, and I'm considering buying an 01 town and country with this issue, which is why I'm on this site to begin with. Best of luck -